Watertown Rgnl AP Weather Records (USW00014946)
Record envelope, standing records and threshold days for Watertown Rgnl AP (USW00014946), South Dakota, United States, with 134 years of record.
Key Facts for Watertown Rgnl AP
- Watertown Rgnl AP (USW00014946) is a weather station in South Dakota, United States at 44.90 latitude and -97.15 longitude, 531 m (1,741 ft) above sea level.
- The station reports from 1893 to 2026, 134 years of record.
- 1,464 records set at Watertown Rgnl AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Watertown Rgnl AP set a daily record high maximum temperature of 31.1 C (88.0 F) on 10 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: South Dakota, United States, 44.90 latitude, -97.15 longitude.
- Elevation: 531 m (1,741 ft).
- Period of record: 1893 to 2026, 134 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
3 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 18.3 C (64.9 F) | -40.0 C (-40.0 F) | 8.3 C (46.9 F) | -29.4 C (-20.9 F) |
| Feb | 18.9 C (66.0 F) | -38.9 C (-38.0 F) | 14.4 C (57.9 F) | -20.0 C (-4.0 F) |
| Mar | 27.8 C (82.0 F) | -32.8 C (-27.0 F) | 24.4 C (75.9 F) | -18.9 C (-2.0 F) |
| Apr | 35.0 C (95.0 F) | -23.3 C (-9.9 F) | 30.6 C (87.1 F) | -10.0 C (14.0 F) |
| May | 41.1 C (106.0 F) | -8.9 C (16.0 F) | 32.8 C (91.0 F) | -2.8 C (27.0 F) |
| Jun | 41.7 C (107.1 F) | -3.9 C (25.0 F) | 32.8 C (91.0 F) | 6.1 C (43.0 F) |
| Jul | 43.3 C (109.9 F) | 1.7 C (35.1 F) | 35.6 C (96.1 F) | 10.6 C (51.1 F) |
| Aug | 40.6 C (105.1 F) | 0.0 C (32.0 F) | 32.2 C (90.0 F) | 8.3 C (46.9 F) |
| Sep | 40.0 C (104.0 F) | -12.8 C (9.0 F) | 33.9 C (93.0 F) | 6.7 C (44.1 F) |
| Oct | 32.8 C (91.0 F) | -18.9 C (-2.0 F) | 31.1 C (88.0 F) | 1.7 C (35.1 F) |
| Nov | 25.6 C (78.1 F) | -28.9 C (-20.0 F) | n/a | n/a |
| Dec | 20.6 C (69.1 F) | -38.2 C (-36.8 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 15 |
| 1894 | 15 |
| 1895 | 2 |
| 1897 | 19 |
| 1898 | 14 |
| 1899 | 30 |
| 1900 | 11 |
| 1901 | 1 |
| 1902 | 13 |
| 1903 | 9 |
| 1904 | 13 |
| 1905 | 10 |
| 1906 | 5 |
| 1907 | 16 |
| 1908 | 7 |
| 1909 | 13 |
| 1910 | 14 |
| 1911 | 24 |
| 1912 | 11 |
| 1913 | 18 |
| 1914 | 10 |
| 1915 | 15 |
| 1916 | 15 |
| 1917 | 21 |
| 1918 | 14 |
| 1919 | 9 |
| 1920 | 4 |
| 1921 | 17 |
| 1922 | 5 |
| 1923 | 11 |
| 1924 | 8 |
| 1925 | 15 |
| 1926 | 11 |
| 1927 | 24 |
| 1928 | 17 |
| 1929 | 16 |
| 1930 | 24 |
| 1931 | 36 |
| 1932 | 11 |
| 1933 | 23 |
| 1934 | 32 |
| 1935 | 16 |
| 1936 | 43 |
| 1937 | 15 |
| 1938 | 5 |
| 1939 | 17 |
| 1940 | 11 |
| 1941 | 13 |
| 1942 | 15 |
| 1943 | 12 |
| 1944 | 11 |
| 1945 | 9 |
| 1946 | 10 |
| 1947 | 12 |
| 1948 | 8 |
| 1949 | 3 |
| 1950 | 14 |
