Watertown Wwtp Weather Records (USC00478919)
Record envelope, standing records and threshold days for Watertown Wwtp (USC00478919), Wisconsin, United States, with 134 years of record.
Key Facts for Watertown Wwtp
- Watertown Wwtp (USC00478919) is a weather station in Wisconsin, United States at 43.17 latitude and -88.74 longitude, 252 m (825 ft) above sea level.
- The station reports from 1893 to 2026, 134 years of record.
- 1,464 records set at Watertown Wwtp still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Watertown Wwtp tied a daily record high maximum temperature of 28.3 C (82.9 F) on 11 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Wisconsin, United States, 43.17 latitude, -88.74 longitude.
- Elevation: 252 m (825 ft).
- Period of record: 1893 to 2026, 134 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
6 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 15.6 C (60.1 F) | -35.0 C (-31.0 F) | 13.3 C (55.9 F) | -27.8 C (-18.0 F) |
| Feb | 21.1 C (70.0 F) | -36.1 C (-33.0 F) | 16.7 C (62.1 F) | -20.0 C (-4.0 F) |
| Mar | 27.8 C (82.0 F) | -30.6 C (-23.1 F) | 24.4 C (75.9 F) | -13.9 C (7.0 F) |
| Apr | 32.8 C (91.0 F) | -12.2 C (10.0 F) | 26.1 C (79.0 F) | -6.1 C (21.0 F) |
| May | 36.1 C (97.0 F) | -5.6 C (21.9 F) | 30.6 C (87.1 F) | -0.6 C (30.9 F) |
| Jun | 38.3 C (100.9 F) | -1.1 C (30.0 F) | 32.8 C (91.0 F) | 7.2 C (45.0 F) |
| Jul | 40.0 C (104.0 F) | 5.0 C (41.0 F) | 36.1 C (97.0 F) | 10.0 C (50.0 F) |
| Aug | 39.4 C (102.9 F) | 1.1 C (34.0 F) | 28.9 C (84.0 F) | 8.9 C (48.0 F) |
| Sep | 37.8 C (100.0 F) | -6.7 C (19.9 F) | 31.1 C (88.0 F) | 6.1 C (43.0 F) |
| Oct | 31.7 C (89.1 F) | -13.9 C (7.0 F) | 28.3 C (82.9 F) | 4.4 C (39.9 F) |
| Nov | 24.4 C (75.9 F) | -24.4 C (-11.9 F) | n/a | n/a |
| Dec | 18.9 C (66.0 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 | 44 |
| 1894 | 27 |
| 1895 | 33 |
| 1896 | 18 |
| 1897 | 20 |
| 1898 | 4 |
| 1899 | 16 |
| 1900 | 6 |
| 1901 | 18 |
| 1902 | 11 |
| 1903 | 12 |
| 1904 | 13 |
| 1905 | 14 |
| 1906 | 15 |
| 1907 | 10 |
| 1908 | 5 |
| 1909 | 20 |
| 1910 | 12 |
| 1911 | 12 |
| 1912 | 16 |
| 1913 | 9 |
| 1914 | 9 |
| 1915 | 13 |
| 1916 | 11 |
| 1917 | 22 |
| 1918 | 8 |
| 1919 | 5 |
| 1920 | 7 |
| 1921 | 9 |
| 1922 | 7 |
| 1923 | 18 |
| 1924 | 8 |
| 1925 | 16 |
| 1926 | 8 |
| 1927 | 12 |
| 1928 | 14 |
| 1929 | 13 |
| 1930 | 18 |
| 1931 | 23 |
| 1932 | 11 |
| 1933 | 9 |
| 1934 | 15 |
| 1935 | 7 |
| 1936 | 11 |
| 1937 | 16 |
| 1938 | 13 |
| 1939 | 16 |
| 1940 | 8 |
| 1941 | 16 |
| 1942 | 8 |
| 1943 | 3 |
| 1944 | 15 |
| 1945 | 11 |
| 1946 | 15 |
| 1947 | 21 |
| 1948 | 8 |
| 1949 | 11 |
| 1950 | 12 |
| 1951 | 11 |
| 1952 | 9 |
| 1953 | 13 |
| 1954 | 6 |
| 1955 | 3 |
| 1956 | 9 |
| 1957 | 8 |
| 1958 | 4 |
| 1959 | 14 |
| 1960 | 8 |
| 1961 | 2 |
| 1962 | 9 |
| 1963 | 16 |
| 1964 | 9 |
| 1965 | 17 |
| 1966 | 9 |
| 1967 | 10 |
| 1968 | 12 |
| 1969 | 7 |
| 1970 | 6 |
| 1971 | 12 |
| 1972 | 8 |
| 1973 | 6 |
| 1974 | 12 |
| 1975 | 8 |
| 1976 | 7 |
| 1977 | 17 |
| 1978 | 3 |
| 1979 | 10 |
| 1980 | 5 |
| 1981 | 7 |
| 1982 | 12 |
| 1983 | 18 |
| 1984 | 6 |
| 1985 | 11 |
| 1986 | 11 |
| 1987 | 6 |
| 1988 | 16 |
| 1989 | 10 |
| 1990 | 11 |
| 1991 | 17 |
| 1992 | 11 |
| 1993 | 5 |
| 1994 | 15 |
| 1995 | 9 |
| 1996 | 10 |
| 1997 | 5 |
| 1998 | 14 |
| 1999 | 7 |
| 2000 | 12 |
| 2001 | 7 |
| 2002 | 13 |
| 2003 | 5 |
| 2004 | 5 |
| 2005 | 5 |
| 2006 | 10 |
| 2007 | 9 |
| 2008 | 6 |
| 2009 | 7 |
| 2010 | 5 |
| 2011 | 4 |
| 2012 | 20 |
| 2013 | 4 |
| 2014 | 10 |
| 2015 | 9 |
| 2016 | 5 |
| 2017 | 13 |
| 2018 | 8 |
| 2019 | 17 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 5 |
| 2026 | 6 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1929-02-20 | Record low minimum temperature | Record low minimum temperature -36.1 C (-33.0 F) |
| 1979-01-24 | Record snow depth | Record snow depth 91.4 cm (36.0 in) |
| 1982-07-11 | Record daily precipitation | Record daily precipitation 168.9 mm (6.6 in) |
| 1994-01-19 | Record low maximum temperature | Record low maximum temperature -27.2 C (-17.0 F) |
Wettest Day of Each Month
Jul: 168.9 mm (6.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 48.3 mm (1.9 in) | 16 January 1897 |
| Feb | 37.3 mm (1.5 in) | 12 February 1938 |
| Mar | 59.9 mm (2.4 in) | 31 March 1998 |
