Winterset 4N Weather Records (USC00139132)
Record envelope, standing records and threshold days for Winterset 4N (USC00139132), Iowa, United States, with 134 years of record.
Key Facts for Winterset 4N
- Winterset 4N (USC00139132) is a weather station in Iowa, United States at 41.40 latitude and -94.01 longitude, 297 m (975 ft) above sea level.
- The station reports from 1893 to 2026, 134 years of record.
- 1,464 records set at Winterset 4N still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Winterset 4N set a daily record high maximum temperature of 31.7 C (89.1 F) on 14 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Iowa, United States, 41.40 latitude, -94.01 longitude.
- Elevation: 297 m (975 ft).
- Period of record: 1893 to 2026, 134 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
11 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 19.4 C (66.9 F) | -36.7 C (-34.1 F) | 16.7 C (62.1 F) | -23.9 C (-11.0 F) |
| Feb | 26.1 C (79.0 F) | -35.0 C (-31.0 F) | 20.6 C (69.1 F) | -19.4 C (-2.9 F) |
| Mar | 33.3 C (91.9 F) | -37.2 C (-35.0 F) | 33.3 C (91.9 F) | -16.1 C (3.0 F) |
| Apr | 33.9 C (93.0 F) | -12.2 C (10.0 F) | 30.6 C (87.1 F) | -2.2 C (28.0 F) |
| May | 40.6 C (105.1 F) | -4.4 C (24.1 F) | 31.1 C (88.0 F) | -1.1 C (30.0 F) |
| Jun | 40.6 C (105.1 F) | 1.1 C (34.0 F) | 32.8 C (91.0 F) | 10.0 C (50.0 F) |
| Jul | 43.9 C (111.0 F) | 4.4 C (39.9 F) | 36.1 C (97.0 F) | 13.3 C (55.9 F) |
| Aug | 44.4 C (111.9 F) | 2.8 C (37.0 F) | 33.9 C (93.0 F) | 11.1 C (52.0 F) |
| Sep | 39.4 C (102.9 F) | -4.4 C (24.1 F) | 36.1 C (97.0 F) | 11.7 C (53.1 F) |
| Oct | 33.9 C (93.0 F) | -16.1 C (3.0 F) | 31.7 C (89.1 F) | 5.0 C (41.0 F) |
| Nov | 27.8 C (82.0 F) | -22.2 C (-8.0 F) | n/a | n/a |
| Dec | 20.6 C (69.1 F) | -31.7 C (-25.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 13 |
| 1894 | 20 |
| 1895 | 18 |
| 1896 | 11 |
| 1897 | 10 |
| 1898 | 11 |
| 1899 | 15 |
| 1900 | 5 |
| 1901 | 10 |
| 1902 | 12 |
| 1903 | 8 |
| 1904 | 6 |
| 1905 | 11 |
| 1906 | 8 |
| 1907 | 11 |
| 1908 | 8 |
| 1909 | 7 |
| 1910 | 4 |
| 1911 | 17 |
| 1912 | 14 |
| 1913 | 15 |
| 1914 | 13 |
| 1915 | 17 |
| 1916 | 13 |
| 1917 | 14 |
| 1918 | 11 |
| 1919 | 7 |
| 1920 | 8 |
| 1921 | 13 |
| 1922 | 3 |
| 1923 | 10 |
| 1924 | 16 |
| 1925 | 25 |
| 1926 | 7 |
| 1927 | 12 |
| 1928 | 13 |
| 1929 | 7 |
| 1930 | 27 |
| 1931 | 12 |
| 1932 | 2 |
| 1933 | 16 |
| 1934 | 54 |
| 1935 | 8 |
| 1936 | 42 |
| 1937 | 16 |
| 1938 | 18 |
| 1939 | 30 |
| 1940 | 8 |
| 1941 | 13 |
| 1942 | 11 |
| 1943 | 9 |
| 1944 | 11 |
| 1945 | 13 |
| 1946 | 13 |
| 1947 | 10 |
| 1948 | 5 |
| 1949 | 4 |
| 1950 | 13 |
| 1951 | 10 |
| 1952 | 3 |
| 1953 | 9 |
| 1954 | 10 |
| 1955 | 14 |
| 1956 | 12 |
| 1957 | 7 |
| 1958 | 11 |
| 1959 | 13 |
| 1960 | 12 |
| 1961 | 7 |
| 1962 | 22 |
| 1963 | 11 |
| 1964 | 11 |
| 1965 | 15 |
| 1966 | 15 |
| 1967 | 15 |
| 1968 | 7 |
| 1969 | 3 |
| 1970 | 15 |
| 1971 | 11 |
| 1972 | 14 |
| 1973 | 6 |
| 1974 | 11 |
| 1975 | 7 |
| 1976 | 14 |
| 1977 | 12 |
| 1978 | 8 |
| 1979 | 13 |
| 1980 | 9 |
| 1981 | 15 |
| 1982 | 3 |
| 1983 | 10 |
| 1984 | 1 |
| 1985 | 7 |
| 1986 | 9 |
| 1987 | 7 |
| 1988 | 11 |
| 1989 | 13 |
| 1990 | 12 |
| 1991 | 19 |
| 1992 | 13 |
| 1993 | 5 |
| 1994 | 5 |
| 1995 | 6 |
| 1996 | 9 |
| 1997 | 8 |
| 1998 | 18 |
| 1999 | 8 |
| 2000 | 11 |
| 2001 | 5 |
| 2002 | 11 |
| 2003 | 10 |
| 2004 | 11 |
| 2005 | 9 |
| 2006 | 7 |
| 2007 | 8 |
| 2008 | 8 |
| 2009 | 11 |
| 2010 | 4 |
| 2011 | 3 |
| 2012 | 20 |
| 2013 | 19 |
| 2014 | 4 |
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 4 |
| 2022 | 4 |
| 2023 | 7 |
| 2024 | 9 |
| 2025 | 15 |
| 2026 | 12 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1934-08-08 | Record high maximum temperature | Record high maximum temperature 44.4 C (111.9 F) |
| 1939-02-28 | Record daily snowfall | Record daily snowfall 35.6 cm (14.0 in) |
| 1942-01-01 | Record daily snowfall | Record daily snowfall 45.7 cm (18.0 in) |
| 1946-08-24 | Record daily precipitation | Record daily precipitation 138.9 mm (5.5 in) |
| 1962-03-01 | Record low minimum temperature | Record low minimum temperature -37.2 C (-35.0 F) |
Wettest Day of Each Month
Aug: 138.9 mm (5.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 75.2 mm (3.0 in) | 12 January 1960 |
| Feb | 40.4 mm (1.6 in) | 1 February 1973 |
