Winona Weather Records (USC00219067)
Record envelope, standing records and threshold days for Winona (USC00219067), Minnesota, United States, with 117 years of record.
Key Facts for Winona
- Winona (USC00219067) is a weather station in Minnesota, United States at 44.04 latitude and -91.64 longitude, 199 m (652 ft) above sea level.
- The station reports from 1893 to 2009, 117 years of record.
- 1,464 records set at Winona still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Winona set a daily record high minimum temperature of 23.9 C (75.0 F) on 14 August 2009.
About the Station
- Location: Minnesota, United States, 44.04 latitude, -91.64 longitude.
- Elevation: 199 m (652 ft).
- Period of record: 1893 to 2009, 117 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 17.8 C (64.0 F) | -37.2 C (-35.0 F) | n/a | n/a |
| Feb | 22.8 C (73.0 F) | -36.1 C (-33.0 F) | n/a | n/a |
| Mar | 28.9 C (84.0 F) | -33.3 C (-27.9 F) | n/a | n/a |
| Apr | 35.6 C (96.1 F) | -15.6 C (3.9 F) | n/a | n/a |
| May | 41.7 C (107.1 F) | -6.1 C (21.0 F) | n/a | n/a |
| Jun | 41.1 C (106.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| Jul | 42.2 C (108.0 F) | 6.1 C (43.0 F) | n/a | n/a |
| Aug | 39.4 C (102.9 F) | 0.6 C (33.1 F) | n/a | n/a |
| Sep | 38.9 C (102.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Oct | 33.9 C (93.0 F) | -13.9 C (7.0 F) | n/a | n/a |
| Nov | 28.9 C (84.0 F) | -23.9 C (-11.0 F) | n/a | n/a |
| Dec | 18.3 C (64.9 F) | -33.3 C (-27.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 16 |
| 1894 | 16 |
| 1895 | 13 |
| 1896 | 13 |
| 1897 | 1 |
| 1902 | 5 |
| 1903 | 15 |
| 1904 | 8 |
| 1905 | 11 |
| 1906 | 12 |
| 1907 | 11 |
| 1908 | 9 |
| 1909 | 15 |
| 1910 | 17 |
| 1911 | 29 |
| 1912 | 20 |
| 1913 | 14 |
| 1914 | 9 |
| 1915 | 14 |
| 1916 | 19 |
| 1917 | 26 |
| 1918 | 14 |
| 1919 | 9 |
| 1920 | 16 |
| 1921 | 12 |
| 1922 | 17 |
| 1923 | 22 |
| 1924 | 19 |
| 1925 | 24 |
| 1926 | 16 |
| 1927 | 5 |
| 1928 | 15 |
| 1929 | 12 |
| 1930 | 17 |
| 1931 | 36 |
| 1932 | 15 |
| 1933 | 22 |
| 1934 | 25 |
| 1935 | 11 |
| 1936 | 43 |
| 1937 | 10 |
| 1938 | 12 |
| 1939 | 11 |
| 1940 | 12 |
| 1941 | 7 |
| 1942 | 12 |
| 1943 | 7 |
| 1944 | 10 |
| 1945 | 17 |
| 1946 | 10 |
| 1947 | 13 |
| 1948 | 12 |
| 1949 | 12 |
| 1950 | 22 |
| 1951 | 18 |
| 1952 | 8 |
| 1953 | 17 |
| 1954 | 12 |
| 1955 | 8 |
| 1956 | 9 |
| 1957 | 7 |
| 1958 | 7 |
| 1959 | 11 |
| 1960 | 4 |
| 1961 | 1 |
| 1962 | 16 |
| 1963 | 11 |
| 1964 | 19 |
| 1965 | 14 |
| 1966 | 16 |
| 1967 | 12 |
| 1968 | 12 |
| 1969 | 14 |
| 1970 | 4 |
| 1971 | 7 |
| 1972 | 27 |
| 1973 | 12 |
| 1974 | 9 |
| 1975 | 13 |
| 1976 | 19 |
| 1977 | 16 |
| 1978 | 14 |
| 1979 | 13 |
| 1980 | 6 |
| 1981 | 8 |
| 1982 | 4 |
| 1983 | 17 |
| 1984 | 5 |
| 1985 | 13 |
| 1986 | 14 |
| 1987 | 7 |
| 1988 | 14 |
| 1989 | 16 |
| 1990 | 13 |
| 1991 | 20 |
| 1992 | 7 |
| 1994 | 6 |
| 1995 | 9 |
| 1996 | 5 |
| 1997 | 5 |
| 1998 | 20 |
| 1999 | 11 |
| 2000 | 18 |
| 2001 | 16 |
| 2002 | 11 |
| 2003 | 10 |
| 2004 | 8 |
| 2005 | 7 |
| 2006 | 11 |
| 2007 | 12 |
| 2008 | 5 |
| 2009 | 6 |
All-Time Record Progression
10 new records| Date | Kind | Detail |
|---|---|---|
| 1931-06-28 | Record high maximum temperature | Record high maximum temperature 41.1 C (106.0 F) |
| 1931-06-29 | Record high minimum temperature | Record high minimum temperature 28.9 C (84.0 F) |
| 1931-07-17 | Record high minimum temperature | Record high minimum temperature 29.4 C (84.9 F) |
| 1934-05-31 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 1936-07-12 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
| 1962-03-05 | Record snow depth | Record snow depth 66.0 cm (26.0 in) |
| 1969-01-08 | Record snow depth | Record snow depth 68.6 cm (27.0 in) |
| 1971-01-29 | Record snow depth | Record snow depth 71.1 cm (28.0 in) |
