Lewiston Weather Records (USC00174566)
Record envelope, standing records and threshold days for Lewiston (USC00174566), Maine, United States, with 118 years of record.
Key Facts for Lewiston
- Lewiston (USC00174566) is a weather station in Maine, United States at 44.10 latitude and -70.22 longitude, 55 m (180 ft) above sea level.
- The station reports from 1893 to 2010, 118 years of record.
- 1,464 records set at Lewiston still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Lewiston set a daily record precipitation of 43.4 mm (1.7 in) on 24 March 2010.
About the Station
- Location: Maine, United States, 44.10 latitude, -70.22 longitude.
- Elevation: 55 m (180 ft).
- Period of record: 1893 to 2010, 118 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) | -33.3 C (-27.9 F) | n/a | n/a |
| Feb | 18.3 C (64.9 F) | -33.3 C (-27.9 F) | n/a | n/a |
| Mar | 29.4 C (84.9 F) | -27.8 C (-18.0 F) | n/a | n/a |
| Apr | 32.8 C (91.0 F) | -15.0 C (5.0 F) | n/a | n/a |
| May | 38.3 C (100.9 F) | -3.3 C (26.1 F) | n/a | n/a |
| Jun | 37.2 C (99.0 F) | 1.1 C (34.0 F) | n/a | n/a |
| Jul | 38.9 C (102.0 F) | 6.7 C (44.1 F) | n/a | n/a |
| Aug | 37.8 C (100.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Sep | 36.1 C (97.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Oct | 32.2 C (90.0 F) | -6.7 C (19.9 F) | n/a | n/a |
| Nov | 23.9 C (75.0 F) | -16.7 C (1.9 F) | n/a | n/a |
| Dec | 19.4 C (66.9 F) | -32.8 C (-27.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 11 |
| 1894 | 25 |
| 1895 | 37 |
| 1896 | 17 |
| 1897 | 11 |
| 1898 | 10 |
| 1899 | 24 |
| 1900 | 16 |
| 1901 | 17 |
| 1902 | 17 |
| 1903 | 20 |
| 1904 | 18 |
| 1905 | 15 |
| 1906 | 18 |
| 1907 | 19 |
| 1908 | 18 |
| 1909 | 21 |
| 1910 | 13 |
| 1911 | 18 |
| 1912 | 23 |
| 1913 | 15 |
| 1914 | 25 |
| 1915 | 12 |
| 1916 | 14 |
| 1917 | 27 |
| 1918 | 19 |
| 1919 | 18 |
| 1920 | 13 |
| 1921 | 10 |
| 1922 | 11 |
| 1923 | 32 |
| 1924 | 8 |
| 1925 | 14 |
| 1926 | 9 |
| 1927 | 12 |
| 1928 | 12 |
| 1929 | 11 |
| 1930 | 20 |
| 1931 | 13 |
| 1932 | 9 |
| 1933 | 14 |
| 1934 | 16 |
| 1935 | 4 |
| 1936 | 17 |
| 1937 | 10 |
| 1938 | 12 |
| 1939 | 14 |
| 1940 | 11 |
| 1941 | 7 |
| 1942 | 10 |
| 1943 | 12 |
| 1944 | 13 |
| 1945 | 11 |
| 1946 | 9 |
| 1947 | 22 |
| 1948 | 18 |
| 1949 | 17 |
| 1950 | 8 |
| 1951 | 10 |
| 1952 | 7 |
| 1953 | 15 |
| 1954 | 4 |
| 1955 | 5 |
| 1956 | 21 |
| 1957 | 13 |
| 1958 | 5 |
| 1959 | 12 |
| 1960 | 2 |
| 1961 | 15 |
| 1962 | 5 |
| 1963 | 13 |
| 1964 | 12 |
| 1965 | 8 |
| 1966 | 11 |
| 1967 | 7 |
| 1968 | 9 |
| 1969 | 9 |
| 1970 | 10 |
| 1971 | 5 |
| 1972 | 8 |
| 1973 | 6 |
| 1974 | 10 |
| 1975 | 12 |
| 1976 | 19 |
| 1977 | 13 |
| 1978 | 3 |
| 1979 | 26 |
| 1980 | 6 |
| 1981 | 22 |
| 1982 | 21 |
| 1983 | 8 |
| 1984 | 16 |
| 1985 | 6 |
| 1986 | 6 |
| 1987 | 14 |
| 1988 | 10 |
| 1989 | 9 |
| 1990 | 16 |
| 1991 | 14 |
| 1992 | 11 |
| 1993 | 10 |
| 1994 | 12 |
| 1995 | 13 |
| 1996 | 10 |
| 1997 | 2 |
| 1998 | 15 |
| 1999 | 11 |
| 2000 | 10 |
| 2001 | 16 |
| 2002 | 14 |
All-Time Record Progression
14 new records| Date | Kind | Detail |
|---|---|---|
| 1923-02-18 | Record low minimum temperature | Record low minimum temperature -33.3 C (-27.9 F) |
| 1933-12-29 | Record low maximum temperature | Record low maximum temperature -23.3 C (-9.9 F) |
| 1934-09-19 | Record daily precipitation | Record daily precipitation 130.3 mm (5.1 in) |
| 1948-08-28 | Record high minimum temperature | Record high minimum temperature 24.4 C (75.9 F) |
| 1962-10-26 | Record snow depth | Record snow depth 10.2 cm (4.0 in) |
| 1977-02-18 | Record snow depth | Record snow depth 43.2 cm (17.0 in) |
| 1977-02-20 | Record snow depth | Record snow depth 55.9 cm (22.0 in) |
| 1987-01-23 | Record snow depth | Record snow depth 68.6 cm (27.0 in) |
| 1991-08-20 | Record daily precipitation | Record daily precipitation 133.6 mm (5.3 in) |