| Apr | 86.4 mm (3.4 in) | 15 April 2026 |
| May | 89.2 mm (3.5 in) | 18 May 2000 |
| Jun | 107.2 mm (4.2 in) | 23 June 2010 |
| Jul | 168.9 mm (6.6 in) | 11 July 1982 |
| Aug | 137.7 mm (5.4 in) | 18 August 2018 |
| Sep | 133.4 mm (5.3 in) | 12 September 2022 |
| Oct | 79.0 mm (3.1 in) | 3 October 2006 |
| Nov | 71.6 mm (2.8 in) | 4 November 2003 |
| Dec | 76.2 mm (3.0 in) | 2 December 2007 |
Period of Record Coverage
1893 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 352 | 96% | Yes |
| 1894 | 345 | 95% | Yes |
| 1895 | 352 | 96% | Yes |
| 1896 | 333 | 91% | Yes |
| 1897 | 349 | 96% | Yes |
| 1898 | 350 | 96% | Yes |
| 1899 | 354 | 97% | Yes |
| 1900 | 351 | 96% | Yes |
| 1901 | 255 | 70% | No |
| 1902 | 306 | 84% | No |
| 1903 | 350 | 96% | Yes |
| 1904 | 348 | 95% | Yes |
| 1905 | 356 | 98% | Yes |
| 1906 | 357 | 98% | Yes |
| 1907 | 359 | 98% | Yes |
| 1908 | 327 | 89% | No |
| 1909 | 354 | 97% | Yes |
| 1910 | 342 | 94% | Yes |
| 1911 | 345 | 95% | Yes |
| 1912 | 345 | 94% | Yes |
| 1913 | 348 | 95% | Yes |
| 1914 | 349 | 96% | Yes |
| 1915 | 323 | 88% | No |
| 1916 | 355 | 97% | Yes |
| 1917 | 349 | 96% | Yes |
| 1918 | 354 | 97% | Yes |
| 1919 | 357 | 98% | Yes |
| 1920 | 352 | 96% | Yes |
| 1921 | 364 | 100% | Yes |
| 1922 | 333 | 91% | Yes |
| 1923 | 360 | 99% | Yes |
| 1924 | 358 | 98% | Yes |
| 1925 | 360 | 99% | Yes |
| 1926 | 362 | 99% | Yes |
| 1927 | 361 | 99% | Yes |
| 1928 | 365 | 100% | Yes |
| 1929 | 354 | 97% | Yes |
| 1930 | 359 | 98% | Yes |
| 1931 | 364 | 100% | Yes |
| 1932 | 363 | 99% | Yes |
| 1933 | 364 | 100% | Yes |
| 1934 | 361 | 99% | Yes |
| 1935 | 361 | 99% | Yes |
| 1936 | 327 | 89% | No |
| 1937 | 364 | 100% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 363 | 99% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 362 | 99% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 357 | 98% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 355 | 97% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 334 | 92% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 356 | 98% | Yes |
| 1980 | 362 | 99% | Yes |
| 1981 | 358 | 98% | Yes |
| 1982 | 363 | 99% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 333 | 91% | Yes |
| 1990 | 363 | 99% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 364 | 100% | Yes |
| 1994 | 363 | 99% | Yes |
| 1995 | 364 | 100% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 364 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 335 | 92% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 364 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 363 | 99% | Yes |
| 2021 | 342 | 94% | Yes |
| 2022 | 363 | 99% | Yes |
| 2023 | 363 | 99% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 274 | 75% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 October 2026 | Watertown Wwtp, US | daily high max (Tie, Provisional) | 28.3 C (82.9 F) | tie | 97 years | 9 of 100 (Routine) |
| 1 October 2026 | Watertown Wwtp, US | daily rain (Provisional) | 24.4 mm (1.0 in) | 1.8 mm (0.07 in) | 8 years | 13 of 100 (Routine) |
| 1 August 2026 | Watertown Wwtp, US | daily rain | 89.4 mm (3.5 in) | 24.6 mm (1.0 in) | 91 years | 55 of 100 (Notable) |
| 18 June 2026 | Watertown Wwtp, US | daily low max (Tie) | 16.7 C (62.1 F) | tie | 76 years | 8 of 100 (Routine) |
| 15 April 2026 | Watertown Wwtp, US | monthly rain | 86.4 mm (3.4 in) | 14.5 mm (0.6 in) | 44 years | 49 of 100 (Notable) |
| 16 March 2026 | Watertown Wwtp, US | daily snowfall | 15.2 cm (6.0 in) | 7.6 cm (3.0 in) | 67 years | 45 of 100 (Notable) |
| 10 March 2026 | Watertown Wwtp, US | daily high max | 20.6 C (69.1 F) | 2.8 C (5.0 F) | 48 years | 28 of 100 (Routine) |
| 18 February 2026 | Watertown Wwtp, US | daily high min | 3.3 C (37.9 F) | 1.1 C (2.0 F) | 44 years | 24 of 100 (Routine) |
| 17 February 2026 | Watertown Wwtp, US | daily high max | 16.7 C (62.1 F) | 5.0 C (9.0 F) | 44 years | 31 of 100 (Routine) |
| 16 February 2026 | Watertown Wwtp, US | daily high max | 13.3 C (55.9 F) | 0.5 C (0.9 F) | 42 years | 22 of 100 (Routine) |
| 14 January 2026 | Watertown Wwtp, US | daily high max | 11.7 C (53.1 F) | 1.7 C (3.1 F) | 98 years | 41 of 100 (Notable) |
| 9 January 2026 | Watertown Wwtp, US | daily high max | 13.3 C (55.9 F) | 1.1 C (2.0 F) | 87 years | 37 of 100 (Notable) |