| 1971-01-30 | Record snow depth | Record snow depth 81.3 cm (32.0 in) |
| 2007-08-19 | Record daily precipitation | Record daily precipitation 125.7 mm (4.9 in) |
Wettest Day of Each Month
Aug: 125.7 mm (4.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 57.2 mm (2.3 in) | 22 January 1998 |
| Feb | 41.9 mm (1.6 in) | 22 February 1922 |
| Mar | 50.8 mm (2.0 in) | 25 March 1996 |
| Apr | 76.2 mm (3.0 in) | 25 April 1994 |
| May | 97.3 mm (3.8 in) | 1 May 1936 |
| Jun | 112.3 mm (4.4 in) | 6 June 1914 |
| Jul | 109.2 mm (4.3 in) | 1 July 1978 |
| Aug | 125.7 mm (4.9 in) | 19 August 2007 |
| Sep | 94.0 mm (3.7 in) | 16 September 1992 |
| Oct | 67.1 mm (2.6 in) | 11 October 1986 |
| Nov | 87.6 mm (3.4 in) | 8 November 1945 |
| Dec | 52.8 mm (2.1 in) | 15 December 1996 |
Period of Record Coverage
1893 to 2009| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 346 | 95% | Yes |
| 1894 | 346 | 95% | Yes |
| 1895 | 343 | 94% | Yes |
| 1896 | 350 | 96% | Yes |
| 1897 | 27 | 7% | No |
| 1902 | 363 | 99% | Yes |
| 1903 | 359 | 98% | Yes |
| 1904 | 362 | 99% | Yes |
| 1905 | 362 | 99% | Yes |
| 1906 | 359 | 98% | Yes |
| 1907 | 330 | 90% | Yes |
| 1908 | 334 | 91% | Yes |
| 1909 | 364 | 100% | Yes |
| 1910 | 365 | 100% | Yes |
| 1911 | 363 | 99% | Yes |
| 1912 | 365 | 100% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 364 | 100% | Yes |
| 1916 | 364 | 99% | Yes |
| 1917 | 363 | 99% | Yes |
| 1918 | 363 | 99% | Yes |
| 1919 | 364 | 100% | Yes |
| 1920 | 364 | 99% | Yes |
| 1921 | 363 | 99% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 363 | 99% | Yes |
| 1924 | 364 | 99% | Yes |
| 1925 | 364 | 100% | Yes |
| 1926 | 363 | 99% | Yes |
| 1927 | 205 | 56% | No |
| 1928 | 359 | 98% | Yes |
| 1929 | 346 | 95% | Yes |
| 1930 | 240 | 66% | No |
| 1931 | 359 | 98% | Yes |
| 1932 | 362 | 99% | Yes |
| 1933 | 360 | 99% | Yes |
| 1934 | 332 | 91% | Yes |
| 1935 | 363 | 99% | Yes |
| 1936 | 364 | 99% | Yes |
| 1937 | 364 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 355 | 97% | Yes |
| 1944 | 146 | 40% | No |
| 1945 | 333 | 91% | Yes |
| 1946 | 363 | 99% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 363 | 99% | Yes |
| 1950 | 361 | 99% | Yes |
| 1951 | 351 | 96% | Yes |
| 1952 | 364 | 99% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 355 | 97% | Yes |
| 1958 | 363 | 99% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 361 | 99% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 363 | 99% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 363 | 99% | Yes |
| 1968 | 364 | 99% | Yes |
| 1969 | 360 | 99% | Yes |
| 1970 | 360 | 99% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 334 | 92% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 305 | 83% | No |
| 1977 | 358 | 98% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 336 | 92% | Yes |
| 1982 | 356 | 98% | Yes |
| 1983 | 239 | 65% | No |
| 1984 | 262 | 72% | No |
| 1985 | 233 | 64% | No |
| 1986 | 326 | 89% | No |
| 1987 | 328 | 90% | No |
| 1988 | 295 | 81% | No |
| 1989 | 351 | 96% | Yes |
| 1990 | 358 | 98% | Yes |
| 1991 | 331 | 91% | Yes |
| 1992 | 333 | 91% | Yes |
| 1993 | 251 | 69% | No |
| 1994 | 294 | 81% | No |
| 1995 | 299 | 82% | No |
| 1996 | 323 | 88% | No |
| 1997 | 335 | 92% | Yes |
| 1998 | 344 | 94% | Yes |
| 1999 | 340 | 93% | Yes |
| 2000 | 364 | 99% | Yes |
| 2001 | 358 | 98% | Yes |
| 2002 | 362 | 99% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 363 | 99% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 363 | 99% | Yes |
| 2007 | 364 | 100% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 276 | 76% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 14 August 2009 | Winona, US | daily high min | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 71 years | 32 of 100 (Routine) |