| 1993-07-07 | Record high minimum temperature | Record high minimum temperature 25.0 C (77.0 F) |
| 1995-12-22 | Record snow depth | Record snow depth 73.7 cm (29.0 in) |
| 1998-06-13 | Record daily precipitation | Record daily precipitation 151.6 mm (6.0 in) |
| 1999-09-16 | Record daily precipitation | Record daily precipitation 164.6 mm (6.5 in) |
| 2001-08-10 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
Wettest Day of Each Month
Sep: 164.6 mm (6.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 63.2 mm (2.5 in) | 15 January 1940 |
| Feb | 84.8 mm (3.3 in) | 26 February 2010 |
| Mar | 110.7 mm (4.4 in) | 1 March 1896 |
| Apr | 100.8 mm (4.0 in) | 16 April 1996 |
| May | 128.5 mm (5.1 in) | 17 May 1916 |
| Jun | 151.6 mm (6.0 in) | 13 June 1998 |
| Jul | 104.1 mm (4.1 in) | 14 July 1996 |
| Aug | 133.6 mm (5.3 in) | 20 August 1991 |
| Sep | 164.6 mm (6.5 in) | 16 September 1999 |
| Oct | 116.3 mm (4.6 in) | 9 October 2005 |
| Nov | 85.6 mm (3.4 in) | 1 November 1988 |
| Dec | 86.4 mm (3.4 in) | 17 December 1973 |
Period of Record Coverage
1893 to 2006| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 363 | 99% | Yes |
| 1894 | 364 | 100% | Yes |
| 1895 | 361 | 99% | Yes |
| 1896 | 365 | 100% | Yes |
| 1897 | 362 | 99% | Yes |
| 1898 | 360 | 99% | Yes |
| 1899 | 362 | 99% | Yes |
| 1900 | 363 | 99% | Yes |
| 1901 | 365 | 100% | Yes |
| 1902 | 363 | 99% | Yes |
| 1903 | 364 | 100% | Yes |
| 1904 | 364 | 99% | Yes |
| 1905 | 364 | 100% | Yes |
| 1906 | 363 | 99% | Yes |
| 1907 | 365 | 100% | Yes |
| 1908 | 362 | 99% | Yes |
| 1909 | 364 | 100% | Yes |
| 1910 | 364 | 100% | Yes |
| 1911 | 362 | 99% | Yes |
| 1912 | 364 | 99% | Yes |
| 1913 | 362 | 99% | Yes |
| 1914 | 363 | 99% | Yes |
| 1915 | 364 | 100% | Yes |
| 1916 | 363 | 99% | Yes |
| 1917 | 358 | 98% | Yes |
| 1918 | 360 | 99% | Yes |
| 1919 | 364 | 100% | Yes |
| 1920 | 362 | 99% | Yes |
| 1921 | 362 | 99% | Yes |
| 1922 | 361 | 99% | Yes |
| 1923 | 362 | 99% | Yes |
| 1924 | 363 | 99% | Yes |
| 1925 | 364 | 100% | Yes |
| 1926 | 364 | 100% | Yes |
| 1927 | 363 | 99% | Yes |
| 1928 | 364 | 99% | Yes |
| 1929 | 363 | 99% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 362 | 99% | Yes |
| 1932 | 363 | 99% | Yes |
| 1933 | 363 | 99% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 363 | 99% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 364 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 365 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 361 | 99% | Yes |
| 1950 | 362 | 99% | Yes |
| 1951 | 362 | 99% | Yes |
| 1952 | 364 | 99% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 363 | 99% | Yes |
| 1959 | 363 | 99% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 363 | 99% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 360 | 99% | Yes |
| 1983 | 357 | 98% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 363 | 99% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 362 | 99% | Yes |
| 1989 | 361 | 99% | Yes |
| 1990 | 345 | 95% | Yes |
| 1991 | 357 | 98% | Yes |
| 1992 | 361 | 99% | Yes |
| 1993 | 359 | 98% | Yes |
| 1994 | 362 | 99% | Yes |
| 1995 | 362 | 99% | Yes |
| 1996 | 362 | 99% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 364 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 303 | 83% | No |
| 2006 | 1 | 0% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 24 March 2010 | Lewiston, US | daily rain | 43.4 mm (1.7 in) | 5.3 mm (0.21 in) | 20 years | 20 of 100 (Routine) |
| 26 February 2010 | Lewiston, US | monthly rain | 84.8 mm (3.3 in) | 13.4 mm (0.5 in) | 45 years | 46 of 100 (Notable) |
| 10 December 2009 | Lewiston, US | daily rain | 38.9 mm (1.5 in) | 6.4 mm (0.25 in) | 72 years | 36 of 100 (Notable) |
| 28 November 2009 | Lewiston, US | daily rain | 31.8 mm (1.3 in) | 4.4 mm (0.17 in) | 50 years | 28 of 100 (Routine) |