| Mar | 61.0 mm (2.4 in) | 6 March 2026 |
| Apr | 87.4 mm (3.4 in) | 18 April 1976 |
| May | 94.7 mm (3.7 in) | 9 May 2004 |
| Jun | 133.4 mm (5.3 in) | 5 June 1947 |
| Jul | 114.3 mm (4.5 in) | 21 July 1948 |
| Aug | 138.9 mm (5.5 in) | 24 August 1946 |
| Sep | 126.7 mm (5.0 in) | 15 September 1992 |
| Oct | 99.1 mm (3.9 in) | 6 October 1931 |
| Nov | 81.8 mm (3.2 in) | 17 November 1952 |
| Dec | 67.3 mm (2.6 in) | 31 December 2007 |
Period of Record Coverage
1893 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 313 | 86% | No |
| 1894 | 348 | 95% | Yes |
| 1895 | 351 | 96% | Yes |
| 1896 | 356 | 97% | Yes |
| 1897 | 346 | 95% | Yes |
| 1898 | 352 | 96% | Yes |
| 1899 | 338 | 93% | Yes |
| 1900 | 351 | 96% | Yes |
| 1901 | 311 | 85% | No |
| 1902 | 344 | 94% | Yes |
| 1903 | 276 | 76% | No |
| 1904 | 300 | 82% | No |
| 1905 | 365 | 100% | Yes |
| 1906 | 363 | 99% | Yes |
| 1907 | 364 | 100% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 364 | 100% | Yes |
| 1910 | 363 | 99% | Yes |
| 1911 | 364 | 100% | Yes |
| 1912 | 365 | 100% | Yes |
| 1913 | 364 | 100% | Yes |
| 1914 | 364 | 100% | Yes |
| 1915 | 363 | 99% | Yes |
| 1916 | 363 | 99% | Yes |
| 1917 | 329 | 90% | Yes |
| 1918 | 364 | 100% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 361 | 99% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 364 | 100% | Yes |
| 1923 | 358 | 98% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 361 | 99% | Yes |
| 1926 | 362 | 99% | Yes |
| 1927 | 363 | 99% | Yes |
| 1928 | 365 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 363 | 99% | Yes |
| 1932 | 363 | 99% | Yes |
| 1933 | 363 | 99% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 364 | 99% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 363 | 99% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 362 | 99% | Yes |
| 1942 | 363 | 99% | Yes |
| 1943 | 357 | 98% | Yes |
| 1944 | 354 | 97% | Yes |
| 1945 | 350 | 96% | Yes |
| 1946 | 237 | 65% | No |
| 1947 | 258 | 71% | No |
| 1948 | 361 | 99% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 364 | 99% | Yes |
| 1953 | 312 | 85% | No |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 334 | 92% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 363 | 99% | Yes |
| 1974 | 335 | 92% | Yes |
| 1975 | 363 | 99% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 360 | 99% | Yes |
| 1980 | 363 | 99% | Yes |
| 1981 | 361 | 99% | Yes |
| 1982 | 263 | 72% | No |
| 1983 | 236 | 65% | No |
| 1984 | 89 | 24% | No |
| 1985 | 208 | 57% | No |
| 1986 | 350 | 96% | Yes |
| 1987 | 354 | 97% | Yes |
| 1988 | 363 | 99% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 358 | 98% | Yes |
| 1991 | 362 | 99% | Yes |
| 1992 | 355 | 97% | Yes |
| 1993 | 360 | 99% | Yes |
| 1994 | 361 | 99% | Yes |
| 1995 | 332 | 91% | Yes |
| 1996 | 360 | 98% | Yes |
| 1997 | 357 | 98% | Yes |
| 1998 | 364 | 100% | Yes |
| 1999 | 364 | 100% | Yes |
| 2000 | 350 | 96% | Yes |
| 2001 | 361 | 99% | Yes |
| 2002 | 359 | 98% | Yes |
| 2003 | 359 | 98% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 364 | 100% | Yes |
| 2008 | 360 | 98% | Yes |
| 2009 | 363 | 99% | Yes |
| 2010 | 360 | 99% | Yes |
| 2011 | 355 | 97% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 361 | 99% | Yes |
| 2014 | 135 | 37% | No |
| 2015 | 169 | 46% | No |
| 2016 | 273 | 75% | No |
| 2017 | 79 | 22% | No |
| 2022 | 58 | 16% | No |
| 2023 | 359 | 98% | Yes |
| 2024 | 345 | 94% | Yes |
| 2025 | 343 | 94% | Yes |
| 2026 | 238 | 65% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 14 October 2026 | Winterset 4N, US | daily high max (Provisional) | 31.7 C (89.1 F) | 0.6 C (1.1 F) | 72 years | 31 of 100 (Routine) |
| 13 October 2026 | Winterset 4N, US | daily high max (Provisional) | 31.7 C (89.1 F) | 0.6 C (1.1 F) | 51 years | 25 of 100 (Routine) |
| 12 October 2026 | Winterset 4N, US | daily high max (Tie, Provisional) | 31.1 C (88.0 F) | tie | 69 years | 7 of 100 (Routine) |
| 11 October 2026 | Winterset 4N, US | daily high max (Provisional) | 30.6 C (87.1 F) | 0.6 C (1.1 F) | 97 years | 39 of 100 (Notable) |
| 13 August 2026 | Winterset 4N, US | daily rain | 82.6 mm (3.3 in) | 40.2 mm (1.6 in) | 19 years | 39 of 100 (Notable) |
| 6 August 2026 | Winterset 4N, US | daily low max | 20.6 C (69.1 F) | 1.6 C (2.9 F) | 32 years | 23 of 100 (Routine) |