| 8 August 2009 | Winona, US | daily rain | 49.8 mm (2.0 in) | 8.7 mm (0.34 in) | 58 years | 33 of 100 (Routine) |
| 18 July 2009 | Winona, US | daily low max | 20.0 C (68.0 F) | 1.7 C (3.1 F) | 113 years | 44 of 100 (Notable) |
| 17 July 2009 | Winona, US | daily low max (Tie) | 22.2 C (72.0 F) | tie | 103 years | 10 of 100 (Routine) |
| 18 June 2009 | Winona, US | daily rain | 36.3 mm (1.4 in) | 10.4 mm (0.4 in) | 39 years | 29 of 100 (Routine) |
| 8 June 2009 | Winona, US | daily low max (Tie) | 15.0 C (59.0 F) | tie | 92 years | 9 of 100 (Routine) |
| 7 June 2009 | Winona, US | daily low max | 12.2 C (54.0 F) | 5.0 C (9.0 F) | 92 years | 47 of 100 (Notable) |
| 25 April 2009 | Winona, US | daily high max (Tie) | 30.0 C (86.0 F) | tie | 19 years | 3 of 100 (Routine) |
| 24 April 2009 | Winona, US | daily high max | 32.8 C (91.0 F) | 2.2 C (4.0 F) | 48 years | 27 of 100 (Routine) |
| 17 March 2009 | Winona, US | daily high min | 9.4 C (48.9 F) | 1.1 C (2.0 F) | 114 years | 41 of 100 (Notable) |
| 10 February 2009 | Winona, US | daily high min | 6.7 C (44.1 F) | 5.6 C (10.1 F) | 10 years | 20 of 100 (Routine) |
| 20 December 2008 | Winona, US | daily snowfall (Tie) | 9.9 cm (3.9 in) | tie | 4 years | 2 of 100 (Routine) |
| 9 December 2008 | Winona, US | daily rain | 11.9 mm (0.5 in) | 5.3 mm (0.21 in) | 90 years | 20 of 100 (Routine) |
| 9 December 2008 | Winona, US | daily snowfall | 12.4 cm (4.9 in) | 7.3 cm (2.9 in) | 31 years | 33 of 100 (Routine) |
| 5 November 2008 | Winona, US | daily high min | 12.8 C (55.0 F) | 1.1 C (2.0 F) | 52 years | 26 of 100 (Routine) |
| 4 November 2008 | Winona, US | daily high min | 15.6 C (60.1 F) | 2.8 C (5.0 F) | 52 years | 29 of 100 (Routine) |
| 4 November 2008 | Winona, US | daily high max (Tie) | 24.4 C (75.9 F) | tie | 44 years | 5 of 100 (Routine) |
| 3 November 2008 | Winona, US | daily high max | 25.0 C (77.0 F) | 1.1 C (2.0 F) | 55 years | 27 of 100 (Routine) |
| 27 September 2008 | Winona, US | daily high min (Tie) | 17.2 C (63.0 F) | tie | 10 years | 3 of 100 (Routine) |
| 18 April 2008 | Winona, US | daily rain | 50.3 mm (2.0 in) | 12.5 mm (0.5 in) | 91 years | 49 of 100 (Notable) |
Climate Trend
91 complete years, 1893 to 2008| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1893 | 6.9 C | -1.26 C |
| 1894 | 9.2 C | +1.06 C |
| 1895 | 7.4 C | -0.79 C |
| 1896 | 7.4 C | -0.79 C |
| 1902 | 7.9 C | -0.31 C |
| 1903 | 7.1 C | -1.11 C |
| 1904 | 6.4 C | -1.75 C |
| 1905 | 6.4 C | -1.77 C |
| 1906 | 7.2 C | -0.95 C |
| 1909 | 7.7 C | -0.43 C |
| 1910 | 8.8 C | +0.60 C |
| 1911 | 8.9 C | +0.77 C |
| 1912 | 7.3 C | -0.83 C |
| 1913 | 9.3 C | +1.11 C |
| 1914 | 8.8 C | +0.65 C |
| 1915 | 8.0 C | -0.16 C |
| 1916 | 7.4 C | -0.82 C |
| 1917 | 5.4 C | -2.74 C |
| 1918 | 8.1 C | -0.09 C |
| 1919 | 8.0 C | -0.15 C |
| 1920 | 7.8 C | -0.34 C |
| 1921 | 9.9 C | +1.70 C |
| 1922 | 8.8 C | +0.61 C |
| 1923 | 8.3 C | +0.16 C |
| 1924 | 6.6 C | -1.60 C |
| 1925 | 8.1 C | -0.10 C |
| 1926 | 7.5 C | -0.70 C |
| 1928 | 9.2 C | +1.04 C |
| 1929 | 7.1 C | -1.08 C |
| 1931 | 11.6 C | +3.46 C |
| 1932 | 8.6 C | +0.43 C |
| 1933 | 9.9 C | +1.70 C |
| 1935 | 8.4 C | +0.20 C |
| 1936 | 8.3 C | +0.11 C |
| 1937 | 8.0 C | -0.14 C |
| 1938 | 9.8 C | +1.64 C |
| 1939 | 10.1 C | +1.97 C |
| 1940 | 8.4 C | +0.21 C |
| 1941 | 9.9 C | +1.68 C |
| 1942 | 8.7 C | +0.50 C |
| 1943 | 7.7 C | -0.49 C |
| 1946 | 8.7 C | +0.50 C |
| 1947 | 8.1 C | -0.12 C |
| 1948 | 9.0 C | +0.83 C |
| 1949 | 9.6 C | +1.40 C |
| 1950 | 7.2 C | -0.98 C |
| 1951 | 7.2 C | -0.98 C |
| 1952 | 9.0 C | +0.79 C |
| 1953 | 9.7 C | +1.56 C |
| 1954 | 9.0 C | +0.81 C |
| 1955 | 7.9 C | -0.29 C |
| 1956 | 7.2 C | -1.01 C |
| 1957 | 7.5 C | -0.69 C |