| 15 November 2009 | Lewiston, US | daily rain | 71.6 mm (2.8 in) | 30.7 mm (1.2 in) | 14 years | 39 of 100 (Notable) |
| 4 October 2009 | Lewiston, US | daily rain | 27.7 mm (1.1 in) | 3.8 mm (0.15 in) | 82 years | 36 of 100 (Notable) |
| 22 August 2009 | Lewiston, US | daily rain | 25.7 mm (1.0 in) | 4.6 mm (0.18 in) | 4 years | 15 of 100 (Routine) |
| 25 July 2009 | Lewiston, US | daily rain | 39.4 mm (1.6 in) | 8.4 mm (0.33 in) | 36 years | 28 of 100 (Routine) |
| 3 July 2009 | Lewiston, US | daily rain | 53.6 mm (2.1 in) | 29.0 mm (1.1 in) | 100 years | 67 of 100 (Major) |
| 20 June 2009 | Lewiston, US | daily rain | 79.0 mm (3.1 in) | 40.6 mm (1.6 in) | 64 years | 66 of 100 (Major) |
| 23 February 2009 | Lewiston, US | daily snowfall (Tie) | 38.1 cm (15.0 in) | tie | 42 years | 5 of 100 (Routine) |
| 19 January 2009 | Lewiston, US | daily snowfall | 22.9 cm (9.0 in) | 2.1 cm (0.8 in) | 78 years | 36 of 100 (Notable) |
| 22 December 2008 | Lewiston, US | monthly snowfall | 36.6 cm (14.4 in) | 1.0 cm (0.4 in) | 38 years | 32 of 100 (Routine) |
| 26 November 2008 | Lewiston, US | daily rain | 81.5 mm (3.2 in) | 16.7 mm (0.7 in) | 58 years | 40 of 100 (Notable) |
| 27 September 2008 | Lewiston, US | daily rain | 42.9 mm (1.7 in) | 5.1 mm (0.20 in) | 69 years | 33 of 100 (Routine) |
| 7 September 2008 | Lewiston, US | daily rain | 94.5 mm (3.7 in) | 50.0 mm (2.0 in) | 88 years | 69 of 100 (Major) |
| 1 August 2008 | Lewiston, US | daily rain | 79.0 mm (3.1 in) | 52.6 mm (2.1 in) | 31 years | 59 of 100 (Notable) |
| 20 July 2008 | Lewiston, US | daily rain | 22.9 mm (0.9 in) | 3.1 mm (0.12 in) | 74 years | 20 of 100 (Routine) |
| 30 April 2008 | Lewiston, US | daily rain | 37.8 mm (1.5 in) | 0.5 mm (0.02 in) | 106 years | 40 of 100 (Notable) |
| 29 April 2008 | Lewiston, US | daily rain | 51.8 mm (2.0 in) | 15.5 mm (0.6 in) | 104 years | 53 of 100 (Notable) |
Climate Trend
108 complete years, 1893 to 2001| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1893 | 6.3 C | -1.17 C |
| 1894 | 7.0 C | -0.47 C |
| 1895 | 7.1 C | -0.36 C |
| 1896 | 7.3 C | -0.17 C |
| 1897 | 7.7 C | +0.23 C |
| 1898 | 8.1 C | +0.68 C |
| 1899 | 7.4 C | -0.09 C |
| 1900 | 7.6 C | +0.12 C |
| 1901 | 7.3 C | -0.19 C |
| 1902 | 7.3 C | -0.11 C |
| 1903 | 7.2 C | -0.25 C |
| 1904 | 5.6 C | -1.89 C |
| 1905 | 6.5 C | -1.00 C |
| 1906 | 7.2 C | -0.21 C |
| 1907 | 6.1 C | -1.35 C |
| 1908 | 7.6 C | +0.16 C |
| 1909 | 6.3 C | -1.17 C |
| 1910 | 7.8 C | +0.34 C |
| 1911 | 7.4 C | -0.02 C |
| 1912 | 6.5 C | -0.99 C |
| 1913 | 7.7 C | +0.26 C |
| 1914 | 6.2 C | -1.29 C |
| 1915 | 7.5 C | +0.07 C |
| 1916 | 6.6 C | -0.83 C |
| 1917 | 5.1 C | -2.32 C |
| 1918 | 6.0 C | -1.42 C |
| 1919 | 6.9 C | -0.59 C |
| 1920 | 6.5 C | -0.95 C |
| 1921 | 7.7 C | +0.25 C |
| 1922 | 6.6 C | -0.82 C |
| 1923 | 6.1 C | -1.39 C |
| 1924 | 6.4 C | -1.05 C |
| 1925 | 6.7 C | -0.80 C |
| 1926 | 5.6 C | -1.87 C |
| 1927 | 7.4 C | -0.10 C |
| 1928 | 7.0 C | -0.47 C |
| 1929 | 6.9 C | -0.53 C |
| 1930 | 7.3 C | -0.17 C |
| 1931 | 8.0 C | +0.57 C |
| 1932 | 7.7 C | +0.27 C |
| 1933 | 7.1 C | -0.35 C |
| 1934 | 6.5 C | -0.93 C |
| 1935 | 6.8 C | -0.68 C |
| 1936 | 7.1 C | -0.37 C |
| 1937 | 8.1 C | +0.69 C |
| 1938 | 8.1 C | +0.64 C |
| 1939 | 6.8 C | -0.64 C |
| 1940 | 6.7 C | -0.78 C |
| 1941 | 8.0 C | +0.59 C |
| 1942 | 7.9 C | +0.49 C |
| 1943 | 6.8 C | -0.63 C |
| 1944 | 7.5 C | +0.04 C |
| 1945 | 7.3 C | -0.16 C |
| 1946 | 7.6 C | +0.16 C |
| 1947 | 7.8 C | +0.36 C |
| 1948 | 7.3 C | -0.13 C |
| 1949 | 8.6 C | +1.18 C |
| 1950 | 7.2 C | -0.21 C |
| 1951 | 7.9 C | +0.41 C |
| 1952 | 8.3 C | +0.84 C |
| 1953 | 8.8 C | +1.36 C |
| 1954 | 7.4 C | -0.10 C |
| 1955 | 7.5 C | +0.04 C |
| 1956 | 6.8 C | -0.66 C |
| 1957 | 7.9 C | +0.46 C |
| 1958 | 6.8 C | -0.65 C |
| 1959 | 7.6 C | +0.14 C |
| 1960 | 7.7 C | +0.23 C |
| 1961 | 7.7 C | +0.24 C |