| 27 July 2026 | Winterset 4N, US | daily high min | 25.6 C (78.1 F) | 1.2 C (2.2 F) | 89 years | 39 of 100 (Notable) |
| 2 July 2026 | Winterset 4N, US | daily high min | 25.0 C (77.0 F) | 0.6 C (1.1 F) | 115 years | 41 of 100 (Notable) |
| 1 July 2026 | Winterset 4N, US | daily high min | 25.0 C (77.0 F) | 0.6 C (1.1 F) | 88 years | 37 of 100 (Notable) |
| 10 June 2026 | Winterset 4N, US | daily high min (Tie) | 22.2 C (72.0 F) | tie | 115 years | 10 of 100 (Routine) |
| 19 May 2026 | Winterset 4N, US | daily rain | 37.1 mm (1.5 in) | 9.7 mm (0.38 in) | 91 years | 45 of 100 (Notable) |
| 14 April 2026 | Winterset 4N, US | daily high min | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 84 years | 37 of 100 (Notable) |
| 10 April 2026 | Winterset 4N, US | daily rain | 43.7 mm (1.7 in) | 21.1 mm (0.8 in) | 48 years | 43 of 100 (Notable) |
| 31 March 2026 | Winterset 4N, US | daily high max | 31.1 C (88.0 F) | 2.8 C (5.0 F) | 48 years | 27 of 100 (Routine) |
| 22 March 2026 | Winterset 4N, US | monthly high max | 33.3 C (91.9 F) | 1.1 C (2.0 F) | 130 years | 51 of 100 (Notable) |
| 17 March 2026 | Winterset 4N, US | daily low max | -6.1 C (21.0 F) | 2.2 C (4.0 F) | 120 years | 42 of 100 (Notable) |
| 10 March 2026 | Winterset 4N, US | daily high max | 25.0 C (77.0 F) | 2.2 C (4.0 F) | 71 years | 33 of 100 (Routine) |
| 6 March 2026 | Winterset 4N, US | monthly rain | 61.0 mm (2.4 in) | 3.6 mm (0.14 in) | 35 years | 34 of 100 (Routine) |
| 16 February 2026 | Winterset 4N, US | daily high max | 20.6 C (69.1 F) | 1.7 C (3.1 F) | 44 years | 25 of 100 (Routine) |
| 10 February 2026 | Winterset 4N, US | daily high max | 20.6 C (69.1 F) | 5.0 C (9.0 F) | 50 years | 31 of 100 (Routine) |
Climate Trend
108 complete years, 1894 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1894 | 10.6 C | +0.62 C |
| 1895 | 8.8 C | -1.14 C |
| 1896 | 9.3 C | -0.63 C |
| 1897 | 9.0 C | -0.93 C |
| 1898 | 9.4 C | -0.54 C |
| 1899 | 9.3 C | -0.59 C |
| 1900 | 10.5 C | +0.59 C |
| 1902 | 9.6 C | -0.30 C |
| 1905 | 8.9 C | -0.99 C |
| 1906 | 10.1 C | +0.17 C |
| 1907 | 9.7 C | -0.20 C |
| 1908 | 10.6 C | +0.71 C |
| 1909 | 9.7 C | -0.28 C |
| 1910 | 10.4 C | +0.42 C |
| 1911 | 11.1 C | +1.12 C |
| 1912 | 8.9 C | -0.99 C |
| 1913 | 10.9 C | +0.95 C |
| 1914 | 10.7 C | +0.79 C |
| 1915 | 9.7 C | -0.20 C |
| 1916 | 9.8 C | -0.17 C |
| 1918 | 11.0 C | +1.05 C |
| 1919 | 10.1 C | +0.19 C |
| 1920 | 9.9 C | -0.04 C |
| 1921 | 12.2 C | +2.29 C |
| 1922 | 11.2 C | +1.24 C |
| 1923 | 10.5 C | +0.59 C |
| 1924 | 9.1 C | -0.83 C |
| 1925 | 10.4 C | +0.47 C |
| 1926 | 10.2 C | +0.29 C |
| 1927 | 10.5 C | +0.57 C |
| 1928 | 10.7 C | +0.78 C |
| 1929 | 8.8 C | -1.09 C |
| 1930 | 11.1 C | +1.20 C |
| 1931 | 12.6 C | +2.71 C |
| 1932 | 10.2 C | +0.23 C |
| 1933 | 11.6 C | +1.68 C |
| 1934 | 12.3 C | +2.39 C |
| 1935 | 10.2 C | +0.25 C |
| 1936 | 10.3 C | +0.41 C |
| 1937 | 9.8 C | -0.18 C |
| 1938 | 12.1 C | +2.15 C |
| 1939 | 12.0 C | +2.09 C |
| 1940 | 9.7 C | -0.25 C |
| 1941 | 11.4 C | +1.51 C |
| 1942 | 10.4 C | +0.43 C |
| 1943 | 10.0 C | +0.03 C |
| 1944 | 10.5 C | +0.58 C |
| 1945 | 9.3 C | -0.65 C |
| 1948 | 10.3 C | +0.41 C |
| 1949 | 10.8 C | +0.83 C |
| 1950 | 9.3 C | -0.59 C |
| 1951 | 8.8 C | -1.12 C |
| 1952 | 10.6 C | +0.68 C |
| 1954 | 11.1 C | +1.12 C |
| 1955 | 9.9 C | +0.00 C |
| 1956 | 10.4 C | +0.46 C |
| 1957 | 9.7 C | -0.22 C |
| 1958 | 9.3 C | -0.62 C |
| 1959 | 9.4 C | -0.51 C |
| 1960 | 8.7 C | -1.27 C |
| 1961 | 9.0 C | -0.93 C |
| 1962 | 9.1 C | -0.83 C |
| 1963 | 9.8 C | -0.12 C |
| 1964 | 10.2 C | +0.25 C |
| 1965 | 9.3 C | -0.61 C |
| 1966 | 9.0 C | -0.95 C |
| 1967 | 9.3 C | -0.65 C |
| 1968 | 9.5 C | -0.45 C |
| 1969 | 8.9 C | -1.08 C |
| 1970 | 9.3 C | -0.63 C |
| 1972 | 8.7 C | -1.22 C |
| 1973 | 10.1 C | +0.14 C |
| 1975 | 8.7 C | -1.23 C |
| 1976 | 8.0 C | -1.89 C |
| 1977 | 9.4 C | -0.57 C |
| 1978 | 8.1 C | -1.88 C |
| 1979 | 8.2 C | -1.75 C |
| 1980 | 9.9 C | -0.02 C |
| 1981 | 10.6 C | +0.62 C |
| 1986 | 11.1 C | +1.14 C |
| 1987 | 11.7 C | +1.75 C |
| 1988 | 10.8 C | +0.90 C |
| 1989 | 9.4 C | -0.50 C |
| 1990 | 11.1 C | +1.13 C |
| 1991 | 10.5 C | +0.61 C |
| 1992 | 10.1 C | +0.17 C |
| 1993 | 8.9 C | -1.04 C |
| 1994 | 10.0 C | +0.04 C |
| 1996 | 8.6 C | -1.37 C |
| 1997 | 9.1 C | -0.83 C |