| 1958 | 7.6 C | -0.56 C |
| 1959 | 7.2 C | -0.95 C |
| 1960 | 7.4 C | -0.80 C |
| 1961 | 7.5 C | -0.70 C |
| 1962 | 6.9 C | -1.26 C |
| 1963 | 7.5 C | -0.65 C |
| 1964 | 8.4 C | +0.23 C |
| 1965 | 6.8 C | -1.38 C |
| 1966 | 7.1 C | -1.09 C |
| 1967 | 7.2 C | -0.97 C |
| 1968 | 7.7 C | -0.47 C |
| 1969 | 6.9 C | -1.23 C |
| 1970 | 7.2 C | -0.94 C |
| 1971 | 7.0 C | -1.14 C |
| 1972 | 5.6 C | -2.56 C |
| 1973 | 7.9 C | -0.31 C |
| 1975 | 6.4 C | -1.73 C |
| 1977 | 7.9 C | -0.31 C |
| 1978 | 5.9 C | -2.25 C |
| 1979 | 5.9 C | -2.30 C |
| 1980 | 7.6 C | -0.62 C |
| 1982 | 7.0 C | -1.20 C |
| 1989 | 8.4 C | +0.26 C |
| 1990 | 10.0 C | +1.80 C |
| 1995 | 8.9 C | +0.71 C |
| 1996 | 7.5 C | -0.63 C |
| 1997 | 8.8 C | +0.65 C |
| 1998 | 11.2 C | +3.06 C |
| 1999 | 10.3 C | +2.10 C |
| 2000 | 9.5 C | +1.31 C |
| 2001 | 10.2 C | +2.04 C |
| 2002 | 10.0 C | +1.80 C |
| 2003 | 9.2 C | +1.04 C |
| 2004 | 9.3 C | +1.12 C |
| 2005 | 9.8 C | +1.62 C |
| 2006 | 10.2 C | +2.05 C |
| 2007 | 9.5 C | +1.28 C |
| 2008 | 8.1 C | -0.07 C |
The annual mean temperature here has risen by 0.08 C (0.00 to 0.16) per decade over 1893 to 2008. In Fahrenheit: 0.15 F (0.01 to 0.29) per decade. The slope is a straight line fitted to 91 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.08 C (0.00 to 0.16) per decade | 0.15 F (0.01 to 0.29) per decade | 1893 to 2008 | 91 | Rise |
| Mean daily maximum | 0.11 C (0.04 to 0.18) per decade | 0.2 F (0.1 to 0.3) per decade | 1893 to 2008 | 91 | Rise |
| Mean daily minimum | 0.06 C (-0.04 to 0.16) per decade | 0.1 F (-0.1 to 0.3) per decade | 1893 to 2008 | 91 | Not clearly different from zero |
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 2009| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 1936 | 36.1 C (97.0 F) | 113 |
| Coldest night (TNn) | -37.2 C (-35.0 F) | 1912 | -29.4 C (-20.9 F) | 113 |
| Wettest day (Rx1day) | 125.7 mm (4.9 in) | 2007 | 55.4 mm (2.2 in) | 113 |
| Wettest five days (Rx5day) | 274.3 mm (10.8 in) | 2007 | 84.5 mm (3.3 in) | 113 |
| Longest dry spell (CDD) | 52 days | 1943 | 23 days | 113 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 36.7 C (98.1 F) |
| 1894 | 39.4 C (102.9 F) |
| 1895 | 35.0 C (95.0 F) |
| 1896 | 35.6 C (96.1 F) |
| 1897 | 15.0 C (59.0 F) |
| 1902 | 32.2 C (90.0 F) |
| 1903 | 31.7 C (89.1 F) |
| 1904 | 33.3 C (91.9 F) |
| 1905 | 34.4 C (93.9 F) |
| 1906 | 32.8 C (91.0 F) |
| 1907 | 35.0 C (95.0 F) |
| 1908 | 35.6 C (96.1 F) |
| 1909 | 36.7 C (98.1 F) |
| 1910 | 38.9 C (102.0 F) |
| 1911 | 40.6 C (105.1 F) |
| 1912 | 36.1 C (97.0 F) |
| 1913 | 38.3 C (100.9 F) |
| 1914 | 35.6 C (96.1 F) |
| 1915 | 32.8 C (91.0 F) |
| 1916 | 36.7 C (98.1 F) |
| 1917 | 36.1 C (97.0 F) |
| 1918 | 36.1 C (97.0 F) |
| 1919 | 36.7 C (98.1 F) |
| 1920 | 34.4 C (93.9 F) |
| 1921 | 37.8 C (100.0 F) |
| 1922 | 38.9 C (102.0 F) |
| 1923 | 38.3 C (100.9 F) |
| 1924 | 33.3 C (91.9 F) |
| 1925 | 37.2 C (99.0 F) |
| 1926 | 37.2 C (99.0 F) |
| 1927 | 37.2 C (99.0 F) |
| 1928 | 35.6 C (96.1 F) |
| 1929 | 35.0 C (95.0 F) |
| 1930 | 31.1 C (88.0 F) |
| 1931 | 41.1 C (106.0 F) |
| 1932 | 38.9 C (102.0 F) |
| 1933 | 40.0 C (104.0 F) |
| 1934 | 41.7 C (107.1 F) |
| 1935 | 36.7 C (98.1 F) |
| 1936 | 42.2 C (108.0 F) |
| 1937 | 36.7 C (98.1 F) |
| 1938 | 35.0 C (95.0 F) |
| 1939 | 37.8 C (100.0 F) |
| 1940 | 39.4 C (102.9 F) |
| 1941 | 35.0 C (95.0 F) |
| 1942 | 36.7 C (98.1 F) |
| 1943 | 37.8 C (100.0 F) |
| 1944 | 26.1 C (79.0 F) |
| 1945 | 38.9 C (102.0 F) |
| 1946 | 35.6 C (96.1 F) |
| 1947 | 37.2 C (99.0 F) |
| 1948 | 39.4 C (102.9 F) |
| 1949 | 38.3 C (100.9 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 35.0 C (95.0 F) |
| 1952 | 36.1 C (97.0 F) |
| 1953 | 39.4 C (102.9 F) |
| 1954 | 36.7 C (98.1 F) |
| 1955 | 37.8 C (100.0 F) |