| 1951 | 19 |
| 1952 | 3 |
| 1953 | 12 |
| 1954 | 7 |
| 1955 | 9 |
| 1956 | 7 |
| 1957 | 2 |
| 1958 | 10 |
| 1959 | 14 |
| 1960 | 9 |
| 1961 | 4 |
| 1962 | 15 |
| 1963 | 6 |
| 1964 | 14 |
| 1965 | 10 |
| 1966 | 12 |
| 1967 | 4 |
| 1968 | 8 |
| 1969 | 9 |
| 1970 | 3 |
| 1971 | 5 |
| 1972 | 8 |
| 1973 | 6 |
| 1974 | 14 |
| 1975 | 5 |
| 1976 | 11 |
| 1977 | 15 |
| 1978 | 4 |
| 1979 | 5 |
| 1980 | 6 |
| 1981 | 5 |
| 1982 | 4 |
| 1983 | 15 |
| 1984 | 7 |
| 1985 | 11 |
| 1986 | 1 |
| 1987 | 17 |
| 1988 | 18 |
| 1989 | 9 |
| 1990 | 13 |
| 1991 | 14 |
| 1992 | 14 |
| 1993 | 3 |
| 1994 | 9 |
| 1995 | 5 |
| 1996 | 3 |
| 1997 | 12 |
| 1998 | 5 |
| 1999 | 8 |
| 2000 | 17 |
| 2001 | 9 |
| 2002 | 8 |
| 2003 | 10 |
| 2004 | 7 |
| 2005 | 9 |
| 2006 | 5 |
| 2007 | 6 |
| 2008 | 3 |
| 2009 | 10 |
| 2010 | 4 |
| 2011 | 6 |
| 2012 | 16 |
| 2013 | 13 |
| 2014 | 5 |
| 2015 | 9 |
| 2016 | 11 |
| 2017 | 4 |
| 2018 | 9 |
| 2019 | 6 |
| 2020 | 13 |
| 2021 | 13 |
| 2022 | 4 |
| 2023 | 6 |
| 2024 | 9 |
| 2025 | 8 |
| 2026 | 3 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1931-05-27 | Record daily precipitation | Record daily precipitation 181.4 mm (7.1 in) |
| 1931-09-07 | Record high minimum temperature | Record high minimum temperature 25.0 C (77.0 F) |
| 1934-07-21 | Record high maximum temperature | Record high maximum temperature 43.3 C (109.9 F) |
| 1969-03-01 | Record snow depth | Record snow depth 83.8 cm (33.0 in) |
| 1982-07-05 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
| 2008-04-25 | Record daily snowfall | Record daily snowfall 48.3 cm (19.0 in) |
| 2011-01-19 | Record snow depth | Record snow depth 86.4 cm (34.0 in) |
| 2011-01-31 | Record snow depth | Record snow depth 106.7 cm (42.0 in) |
Wettest Day of Each Month
May: 181.4 mm (7.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 32.3 mm (1.3 in) | 9 January 1939 |
| Feb | 39.1 mm (1.5 in) | 23 February 1977 |
| Mar | 49.5 mm (1.9 in) | 29 March 1924 |
| Apr | 82.6 mm (3.3 in) | 14 April 1912 |
| May | 181.4 mm (7.1 in) | 27 May 1931 |
| Jun | 110.5 mm (4.4 in) | 15 June 1977 |
| Jul | 87.6 mm (3.4 in) | 20 July 1897 |
| Aug | 109.7 mm (4.3 in) | 20 August 2002 |
| Sep | 74.4 mm (2.9 in) | 24 September 1934 |
| Oct | 94.5 mm (3.7 in) | 16 October 1971 |
| Nov | 38.1 mm (1.5 in) | 8 November 1970 |
| Dec | 33.8 mm (1.3 in) | 3 December 1953 |
Period of Record Coverage
1893 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 326 | 89% | No |
| 1894 | 221 | 61% | No |
| 1895 | 24 | 7% | No |
| 1897 | 298 | 82% | No |
| 1898 | 363 | 99% | Yes |
| 1899 | 364 | 100% | Yes |
| 1900 | 360 | 99% | Yes |
| 1901 | 78 | 21% | No |
| 1902 | 294 | 81% | No |