| 1998 | 10.7 C | +0.73 C |
| 1999 | 9.9 C | -0.01 C |
| 2001 | 9.6 C | -0.30 C |
| 2002 | 9.6 C | -0.30 C |
| 2003 | 9.0 C | -0.91 C |
| 2004 | 9.0 C | -0.89 C |
| 2005 | 9.8 C | -0.12 C |
| 2006 | 10.4 C | +0.42 C |
| 2007 | 9.5 C | -0.47 C |
| 2008 | 7.7 C | -2.27 C |
| 2009 | 8.2 C | -1.75 C |
| 2010 | 8.9 C | -1.08 C |
| 2011 | 9.1 C | -0.86 C |
| 2012 | 10.9 C | +0.98 C |
| 2013 | 8.0 C | -1.91 C |
| 2023 | 10.9 C | +0.93 C |
| 2024 | 11.2 C | +1.27 C |
| 2025 | 10.4 C | +0.43 C |
The annual mean temperature here has fallen by 0.06 C (0.01 to 0.11) per decade over 1894 to 2025. In Fahrenheit: 0.11 F (0.01 to 0.20) per decade. The slope is a straight line fitted to 108 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.06 C (-0.11 to -0.01) per decade | -0.11 F (-0.20 to -0.01) per decade | 1894 to 2025 | 108 | Fall |
| Mean daily maximum | -0.05 C (-0.11 to 0.00) per decade | -0.10 F (-0.21 to 0.01) per decade | 1894 to 2025 | 108 | Not clearly different from zero |
| Mean daily minimum | -0.06 C (-0.12 to -0.01) per decade | -0.12 F (-0.22 to -0.02) per decade | 1894 to 2025 | 108 | Fall |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1893 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 44.4 C (111.9 F) | 1934 | 36.4 C (97.5 F) | 130 |
| Coldest night (TNn) | -37.2 C (-35.0 F) | 1962 | -26.7 C (-16.1 F) | 130 |
| Wettest day (Rx1day) | 138.9 mm (5.5 in) | 1946 | 63.5 mm (2.5 in) | 130 |
| Wettest five days (Rx5day) | 235.9 mm (9.3 in) | 1946 | 98.2 mm (3.9 in) | 130 |
| Longest dry spell (CDD) | 63 days | 1952 | 25 days | 130 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 37.8 C (100.0 F) |
| 1894 | 40.6 C (105.1 F) |
| 1895 | 37.2 C (99.0 F) |
| 1896 | 36.1 C (97.0 F) |
| 1897 | 36.7 C (98.1 F) |
| 1898 | 37.2 C (99.0 F) |
| 1899 | 37.8 C (100.0 F) |
| 1900 | 35.6 C (96.1 F) |
| 1901 | 42.8 C (109.0 F) |
| 1902 | 32.8 C (91.0 F) |
| 1903 | 35.6 C (96.1 F) |
| 1904 | 35.0 C (95.0 F) |
| 1905 | 35.0 C (95.0 F) |
| 1906 | 35.6 C (96.1 F) |
| 1907 | 36.1 C (97.0 F) |
| 1908 | 36.1 C (97.0 F) |
| 1909 | 35.6 C (96.1 F) |
| 1910 | 37.8 C (100.0 F) |
| 1911 | 42.2 C (108.0 F) |
| 1912 | 37.2 C (99.0 F) |
| 1913 | 39.4 C (102.9 F) |
| 1914 | 38.9 C (102.0 F) |
| 1915 | 33.9 C (93.0 F) |
| 1916 | 39.4 C (102.9 F) |
| 1917 | 38.3 C (100.9 F) |
| 1918 | 43.9 C (111.0 F) |
| 1919 | 37.2 C (99.0 F) |
| 1920 | 35.0 C (95.0 F) |
| 1921 | 37.2 C (99.0 F) |
| 1922 | 36.7 C (98.1 F) |
| 1923 | 36.7 C (98.1 F) |
| 1924 | 36.1 C (97.0 F) |
| 1925 | 38.9 C (102.0 F) |
| 1926 | 36.7 C (98.1 F) |
| 1927 | 37.2 C (99.0 F) |
| 1928 | 34.4 C (93.9 F) |
| 1929 | 36.7 C (98.1 F) |
| 1930 | 41.1 C (106.0 F) |
| 1931 | 41.7 C (107.1 F) |
| 1932 | 37.2 C (99.0 F) |
| 1933 | 40.0 C (104.0 F) |
| 1934 | 44.4 C (111.9 F) |
| 1935 | 38.9 C (102.0 F) |
| 1936 | 43.9 C (111.0 F) |
| 1937 | 38.9 C (102.0 F) |
| 1938 | 38.9 C (102.0 F) |
| 1939 | 39.4 C (102.9 F) |
| 1940 | 40.6 C (105.1 F) |
| 1941 | 40.6 C (105.1 F) |
| 1942 | 35.6 C (96.1 F) |
| 1943 | 33.9 C (93.0 F) |
| 1944 | 35.6 C (96.1 F) |
| 1945 | 36.1 C (97.0 F) |
| 1946 | 33.9 C (93.0 F) |
| 1947 | 37.8 C (100.0 F) |
| 1948 | 36.7 C (98.1 F) |
| 1949 | 35.0 C (95.0 F) |
| 1950 | 34.4 C (93.9 F) |
| 1951 | 36.1 C (97.0 F) |
| 1952 | 37.2 C (99.0 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 39.4 C (102.9 F) |
| 1955 | 40.0 C (104.0 F) |
| 1956 | 39.4 C (102.9 F) |
| 1957 | 38.9 C (102.0 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 34.4 C (93.9 F) |
| 1960 | 36.1 C (97.0 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 35.0 C (95.0 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 35.6 C (96.1 F) |
| 1965 | 35.6 C (96.1 F) |
| 1966 | 36.1 C (97.0 F) |
| 1967 | 36.1 C (97.0 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 34.4 C (93.9 F) |
| 1970 | 36.1 C (97.0 F) |
| 1971 | 36.1 C (97.0 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 33.9 C (93.0 F) |
| 1974 | 41.1 C (106.0 F) |
| 1975 | 37.2 C (99.0 F) |
| 1976 | 36.7 C (98.1 F) |
| 1977 | 40.0 C (104.0 F) |
| 1978 | 36.7 C (98.1 F) |
| 1979 | 36.7 C (98.1 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 36.1 C (97.0 F) |
| 1982 | 36.7 C (98.1 F) |
| 1983 | 41.1 C (106.0 F) |
| 1984 | 36.1 C (97.0 F) |
| 1985 | 37.2 C (99.0 F) |
| 1986 | 35.6 C (96.1 F) |