| 30 November 2025 | Watertown Wwtp, US | daily snowfall | 25.4 cm (10.0 in) | 16.5 cm (6.5 in) | 131 years | 80 of 100 (Exceptional) |
| 30 November 2025 | Watertown Wwtp, US | monthly snow depth (Tie) | 25.4 cm (10.0 in) | tie | 84 years | 11 of 100 (Routine) |
| 6 October 2025 | Watertown Wwtp, US | daily high min (Tie) | 16.1 C (61.0 F) | tie | 78 years | 8 of 100 (Routine) |
| 5 October 2025 | Watertown Wwtp, US | daily high max | 30.0 C (86.0 F) | 0.6 C (1.1 F) | 20 years | 17 of 100 (Routine) |
| 4 October 2025 | Watertown Wwtp, US | daily high max (Tie) | 30.6 C (87.1 F) | tie | 127 years | 10 of 100 (Routine) |
| 23 September 2025 | Watertown Wwtp, US | daily rain | 38.4 mm (1.5 in) | 1.6 mm (0.06 in) | 6 years | 12 of 100 (Routine) |
| 12 August 2025 | Watertown Wwtp, US | daily rain | 26.2 mm (1.0 in) | 1.3 mm (0.05 in) | 116 years | 41 of 100 (Notable) |
| 23 June 2025 | Watertown Wwtp, US | daily high min | 24.4 C (75.9 F) | 1.6 C (2.9 F) | 75 years | 35 of 100 (Notable) |
Climate Trend
121 complete years, 1893 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1893 | 4.3 C | -3.87 C |
| 1895 | 7.7 C | -0.49 C |
| 1897 | 7.6 C | -0.55 C |
| 1898 | 7.5 C | -0.66 C |
| 1899 | 7.3 C | -0.90 C |
| 1900 | 7.9 C | -0.28 C |
| 1903 | 6.9 C | -1.26 C |
| 1904 | 6.0 C | -2.22 C |
| 1905 | 6.7 C | -1.43 C |
| 1906 | 7.7 C | -0.46 C |
| 1907 | 6.4 C | -1.73 C |
| 1909 | 7.0 C | -1.18 C |
| 1910 | 7.8 C | -0.34 C |
| 1911 | 8.7 C | +0.56 C |
| 1912 | 6.3 C | -1.86 C |
| 1913 | 7.8 C | -0.38 C |
| 1914 | 7.7 C | -0.52 C |
| 1916 | 6.6 C | -1.58 C |
| 1917 | 5.1 C | -3.10 C |
| 1918 | 7.3 C | -0.86 C |
| 1919 | 8.0 C | -0.15 C |
| 1920 | 8.3 C | +0.10 C |
| 1921 | 10.1 C | +1.92 C |
| 1923 | 8.1 C | -0.05 C |
| 1924 | 6.7 C | -1.50 C |
| 1925 | 8.1 C | -0.08 C |
| 1926 | 7.6 C | -0.62 C |
| 1927 | 8.6 C | +0.45 C |
| 1928 | 8.9 C | +0.74 C |
| 1929 | 7.5 C | -0.68 C |
| 1930 | 9.2 C | +1.06 C |
| 1931 | 11.2 C | +3.07 C |
| 1932 | 8.8 C | +0.66 C |
| 1933 | 8.6 C | +0.46 C |
| 1934 | 9.2 C | +1.07 C |
| 1935 | 8.3 C | +0.13 C |
| 1937 | 8.0 C | -0.19 C |
| 1938 | 9.5 C | +1.36 C |
| 1939 | 9.7 C | +1.53 C |
| 1940 | 7.9 C | -0.29 C |
| 1941 | 9.9 C | +1.70 C |
| 1942 | 8.7 C | +0.53 C |
| 1943 | 8.2 C | +0.01 C |
| 1944 | 9.3 C | +1.17 C |
| 1945 | 8.4 C | +0.18 C |
| 1946 | 9.9 C | +1.68 C |
| 1947 | 8.7 C | +0.57 C |
| 1948 | 8.9 C | +0.68 C |
| 1949 | 9.4 C | +1.27 C |
| 1950 | 7.5 C | -0.63 C |
| 1951 | 7.2 C | -1.00 C |
| 1952 | 8.9 C | +0.76 C |
| 1953 | 9.6 C | +1.46 C |
| 1954 | 9.2 C | +1.01 C |
| 1955 | 8.9 C | +0.77 C |
| 1956 | 8.7 C | +0.48 C |
| 1957 | 8.1 C | -0.11 C |
| 1958 | 7.7 C | -0.48 C |
| 1959 | 7.8 C | -0.33 C |
| 1960 | 7.9 C | -0.27 C |
| 1961 | 8.5 C | +0.33 C |
| 1962 | 7.8 C | -0.36 C |
| 1963 | 7.7 C | -0.47 C |
| 1964 | 9.0 C | +0.87 C |
| 1965 | 7.9 C | -0.24 C |
| 1966 | 7.8 C | -0.36 C |
| 1967 | 7.8 C | -0.40 C |
| 1968 | 8.9 C | +0.72 C |
| 1970 | 8.5 C | +0.32 C |
| 1971 | 8.7 C | +0.51 C |
| 1972 | 7.5 C | -0.66 C |
| 1973 | 9.7 C | +1.51 C |
| 1974 | 8.4 C | +0.26 C |
| 1975 | 8.8 C | +0.61 C |
| 1976 | 7.8 C | -0.34 C |
| 1977 | 8.6 C | +0.46 C |
| 1978 | 7.6 C | -0.55 C |
| 1979 | 7.3 C | -0.86 C |
| 1980 | 8.1 C | -0.03 C |
| 1982 | 7.4 C | -0.80 C |
| 1983 | 8.5 C | +0.29 C |
| 1984 | 8.4 C | +0.27 C |
| 1985 | 7.5 C | -0.72 C |
| 1986 | 7.8 C | -0.34 C |
| 1987 | 9.5 C | +1.28 C |
| 1988 | 8.3 C | +0.10 C |
| 1990 | 8.9 C | +0.69 C |
| 1991 | 8.7 C | +0.51 C |
| 1992 | 7.8 C | -0.38 C |
| 1993 | 7.5 C | -0.70 C |
| 1994 | 7.8 C | -0.42 C |
| 1995 | 7.9 C | -0.32 C |
| 1996 | 6.6 C | -1.59 C |
| 1997 | 7.6 C | -0.62 C |
| 1998 | 10.3 C | +2.11 C |
| 1999 | 9.3 C | +1.09 C |
| 2000 | 8.4 C | +0.18 C |
| 2001 | 9.1 C | +0.96 C |
| 2002 | 8.9 C | +0.68 C |
| 2003 | 7.9 C | -0.26 C |
| 2004 | 8.0 C | -0.18 C |
| 2005 | 8.5 C | +0.33 C |
| 2006 | 8.9 C | +0.68 C |
| 2007 | 8.2 C | +0.07 C |
| 2009 | 7.2 C | -0.98 C |
| 2010 | 8.7 C | +0.56 C |
| 2011 | 8.0 C | -0.16 C |
| 2012 | 9.9 C | +1.77 C |
| 2013 | 6.9 C | -1.30 C |
| 2014 | 6.0 C | -2.16 C |
| 2015 | 8.3 C | +0.11 C |
| 2016 | 9.2 C | +1.01 C |
| 2017 | 8.6 C | +0.42 C |
| 2018 | 7.7 C | -0.49 C |
| 2019 | 6.9 C | -1.26 C |
| 2020 | 7.9 C | -0.32 C |