| 1903 | 354 | 97% | Yes |
| 1904 | 356 | 97% | Yes |
| 1905 | 354 | 97% | Yes |
| 1906 | 353 | 97% | Yes |
| 1907 | 333 | 91% | Yes |
| 1908 | 345 | 94% | Yes |
| 1909 | 353 | 97% | Yes |
| 1910 | 332 | 91% | Yes |
| 1911 | 358 | 98% | Yes |
| 1912 | 361 | 99% | Yes |
| 1913 | 364 | 100% | Yes |
| 1914 | 362 | 99% | Yes |
| 1915 | 364 | 100% | Yes |
| 1916 | 365 | 100% | Yes |
| 1917 | 361 | 99% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 364 | 100% | Yes |
| 1922 | 364 | 100% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 364 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 365 | 100% | Yes |
| 1929 | 364 | 100% | Yes |
| 1930 | 364 | 100% | Yes |
| 1931 | 363 | 99% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 363 | 99% | Yes |
| 1935 | 364 | 100% | Yes |
| 1936 | 364 | 99% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 355 | 97% | Yes |
| 1941 | 362 | 99% | Yes |
| 1942 | 359 | 98% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 363 | 99% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 363 | 99% | 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 | 365 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 363 | 99% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 303 | 83% | No |
| 1986 | 362 | 99% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 296 | 81% | No |
| 1997 | 364 | 100% | Yes |
| 1998 | 363 | 99% | Yes |
| 1999 | 364 | 100% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 364 | 100% | Yes |
| 2023 | 364 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 285 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 10 October 2026 | Watertown Rgnl AP, US | daily high max (Provisional) | 31.1 C (88.0 F) | 1.1 C (2.0 F) | 116 years | 41 of 100 (Notable) |
| 5 September 2026 | Watertown Rgnl AP, US | daily high min (Provisional) | 22.2 C (72.0 F) | 0.5 C (0.9 F) | 65 years | 29 of 100 (Routine) |
| 30 August 2026 | Watertown Rgnl AP, US | daily high min (Tie, Provisional) | 19.4 C (66.9 F) | tie | 53 years | 6 of 100 (Routine) |
| 22 April 2026 | Watertown Rgnl AP, US | daily high max (Tie) | 30.6 C (87.1 F) | tie | 36 years | 5 of 100 (Routine) |
| 17 February 2026 | Watertown Rgnl AP, US | daily high min | 2.8 C (37.0 F) | 2.2 C (4.0 F) | 44 years | 25 of 100 (Routine) |
| 16 February 2026 | Watertown Rgnl AP, US | daily high max | 12.8 C (55.0 F) | 0.6 C (1.1 F) | 44 years | 23 of 100 (Routine) |
| 23 January 2026 | Watertown Rgnl AP, US | daily low max | -23.9 C (-11.0 F) | 0.6 C (1.1 F) | 90 years | 37 of 100 (Notable) |
| 6 December 2025 | Watertown Rgnl AP, US | daily snowfall | 2.5 cm (1.0 in) | 0.5 cm (0.2 in) | 32 years | 20 of 100 (Routine) |