| 1987 | 36.1 C (97.0 F) |
| 1988 | 40.6 C (105.1 F) |
| 1989 | 36.1 C (97.0 F) |
| 1990 | 35.6 C (96.1 F) |
| 1991 | 33.9 C (93.0 F) |
| 1992 | 31.7 C (89.1 F) |
| 1993 | 33.3 C (91.9 F) |
| 1994 | 33.9 C (93.0 F) |
| 1995 | 37.2 C (99.0 F) |
| 1996 | 33.3 C (91.9 F) |
| 1997 | 36.1 C (97.0 F) |
| 1998 | 35.0 C (95.0 F) |
| 1999 | 37.2 C (99.0 F) |
| 2000 | 37.8 C (100.0 F) |
| 2001 | 35.6 C (96.1 F) |
| 2002 | 36.7 C (98.1 F) |
| 2003 | 38.3 C (100.9 F) |
| 2004 | 32.2 C (90.0 F) |
| 2005 | 35.0 C (95.0 F) |
| 2006 | 37.2 C (99.0 F) |
| 2007 | 35.6 C (96.1 F) |
| 2008 | 33.9 C (93.0 F) |
| 2009 | 34.4 C (93.9 F) |
| 2010 | 33.3 C (91.9 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 39.4 C (102.9 F) |
| 2013 | 37.8 C (100.0 F) |
| 2014 | 31.1 C (88.0 F) |
| 2015 | 33.3 C (91.9 F) |
| 2016 | 34.4 C (93.9 F) |
| 2017 | 24.4 C (75.9 F) |
| 2022 | 22.2 C (72.0 F) |
| 2023 | 37.2 C (99.0 F) |
| 2024 | 36.1 C (97.0 F) |
| 2025 | 36.7 C (98.1 F) |
| 2026 | 36.1 C (97.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -27.8 C (-18.0 F) |
| 1894 | -32.2 C (-26.0 F) |
| 1895 | -29.4 C (-20.9 F) |
| 1896 | -25.0 C (-13.0 F) |
| 1897 | -28.9 C (-20.0 F) |
| 1898 | -23.3 C (-9.9 F) |
| 1899 | -31.7 C (-25.1 F) |
| 1900 | -23.9 C (-11.0 F) |
| 1901 | -27.8 C (-18.0 F) |
| 1902 | -27.2 C (-17.0 F) |
| 1903 | -25.6 C (-14.1 F) |
| 1904 | -28.3 C (-18.9 F) |
| 1905 | -33.9 C (-29.0 F) |
| 1906 | -25.6 C (-14.1 F) |
| 1907 | -26.7 C (-16.1 F) |
| 1908 | -22.8 C (-9.0 F) |
| 1909 | -25.6 C (-14.1 F) |
| 1910 | -28.3 C (-18.9 F) |
| 1911 | -27.2 C (-17.0 F) |
| 1912 | -36.7 C (-34.1 F) |
| 1913 | -25.6 C (-14.1 F) |
| 1914 | -25.6 C (-14.1 F) |
| 1915 | -29.4 C (-20.9 F) |
| 1916 | -30.6 C (-23.1 F) |
| 1917 | -30.6 C (-23.1 F) |
| 1918 | -30.6 C (-23.1 F) |
| 1919 | -29.4 C (-20.9 F) |
| 1920 | -23.9 C (-11.0 F) |
| 1921 | -20.6 C (-5.1 F) |
| 1922 | -21.1 C (-6.0 F) |
| 1923 | -24.4 C (-11.9 F) |
| 1924 | -32.2 C (-26.0 F) |
| 1925 | -24.4 C (-11.9 F) |
| 1926 | -24.4 C (-11.9 F) |
| 1927 | -23.9 C (-11.0 F) |
| 1928 | -23.3 C (-9.9 F) |
| 1929 | -26.7 C (-16.1 F) |
| 1930 | -28.9 C (-20.0 F) |
| 1931 | -19.4 C (-2.9 F) |
| 1932 | -25.0 C (-13.0 F) |
| 1933 | -28.9 C (-20.0 F) |
| 1934 | -23.3 C (-9.9 F) |
| 1935 | -24.4 C (-11.9 F) |
| 1936 | -28.9 C (-20.0 F) |
| 1937 | -21.7 C (-7.1 F) |
| 1938 | -22.8 C (-9.0 F) |
| 1939 | -22.8 C (-9.0 F) |
| 1940 | -28.9 C (-20.0 F) |
| 1941 | -18.3 C (-0.9 F) |
| 1942 | -28.9 C (-20.0 F) |
| 1943 | -27.8 C (-18.0 F) |
| 1944 | -26.7 C (-16.1 F) |
| 1945 | -23.9 C (-11.0 F) |
| 1946 | -24.4 C (-11.9 F) |
| 1947 | -26.7 C (-16.1 F) |
| 1948 | -27.2 C (-17.0 F) |
| 1949 | -23.3 C (-9.9 F) |
| 1950 | -23.9 C (-11.0 F) |
| 1951 | -28.9 C (-20.0 F) |
| 1952 | -23.3 C (-9.9 F) |
| 1953 | -23.3 C (-9.9 F) |
| 1954 | -26.7 C (-16.1 F) |
| 1955 | -30.6 C (-23.1 F) |
| 1956 | -27.2 C (-17.0 F) |
| 1957 | -34.4 C (-29.9 F) |
| 1958 | -35.0 C (-31.0 F) |
| 1959 | -28.3 C (-18.9 F) |
| 1960 | -32.8 C (-27.0 F) |
| 1961 | -27.2 C (-17.0 F) |
| 1962 | -37.2 C (-35.0 F) |
| 1963 | -32.8 C (-27.0 F) |
| 1964 | -23.3 C (-9.9 F) |
| 1965 | -28.3 C (-18.9 F) |
| 1966 | -31.1 C (-24.0 F) |
| 1967 | -26.1 C (-15.0 F) |
| 1968 | -29.4 C (-20.9 F) |
| 1969 | -26.1 C (-15.0 F) |
| 1970 | -35.0 C (-31.0 F) |
| 1971 | -35.0 C (-31.0 F) |
| 1972 | -31.1 C (-24.0 F) |
| 1973 | -26.1 C (-15.0 F) |
| 1974 | -33.3 C (-27.9 F) |
| 1975 | -27.2 C (-17.0 F) |
| 1976 | -28.3 C (-18.9 F) |
| 1977 | -29.4 C (-20.9 F) |
| 1978 | -27.8 C (-18.0 F) |
| 1979 | -33.9 C (-29.0 F) |
| 1980 | -26.7 C (-16.1 F) |
| 1981 | -28.3 C (-18.9 F) |
| 1982 | -31.7 C (-25.1 F) |
| 1983 | -21.1 C (-6.0 F) |
| 1984 | -8.3 C (17.1 F) |
| 1985 | -27.8 C (-18.0 F) |
| 1986 | -23.9 C (-11.0 F) |
| 1987 | -24.4 C (-11.9 F) |
| 1988 | -29.4 C (-20.9 F) |
| 1989 | -31.7 C (-25.1 F) |
| 1990 | -25.0 C (-13.0 F) |
| 1991 | -25.0 C (-13.0 F) |
| 1992 | -22.2 C (-8.0 F) |
| 1993 | -23.9 C (-11.0 F) |
| 1994 | -28.3 C (-18.9 F) |
| 1995 | -24.4 C (-11.9 F) |
| 1996 | -35.0 C (-31.0 F) |
| 1997 | -27.8 C (-18.0 F) |
| 1998 | -23.9 C (-11.0 F) |
| 1999 | -28.9 C (-20.0 F) |
| 2000 | -26.7 C (-16.1 F) |
| 2001 | -25.6 C (-14.1 F) |
| 2002 | -21.7 C (-7.1 F) |
| 2003 | -23.3 C (-9.9 F) |
| 2004 | -25.0 C (-13.0 F) |
| 2005 | -26.1 C (-15.0 F) |