| 1956 | 36.7 C (98.1 F) |
| 1957 | 35.0 C (95.0 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 34.4 C (93.9 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 32.8 C (91.0 F) |
| 1963 | 37.8 C (100.0 F) |
| 1964 | 38.9 C (102.0 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 36.7 C (98.1 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 34.4 C (93.9 F) |
| 1970 | 36.7 C (98.1 F) |
| 1971 | 35.6 C (96.1 F) |
| 1972 | 36.1 C (97.0 F) |
| 1973 | 37.2 C (99.0 F) |
| 1974 | 39.4 C (102.9 F) |
| 1975 | 35.6 C (96.1 F) |
| 1976 | 36.7 C (98.1 F) |
| 1977 | 37.2 C (99.0 F) |
| 1978 | 37.8 C (100.0 F) |
| 1979 | 33.3 C (91.9 F) |
| 1980 | 37.8 C (100.0 F) |
| 1981 | 32.8 C (91.0 F) |
| 1982 | 37.2 C (99.0 F) |
| 1983 | 38.3 C (100.9 F) |
| 1984 | 33.9 C (93.0 F) |
| 1985 | 38.9 C (102.0 F) |
| 1986 | 35.6 C (96.1 F) |
| 1987 | 38.9 C (102.0 F) |
| 1988 | 40.0 C (104.0 F) |
| 1989 | 36.7 C (98.1 F) |
| 1990 | 37.8 C (100.0 F) |
| 1991 | 36.7 C (98.1 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 33.9 C (93.0 F) |
| 1994 | 34.4 C (93.9 F) |
| 1995 | 40.0 C (104.0 F) |
| 1996 | 35.6 C (96.1 F) |
| 1997 | 34.4 C (93.9 F) |
| 1998 | 33.9 C (93.0 F) |
| 1999 | 37.2 C (99.0 F) |
| 2000 | 33.9 C (93.0 F) |
| 2001 | 37.2 C (99.0 F) |
| 2002 | 36.1 C (97.0 F) |
| 2003 | 36.7 C (98.1 F) |
| 2004 | 33.3 C (91.9 F) |
| 2005 | 35.0 C (95.0 F) |
| 2006 | 37.2 C (99.0 F) |
| 2007 | 35.0 C (95.0 F) |
| 2008 | 32.8 C (91.0 F) |
| 2009 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -32.8 C (-27.0 F) |
| 1894 | -27.2 C (-17.0 F) |
| 1895 | -30.6 C (-23.1 F) |
| 1896 | -26.7 C (-16.1 F) |
| 1897 | -30.0 C (-22.0 F) |
| 1902 | -33.3 C (-27.9 F) |
| 1903 | -29.4 C (-20.9 F) |
| 1904 | -34.4 C (-29.9 F) |
| 1905 | -33.3 C (-27.9 F) |
| 1906 | -32.8 C (-27.0 F) |
| 1907 | -32.8 C (-27.0 F) |
| 1908 | -26.7 C (-16.1 F) |
| 1909 | -31.1 C (-24.0 F) |
| 1910 | -30.6 C (-23.1 F) |
| 1911 | -31.7 C (-25.1 F) |
| 1912 | -37.2 C (-35.0 F) |
| 1913 | -27.2 C (-17.0 F) |
| 1914 | -31.7 C (-25.1 F) |
| 1915 | -36.1 C (-33.0 F) |
| 1916 | -32.8 C (-27.0 F) |
| 1917 | -35.0 C (-31.0 F) |
| 1918 | -36.1 C (-33.0 F) |
| 1919 | -34.4 C (-29.9 F) |
| 1920 | -27.8 C (-18.0 F) |
| 1921 | -25.0 C (-13.0 F) |
| 1922 | -33.3 C (-27.9 F) |
| 1923 | -30.6 C (-23.1 F) |
| 1924 | -33.9 C (-29.0 F) |
| 1925 | -34.4 C (-29.9 F) |
| 1926 | -27.2 C (-17.0 F) |
| 1927 | -31.7 C (-25.1 F) |
| 1928 | -28.3 C (-18.9 F) |
| 1929 | -33.9 C (-29.0 F) |
| 1930 | -33.3 C (-27.9 F) |
| 1931 | -20.0 C (-4.0 F) |
| 1932 | -27.2 C (-17.0 F) |
| 1933 | -30.6 C (-23.1 F) |
| 1934 | -26.1 C (-15.0 F) |
| 1935 | -34.4 C (-29.9 F) |
| 1936 | -33.9 C (-29.0 F) |
| 1937 | -31.7 C (-25.1 F) |
| 1938 | -23.9 C (-11.0 F) |
| 1939 | -25.6 C (-14.1 F) |
| 1940 | -28.3 C (-18.9 F) |
| 1941 | -26.7 C (-16.1 F) |
| 1942 | -28.9 C (-20.0 F) |
| 1943 | -30.6 C (-23.1 F) |
| 1944 | -22.8 C (-9.0 F) |
| 1945 | -25.6 C (-14.1 F) |
| 1946 | -30.0 C (-22.0 F) |
| 1947 | -29.4 C (-20.9 F) |
| 1948 | -27.8 C (-18.0 F) |
| 1949 | -26.7 C (-16.1 F) |
| 1950 | -31.1 C (-24.0 F) |
| 1951 | -35.6 C (-32.1 F) |
| 1952 | -28.9 C (-20.0 F) |
| 1953 | -22.2 C (-8.0 F) |
| 1954 | -29.4 C (-20.9 F) |
| 1955 | -27.2 C (-17.0 F) |
| 1956 | -27.2 C (-17.0 F) |
| 1957 | -28.9 C (-20.0 F) |
| 1958 | -26.7 C (-16.1 F) |
| 1959 | -28.9 C (-20.0 F) |
| 1960 | -25.0 C (-13.0 F) |
| 1961 | -26.1 C (-15.0 F) |
| 1962 | -33.3 C (-27.9 F) |
| 1963 | -35.0 C (-31.0 F) |
| 1964 | -24.4 C (-11.9 F) |
| 1965 | -31.1 C (-24.0 F) |
| 1966 | -32.2 C (-26.0 F) |
| 1967 | -33.3 C (-27.9 F) |
| 1968 | -27.2 C (-17.0 F) |
| 1969 | -27.2 C (-17.0 F) |
| 1970 | -33.3 C (-27.9 F) |
| 1971 | -32.8 C (-27.0 F) |
| 1972 | -33.3 C (-27.9 F) |
| 1973 | -31.7 C (-25.1 F) |