| 29 November 2025 | Watertown Rgnl AP, US | daily rain | 5.8 mm (0.23 in) | 0.7 mm (0.03 in) | 131 years | 20 of 100 (Routine) |
| 14 November 2025 | Watertown Rgnl AP, US | daily high max (Tie) | 20.0 C (68.0 F) | tie | 72 years | 7 of 100 (Routine) |
| 4 October 2025 | Watertown Rgnl AP, US | daily high min | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 111 years | 42 of 100 (Notable) |
| 3 October 2025 | Watertown Rgnl AP, US | daily high min (Tie) | 15.0 C (59.0 F) | tie | 94 years | 9 of 100 (Routine) |
| 30 September 2025 | Watertown Rgnl AP, US | daily high min | 16.1 C (61.0 F) | 1.7 C (3.1 F) | 54 years | 29 of 100 (Routine) |
| 29 September 2025 | Watertown Rgnl AP, US | daily high max | 31.1 C (88.0 F) | 0.5 C (0.9 F) | 127 years | 40 of 100 (Notable) |
| 5 August 2025 | Watertown Rgnl AP, US | daily rain | 53.1 mm (2.1 in) | 11.4 mm (0.4 in) | 3 years | 19 of 100 (Routine) |
| 27 July 2025 | Watertown Rgnl AP, US | daily rain | 50.3 mm (2.0 in) | 25.7 mm (1.0 in) | 115 years | 63 of 100 (Major) |
| 16 July 2025 | Watertown Rgnl AP, US | daily low max | 18.3 C (64.9 F) | 1.1 C (2.0 F) | 16 years | 16 of 100 (Routine) |
| 26 June 2025 | Watertown Rgnl AP, US | daily low max | 17.8 C (64.0 F) | 1.1 C (2.0 F) | 120 years | 42 of 100 (Notable) |
| 25 June 2025 | Watertown Rgnl AP, US | daily rain | 34.5 mm (1.4 in) | 6.3 mm (0.25 in) | 24 years | 22 of 100 (Routine) |
| 12 June 2025 | Watertown Rgnl AP, US | daily rain | 37.1 mm (1.5 in) | 0.3 mm (0.01 in) | 116 years | 40 of 100 (Notable) |
Climate Trend
123 complete years, 1898 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1898 | 5.4 C | -0.61 C |
| 1899 | 4.4 C | -1.59 C |
| 1900 | 6.7 C | +0.64 C |
| 1903 | 4.6 C | -1.37 C |
| 1904 | 4.3 C | -1.72 C |
| 1905 | 5.3 C | -0.72 C |
| 1906 | 5.3 C | -0.68 C |
| 1907 | 4.3 C | -1.76 C |
| 1908 | 6.6 C | +0.55 C |
| 1909 | 5.6 C | -0.37 C |
| 1911 | 5.7 C | -0.32 C |
| 1912 | 4.6 C | -1.38 C |
| 1913 | 5.8 C | -0.26 C |
| 1914 | 5.5 C | -0.51 C |
| 1915 | 5.5 C | -0.55 C |
| 1916 | 3.8 C | -2.20 C |
| 1917 | 3.5 C | -2.49 C |
| 1918 | 5.7 C | -0.32 C |
| 1919 | 6.3 C | +0.26 C |
| 1920 | 6.2 C | +0.18 C |
| 1921 | 7.9 C | +1.93 C |
| 1922 | 6.6 C | +0.59 C |
| 1923 | 6.8 C | +0.82 C |
| 1924 | 5.2 C | -0.83 C |
| 1925 | 6.2 C | +0.18 C |
| 1926 | 5.6 C | -0.43 C |
| 1927 | 5.0 C | -0.97 C |
| 1928 | 6.3 C | +0.29 C |
| 1929 | 4.5 C | -1.48 C |
| 1930 | 7.1 C | +1.05 C |
| 1931 | 9.3 C | +3.26 C |
| 1932 | 6.4 C | +0.34 C |
| 1933 | 7.8 C | +1.77 C |
| 1934 | 8.1 C | +2.09 C |
| 1935 | 6.5 C | +0.53 C |
| 1936 | 5.3 C | -0.68 C |
| 1937 | 5.4 C | -0.63 C |