| 2006 | -24.4 C (-11.9 F) |
| 2007 | -24.4 C (-11.9 F) |
| 2008 | -26.7 C (-16.1 F) |
| 2009 | -30.0 C (-22.0 F) |
| 2010 | -30.0 C (-22.0 F) |
| 2011 | -25.0 C (-13.0 F) |
| 2012 | -22.2 C (-8.0 F) |
| 2013 | -31.1 C (-24.0 F) |
| 2014 | -26.1 C (-15.0 F) |
| 2015 | -23.9 C (-11.0 F) |
| 2016 | -28.9 C (-20.0 F) |
| 2017 | -20.6 C (-5.1 F) |
| 2022 | -24.4 C (-11.9 F) |
| 2023 | -22.2 C (-8.0 F) |
| 2024 | -30.0 C (-22.0 F) |
| 2025 | -25.6 C (-14.1 F) |
| 2026 | -23.9 C (-11.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 56.4 mm (2.2 in) |
| 1894 | 53.8 mm (2.1 in) |
| 1895 | 93.5 mm (3.7 in) |
| 1896 | 82.6 mm (3.3 in) |
| 1897 | 74.9 mm (2.9 in) |
| 1898 | 77.5 mm (3.1 in) |
| 1899 | 55.1 mm (2.2 in) |
| 1900 | 69.9 mm (2.8 in) |
| 1901 | 44.2 mm (1.7 in) |
| 1902 | 87.4 mm (3.4 in) |
| 1903 | 92.7 mm (3.6 in) |
| 1904 | 86.4 mm (3.4 in) |
| 1905 | 78.7 mm (3.1 in) |
| 1906 | 69.9 mm (2.8 in) |
| 1907 | 90.7 mm (3.6 in) |
| 1908 | 103.6 mm (4.1 in) |
| 1909 | 49.0 mm (1.9 in) |
| 1910 | 42.9 mm (1.7 in) |
| 1911 | 68.6 mm (2.7 in) |
| 1912 | 59.7 mm (2.4 in) |
| 1913 | 99.1 mm (3.9 in) |
| 1914 | 95.0 mm (3.7 in) |
| 1915 | 55.6 mm (2.2 in) |
| 1916 | 58.7 mm (2.3 in) |
| 1917 | 102.1 mm (4.0 in) |
| 1918 | 66.0 mm (2.6 in) |
| 1919 | 48.0 mm (1.9 in) |
| 1920 | 37.3 mm (1.5 in) |
| 1921 | 50.8 mm (2.0 in) |
| 1922 | 49.5 mm (1.9 in) |
| 1923 | 35.6 mm (1.4 in) |
| 1924 | 53.8 mm (2.1 in) |
| 1925 | 44.5 mm (1.8 in) |
| 1926 | 47.8 mm (1.9 in) |
| 1927 | 27.9 mm (1.1 in) |
| 1928 | 64.3 mm (2.5 in) |
| 1929 | 41.4 mm (1.6 in) |
| 1930 | 69.9 mm (2.8 in) |
| 1931 | 99.1 mm (3.9 in) |
| 1932 | 43.2 mm (1.7 in) |
| 1933 | 41.9 mm (1.6 in) |
| 1934 | 47.5 mm (1.9 in) |
| 1935 | 91.4 mm (3.6 in) |
| 1936 | 86.9 mm (3.4 in) |
| 1937 | 60.2 mm (2.4 in) |
| 1938 | 40.6 mm (1.6 in) |
| 1939 | 64.0 mm (2.5 in) |
| 1940 | 59.7 mm (2.4 in) |
| 1941 | 67.8 mm (2.7 in) |
| 1942 | 90.7 mm (3.6 in) |
| 1943 | 37.6 mm (1.5 in) |
| 1944 | 102.9 mm (4.1 in) |
| 1945 | 49.8 mm (2.0 in) |
| 1946 | 138.9 mm (5.5 in) |
| 1947 | 133.4 mm (5.3 in) |
| 1948 | 114.3 mm (4.5 in) |
| 1949 | 62.2 mm (2.4 in) |
| 1950 | 63.0 mm (2.5 in) |
| 1951 | 45.7 mm (1.8 in) |
| 1952 | 133.4 mm (5.3 in) |
| 1953 | 43.2 mm (1.7 in) |
| 1954 | 54.6 mm (2.1 in) |
| 1955 | 46.0 mm (1.8 in) |
| 1956 | 39.4 mm (1.6 in) |
| 1957 | 41.1 mm (1.6 in) |
| 1958 | 58.9 mm (2.3 in) |
| 1959 | 100.6 mm (4.0 in) |
| 1960 | 75.2 mm (3.0 in) |
| 1961 | 109.5 mm (4.3 in) |
| 1962 | 57.2 mm (2.3 in) |
| 1963 | 59.7 mm (2.4 in) |
| 1964 | 58.9 mm (2.3 in) |
| 1965 | 47.8 mm (1.9 in) |
| 1966 | 33.8 mm (1.3 in) |
| 1967 | 49.5 mm (1.9 in) |
| 1968 | 45.7 mm (1.8 in) |
| 1969 | 52.1 mm (2.1 in) |
| 1970 | 88.4 mm (3.5 in) |
| 1971 | 40.6 mm (1.6 in) |
| 1972 | 81.5 mm (3.2 in) |
| 1973 | 61.7 mm (2.4 in) |
| 1974 | 115.6 mm (4.6 in) |
| 1975 | 69.3 mm (2.7 in) |
| 1976 | 87.4 mm (3.4 in) |
| 1977 | 119.4 mm (4.7 in) |
| 1978 | 59.7 mm (2.4 in) |
| 1979 | 78.2 mm (3.1 in) |
| 1980 | 72.6 mm (2.9 in) |
| 1981 | 103.1 mm (4.1 in) |
| 1982 | 75.2 mm (3.0 in) |
| 1983 | 39.9 mm (1.6 in) |
| 1984 | 33.0 mm (1.3 in) |
| 1985 | 58.9 mm (2.3 in) |
| 1986 | 53.8 mm (2.1 in) |
| 1987 | 64.8 mm (2.6 in) |
| 1988 | 53.3 mm (2.1 in) |
| 1989 | 67.3 mm (2.6 in) |
| 1990 | 69.1 mm (2.7 in) |
| 1991 | 57.2 mm (2.3 in) |
| 1992 | 126.7 mm (5.0 in) |
| 1993 | 66.8 mm (2.6 in) |
| 1994 | 74.2 mm (2.9 in) |
| 1995 | 39.4 mm (1.6 in) |
| 1996 | 80.0 mm (3.1 in) |
| 1997 | 35.1 mm (1.4 in) |
| 1998 | 70.9 mm (2.8 in) |
| 1999 | 49.5 mm (1.9 in) |
| 2000 | 40.1 mm (1.6 in) |
| 2001 | 79.0 mm (3.1 in) |
| 2002 | 61.5 mm (2.4 in) |
| 2003 | 79.2 mm (3.1 in) |
| 2004 | 94.7 mm (3.7 in) |
| 2005 | 88.4 mm (3.5 in) |
| 2006 | 37.8 mm (1.5 in) |
| 2007 | 67.3 mm (2.6 in) |
| 2008 | 99.8 mm (3.9 in) |
| 2009 | 51.3 mm (2.0 in) |
| 2010 | 54.4 mm (2.1 in) |
| 2011 | 68.8 mm (2.7 in) |
| 2012 | 73.2 mm (2.9 in) |
| 2013 | 76.2 mm (3.0 in) |
| 2014 | 106.2 mm (4.2 in) |
| 2015 | 66.3 mm (2.6 in) |
| 2016 | 53.3 mm (2.1 in) |
| 2017 | 11.9 mm (0.5 in) |
| 2022 | 45.5 mm (1.8 in) |
| 2023 | 51.8 mm (2.0 in) |
| 2024 | 64.5 mm (2.5 in) |
| 2025 | 89.9 mm (3.5 in) |
| 2026 | 82.6 mm (3.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 64.3 mm (2.5 in) |
| 1894 | 63.5 mm (2.5 in) |
| 1895 | 94.0 mm (3.7 in) |