| 2021 | 9.0 C | +0.85 C |
| 2022 | 7.5 C | -0.69 C |
| 2023 | 9.3 C | +1.10 C |
| 2024 | 9.7 C | +1.54 C |
| 2025 | 8.3 C | +0.15 C |
The annual mean temperature here has risen by 0.06 C (0.01 to 0.11) per decade over 1893 to 2025. In Fahrenheit: 0.11 F (0.02 to 0.20) per decade. The slope is a straight line fitted to 121 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 (0.01 to 0.11) per decade | 0.11 F (0.02 to 0.20) per decade | 1893 to 2025 | 121 | Rise |
| Mean daily maximum | 0.03 C (-0.02 to 0.08) per decade | 0.05 F (-0.03 to 0.14) per decade | 1893 to 2025 | 121 | Not clearly different from zero |
| Mean daily minimum | 0.09 C (0.04 to 0.15) per decade | 0.2 F (0.1 to 0.3) per decade | 1893 to 2025 | 121 | 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 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.0 C (104.0 F) | 1901 | 35.0 C (95.0 F) | 134 |
| Coldest night (TNn) | -36.1 C (-33.0 F) | 1929 | -26.7 C (-16.1 F) | 134 |
| Wettest day (Rx1day) | 168.9 mm (6.6 in) | 1982 | 56.7 mm (2.2 in) | 134 |
| Wettest five days (Rx5day) | 270.0 mm (10.6 in) | 2008 | 90.1 mm (3.5 in) | 134 |
| Longest dry spell (CDD) | 44 days | 1961 | 20 days | 134 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 33.9 C (93.0 F) |
| 1894 | 36.7 C (98.1 F) |
| 1895 | 34.4 C (93.9 F) |
| 1896 | 35.0 C (95.0 F) |
| 1897 | 35.0 C (95.0 F) |
| 1898 | 33.3 C (91.9 F) |
| 1899 | 33.9 C (93.0 F) |
| 1900 | 35.6 C (96.1 F) |
| 1901 | 40.0 C (104.0 F) |
| 1902 | 32.2 C (90.0 F) |
| 1903 | 32.8 C (91.0 F) |
| 1904 | 34.4 C (93.9 F) |
| 1905 | 34.4 C (93.9 F) |
| 1906 | 32.2 C (90.0 F) |
| 1907 | 32.2 C (90.0 F) |
| 1908 | 35.0 C (95.0 F) |
| 1909 | 35.0 C (95.0 F) |
| 1910 | 35.0 C (95.0 F) |
| 1911 | 37.8 C (100.0 F) |
| 1912 | 33.3 C (91.9 F) |
| 1913 | 34.4 C (93.9 F) |
| 1914 | 33.9 C (93.0 F) |
| 1915 | 29.4 C (84.9 F) |
| 1916 | 37.8 C (100.0 F) |
| 1917 | 35.0 C (95.0 F) |
| 1918 | 36.1 C (97.0 F) |
| 1919 | 35.6 C (96.1 F) |
| 1920 | 34.4 C (93.9 F) |
| 1921 | 36.7 C (98.1 F) |
| 1922 | 36.7 C (98.1 F) |
| 1923 | 35.6 C (96.1 F) |
| 1924 | 31.1 C (88.0 F) |
| 1925 | 35.0 C (95.0 F) |
| 1926 | 35.0 C (95.0 F) |
| 1927 | 33.9 C (93.0 F) |
| 1928 | 33.9 C (93.0 F) |
| 1929 | 32.8 C (91.0 F) |
| 1930 | 36.7 C (98.1 F) |
| 1931 | 38.3 C (100.9 F) |
| 1932 | 36.7 C (98.1 F) |
| 1933 | 36.7 C (98.1 F) |
| 1934 | 39.4 C (102.9 F) |
| 1935 | 33.9 C (93.0 F) |
| 1936 | 36.7 C (98.1 F) |
| 1937 | 39.4 C (102.9 F) |
| 1938 | 35.0 C (95.0 F) |
| 1939 | 37.8 C (100.0 F) |
| 1940 | 38.9 C (102.0 F) |
| 1941 | 38.9 C (102.0 F) |
| 1942 | 36.7 C (98.1 F) |
| 1943 | 36.1 C (97.0 F) |
| 1944 | 37.2 C (99.0 F) |
| 1945 | 37.8 C (100.0 F) |
| 1946 | 36.7 C (98.1 F) |
| 1947 | 38.9 C (102.0 F) |
| 1948 | 37.8 C (100.0 F) |
| 1949 | 36.7 C (98.1 F) |
| 1950 | 33.3 C (91.9 F) |
| 1951 | 32.2 C (90.0 F) |
| 1952 | 35.6 C (96.1 F) |
| 1953 | 37.2 C (99.0 F) |
| 1954 | 35.0 C (95.0 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 35.6 C (96.1 F) |
| 1957 | 34.4 C (93.9 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 33.9 C (93.0 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 33.9 C (93.0 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 32.8 C (91.0 F) |
| 1968 | 35.0 C (95.0 F) |
| 1969 | 33.9 C (93.0 F) |
| 1970 | 35.6 C (96.1 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 36.1 C (97.0 F) |
| 1975 | 33.9 C (93.0 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 35.6 C (96.1 F) |
| 1979 | 32.8 C (91.0 F) |
| 1980 | 36.7 C (98.1 F) |
| 1981 | 34.4 C (93.9 F) |
| 1982 | 34.4 C (93.9 F) |
| 1983 | 38.3 C (100.9 F) |
| 1984 | 35.6 C (96.1 F) |
| 1985 | 35.0 C (95.0 F) |
| 1986 | 33.9 C (93.0 F) |
| 1987 | 36.1 C (97.0 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 36.1 C (97.0 F) |
| 1990 | 34.4 C (93.9 F) |
| 1991 | 35.0 C (95.0 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 32.8 C (91.0 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 38.3 C (100.9 F) |
| 1996 | 34.4 C (93.9 F) |
| 1997 | 32.8 C (91.0 F) |
| 1998 | 32.8 C (91.0 F) |
| 1999 | 35.6 C (96.1 F) |
| 2000 | 33.9 C (93.0 F) |
| 2001 | 35.0 C (95.0 F) |
| 2002 | 35.6 C (96.1 F) |
| 2003 | 34.4 C (93.9 F) |
| 2004 | 31.7 C (89.1 F) |
| 2005 | 34.4 C (93.9 F) |
| 2006 | 34.4 C (93.9 F) |
| 2007 | 33.3 C (91.9 F) |