| 1962 | 7.0 C | -0.49 C |
| 1963 | 7.4 C | -0.04 C |
| 1964 | 7.6 C | +0.12 C |
| 1965 | 7.4 C | -0.07 C |
| 1966 | 7.8 C | +0.36 C |
| 1967 | 7.2 C | -0.28 C |
| 1968 | 7.4 C | -0.04 C |
| 1969 | 8.0 C | +0.54 C |
| 1970 | 7.8 C | +0.37 C |
| 1971 | 7.7 C | +0.25 C |
| 1972 | 6.8 C | -0.63 C |
| 1973 | 8.7 C | +1.23 C |
| 1974 | 7.7 C | +0.22 C |
| 1975 | 8.2 C | +0.72 C |
| 1976 | 7.3 C | -0.11 C |
| 1977 | 7.9 C | +0.40 C |
| 1978 | 7.3 C | -0.13 C |
| 1979 | 8.5 C | +1.02 C |
| 1980 | 7.7 C | +0.27 C |
| 1981 | 8.6 C | +1.12 C |
| 1982 | 7.6 C | +0.13 C |
| 1983 | 8.6 C | +1.18 C |
| 1984 | 8.3 C | +0.89 C |
| 1985 | 7.8 C | +0.37 C |
| 1986 | 7.8 C | +0.37 C |
| 1987 | 8.1 C | +0.68 C |
| 1988 | 8.3 C | +0.80 C |
| 1989 | 7.5 C | +0.03 C |
| 1990 | 8.9 C | +1.42 C |
| 1991 | 9.0 C | +1.55 C |
| 1992 | 7.9 C | +0.45 C |
| 1993 | 8.1 C | +0.61 C |
| 1994 | 8.0 C | +0.59 C |
| 1995 | 8.5 C | +1.03 C |
| 1996 | 8.2 C | +0.73 C |
| 1998 | 9.6 C | +2.17 C |
| 1999 | 8.8 C | +1.33 C |
| 2000 | 7.3 C | -0.19 C |
| 2001 | 8.1 C | +0.69 C |
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1893 to 2001. In Fahrenheit: 0.3 F (0.2 to 0.3) 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 | 0.1 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.3) per decade | 1893 to 2001 | 108 | Rise |
| Mean daily maximum | 0.1 C (0.1 to 0.1) per decade | 0.2 F (0.1 to 0.2) per decade | 1893 to 2001 | 108 | Rise |
| Mean daily minimum | 0.2 C (0.2 to 0.2) per decade | 0.4 F (0.3 to 0.4) per decade | 1893 to 2001 | 108 | Rise |
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 2010| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.9 C (102.0 F) | 1911 | 35.0 C (95.0 F) | 111 |
| Coldest night (TNn) | -33.3 C (-27.9 F) | 1923 | -25.0 C (-13.0 F) | 111 |
| Wettest day (Rx1day) | 164.6 mm (6.5 in) | 1999 | 61.0 mm (2.4 in) | 118 |
| Wettest five days (Rx5day) | 223.8 mm (8.8 in) | 1998 | 93.6 mm (3.7 in) | 118 |
| Longest dry spell (CDD) | 29 days | 2001 | 17 days | 118 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 37.2 C (99.0 F) |
| 1894 | 38.3 C (100.9 F) |
| 1895 | 35.6 C (96.1 F) |
| 1896 | 35.6 C (96.1 F) |
| 1897 | 36.7 C (98.1 F) |
| 1898 | 36.7 C (98.1 F) |
| 1899 | 37.2 C (99.0 F) |
| 1900 | 36.7 C (98.1 F) |
| 1901 | 37.8 C (100.0 F) |
| 1902 | 33.3 C (91.9 F) |
| 1903 | 32.2 C (90.0 F) |
| 1904 | 33.3 C (91.9 F) |
| 1905 | 33.3 C (91.9 F) |
| 1906 | 36.1 C (97.0 F) |
| 1907 | 36.1 C (97.0 F) |
| 1908 | 35.6 C (96.1 F) |
| 1909 | 34.4 C (93.9 F) |
| 1910 | 34.4 C (93.9 F) |
| 1911 | 38.9 C (102.0 F) |
| 1912 | 35.6 C (96.1 F) |
| 1913 | 37.8 C (100.0 F) |
| 1914 | 34.4 C (93.9 F) |
| 1915 | 31.1 C (88.0 F) |
| 1916 | 33.3 C (91.9 F) |
| 1917 | 34.4 C (93.9 F) |
| 1918 | 33.9 C (93.0 F) |
| 1919 | 36.1 C (97.0 F) |
| 1920 | 32.8 C (91.0 F) |
| 1921 | 34.4 C (93.9 F) |
| 1922 | 32.8 C (91.0 F) |
| 1923 | 35.0 C (95.0 F) |
| 1924 | 35.0 C (95.0 F) |
| 1925 | 33.9 C (93.0 F) |
| 1926 | 36.7 C (98.1 F) |
| 1927 | 33.3 C (91.9 F) |
| 1928 | 35.0 C (95.0 F) |
| 1929 | 35.0 C (95.0 F) |
| 1930 | 33.3 C (91.9 F) |
| 1931 | 36.7 C (98.1 F) |
| 1932 | 33.9 C (93.0 F) |
| 1933 | 33.3 C (91.9 F) |
| 1934 | 34.4 C (93.9 F) |
| 1935 | 34.4 C (93.9 F) |
| 1936 | 34.4 C (93.9 F) |
| 1937 | 36.1 C (97.0 F) |
| 1938 | 35.0 C (95.0 F) |
| 1939 | 35.6 C (96.1 F) |
| 1940 | 33.9 C (93.0 F) |
| 1941 | 36.7 C (98.1 F) |
| 1942 | 33.9 C (93.0 F) |
| 1943 | 33.3 C (91.9 F) |
| 1944 | 37.2 C (99.0 F) |
| 1945 | 33.9 C (93.0 F) |
| 1946 | 34.4 C (93.9 F) |
| 1947 | 36.1 C (97.0 F) |
| 1948 | 35.6 C (96.1 F) |
| 1949 | 35.0 C (95.0 F) |
| 1950 | 32.8 C (91.0 F) |
| 1951 | 32.2 C (90.0 F) |
| 1952 | 36.1 C (97.0 F) |
| 1953 | 34.4 C (93.9 F) |
| 1954 | 33.9 C (93.0 F) |
| 1955 | 34.4 C (93.9 F) |
| 1956 | 34.4 C (93.9 F) |
| 1957 | 33.3 C (91.9 F) |
| 1958 | 32.2 C (90.0 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 35.0 C (95.0 F) |