| 1896 | 175.5 mm (6.9 in) |
| 1897 | 98.8 mm (3.9 in) |
| 1898 | 105.9 mm (4.2 in) |
| 1899 | 85.3 mm (3.4 in) |
| 1900 | 118.7 mm (4.7 in) |
| 1901 | 58.6 mm (2.3 in) |
| 1902 | 136.9 mm (5.4 in) |
| 1903 | 147.8 mm (5.8 in) |
| 1904 | 96.6 mm (3.8 in) |
| 1905 | 78.7 mm (3.1 in) |
| 1906 | 96.6 mm (3.8 in) |
| 1907 | 129.4 mm (5.1 in) |
| 1908 | 128.0 mm (5.0 in) |
| 1909 | 64.9 mm (2.6 in) |
| 1910 | 73.9 mm (2.9 in) |
| 1911 | 113.8 mm (4.5 in) |
| 1912 | 81.5 mm (3.2 in) |
| 1913 | 100.2 mm (3.9 in) |
| 1914 | 161.6 mm (6.4 in) |
| 1915 | 103.5 mm (4.1 in) |
| 1916 | 67.8 mm (2.7 in) |
| 1917 | 119.8 mm (4.7 in) |
| 1918 | 78.7 mm (3.1 in) |
| 1919 | 151.4 mm (6.0 in) |
| 1920 | 65.5 mm (2.6 in) |
| 1921 | 96.1 mm (3.8 in) |
| 1922 | 89.3 mm (3.5 in) |
| 1923 | 71.9 mm (2.8 in) |
| 1924 | 106.1 mm (4.2 in) |
| 1925 | 61.0 mm (2.4 in) |
| 1926 | 112.1 mm (4.4 in) |
| 1927 | 45.7 mm (1.8 in) |
| 1928 | 77.8 mm (3.1 in) |
| 1929 | 64.8 mm (2.6 in) |
| 1930 | 101.4 mm (4.0 in) |
| 1931 | 113.9 mm (4.5 in) |
| 1932 | 84.3 mm (3.3 in) |
| 1933 | 45.5 mm (1.8 in) |
| 1934 | 84.8 mm (3.3 in) |
| 1935 | 134.1 mm (5.3 in) |
| 1936 | 93.0 mm (3.7 in) |
| 1937 | 64.5 mm (2.5 in) |
| 1938 | 67.1 mm (2.6 in) |
| 1939 | 99.5 mm (3.9 in) |
| 1940 | 112.3 mm (4.4 in) |
| 1941 | 116.8 mm (4.6 in) |
| 1942 | 109.3 mm (4.3 in) |
| 1943 | 76.9 mm (3.0 in) |
| 1944 | 118.1 mm (4.6 in) |
| 1945 | 73.2 mm (2.9 in) |
| 1946 | 235.9 mm (9.3 in) |
| 1947 | 154.5 mm (6.1 in) |
| 1948 | 133.6 mm (5.3 in) |
| 1949 | 86.1 mm (3.4 in) |
| 1950 | 105.9 mm (4.2 in) |
| 1951 | 68.3 mm (2.7 in) |
| 1952 | 176.6 mm (7.0 in) |
| 1953 | 77.2 mm (3.0 in) |
| 1954 | 135.0 mm (5.3 in) |
| 1955 | 78.7 mm (3.1 in) |
| 1956 | 61.0 mm (2.4 in) |
| 1957 | 84.0 mm (3.3 in) |
| 1958 | 147.3 mm (5.8 in) |
| 1959 | 196.8 mm (7.7 in) |
| 1960 | 100.9 mm (4.0 in) |
| 1961 | 141.0 mm (5.6 in) |
| 1962 | 105.9 mm (4.2 in) |
| 1963 | 76.0 mm (3.0 in) |
| 1964 | 90.4 mm (3.6 in) |
| 1965 | 105.0 mm (4.1 in) |
| 1966 | 63.6 mm (2.5 in) |
| 1967 | 102.1 mm (4.0 in) |
| 1968 | 78.8 mm (3.1 in) |
| 1969 | 67.3 mm (2.6 in) |
| 1970 | 166.4 mm (6.6 in) |
| 1971 | 78.3 mm (3.1 in) |
| 1972 | 161.5 mm (6.4 in) |
| 1973 | 110.6 mm (4.4 in) |
| 1974 | 139.0 mm (5.5 in) |
| 1975 | 124.2 mm (4.9 in) |
| 1976 | 126.3 mm (5.0 in) |
| 1977 | 224.5 mm (8.8 in) |
| 1978 | 112.0 mm (4.4 in) |
| 1979 | 113.7 mm (4.5 in) |
| 1980 | 145.5 mm (5.7 in) |
| 1981 | 126.5 mm (5.0 in) |
| 1982 | 78.0 mm (3.1 in) |
| 1983 | 57.1 mm (2.2 in) |
| 1984 | 68.1 mm (2.7 in) |
| 1985 | 78.5 mm (3.1 in) |
| 1986 | 88.4 mm (3.5 in) |
| 1987 | 121.7 mm (4.8 in) |
| 1988 | 77.1 mm (3.0 in) |
| 1989 | 114.7 mm (4.5 in) |
| 1990 | 146.8 mm (5.8 in) |
| 1991 | 73.9 mm (2.9 in) |
| 1992 | 150.0 mm (5.9 in) |
| 1993 | 86.1 mm (3.4 in) |
| 1994 | 74.2 mm (2.9 in) |
| 1995 | 59.7 mm (2.4 in) |
| 1996 | 128.8 mm (5.1 in) |
| 1997 | 61.3 mm (2.4 in) |
| 1998 | 105.9 mm (4.2 in) |
| 1999 | 73.3 mm (2.9 in) |
| 2000 | 77.9 mm (3.1 in) |
| 2001 | 114.5 mm (4.5 in) |
| 2002 | 78.0 mm (3.1 in) |
| 2003 | 119.8 mm (4.7 in) |
| 2004 | 117.1 mm (4.6 in) |
| 2005 | 143.0 mm (5.6 in) |
| 2006 | 71.6 mm (2.8 in) |
| 2007 | 109.0 mm (4.3 in) |
| 2008 | 149.7 mm (5.9 in) |
| 2009 | 85.1 mm (3.4 in) |
| 2010 | 126.7 mm (5.0 in) |
| 2011 | 62.5 mm (2.5 in) |
| 2012 | 97.5 mm (3.8 in) |
| 2013 | 90.2 mm (3.6 in) |
| 2014 | 116.7 mm (4.6 in) |
| 2015 | 101.6 mm (4.0 in) |
| 2016 | 62.8 mm (2.5 in) |
| 2017 | 13.9 mm (0.5 in) |
| 2022 | 60.0 mm (2.4 in) |
| 2023 | 84.6 mm (3.3 in) |
| 2024 | 81.5 mm (3.2 in) |
| 2025 | 117.1 mm (4.6 in) |
| 2026 | 153.7 mm (6.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 23 days |
| 1894 | 19 days |
| 1895 | 24 days |
| 1896 | 33 days |
| 1897 | 17 days |
| 1898 | 21 days |
| 1899 | 25 days |
| 1900 | 28 days |
| 1901 | 43 days |
| 1902 | 21 days |
| 1903 | 34 days |
| 1904 | 21 days |
| 1905 | 29 days |
| 1906 | 30 days |
| 1907 | 25 days |
| 1908 | 25 days |
| 1909 | 21 days |
| 1910 | 47 days |
| 1911 | 21 days |
| 1912 | 26 days |
| 1913 | 29 days |
| 1914 | 23 days |
| 1915 | 27 days |
| 1916 | 21 days |
| 1917 | 38 days |
| 1918 | 18 days |
| 1919 | 32 days |
| 1920 | 22 days |
| 1921 | 34 days |
| 1922 | 24 days |
| 1923 | 37 days |
| 1924 | 24 days |
| 1925 | 26 days |