| 2008 | 32.8 C (91.0 F) |
| 2009 | 34.4 C (93.9 F) |
| 2010 | 32.2 C (90.0 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 38.9 C (102.0 F) |
| 2013 | 34.4 C (93.9 F) |
| 2014 | 32.2 C (90.0 F) |
| 2015 | 32.8 C (91.0 F) |
| 2016 | 32.2 C (90.0 F) |
| 2017 | 33.3 C (91.9 F) |
| 2018 | 33.9 C (93.0 F) |
| 2019 | 32.2 C (90.0 F) |
| 2020 | 32.8 C (91.0 F) |
| 2021 | 35.0 C (95.0 F) |
| 2022 | 35.6 C (96.1 F) |
| 2023 | 36.1 C (97.0 F) |
| 2024 | 32.2 C (90.0 F) |
| 2025 | 33.3 C (91.9 F) |
| 2026 | 36.1 C (97.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -33.3 C (-27.9 F) |
| 1894 | -26.1 C (-15.0 F) |
| 1895 | -31.1 C (-24.0 F) |
| 1896 | -26.7 C (-16.1 F) |
| 1897 | -30.0 C (-22.0 F) |
| 1898 | -24.4 C (-11.9 F) |
| 1899 | -32.8 C (-27.0 F) |
| 1900 | -25.6 C (-14.1 F) |
| 1901 | -27.8 C (-18.0 F) |
| 1902 | -28.9 C (-20.0 F) |
| 1903 | -29.4 C (-20.9 F) |
| 1904 | -34.4 C (-29.9 F) |
| 1905 | -33.9 C (-29.0 F) |
| 1906 | -25.0 C (-13.0 F) |
| 1907 | -29.4 C (-20.9 F) |
| 1908 | -25.0 C (-13.0 F) |
| 1909 | -31.1 C (-24.0 F) |
| 1910 | -32.2 C (-26.0 F) |
| 1911 | -22.8 C (-9.0 F) |
| 1912 | -32.2 C (-26.0 F) |
| 1913 | -24.4 C (-11.9 F) |
| 1914 | -30.6 C (-23.1 F) |
| 1915 | -18.3 C (-0.9 F) |
| 1916 | -28.9 C (-20.0 F) |
| 1917 | -28.9 C (-20.0 F) |
| 1918 | -33.9 C (-29.0 F) |
| 1919 | -31.1 C (-24.0 F) |
| 1920 | -26.1 C (-15.0 F) |
| 1921 | -20.6 C (-5.1 F) |
| 1922 | -25.0 C (-13.0 F) |
| 1923 | -27.2 C (-17.0 F) |
| 1924 | -30.6 C (-23.1 F) |
| 1925 | -25.6 C (-14.1 F) |
| 1926 | -28.9 C (-20.0 F) |
| 1927 | -25.0 C (-13.0 F) |
| 1928 | -24.4 C (-11.9 F) |
| 1929 | -36.1 C (-33.0 F) |
| 1930 | -30.6 C (-23.1 F) |
| 1931 | -20.6 C (-5.1 F) |
| 1932 | -24.4 C (-11.9 F) |
| 1933 | -31.7 C (-25.1 F) |
| 1934 | -22.2 C (-8.0 F) |
| 1935 | -28.3 C (-18.9 F) |
| 1936 | -31.7 C (-25.1 F) |
| 1937 | -21.1 C (-6.0 F) |
| 1938 | -23.3 C (-9.9 F) |
| 1939 | -21.1 C (-6.0 F) |
| 1940 | -30.0 C (-22.0 F) |
| 1941 | -23.9 C (-11.0 F) |
| 1942 | -30.6 C (-23.1 F) |
| 1943 | -27.8 C (-18.0 F) |
| 1944 | -23.9 C (-11.0 F) |
| 1945 | -25.6 C (-14.1 F) |
| 1946 | -24.4 C (-11.9 F) |
| 1947 | -24.4 C (-11.9 F) |
| 1948 | -27.2 C (-17.0 F) |
| 1949 | -26.7 C (-16.1 F) |
| 1950 | -26.7 C (-16.1 F) |
| 1951 | -33.9 C (-29.0 F) |
| 1952 | -24.4 C (-11.9 F) |
| 1953 | -21.7 C (-7.1 F) |
| 1954 | -26.1 C (-15.0 F) |
| 1955 | -25.0 C (-13.0 F) |
| 1956 | -22.8 C (-9.0 F) |
| 1957 | -25.0 C (-13.0 F) |
| 1958 | -25.6 C (-14.1 F) |
| 1959 | -33.9 C (-29.0 F) |
| 1960 | -25.0 C (-13.0 F) |
| 1961 | -25.6 C (-14.1 F) |
| 1962 | -30.6 C (-23.1 F) |
| 1963 | -35.0 C (-31.0 F) |
| 1964 | -22.2 C (-8.0 F) |
| 1965 | -30.0 C (-22.0 F) |
| 1966 | -31.1 C (-24.0 F) |
| 1967 | -29.4 C (-20.9 F) |
| 1968 | -27.8 C (-18.0 F) |
| 1969 | -26.1 C (-15.0 F) |
| 1970 | -28.3 C (-18.9 F) |
| 1971 | -27.8 C (-18.0 F) |
| 1972 | -31.7 C (-25.1 F) |
| 1973 | -23.3 C (-9.9 F) |
| 1974 | -27.8 C (-18.0 F) |
| 1975 | -25.6 C (-14.1 F) |
| 1976 | -28.3 C (-18.9 F) |
| 1977 | -30.0 C (-22.0 F) |
| 1978 | -23.9 C (-11.0 F) |
| 1979 | -32.2 C (-26.0 F) |
| 1980 | -22.2 C (-8.0 F) |
| 1981 | -25.6 C (-14.1 F) |
| 1982 | -33.3 C (-27.9 F) |
| 1983 | -32.8 C (-27.0 F) |
| 1984 | -30.6 C (-23.1 F) |
| 1985 | -32.8 C (-27.0 F) |
| 1986 | -28.9 C (-20.0 F) |
| 1987 | -23.9 C (-11.0 F) |
| 1988 | -27.8 C (-18.0 F) |
| 1989 | -28.3 C (-18.9 F) |
| 1990 | -24.4 C (-11.9 F) |
| 1991 | -26.1 C (-15.0 F) |
| 1992 | -22.2 C (-8.0 F) |
| 1993 | -24.4 C (-11.9 F) |
| 1994 | -35.0 C (-31.0 F) |
| 1995 | -22.2 C (-8.0 F) |
| 1996 | -32.8 C (-27.0 F) |
| 1997 | -23.3 C (-9.9 F) |
| 1998 | -22.2 C (-8.0 F) |
| 1999 | -28.9 C (-20.0 F) |
| 2000 | -30.6 C (-23.1 F) |
| 2001 | -23.3 C (-9.9 F) |
| 2002 | -22.8 C (-9.0 F) |
| 2003 | -22.8 C (-9.0 F) |
| 2004 | -26.1 C (-15.0 F) |
| 2005 | -22.8 C (-9.0 F) |
| 2006 | -27.8 C (-18.0 F) |
| 2007 | -28.3 C (-18.9 F) |
| 2008 | -25.6 C (-14.1 F) |
| 2009 | -30.6 C (-23.1 F) |
| 2010 | -22.2 C (-8.0 F) |
| 2011 | -26.7 C (-16.1 F) |
| 2012 | -22.2 C (-8.0 F) |
| 2013 | -25.6 C (-14.1 F) |
| 2014 | -28.3 C (-18.9 F) |
| 2015 | -25.0 C (-13.0 F) |
| 2016 | -25.6 C (-14.1 F) |
| 2017 | -23.3 C (-9.9 F) |
| 2018 | -25.0 C (-13.0 F) |
| 2019 | -35.0 C (-31.0 F) |
| 2020 | -25.6 C (-14.1 F) |