| 1961 | 33.9 C (93.0 F) |
| 1962 | 32.8 C (91.0 F) |
| 1963 | 36.1 C (97.0 F) |
| 1964 | 34.4 C (93.9 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 34.4 C (93.9 F) |
| 1967 | 32.8 C (91.0 F) |
| 1968 | 33.3 C (91.9 F) |
| 1969 | 33.9 C (93.0 F) |
| 1970 | 34.4 C (93.9 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 32.2 C (90.0 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 32.2 C (90.0 F) |
| 1975 | 37.8 C (100.0 F) |
| 1976 | 35.0 C (95.0 F) |
| 1977 | 35.6 C (96.1 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 35.6 C (96.1 F) |
| 1980 | 35.0 C (95.0 F) |
| 1981 | 35.6 C (96.1 F) |
| 1982 | 36.1 C (97.0 F) |
| 1983 | 33.9 C (93.0 F) |
| 1984 | 35.0 C (95.0 F) |
| 1985 | 33.3 C (91.9 F) |
| 1986 | 33.3 C (91.9 F) |
| 1987 | 35.6 C (96.1 F) |
| 1988 | 36.1 C (97.0 F) |
| 1989 | 35.6 C (96.1 F) |
| 1990 | 33.9 C (93.0 F) |
| 1991 | 37.2 C (99.0 F) |
| 1992 | 35.6 C (96.1 F) |
| 1993 | 35.6 C (96.1 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 37.8 C (100.0 F) |
| 1996 | 32.8 C (91.0 F) |
| 1997 | 33.9 C (93.0 F) |
| 1998 | 35.0 C (95.0 F) |
| 1999 | 35.0 C (95.0 F) |
| 2000 | 32.8 C (91.0 F) |
| 2001 | 37.2 C (99.0 F) |
| 2002 | 37.8 C (100.0 F) |
| 2003 | n/a |
| 2004 | n/a |
| 2005 | n/a |
| 2006 | 2.2 C (36.0 F) |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -29.4 C (-20.9 F) |
| 1894 | -28.9 C (-20.0 F) |
| 1895 | -28.9 C (-20.0 F) |
| 1896 | -25.6 C (-14.1 F) |
| 1897 | -23.3 C (-9.9 F) |
| 1898 | -31.1 C (-24.0 F) |
| 1899 | -28.3 C (-18.9 F) |
| 1900 | -23.3 C (-9.9 F) |
| 1901 | -25.6 C (-14.1 F) |
| 1902 | -25.6 C (-14.1 F) |
| 1903 | -29.4 C (-20.9 F) |
| 1904 | -32.2 C (-26.0 F) |
| 1905 | -30.0 C (-22.0 F) |
| 1906 | -23.9 C (-11.0 F) |
| 1907 | -31.1 C (-24.0 F) |
| 1908 | -25.6 C (-14.1 F) |
| 1909 | -28.3 C (-18.9 F) |
| 1910 | -25.0 C (-13.0 F) |
| 1911 | -25.0 C (-13.0 F) |
| 1912 | -30.0 C (-22.0 F) |
| 1913 | -21.1 C (-6.0 F) |
| 1914 | -28.9 C (-20.0 F) |
| 1915 | -25.6 C (-14.1 F) |
| 1916 | -25.0 C (-13.0 F) |
| 1917 | -32.8 C (-27.0 F) |
| 1918 | -29.4 C (-20.9 F) |
| 1919 | -24.4 C (-11.9 F) |
| 1920 | -32.2 C (-26.0 F) |
| 1921 | -20.6 C (-5.1 F) |
| 1922 | -30.0 C (-22.0 F) |
| 1923 | -33.3 C (-27.9 F) |
| 1924 | -28.9 C (-20.0 F) |
| 1925 | -33.3 C (-27.9 F) |
| 1926 | -23.9 C (-11.0 F) |
| 1927 | -21.1 C (-6.0 F) |
| 1928 | -24.4 C (-11.9 F) |
| 1929 | -26.1 C (-15.0 F) |
| 1930 | -25.6 C (-14.1 F) |
| 1931 | -28.3 C (-18.9 F) |
| 1932 | -20.0 C (-4.0 F) |
| 1933 | -30.0 C (-22.0 F) |
| 1934 | -32.2 C (-26.0 F) |
| 1935 | -31.7 C (-25.1 F) |
| 1936 | -27.8 C (-18.0 F) |
| 1937 | -23.3 C (-9.9 F) |
| 1938 | -22.8 C (-9.0 F) |
| 1939 | -25.6 C (-14.1 F) |
| 1940 | -25.0 C (-13.0 F) |
| 1941 | -20.0 C (-4.0 F) |
| 1942 | -25.6 C (-14.1 F) |
| 1943 | -29.4 C (-20.9 F) |
| 1944 | -24.4 C (-11.9 F) |
| 1945 | -25.6 C (-14.1 F) |
| 1946 | -23.9 C (-11.0 F) |
| 1947 | -20.6 C (-5.1 F) |
| 1948 | -30.0 C (-22.0 F) |
| 1949 | -21.7 C (-7.1 F) |
| 1950 | -26.7 C (-16.1 F) |
| 1951 | -24.4 C (-11.9 F) |
| 1952 | -21.7 C (-7.1 F) |
| 1953 | -16.1 C (3.0 F) |
| 1954 | -23.3 C (-9.9 F) |
| 1955 | -25.6 C (-14.1 F) |
| 1956 | -22.2 C (-8.0 F) |
| 1957 | -32.2 C (-26.0 F) |
| 1958 | -23.3 C (-9.9 F) |
| 1959 | -26.7 C (-16.1 F) |
| 1960 | -22.8 C (-9.0 F) |
| 1961 | -28.3 C (-18.9 F) |
| 1962 | -32.2 C (-26.0 F) |
| 1963 | -26.1 C (-15.0 F) |
| 1964 | -22.2 C (-8.0 F) |
| 1965 | -26.1 C (-15.0 F) |
| 1966 | -22.2 C (-8.0 F) |
| 1967 | -24.4 C (-11.9 F) |
| 1968 | -25.0 C (-13.0 F) |
| 1969 | -23.3 C (-9.9 F) |
| 1970 | -21.7 C (-7.1 F) |
| 1971 | -28.9 C (-20.0 F) |
| 1972 | -24.4 C (-11.9 F) |
| 1973 | -24.4 C (-11.9 F) |
| 1974 | -26.1 C (-15.0 F) |
| 1975 | -24.4 C (-11.9 F) |
| 1976 | -30.0 C (-22.0 F) |
| 1977 | -24.4 C (-11.9 F) |
| 1978 | -22.8 C (-9.0 F) |
| 1979 | -24.4 C (-11.9 F) |