| 1926 | 21 days |
| 1927 | 34 days |
| 1928 | 17 days |
| 1929 | 19 days |
| 1930 | 19 days |
| 1931 | 26 days |
| 1932 | 30 days |
| 1933 | 32 days |
| 1934 | 35 days |
| 1935 | 18 days |
| 1936 | 28 days |
| 1937 | 19 days |
| 1938 | 25 days |
| 1939 | 21 days |
| 1940 | 21 days |
| 1941 | 18 days |
| 1942 | 31 days |
| 1943 | 27 days |
| 1944 | 27 days |
| 1945 | 30 days |
| 1946 | 26 days |
| 1947 | 27 days |
| 1948 | 35 days |
| 1949 | 22 days |
| 1950 | 26 days |
| 1951 | 17 days |
| 1952 | 63 days |
| 1953 | 36 days |
| 1954 | 49 days |
| 1955 | 23 days |
| 1956 | 38 days |
| 1957 | 43 days |
| 1958 | 29 days |
| 1959 | 18 days |
| 1960 | 24 days |
| 1961 | 23 days |
| 1962 | 21 days |
| 1963 | 29 days |
| 1964 | 24 days |
| 1965 | 20 days |
| 1966 | 48 days |
| 1967 | 46 days |
| 1968 | 26 days |
| 1969 | 35 days |
| 1970 | 27 days |
| 1971 | 30 days |
| 1972 | 22 days |
| 1973 | 18 days |
| 1974 | 25 days |
| 1975 | 22 days |
| 1976 | 61 days |
| 1977 | 16 days |
| 1978 | 25 days |
| 1979 | 31 days |
| 1980 | 28 days |
| 1981 | 27 days |
| 1982 | 17 days |
| 1983 | 20 days |
| 1984 | 23 days |
| 1985 | 18 days |
| 1986 | 34 days |
| 1987 | 28 days |
| 1988 | 42 days |
| 1989 | 27 days |
| 1990 | 19 days |
| 1991 | 20 days |
| 1992 | 23 days |
| 1993 | 24 days |
| 1994 | 41 days |
| 1995 | 24 days |
| 1996 | 16 days |
| 1997 | 20 days |
| 1998 | 23 days |
| 1999 | 49 days |
| 2000 | 27 days |
| 2001 | 14 days |
| 2002 | 24 days |
| 2003 | 19 days |
| 2004 | 21 days |
| 2005 | 26 days |
| 2006 | 34 days |
| 2007 | 30 days |
| 2008 | 14 days |
| 2009 | 24 days |
| 2010 | 26 days |
| 2011 | 23 days |
| 2012 | 27 days |
| 2013 | 19 days |
| 2014 | 15 days |
| 2015 | 9 days |
| 2016 | 25 days |
| 2017 | 25 days |
| 2022 | 22 days |
| 2023 | 24 days |
| 2024 | 26 days |
| 2025 | 27 days |
| 2026 | 24 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
108 years with a frostAcross 108 years with a frost, the median last spring frost at Winterset 4N falls on 28 April and the median first autumn frost on 4 October, which leaves a median of 158 days between them.
In 1981 to 2025 the median growing season was 158 days. That is 4 days fewer than in 1894 to 1927.
Fitted over all years, the growing season changes by -0.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1894 to 1927) | Recent period (1981 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 28 April | 25 April | 28 April | 3 days later | +0.2 days per decade |
| First autumn frost | 4 October | 7 October | 3 October | 4 days earlier | -0.3 days per decade |
| Growing days | 158 days | 162 days | 158 days | 4 days fewer | -0.5 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
110 years, 1894 to 2024A day with at least 63.3 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 139.3 mm (5.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 63.3 mm (2.5 in) | |
| 5 years | 84.1 mm (3.3 in) | |
| 10 years | 97.7 mm (3.8 in) | |
| 25 years | 114.7 mm (4.5 in) | |
| 50 years | 127.1 mm (5.0 in) | |
| 100 years | 139.3 mm (5.5 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 110 years of values from 1894 to 2024.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 133.4 mm (5.3 in) in 1952; 126.7 mm (5.0 in) in 1992; 119.4 mm (4.7 in) in 1977.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Winterset 4N, at 1952. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1952 ran 0.4 C (0.7 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1952 | -0.4 | -0.7 | possible | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2002 to 2025 against 1961 to 1990Over 2002 to 2025, Winterset 4N had a mean temperature of 9.5 C (49.1 F) and 892.6 mm (35.1 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Hennepin Wtr Trmt Plt (United States, 391 km away), Park Forest Water (United States, 528 km away) and Aurora Water (United States, 476 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Hennepin Wtr Trmt Plt | United States | 391 km (243 mi) | 9.8 C (49.7 F) | 867.3 mm (34.1 in) | 0.41 |
| Park Forest Water | United States | 528 km (328 mi) | 9.3 C (48.8 F) | 918.3 mm (36.2 in) | 0.45 |
| Aurora Water | United States | 476 km (296 mi) | 9.2 C (48.6 F) | 892.4 mm (35.1 in) | 0.45 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-17).