| 2021 | -26.7 C (-16.1 F) |
| 2022 | -27.2 C (-17.0 F) |
| 2023 | -24.4 C (-11.9 F) |
| 2024 | -23.3 C (-9.9 F) |
| 2025 | -25.0 C (-13.0 F) |
| 2026 | -27.8 C (-18.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 38.1 mm (1.5 in) |
| 1894 | 42.4 mm (1.7 in) |
| 1895 | 31.8 mm (1.3 in) |
| 1896 | 38.1 mm (1.5 in) |
| 1897 | 48.3 mm (1.9 in) |
| 1898 | 67.1 mm (2.6 in) |
| 1899 | 46.0 mm (1.8 in) |
| 1900 | 40.6 mm (1.6 in) |
| 1901 | 41.9 mm (1.6 in) |
| 1902 | 42.4 mm (1.7 in) |
| 1903 | 96.5 mm (3.8 in) |
| 1904 | 41.4 mm (1.6 in) |
| 1905 | 58.4 mm (2.3 in) |
| 1906 | 46.2 mm (1.8 in) |
| 1907 | 83.3 mm (3.3 in) |
| 1908 | 32.3 mm (1.3 in) |
| 1909 | 39.1 mm (1.5 in) |
| 1910 | 36.1 mm (1.4 in) |
| 1911 | 50.8 mm (2.0 in) |
| 1912 | 86.4 mm (3.4 in) |
| 1913 | 44.2 mm (1.7 in) |
| 1914 | 117.3 mm (4.6 in) |
| 1915 | 99.1 mm (3.9 in) |
| 1916 | 58.9 mm (2.3 in) |
| 1917 | 73.7 mm (2.9 in) |
| 1918 | 30.5 mm (1.2 in) |
| 1919 | 58.4 mm (2.3 in) |
| 1920 | 49.3 mm (1.9 in) |
| 1921 | 129.5 mm (5.1 in) |
| 1922 | 59.7 mm (2.4 in) |
| 1923 | 54.6 mm (2.1 in) |
| 1924 | 50.3 mm (2.0 in) |
| 1925 | 51.6 mm (2.0 in) |
| 1926 | 47.2 mm (1.9 in) |
| 1927 | 55.1 mm (2.2 in) |
| 1928 | 54.1 mm (2.1 in) |
| 1929 | 70.4 mm (2.8 in) |
| 1930 | 32.0 mm (1.3 in) |
| 1931 | 40.6 mm (1.6 in) |
| 1932 | 38.6 mm (1.5 in) |
| 1933 | 70.6 mm (2.8 in) |
| 1934 | 65.5 mm (2.6 in) |
| 1935 | 64.8 mm (2.6 in) |
| 1936 | 40.4 mm (1.6 in) |
| 1937 | 41.9 mm (1.6 in) |
| 1938 | 89.9 mm (3.5 in) |
| 1939 | 40.1 mm (1.6 in) |
| 1940 | 86.9 mm (3.4 in) |
| 1941 | 93.7 mm (3.7 in) |
| 1942 | 71.6 mm (2.8 in) |
| 1943 | 54.6 mm (2.1 in) |
| 1944 | 35.3 mm (1.4 in) |
| 1945 | 64.5 mm (2.5 in) |
| 1946 | 37.1 mm (1.5 in) |
| 1947 | 44.5 mm (1.8 in) |
| 1948 | 35.6 mm (1.4 in) |
| 1949 | 48.8 mm (1.9 in) |
| 1950 | 90.7 mm (3.6 in) |
| 1951 | 50.3 mm (2.0 in) |
| 1952 | 39.1 mm (1.5 in) |
| 1953 | 46.0 mm (1.8 in) |
| 1954 | 52.6 mm (2.1 in) |
| 1955 | 76.7 mm (3.0 in) |
| 1956 | 74.7 mm (2.9 in) |
| 1957 | 50.0 mm (2.0 in) |
| 1958 | 40.9 mm (1.6 in) |
| 1959 | 74.4 mm (2.9 in) |
| 1960 | 75.4 mm (3.0 in) |
| 1961 | 85.1 mm (3.4 in) |
| 1962 | 35.8 mm (1.4 in) |
| 1963 | 33.3 mm (1.3 in) |
| 1964 | 62.2 mm (2.4 in) |
| 1965 | 71.9 mm (2.8 in) |
| 1966 | 54.1 mm (2.1 in) |
| 1967 | 45.2 mm (1.8 in) |
| 1968 | 87.4 mm (3.4 in) |
| 1969 | 68.1 mm (2.7 in) |
| 1970 | 42.2 mm (1.7 in) |
| 1971 | 43.4 mm (1.7 in) |
| 1972 | 77.2 mm (3.0 in) |
| 1973 | 46.2 mm (1.8 in) |
| 1974 | 37.3 mm (1.5 in) |
| 1975 | 44.7 mm (1.8 in) |
| 1976 | 54.4 mm (2.1 in) |
| 1977 | 75.9 mm (3.0 in) |
| 1978 | 58.2 mm (2.3 in) |
| 1979 | 47.8 mm (1.9 in) |
| 1980 | 48.5 mm (1.9 in) |
| 1981 | 71.1 mm (2.8 in) |
| 1982 | 168.9 mm (6.6 in) |
| 1983 | 28.2 mm (1.1 in) |
| 1984 | 65.8 mm (2.6 in) |
| 1985 | 50.3 mm (2.0 in) |
| 1986 | 84.6 mm (3.3 in) |
| 1987 | 67.6 mm (2.7 in) |
| 1988 | 45.0 mm (1.8 in) |
| 1989 | 62.7 mm (2.5 in) |
| 1990 | 38.1 mm (1.5 in) |
| 1991 | 103.9 mm (4.1 in) |
| 1992 | 45.5 mm (1.8 in) |
| 1993 | 81.3 mm (3.2 in) |
| 1994 | 65.0 mm (2.6 in) |
| 1995 | 69.9 mm (2.8 in) |
| 1996 | 84.3 mm (3.3 in) |
| 1997 | 75.9 mm (3.0 in) |
| 1998 | 59.9 mm (2.4 in) |
| 1999 | 62.0 mm (2.4 in) |
| 2000 | 89.2 mm (3.5 in) |
| 2001 | 68.6 mm (2.7 in) |
| 2002 | 50.3 mm (2.0 in) |
| 2003 | 71.6 mm (2.8 in) |
| 2004 | 82.8 mm (3.3 in) |
| 2005 | 40.9 mm (1.6 in) |
| 2006 | 129.5 mm (5.1 in) |
| 2007 | 76.2 mm (3.0 in) |
| 2008 | 101.1 mm (4.0 in) |
| 2009 | 79.2 mm (3.1 in) |
| 2010 | 116.6 mm (4.6 in) |
| 2011 | 33.5 mm (1.3 in) |
| 2012 | 41.9 mm (1.6 in) |
| 2013 | 64.0 mm (2.5 in) |
| 2014 | 58.7 mm (2.3 in) |
| 2015 | 68.8 mm (2.7 in) |
| 2016 | 47.2 mm (1.9 in) |
| 2017 | 62.2 mm (2.4 in) |
| 2018 | 137.7 mm (5.4 in) |
| 2019 | 74.9 mm (2.9 in) |
| 2020 | 85.9 mm (3.4 in) |
| 2021 | 62.5 mm (2.5 in) |
| 2022 | 133.4 mm (5.3 in) |
| 2023 | 50.5 mm (2.0 in) |
| 2024 | 51.1 mm (2.0 in) |
| 2025 | 38.4 mm (1.5 in) |
| 2026 | 89.4 mm (3.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 57.2 mm (2.3 in) |
| 1894 | 51.6 mm (2.0 in) |
| 1895 | 35.4 mm (1.4 in) |
| 1896 | 70.3 mm (2.8 in) |
| 1897 | 78.0 mm (3.1 in) |
| 1898 | 84.9 mm (3.3 in) |
| 1899 | 66.1 mm (2.6 in) |
| 1900 | 47.1 mm (1.9 in) |
| 1901 | 76.4 mm (3.0 in) |