| 1980 | -27.2 C (-17.0 F) |
| 1981 | -30.6 C (-23.1 F) |
| 1982 | -27.8 C (-18.0 F) |
| 1983 | -21.7 C (-7.1 F) |
| 1984 | -27.2 C (-17.0 F) |
| 1985 | -23.3 C (-9.9 F) |
| 1986 | -22.2 C (-8.0 F) |
| 1987 | -22.8 C (-9.0 F) |
| 1988 | -26.1 C (-15.0 F) |
| 1989 | -22.2 C (-8.0 F) |
| 1990 | -21.1 C (-6.0 F) |
| 1991 | -20.6 C (-5.1 F) |
| 1992 | -22.8 C (-9.0 F) |
| 1993 | -26.1 C (-15.0 F) |
| 1994 | -33.3 C (-27.9 F) |
| 1995 | -22.8 C (-9.0 F) |
| 1996 | -23.9 C (-11.0 F) |
| 1997 | -20.6 C (-5.1 F) |
| 1998 | -18.9 C (-2.0 F) |
| 1999 | -25.6 C (-14.1 F) |
| 2000 | -23.3 C (-9.9 F) |
| 2001 | -22.2 C (-8.0 F) |
| 2002 | -21.1 C (-6.0 F) |
| 2003 | n/a |
| 2004 | n/a |
| 2005 | n/a |
| 2006 | -11.1 C (12.0 F) |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 84.3 mm (3.3 in) |
| 1894 | 61.0 mm (2.4 in) |
| 1895 | 44.7 mm (1.8 in) |
| 1896 | 110.7 mm (4.4 in) |
| 1897 | 44.2 mm (1.7 in) |
| 1898 | 56.4 mm (2.2 in) |
| 1899 | 33.0 mm (1.3 in) |
| 1900 | 67.3 mm (2.6 in) |
| 1901 | 66.8 mm (2.6 in) |
| 1902 | 73.2 mm (2.9 in) |
| 1903 | 39.9 mm (1.6 in) |
| 1904 | 65.3 mm (2.6 in) |
| 1905 | 56.6 mm (2.2 in) |
| 1906 | 47.0 mm (1.9 in) |
| 1907 | 40.9 mm (1.6 in) |
| 1908 | 65.3 mm (2.6 in) |
| 1909 | 56.9 mm (2.2 in) |
| 1910 | 84.1 mm (3.3 in) |
| 1911 | 51.6 mm (2.0 in) |
| 1912 | 52.8 mm (2.1 in) |
| 1913 | 54.6 mm (2.1 in) |
| 1914 | 49.8 mm (2.0 in) |
| 1915 | 65.3 mm (2.6 in) |
| 1916 | 128.5 mm (5.1 in) |
| 1917 | 100.8 mm (4.0 in) |
| 1918 | 57.9 mm (2.3 in) |
| 1919 | 55.1 mm (2.2 in) |
| 1920 | 102.6 mm (4.0 in) |
| 1921 | 31.8 mm (1.3 in) |
| 1922 | 70.1 mm (2.8 in) |
| 1923 | 36.8 mm (1.4 in) |
| 1924 | 66.8 mm (2.6 in) |
| 1925 | 45.7 mm (1.8 in) |
| 1926 | 41.4 mm (1.6 in) |
| 1927 | 45.0 mm (1.8 in) |
| 1928 | 51.8 mm (2.0 in) |
| 1929 | 35.3 mm (1.4 in) |
| 1930 | 49.0 mm (1.9 in) |
| 1931 | 56.6 mm (2.2 in) |
| 1932 | 110.5 mm (4.4 in) |
| 1933 | 60.2 mm (2.4 in) |
| 1934 | 130.3 mm (5.1 in) |
| 1935 | 57.7 mm (2.3 in) |
| 1936 | 78.0 mm (3.1 in) |
| 1937 | 87.1 mm (3.4 in) |
| 1938 | 51.8 mm (2.0 in) |
| 1939 | 59.2 mm (2.3 in) |
| 1940 | 63.2 mm (2.5 in) |
| 1941 | 39.4 mm (1.6 in) |
| 1942 | 71.4 mm (2.8 in) |
| 1943 | 60.7 mm (2.4 in) |
| 1944 | 96.5 mm (3.8 in) |
| 1945 | 74.9 mm (2.9 in) |
| 1946 | 61.0 mm (2.4 in) |
| 1947 | 48.8 mm (1.9 in) |
| 1948 | 49.0 mm (1.9 in) |
| 1949 | 47.5 mm (1.9 in) |
| 1950 | 64.8 mm (2.6 in) |
| 1951 | 65.3 mm (2.6 in) |
| 1952 | 68.3 mm (2.7 in) |
| 1953 | 54.1 mm (2.1 in) |
| 1954 | 120.7 mm (4.8 in) |
| 1955 | 61.5 mm (2.4 in) |
| 1956 | 41.7 mm (1.6 in) |
| 1957 | 46.2 mm (1.8 in) |
| 1958 | 41.9 mm (1.6 in) |
| 1959 | 53.8 mm (2.1 in) |
| 1960 | 74.9 mm (2.9 in) |
| 1961 | 60.5 mm (2.4 in) |
| 1962 | 64.0 mm (2.5 in) |
| 1963 | 57.2 mm (2.3 in) |
| 1964 | 59.7 mm (2.4 in) |
| 1965 | 71.4 mm (2.8 in) |
| 1966 | 78.2 mm (3.1 in) |
| 1967 | 56.4 mm (2.2 in) |
| 1968 | 46.0 mm (1.8 in) |
| 1969 | 84.1 mm (3.3 in) |
| 1970 | 65.8 mm (2.6 in) |
| 1971 | 52.3 mm (2.1 in) |
| 1972 | 49.0 mm (1.9 in) |
| 1973 | 86.4 mm (3.4 in) |
| 1974 | 55.1 mm (2.2 in) |
| 1975 | 49.3 mm (1.9 in) |
| 1976 | 57.9 mm (2.3 in) |
| 1977 | 106.7 mm (4.2 in) |
| 1978 | 59.9 mm (2.4 in) |
| 1979 | 74.2 mm (2.9 in) |
| 1980 | 91.4 mm (3.6 in) |
| 1981 | 80.0 mm (3.1 in) |
| 1982 | 71.1 mm (2.8 in) |
| 1983 | 90.9 mm (3.6 in) |
| 1984 | 71.4 mm (2.8 in) |
| 1985 | 58.7 mm (2.3 in) |
| 1986 | 59.2 mm (2.3 in) |
| 1987 | 84.3 mm (3.3 in) |
| 1988 | 85.6 mm (3.4 in) |
| 1989 | 93.7 mm (3.7 in) |
| 1990 | 57.4 mm (2.3 in) |
| 1991 | 133.6 mm (5.3 in) |
| 1992 | 72.4 mm (2.9 in) |
| 1993 | 47.2 mm (1.9 in) |
| 1994 | 95.0 mm (3.7 in) |
| 1995 | 51.3 mm (2.0 in) |
| 1996 | 104.1 mm (4.1 in) |
| 1997 | 49.0 mm (1.9 in) |
| 1998 | 151.6 mm (6.0 in) |
| 1999 | 164.6 mm (6.5 in) |
| 2000 | 70.1 mm (2.8 in) |
| 2001 | 66.0 mm (2.6 in) |