| 1974 | -31.7 C (-25.1 F) |
| 1975 | -29.4 C (-20.9 F) |
| 1976 | -32.8 C (-27.0 F) |
| 1977 | -33.3 C (-27.9 F) |
| 1978 | -28.3 C (-18.9 F) |
| 1979 | -35.0 C (-31.0 F) |
| 1980 | -23.9 C (-11.0 F) |
| 1981 | -32.8 C (-27.0 F) |
| 1982 | -33.3 C (-27.9 F) |
| 1983 | -33.3 C (-27.9 F) |
| 1984 | -28.3 C (-18.9 F) |
| 1985 | -33.3 C (-27.9 F) |
| 1986 | -28.9 C (-20.0 F) |
| 1987 | -26.1 C (-15.0 F) |
| 1988 | -25.6 C (-14.1 F) |
| 1989 | -30.0 C (-22.0 F) |
| 1990 | -27.2 C (-17.0 F) |
| 1991 | -25.6 C (-14.1 F) |
| 1992 | -25.0 C (-13.0 F) |
| 1993 | -23.3 C (-9.9 F) |
| 1994 | -33.3 C (-27.9 F) |
| 1995 | -23.3 C (-9.9 F) |
| 1996 | -35.0 C (-31.0 F) |
| 1997 | -25.6 C (-14.1 F) |
| 1998 | -22.8 C (-9.0 F) |
| 1999 | -26.7 C (-16.1 F) |
| 2000 | -30.6 C (-23.1 F) |
| 2001 | -23.3 C (-9.9 F) |
| 2002 | -20.6 C (-5.1 F) |
| 2003 | -23.3 C (-9.9 F) |
| 2004 | -27.2 C (-17.0 F) |
| 2005 | -23.3 C (-9.9 F) |
| 2006 | -27.8 C (-18.0 F) |
| 2007 | -27.2 C (-17.0 F) |
| 2008 | -26.7 C (-16.1 F) |
| 2009 | -32.2 C (-26.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 39.6 mm (1.6 in) |
| 1894 | 40.9 mm (1.6 in) |
| 1895 | 54.6 mm (2.1 in) |
| 1896 | 65.8 mm (2.6 in) |
| 1897 | 22.4 mm (0.9 in) |
| 1902 | 52.8 mm (2.1 in) |
| 1903 | 51.6 mm (2.0 in) |
| 1904 | 40.9 mm (1.6 in) |
| 1905 | 76.2 mm (3.0 in) |
| 1906 | 53.3 mm (2.1 in) |
| 1907 | 71.1 mm (2.8 in) |
| 1908 | 65.0 mm (2.6 in) |
| 1909 | 86.9 mm (3.4 in) |
| 1910 | 53.6 mm (2.1 in) |
| 1911 | 71.9 mm (2.8 in) |
| 1912 | 46.7 mm (1.8 in) |
| 1913 | 47.2 mm (1.9 in) |
| 1914 | 112.3 mm (4.4 in) |
| 1915 | 63.0 mm (2.5 in) |
| 1916 | 66.5 mm (2.6 in) |
| 1917 | 37.8 mm (1.5 in) |
| 1918 | 44.2 mm (1.7 in) |
| 1919 | 43.2 mm (1.7 in) |
| 1920 | 71.1 mm (2.8 in) |
| 1921 | 53.1 mm (2.1 in) |
| 1922 | 41.9 mm (1.6 in) |
| 1923 | 50.8 mm (2.0 in) |
| 1924 | 70.6 mm (2.8 in) |
| 1925 | 70.6 mm (2.8 in) |
| 1926 | 44.2 mm (1.7 in) |
| 1927 | 26.2 mm (1.0 in) |
| 1928 | 74.7 mm (2.9 in) |
| 1929 | 35.3 mm (1.4 in) |
| 1930 | 56.4 mm (2.2 in) |
| 1931 | 39.6 mm (1.6 in) |
| 1932 | 46.5 mm (1.8 in) |
| 1933 | 48.5 mm (1.9 in) |
| 1934 | 57.9 mm (2.3 in) |
| 1935 | 55.4 mm (2.2 in) |
| 1936 | 97.3 mm (3.8 in) |
| 1937 | 72.6 mm (2.9 in) |
| 1938 | 63.8 mm (2.5 in) |
| 1939 | 51.3 mm (2.0 in) |
| 1940 | 40.1 mm (1.6 in) |
| 1941 | 52.3 mm (2.1 in) |
| 1942 | 79.0 mm (3.1 in) |
| 1943 | 41.7 mm (1.6 in) |
| 1944 | 61.0 mm (2.4 in) |
| 1945 | 87.6 mm (3.4 in) |
| 1946 | 50.0 mm (2.0 in) |
| 1947 | 52.3 mm (2.1 in) |
| 1948 | 55.1 mm (2.2 in) |
| 1949 | 57.4 mm (2.3 in) |
| 1950 | 55.4 mm (2.2 in) |
| 1951 | 87.9 mm (3.5 in) |
| 1952 | 69.6 mm (2.7 in) |
| 1953 | 37.3 mm (1.5 in) |
| 1954 | 48.0 mm (1.9 in) |
| 1955 | 69.3 mm (2.7 in) |
| 1956 | 71.1 mm (2.8 in) |
| 1957 | 56.9 mm (2.2 in) |
| 1958 | 49.0 mm (1.9 in) |
| 1959 | 40.1 mm (1.6 in) |
| 1960 | 46.0 mm (1.8 in) |
| 1961 | 81.5 mm (3.2 in) |
| 1962 | 69.1 mm (2.7 in) |
| 1963 | 32.3 mm (1.3 in) |
| 1964 | 47.2 mm (1.9 in) |
| 1965 | 69.3 mm (2.7 in) |
| 1966 | 45.5 mm (1.8 in) |
| 1967 | 47.0 mm (1.9 in) |
| 1968 | 90.2 mm (3.6 in) |
| 1969 | 45.5 mm (1.8 in) |
| 1970 | 43.9 mm (1.7 in) |
| 1971 | 57.4 mm (2.3 in) |
| 1972 | 107.2 mm (4.2 in) |
| 1973 | 69.9 mm (2.8 in) |
| 1974 | 47.8 mm (1.9 in) |
| 1975 | 60.2 mm (2.4 in) |
| 1976 | 27.9 mm (1.1 in) |
| 1977 | 58.4 mm (2.3 in) |
| 1978 | 109.2 mm (4.3 in) |
| 1979 | 41.1 mm (1.6 in) |
| 1980 | 58.9 mm (2.3 in) |
| 1981 | 56.1 mm (2.2 in) |
| 1982 | 51.8 mm (2.0 in) |
| 1983 | 36.6 mm (1.4 in) |
| 1984 | 54.1 mm (2.1 in) |
| 1985 | 44.2 mm (1.7 in) |
| 1986 | 82.6 mm (3.3 in) |
| 1987 | 37.3 mm (1.5 in) |
| 1988 | 43.2 mm (1.7 in) |
| 1989 | 58.4 mm (2.3 in) |
| 1990 | 58.4 mm (2.3 in) |
| 1991 | 83.3 mm (3.3 in) |
| 1992 | 94.0 mm (3.7 in) |