| 1902 | 61.7 mm (2.4 in) |
| 1903 | 58.2 mm (2.3 in) |
| 1904 | 70.0 mm (2.8 in) |
| 1905 | 97.0 mm (3.8 in) |
| 1906 | 65.0 mm (2.6 in) |
| 1907 | 93.2 mm (3.7 in) |
| 1908 | 59.7 mm (2.4 in) |
| 1909 | 96.3 mm (3.8 in) |
| 1910 | 56.4 mm (2.2 in) |
| 1911 | 73.7 mm (2.9 in) |
| 1912 | 116.9 mm (4.6 in) |
| 1913 | 71.1 mm (2.8 in) |
| 1914 | 129.0 mm (5.1 in) |
| 1915 | 147.8 mm (5.8 in) |
| 1916 | 75.4 mm (3.0 in) |
| 1917 | 98.7 mm (3.9 in) |
| 1918 | 58.9 mm (2.3 in) |
| 1919 | 114.8 mm (4.5 in) |
| 1920 | 94.6 mm (3.7 in) |
| 1921 | 149.5 mm (5.9 in) |
| 1922 | 76.0 mm (3.0 in) |
| 1923 | 73.1 mm (2.9 in) |
| 1924 | 102.9 mm (4.1 in) |
| 1925 | 77.5 mm (3.1 in) |
| 1926 | 57.2 mm (2.3 in) |
| 1927 | 119.4 mm (4.7 in) |
| 1928 | 73.7 mm (2.9 in) |
| 1929 | 133.1 mm (5.2 in) |
| 1930 | 54.3 mm (2.1 in) |
| 1931 | 71.6 mm (2.8 in) |
| 1932 | 41.6 mm (1.6 in) |
| 1933 | 116.9 mm (4.6 in) |
| 1934 | 89.1 mm (3.5 in) |
| 1935 | 79.3 mm (3.1 in) |
| 1936 | 76.0 mm (3.0 in) |
| 1937 | 61.1 mm (2.4 in) |
| 1938 | 124.2 mm (4.9 in) |
| 1939 | 59.5 mm (2.3 in) |
| 1940 | 160.3 mm (6.3 in) |
| 1941 | 152.2 mm (6.0 in) |
| 1942 | 113.2 mm (4.5 in) |
| 1943 | 67.8 mm (2.7 in) |
| 1944 | 56.6 mm (2.2 in) |
| 1945 | 78.7 mm (3.1 in) |
| 1946 | 47.3 mm (1.9 in) |
| 1947 | 68.6 mm (2.7 in) |
| 1948 | 59.2 mm (2.3 in) |
| 1949 | 62.5 mm (2.5 in) |
| 1950 | 174.8 mm (6.9 in) |
| 1951 | 113.3 mm (4.5 in) |
| 1952 | 79.8 mm (3.1 in) |
| 1953 | 124.3 mm (4.9 in) |
| 1954 | 102.4 mm (4.0 in) |
| 1955 | 138.2 mm (5.4 in) |
| 1956 | 106.4 mm (4.2 in) |
| 1957 | 52.5 mm (2.1 in) |
| 1958 | 66.0 mm (2.6 in) |
| 1959 | 88.1 mm (3.5 in) |
| 1960 | 101.0 mm (4.0 in) |
| 1961 | 137.7 mm (5.4 in) |
| 1962 | 45.7 mm (1.8 in) |
| 1963 | 44.5 mm (1.8 in) |
| 1964 | 93.9 mm (3.7 in) |
| 1965 | 164.9 mm (6.5 in) |
| 1966 | 60.0 mm (2.4 in) |
| 1967 | 81.0 mm (3.2 in) |
| 1968 | 94.0 mm (3.7 in) |
| 1969 | 112.3 mm (4.4 in) |
| 1970 | 75.2 mm (3.0 in) |
| 1971 | 59.9 mm (2.4 in) |
| 1972 | 129.5 mm (5.1 in) |
| 1973 | 75.7 mm (3.0 in) |
| 1974 | 61.7 mm (2.4 in) |
| 1975 | 90.2 mm (3.6 in) |
| 1976 | 76.2 mm (3.0 in) |
| 1977 | 126.7 mm (5.0 in) |
| 1978 | 109.0 mm (4.3 in) |
| 1979 | 83.3 mm (3.3 in) |
| 1980 | 104.9 mm (4.1 in) |
| 1981 | 108.8 mm (4.3 in) |
| 1982 | 215.4 mm (8.5 in) |
| 1983 | 46.2 mm (1.8 in) |
| 1984 | 100.8 mm (4.0 in) |
| 1985 | 74.4 mm (2.9 in) |
| 1986 | 108.3 mm (4.3 in) |
| 1987 | 94.0 mm (3.7 in) |
| 1988 | 89.9 mm (3.5 in) |
| 1989 | 65.7 mm (2.6 in) |
| 1990 | 91.7 mm (3.6 in) |
| 1991 | 163.9 mm (6.5 in) |
| 1992 | 65.5 mm (2.6 in) |
| 1993 | 89.7 mm (3.5 in) |
| 1994 | 115.8 mm (4.6 in) |
| 1995 | 96.9 mm (3.8 in) |
| 1996 | 113.2 mm (4.5 in) |
| 1997 | 92.1 mm (3.6 in) |
| 1998 | 88.7 mm (3.5 in) |
| 1999 | 91.8 mm (3.6 in) |
| 2000 | 138.0 mm (5.4 in) |
| 2001 | 90.9 mm (3.6 in) |
| 2002 | 62.7 mm (2.5 in) |
| 2003 | 114.3 mm (4.5 in) |
| 2004 | 120.4 mm (4.7 in) |
| 2005 | 99.1 mm (3.9 in) |
| 2006 | 160.8 mm (6.3 in) |
| 2007 | 196.7 mm (7.7 in) |
| 2008 | 270.0 mm (10.6 in) |
| 2009 | 110.7 mm (4.4 in) |
| 2010 | 174.3 mm (6.9 in) |
| 2011 | 57.7 mm (2.3 in) |
| 2012 | 70.9 mm (2.8 in) |
| 2013 | 100.4 mm (4.0 in) |
| 2014 | 121.9 mm (4.8 in) |
| 2015 | 115.1 mm (4.5 in) |
| 2016 | 55.6 mm (2.2 in) |
| 2017 | 78.7 mm (3.1 in) |
| 2018 | 268.3 mm (10.6 in) |
| 2019 | 109.7 mm (4.3 in) |
| 2020 | 97.3 mm (3.8 in) |
| 2021 | 128.0 mm (5.0 in) |
| 2022 | 156.1 mm (6.1 in) |
| 2023 | 69.6 mm (2.7 in) |
| 2024 | 81.4 mm (3.2 in) |
| 2025 | 92.5 mm (3.6 in) |
| 2026 | 144.1 mm (5.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 29 days |
| 1894 | 19 days |
| 1895 | 19 days |
| 1896 | 15 days |
| 1897 | 19 days |
| 1898 | 15 days |
| 1899 | 16 days |
| 1900 | 14 days |
| 1901 | 19 days |
| 1902 | 20 days |
| 1903 | 23 days |
| 1904 | 18 days |
| 1905 | 17 days |
| 1906 | 16 days |
| 1907 | 14 days |
| 1908 | 16 days |
| 1909 | 16 days |
| 1910 | 27 days |
| 1911 | 27 days |
| 1912 | 11 days |
| 1913 | 22 days |
| 1914 | 22 days |
| 1915 | 16 days |
| 1916 | 15 days |
| 1917 | 22 days |
| 1918 | 22 days |
| 1919 | 26 days |
| 1920 | 20 days |
| 1921 | 16 days |
| 1922 | 16 days |
| 1923 | 20 days |
| 1924 | 33 days |
| 1925 | 29 days |
| 1926 | 16 days |
| 1927 | 19 days |