| 2002 | 50.8 mm (2.0 in) |
| 2003 | 38.6 mm (1.5 in) |
| 2004 | 40.1 mm (1.6 in) |
| 2005 | 116.3 mm (4.6 in) |
| 2006 | 74.9 mm (2.9 in) |
| 2007 | 89.9 mm (3.5 in) |
| 2008 | 94.5 mm (3.7 in) |
| 2009 | 79.0 mm (3.1 in) |
| 2010 | 84.8 mm (3.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 132.9 mm (5.2 in) |
| 1894 | 82.8 mm (3.3 in) |
| 1895 | 84.4 mm (3.3 in) |
| 1896 | 166.1 mm (6.5 in) |
| 1897 | 68.1 mm (2.7 in) |
| 1898 | 85.1 mm (3.4 in) |
| 1899 | 55.3 mm (2.2 in) |
| 1900 | 125.0 mm (4.9 in) |
| 1901 | 131.6 mm (5.2 in) |
| 1902 | 81.3 mm (3.2 in) |
| 1903 | 66.2 mm (2.6 in) |
| 1904 | 59.2 mm (2.3 in) |
| 1905 | 83.8 mm (3.3 in) |
| 1906 | 91.0 mm (3.6 in) |
| 1907 | 74.9 mm (2.9 in) |
| 1908 | 92.3 mm (3.6 in) |
| 1909 | 94.8 mm (3.7 in) |
| 1910 | 93.0 mm (3.7 in) |
| 1911 | 77.8 mm (3.1 in) |
| 1912 | 87.4 mm (3.4 in) |
| 1913 | 80.7 mm (3.2 in) |
| 1914 | 84.1 mm (3.3 in) |
| 1915 | 113.0 mm (4.4 in) |
| 1916 | 132.6 mm (5.2 in) |
| 1917 | 118.0 mm (4.6 in) |
| 1918 | 90.2 mm (3.6 in) |
| 1919 | 81.3 mm (3.2 in) |
| 1920 | 139.1 mm (5.5 in) |
| 1921 | 49.1 mm (1.9 in) |
| 1922 | 137.6 mm (5.4 in) |
| 1923 | 103.6 mm (4.1 in) |
| 1924 | 78.5 mm (3.1 in) |
| 1925 | 95.5 mm (3.8 in) |
| 1926 | 61.8 mm (2.4 in) |
| 1927 | 61.5 mm (2.4 in) |
| 1928 | 102.6 mm (4.0 in) |
| 1929 | 71.4 mm (2.8 in) |
| 1930 | 72.4 mm (2.9 in) |
| 1931 | 81.5 mm (3.2 in) |
| 1932 | 139.2 mm (5.5 in) |
| 1933 | 102.4 mm (4.0 in) |
| 1934 | 160.1 mm (6.3 in) |
| 1935 | 81.5 mm (3.2 in) |
| 1936 | 109.5 mm (4.3 in) |
| 1937 | 117.8 mm (4.6 in) |
| 1938 | 73.4 mm (2.9 in) |
| 1939 | 68.9 mm (2.7 in) |
| 1940 | 106.2 mm (4.2 in) |
| 1941 | 48.8 mm (1.9 in) |
| 1942 | 140.2 mm (5.5 in) |
| 1943 | 125.5 mm (4.9 in) |
| 1944 | 121.9 mm (4.8 in) |
| 1945 | 91.9 mm (3.6 in) |
| 1946 | 89.4 mm (3.5 in) |
| 1947 | 76.7 mm (3.0 in) |
| 1948 | 93.7 mm (3.7 in) |
| 1949 | 101.3 mm (4.0 in) |
| 1950 | 82.8 mm (3.3 in) |
| 1951 | 129.3 mm (5.1 in) |
| 1952 | 91.4 mm (3.6 in) |
| 1953 | 112.6 mm (4.4 in) |
| 1954 | 203.0 mm (8.0 in) |
| 1955 | 107.8 mm (4.2 in) |
| 1956 | 98.3 mm (3.9 in) |
| 1957 | 72.4 mm (2.9 in) |
| 1958 | 75.8 mm (3.0 in) |
| 1959 | 81.5 mm (3.2 in) |
| 1960 | 120.8 mm (4.8 in) |
| 1961 | 84.6 mm (3.3 in) |
| 1962 | 116.3 mm (4.6 in) |
| 1963 | 137.7 mm (5.4 in) |
| 1964 | 81.5 mm (3.2 in) |
| 1965 | 77.7 mm (3.1 in) |
| 1966 | 135.9 mm (5.4 in) |
| 1967 | 98.0 mm (3.9 in) |
| 1968 | 93.7 mm (3.7 in) |
| 1969 | 136.7 mm (5.4 in) |
| 1970 | 69.8 mm (2.7 in) |
| 1971 | 70.9 mm (2.8 in) |
| 1972 | 67.5 mm (2.7 in) |
| 1973 | 148.8 mm (5.9 in) |
| 1974 | 84.6 mm (3.3 in) |
| 1975 | 66.4 mm (2.6 in) |
| 1976 | 75.2 mm (3.0 in) |
| 1977 | 128.3 mm (5.1 in) |
| 1978 | 74.3 mm (2.9 in) |
| 1979 | 101.4 mm (4.0 in) |
| 1980 | 94.0 mm (3.7 in) |
| 1981 | 134.0 mm (5.3 in) |
| 1982 | 95.8 mm (3.8 in) |
| 1983 | 135.8 mm (5.3 in) |
| 1984 | 168.5 mm (6.6 in) |
| 1985 | 73.4 mm (2.9 in) |
| 1986 | 93.5 mm (3.7 in) |
| 1987 | 108.7 mm (4.3 in) |
| 1988 | 105.6 mm (4.2 in) |
| 1989 | 123.6 mm (4.9 in) |
| 1990 | 85.6 mm (3.4 in) |
| 1991 | 166.6 mm (6.6 in) |
| 1992 | 91.7 mm (3.6 in) |
| 1993 | 64.8 mm (2.6 in) |
| 1994 | 112.8 mm (4.4 in) |
| 1995 | 76.9 mm (3.0 in) |
| 1996 | 112.0 mm (4.4 in) |
| 1997 | 71.1 mm (2.8 in) |
| 1998 | 223.8 mm (8.8 in) |
| 1999 | 187.7 mm (7.4 in) |
| 2000 | 99.8 mm (3.9 in) |
| 2001 | 83.3 mm (3.3 in) |
| 2002 | 84.8 mm (3.3 in) |
| 2003 | 66.1 mm (2.6 in) |
| 2004 | 65.5 mm (2.6 in) |
| 2005 | 170.2 mm (6.7 in) |
| 2006 | 111.1 mm (4.4 in) |
| 2007 | 170.1 mm (6.7 in) |
| 2008 | 122.9 mm (4.8 in) |
| 2009 | 99.1 mm (3.9 in) |
| 2010 | 149.1 mm (5.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 18 days |
| 1894 | 12 days |
| 1895 | 21 days |
| 1896 | 17 days |
| 1897 | 15 days |
| 1898 | 17 days |
| 1899 | 15 days |
| 1900 | 25 days |
| 1901 | 18 days |