| 1993 | 68.6 mm (2.7 in) |
| 1994 | 76.2 mm (3.0 in) |
| 1995 | 76.2 mm (3.0 in) |
| 1996 | 52.8 mm (2.1 in) |
| 1997 | 58.4 mm (2.3 in) |
| 1998 | 86.4 mm (3.4 in) |
| 1999 | 76.2 mm (3.0 in) |
| 2000 | 69.3 mm (2.7 in) |
| 2001 | 64.5 mm (2.5 in) |
| 2002 | 69.6 mm (2.7 in) |
| 2003 | 49.8 mm (2.0 in) |
| 2004 | 74.4 mm (2.9 in) |
| 2005 | 54.4 mm (2.1 in) |
| 2006 | 33.5 mm (1.3 in) |
| 2007 | 125.7 mm (4.9 in) |
| 2008 | 50.3 mm (2.0 in) |
| 2009 | 49.8 mm (2.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 59.7 mm (2.4 in) |
| 1894 | 46.0 mm (1.8 in) |
| 1895 | 122.6 mm (4.8 in) |
| 1896 | 82.3 mm (3.2 in) |
| 1897 | 31.8 mm (1.3 in) |
| 1902 | 84.1 mm (3.3 in) |
| 1903 | 114.3 mm (4.5 in) |
| 1904 | 86.8 mm (3.4 in) |
| 1905 | 136.0 mm (5.4 in) |
| 1906 | 69.0 mm (2.7 in) |
| 1907 | 133.1 mm (5.2 in) |
| 1908 | 96.2 mm (3.8 in) |
| 1909 | 156.6 mm (6.2 in) |
| 1910 | 53.9 mm (2.1 in) |
| 1911 | 93.0 mm (3.7 in) |
| 1912 | 102.0 mm (4.0 in) |
| 1913 | 83.8 mm (3.3 in) |
| 1914 | 142.3 mm (5.6 in) |
| 1915 | 76.0 mm (3.0 in) |
| 1916 | 105.2 mm (4.1 in) |
| 1917 | 67.8 mm (2.7 in) |
| 1918 | 55.4 mm (2.2 in) |
| 1919 | 51.6 mm (2.0 in) |
| 1920 | 141.5 mm (5.6 in) |
| 1921 | 74.2 mm (2.9 in) |
| 1922 | 77.0 mm (3.0 in) |
| 1923 | 66.1 mm (2.6 in) |
| 1924 | 94.9 mm (3.7 in) |
| 1925 | 155.2 mm (6.1 in) |
| 1926 | 81.3 mm (3.2 in) |
| 1927 | 42.9 mm (1.7 in) |
| 1928 | 99.3 mm (3.9 in) |
| 1929 | 55.9 mm (2.2 in) |
| 1930 | 97.8 mm (3.9 in) |
| 1931 | 70.1 mm (2.8 in) |
| 1932 | 55.4 mm (2.2 in) |
| 1933 | 74.7 mm (2.9 in) |
| 1934 | 76.2 mm (3.0 in) |
| 1935 | 76.5 mm (3.0 in) |
| 1936 | 108.2 mm (4.3 in) |
| 1937 | 72.6 mm (2.9 in) |
| 1938 | 144.3 mm (5.7 in) |
| 1939 | 86.5 mm (3.4 in) |
| 1940 | 78.3 mm (3.1 in) |
| 1941 | 67.5 mm (2.7 in) |
| 1942 | 147.6 mm (5.8 in) |
| 1943 | 56.7 mm (2.2 in) |
| 1944 | 76.3 mm (3.0 in) |
| 1945 | 96.6 mm (3.8 in) |
| 1946 | 70.3 mm (2.8 in) |
| 1947 | 95.0 mm (3.7 in) |
| 1948 | 65.5 mm (2.6 in) |
| 1949 | 77.2 mm (3.0 in) |
| 1950 | 79.3 mm (3.1 in) |
| 1951 | 88.4 mm (3.5 in) |
| 1952 | 96.2 mm (3.8 in) |
| 1953 | 83.1 mm (3.3 in) |
| 1954 | 92.4 mm (3.6 in) |
| 1955 | 84.5 mm (3.3 in) |
| 1956 | 98.9 mm (3.9 in) |
| 1957 | 76.8 mm (3.0 in) |
| 1958 | 49.0 mm (1.9 in) |
| 1959 | 69.5 mm (2.7 in) |
| 1960 | 84.3 mm (3.3 in) |
| 1961 | 81.5 mm (3.2 in) |
| 1962 | 133.4 mm (5.3 in) |
| 1963 | 56.9 mm (2.2 in) |
| 1964 | 87.6 mm (3.4 in) |
| 1965 | 114.1 mm (4.5 in) |
| 1966 | 68.8 mm (2.7 in) |
| 1967 | 85.6 mm (3.4 in) |
| 1968 | 120.6 mm (4.7 in) |
| 1969 | 108.7 mm (4.3 in) |
| 1970 | 66.3 mm (2.6 in) |
| 1971 | 73.1 mm (2.9 in) |
| 1972 | 133.1 mm (5.2 in) |
| 1973 | 101.3 mm (4.0 in) |
| 1974 | 78.5 mm (3.1 in) |
| 1975 | 103.9 mm (4.1 in) |
| 1976 | 50.5 mm (2.0 in) |
| 1977 | 66.5 mm (2.6 in) |
| 1978 | 137.9 mm (5.4 in) |
| 1979 | 90.6 mm (3.6 in) |
| 1980 | 94.3 mm (3.7 in) |
| 1981 | 119.9 mm (4.7 in) |
| 1982 | 96.7 mm (3.8 in) |
| 1983 | 86.4 mm (3.4 in) |
| 1984 | 75.9 mm (3.0 in) |
| 1985 | 45.8 mm (1.8 in) |
| 1986 | 132.9 mm (5.2 in) |
| 1987 | 63.7 mm (2.5 in) |
| 1988 | 50.8 mm (2.0 in) |
| 1989 | 80.5 mm (3.2 in) |
| 1990 | 109.0 mm (4.3 in) |
| 1991 | 100.4 mm (4.0 in) |
| 1992 | 161.3 mm (6.4 in) |
| 1993 | 121.2 mm (4.8 in) |
| 1994 | 120.2 mm (4.7 in) |
| 1995 | 78.7 mm (3.1 in) |
| 1996 | 76.2 mm (3.0 in) |
| 1997 | 86.4 mm (3.4 in) |
| 1998 | 172.8 mm (6.8 in) |
| 1999 | 109.2 mm (4.3 in) |
| 2000 | 118.8 mm (4.7 in) |
| 2001 | 86.1 mm (3.4 in) |
| 2002 | 74.2 mm (2.9 in) |
| 2003 | 57.5 mm (2.3 in) |
| 2004 | 126.7 mm (5.0 in) |
| 2005 | 84.6 mm (3.3 in) |
| 2006 | 52.6 mm (2.1 in) |
| 2007 | 274.3 mm (10.8 in) |
| 2008 | 90.2 mm (3.6 in) |
| 2009 | 73.7 mm (2.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 26 days |