| 1928 | 18 days |
| 1929 | 19 days |
| 1930 | 14 days |
| 1931 | 17 days |
| 1932 | 23 days |
| 1933 | 17 days |
| 1934 | 19 days |
| 1935 | 15 days |
| 1936 | 23 days |
| 1937 | 18 days |
| 1938 | 18 days |
| 1939 | 30 days |
| 1940 | 20 days |
| 1941 | 16 days |
| 1942 | 28 days |
| 1943 | 26 days |
| 1944 | 27 days |
| 1945 | 15 days |
| 1946 | 19 days |
| 1947 | 25 days |
| 1948 | 18 days |
| 1949 | 12 days |
| 1950 | 30 days |
| 1951 | 17 days |
| 1952 | 30 days |
| 1953 | 24 days |
| 1954 | 19 days |
| 1955 | 20 days |
| 1956 | 27 days |
| 1957 | 23 days |
| 1958 | 32 days |
| 1959 | 28 days |
| 1960 | 26 days |
| 1961 | 44 days |
| 1962 | 17 days |
| 1963 | 16 days |
| 1964 | 23 days |
| 1965 | 15 days |
| 1966 | 25 days |
| 1967 | 20 days |
| 1968 | 24 days |
| 1969 | 25 days |
| 1970 | 17 days |
| 1971 | 22 days |
| 1972 | 18 days |
| 1973 | 15 days |
| 1974 | 14 days |
| 1975 | 15 days |
| 1976 | 26 days |
| 1977 | 17 days |
| 1978 | 22 days |
| 1979 | 20 days |
| 1980 | 15 days |
| 1981 | 25 days |
| 1982 | 24 days |
| 1983 | 14 days |
| 1984 | 21 days |
| 1985 | 11 days |
| 1986 | 20 days |
| 1987 | 29 days |
| 1988 | 37 days |
| 1989 | 21 days |
| 1990 | 15 days |
| 1991 | 16 days |
| 1992 | 16 days |
| 1993 | 14 days |
| 1994 | 14 days |
| 1995 | 22 days |
| 1996 | 27 days |
| 1997 | 15 days |
| 1998 | 18 days |
| 1999 | 25 days |
| 2000 | 23 days |
| 2001 | 15 days |
| 2002 | 25 days |
| 2003 | 28 days |
| 2004 | 21 days |
| 2005 | 18 days |
| 2006 | 16 days |
| 2007 | 33 days |
| 2008 | 17 days |
| 2009 | 27 days |
| 2010 | 26 days |
| 2011 | 16 days |
| 2012 | 26 days |
| 2013 | 20 days |
| 2014 | 16 days |
| 2015 | 27 days |
| 2016 | 25 days |
| 2017 | 15 days |
| 2018 | 20 days |
| 2019 | 27 days |
| 2020 | 20 days |
| 2021 | 28 days |
| 2022 | 22 days |
| 2023 | 18 days |
| 2024 | 22 days |
| 2025 | 32 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
121 years with a frostAcross 121 years with a frost, the median last spring frost at Watertown Wwtp falls on 3 May and the median first autumn frost on 8 October, which leaves a median of 162 days between them.
In 1995 to 2025 the median growing season was 170 days. That is 17 days more than in 1893 to 1929.
Fitted over all years, the growing season changes by +1.8 days per decade at this station.
| Measure | Median, all years | Earliest period (1893 to 1929) | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 3 May | 9 May | 27 April | 12 days earlier | -1.0 days per decade |
| First autumn frost | 8 October | 7 October | 13 October | 6 days later | +0.9 days per decade |
| Growing days | 162 days | 153 days | 170 days | 17 days more | +1.8 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
125 years, 1893 to 2025A day with at least 57.6 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 150.6 mm (5.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 57.6 mm (2.3 in) | |
| 5 years | 78.9 mm (3.1 in) | |
| 10 years | 94.4 mm (3.7 in) | |
| 25 years | 115.5 mm (4.5 in) | |
| 50 years | 132.5 mm (5.2 in) | |
| 100 years | 150.6 mm (5.9 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 125 years of values from 1893 to 2025.
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: 168.9 mm (6.6 in) in 1982; 137.7 mm (5.4 in) in 2018; 133.4 mm (5.3 in) in 2022.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Watertown Wwtp, at 2002. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2002 ran 0.3 C (0.6 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 2002 | -0.3 | -0.6 | 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.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Watertown Wwtp had a mean temperature of 8.2 C (46.8 F) and 935.4 mm (36.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Angola (United States, 348 km away), Whitehall (United States, 1,239 km away) and Greenville 2 NNE (United States, 283 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Angola | United States | 348 km (216 mi) | 8.5 C (47.3 F) | 905.2 mm (35.6 in) | 0.66 |
| Whitehall | United States | 1,239 km (770 mi) | 8.4 C (47.1 F) | 959.5 mm (37.8 in) | 0.67 |
| Greenville 2 NNE | United States | 283 km (176 mi) | 8.3 C (46.9 F) | 867.6 mm (34.2 in) | 0.79 |
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).