| 1902 | 13 days |
| 1903 | 16 days |
| 1904 | 17 days |
| 1905 | 22 days |
| 1906 | 11 days |
| 1907 | 15 days |
| 1908 | 25 days |
| 1909 | 11 days |
| 1910 | 12 days |
| 1911 | 21 days |
| 1912 | 26 days |
| 1913 | 16 days |
| 1914 | 19 days |
| 1915 | 22 days |
| 1916 | 12 days |
| 1917 | 21 days |
| 1918 | 24 days |
| 1919 | 17 days |
| 1920 | 13 days |
| 1921 | 18 days |
| 1922 | 14 days |
| 1923 | 16 days |
| 1924 | 27 days |
| 1925 | 14 days |
| 1926 | 16 days |
| 1927 | 16 days |
| 1928 | 19 days |
| 1929 | 12 days |
| 1930 | 17 days |
| 1931 | 18 days |
| 1932 | 18 days |
| 1933 | 14 days |
| 1934 | 24 days |
| 1935 | 24 days |
| 1936 | 12 days |
| 1937 | 19 days |
| 1938 | 22 days |
| 1939 | 25 days |
| 1940 | 17 days |
| 1941 | 19 days |
| 1942 | 19 days |
| 1943 | 16 days |
| 1944 | 17 days |
| 1945 | 17 days |
| 1946 | 18 days |
| 1947 | 28 days |
| 1948 | 16 days |
| 1949 | 14 days |
| 1950 | 25 days |
| 1951 | 14 days |
| 1952 | 21 days |
| 1953 | 15 days |
| 1954 | 15 days |
| 1955 | 19 days |
| 1956 | 16 days |
| 1957 | 16 days |
| 1958 | 14 days |
| 1959 | 17 days |
| 1960 | 13 days |
| 1961 | 17 days |
| 1962 | 12 days |
| 1963 | 17 days |
| 1964 | 15 days |
| 1965 | 21 days |
| 1966 | 13 days |
| 1967 | 13 days |
| 1968 | 18 days |
| 1969 | 13 days |
| 1970 | 19 days |
| 1971 | 14 days |
| 1972 | 9 days |
| 1973 | 15 days |
| 1974 | 14 days |
| 1975 | 24 days |
| 1976 | 20 days |
| 1977 | 19 days |
| 1978 | 23 days |
| 1979 | 15 days |
| 1980 | 23 days |
| 1981 | 23 days |
| 1982 | 18 days |
| 1983 | 16 days |
| 1984 | 18 days |
| 1985 | 15 days |
| 1986 | 11 days |
| 1987 | 20 days |
| 1988 | 14 days |
| 1989 | 16 days |
| 1990 | 15 days |
| 1991 | 20 days |
| 1992 | 21 days |
| 1993 | 12 days |
| 1994 | 10 days |
| 1995 | 14 days |
| 1996 | 21 days |
| 1997 | 18 days |
| 1998 | 18 days |
| 1999 | 15 days |
| 2000 | 12 days |
| 2001 | 29 days |
| 2002 | 19 days |
| 2003 | 19 days |
| 2004 | 22 days |
| 2005 | 15 days |
| 2006 | 17 days |
| 2007 | 28 days |
| 2008 | 17 days |
| 2009 | 15 days |
| 2010 | 29 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 Lewiston falls on 29 April and the median first autumn frost on 13 October, which leaves a median of 169 days between them.
In 1971 to 2001 the median growing season was 169 days. That is 4 days more than in 1893 to 1922.
Fitted over all years, the growing season changes by +0.8 days per decade at this station.
| Measure | Median, all years | Earliest period (1893 to 1922) | Recent period (1971 to 2001) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 29 April | 30 April | 27 April | 3 days earlier | -0.6 days per decade |
| First autumn frost | 13 October | 12 October | 12 October | no change | +0.2 days per decade |
| Growing days | 169 days | 165 days | 169 days | 4 days more | +0.8 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
113 years, 1893 to 2009A day with at least 62.2 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 161.6 mm (6.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 62.2 mm (2.4 in) | |
| 5 years | 83.6 mm (3.3 in) | |
| 10 years | 99.6 mm (3.9 in) | |
| 25 years | 122.3 mm (4.8 in) | |
| 50 years | 141.1 mm (5.6 in) | |
| 100 years | 161.6 mm (6.4 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 113 years of values from 1893 to 2009.
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: 164.6 mm (6.5 in) in 1999; 151.6 mm (6.0 in) in 1998; 133.6 mm (5.3 in) in 1991.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Lewiston, at 1986. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1986 ran 0.3 C (0.5 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1986 | -0.3 | -0.5 | likely | 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.
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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).