| 1894 | 31 days |
| 1895 | 15 days |
| 1896 | 23 days |
| 1897 | 9 days |
| 1902 | 19 days |
| 1903 | 48 days |
| 1904 | 31 days |
| 1905 | 21 days |
| 1906 | 23 days |
| 1907 | 20 days |
| 1908 | 30 days |
| 1909 | 29 days |
| 1910 | 36 days |
| 1911 | 27 days |
| 1912 | 21 days |
| 1913 | 25 days |
| 1914 | 20 days |
| 1915 | 28 days |
| 1916 | 20 days |
| 1917 | 23 days |
| 1918 | 22 days |
| 1919 | 25 days |
| 1920 | 18 days |
| 1921 | 14 days |
| 1922 | 16 days |
| 1923 | 26 days |
| 1924 | 18 days |
| 1925 | 23 days |
| 1926 | 14 days |
| 1927 | 14 days |
| 1928 | 18 days |
| 1929 | 22 days |
| 1930 | 18 days |
| 1931 | 38 days |
| 1932 | 22 days |
| 1933 | 26 days |
| 1934 | 33 days |
| 1935 | 28 days |
| 1936 | 27 days |
| 1937 | 24 days |
| 1938 | 21 days |
| 1939 | 21 days |
| 1940 | 20 days |
| 1941 | 20 days |
| 1942 | 38 days |
| 1943 | 52 days |
| 1944 | 26 days |
| 1945 | 25 days |
| 1946 | 32 days |
| 1947 | 39 days |
| 1948 | 20 days |
| 1949 | 34 days |
| 1950 | 24 days |
| 1951 | 20 days |
| 1952 | 30 days |
| 1953 | 31 days |
| 1954 | 22 days |
| 1955 | 22 days |
| 1956 | 21 days |
| 1957 | 29 days |
| 1958 | 29 days |
| 1959 | 18 days |
| 1960 | 26 days |
| 1961 | 22 days |
| 1962 | 38 days |
| 1963 | 22 days |
| 1964 | 43 days |
| 1965 | 17 days |
| 1966 | 27 days |
| 1967 | 23 days |
| 1968 | 32 days |
| 1969 | 26 days |
| 1970 | 28 days |
| 1971 | 13 days |
| 1972 | 27 days |
| 1973 | 17 days |
| 1974 | 14 days |
| 1975 | 17 days |
| 1976 | 16 days |
| 1977 | 18 days |
| 1978 | 20 days |
| 1979 | 17 days |
| 1980 | 32 days |
| 1981 | 25 days |
| 1982 | 33 days |
| 1983 | 17 days |
| 1984 | 15 days |
| 1985 | 15 days |
| 1986 | 23 days |
| 1987 | 29 days |
| 1988 | 18 days |
| 1989 | 18 days |
| 1990 | 17 days |
| 1991 | 20 days |
| 1992 | 23 days |
| 1993 | 16 days |
| 1994 | 14 days |
| 1995 | 25 days |
| 1996 | 24 days |
| 1997 | 17 days |
| 1998 | 31 days |
| 1999 | 24 days |
| 2000 | 14 days |
| 2001 | 25 days |
| 2002 | 15 days |
| 2003 | 24 days |
| 2004 | 20 days |
| 2005 | 15 days |
| 2006 | 25 days |
| 2007 | 28 days |
| 2008 | 16 days |
| 2009 | 31 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
91 years with a frostAcross 91 years with a frost, the median last spring frost at Winona falls on 28 April and the median first autumn frost on 7 October, which leaves a median of 163 days between them.
In 1966 to 2008 the median growing season was 169 days. That is 9 days more than in 1893 to 1931.
Fitted over all years, the growing season changes by +1.3 days per decade at this station.
| Measure | Median, all years | Earliest period (1893 to 1931) | Recent period (1966 to 2008) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 28 April | 2 May | 26 April | 6 days earlier | -0.6 days per decade |
| First autumn frost | 7 October | 7 October | 8 October | 1 day later | +0.7 days per decade |
| Growing days | 163 days | 160 days | 169 days | 9 days more | +1.3 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
93 years, 1895 to 2008A day with at least 56.9 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 124.9 mm (4.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 56.9 mm (2.2 in) | |
| 5 years | 73.2 mm (2.9 in) | |
| 10 years | 84.7 mm (3.3 in) | |
| 25 years | 100.1 mm (3.9 in) | |
| 50 years | 112.2 mm (4.4 in) | |
| 100 years | 124.9 mm (4.9 in) | Longer than the 93 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 93 years of values from 1895 to 2008.
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: 125.7 mm (4.9 in) in 2007; 112.3 mm (4.4 in) in 1914; 109.2 mm (4.3 in) in 1978.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
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 (2025-12-31).