| 1938 | 7.4 C | +1.36 C |
| 1939 | 7.7 C | +1.68 C |
| 1940 | 5.8 C | -0.25 C |
| 1941 | 6.7 C | +0.64 C |
| 1942 | 5.8 C | -0.21 C |
| 1943 | 5.2 C | -0.82 C |
| 1944 | 6.3 C | +0.29 C |
| 1945 | 5.2 C | -0.83 C |
| 1946 | 6.0 C | 0.00 C |
| 1947 | 5.5 C | -0.49 C |
| 1948 | 5.6 C | -0.38 C |
| 1949 | 6.1 C | +0.06 C |
| 1950 | 3.8 C | -2.22 C |
| 1951 | 3.7 C | -2.31 C |
| 1952 | 5.9 C | -0.13 C |
| 1953 | 6.5 C | +0.46 C |
| 1954 | 6.3 C | +0.27 C |
| 1955 | 5.8 C | -0.24 C |
| 1956 | 5.4 C | -0.63 C |
| 1957 | 5.8 C | -0.19 C |
| 1958 | 6.1 C | +0.12 C |
| 1959 | 5.9 C | -0.14 C |
| 1960 | 5.2 C | -0.80 C |
| 1961 | 5.8 C | -0.18 C |
| 1962 | 5.5 C | -0.47 C |
| 1963 | 6.5 C | +0.53 C |
| 1964 | 6.0 C | -0.01 C |
| 1965 | 4.7 C | -1.32 C |
| 1966 | 5.0 C | -1.03 C |
| 1967 | 5.2 C | -0.79 C |
| 1968 | 5.9 C | -0.16 C |
| 1969 | 5.1 C | -0.95 C |
| 1970 | 5.2 C | -0.79 C |
| 1971 | 5.5 C | -0.55 C |
| 1972 | 4.5 C | -1.55 C |
| 1973 | 7.0 C | +0.96 C |
| 1974 | 6.0 C | -0.05 C |
| 1975 | 5.5 C | -0.48 C |
| 1976 | 6.5 C | +0.45 C |
| 1977 | 6.2 C | +0.23 C |
| 1978 | 4.7 C | -1.27 C |
| 1979 | 4.4 C | -1.57 C |
| 1980 | 6.3 C | +0.24 C |
| 1981 | 7.3 C | +1.28 C |
| 1982 | 5.1 C | -0.89 C |
| 1983 | 6.1 C | +0.12 C |
| 1984 | 6.2 C | +0.18 C |
| 1986 | 6.7 C | +0.72 C |
| 1987 | 9.2 C | +3.21 C |
| 1988 | 7.5 C | +1.52 C |
| 1989 | 5.6 C | -0.37 C |
| 1990 | 7.3 C | +1.33 C |
| 1991 | 7.2 C | +1.21 C |
| 1992 | 6.2 C | +0.21 C |
| 1993 | 4.8 C | -1.18 C |
| 1994 | 6.0 C | +0.02 C |
| 1995 | 6.0 C | 0.00 C |
| 1997 | 5.0 C | -0.98 C |
| 1998 | 7.3 C | +1.30 C |
| 1999 | 7.5 C | +1.50 C |
| 2000 | 6.4 C | +0.42 C |
| 2001 | 6.4 C | +0.39 C |
| 2002 | 6.4 C | +0.38 C |
| 2003 | 6.1 C | +0.09 C |
| 2004 | 6.6 C | +0.54 C |
| 2005 | 7.2 C | +1.20 C |
| 2006 | 7.6 C | +1.59 C |
| 2007 | 6.6 C | +0.61 C |
| 2008 | 4.8 C | -1.21 C |
| 2009 | 4.9 C | -1.08 C |
| 2010 | 6.2 C | +0.18 C |
| 2011 | 5.7 C | -0.35 C |
| 2012 | 8.2 C | +2.15 C |
| 2013 | 4.9 C | -1.14 C |
| 2014 | 4.8 C | -1.26 C |
| 2015 | 7.7 C | +1.70 C |
| 2016 | 8.3 C | +2.28 C |
| 2017 | 6.8 C | +0.79 C |
| 2018 | 5.5 C | -0.48 C |
| 2019 | 4.7 C | -1.35 C |
| 2020 | 6.7 C | +0.72 C |
| 2021 | 7.7 C | +1.67 C |
| 2022 | 5.8 C | -0.18 C |
| 2023 | 7.3 C | +1.24 C |
| 2024 | 8.0 C | +2.02 C |
| 2025 | 7.2 C | +1.18 C |
The annual mean temperature here has risen by 0.09 C (0.03 to 0.14) per decade over 1898 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.2) per decade. The slope is a straight line fitted to 123 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.09 C (0.03 to 0.14) per decade | 0.2 F (0.1 to 0.2) per decade | 1898 to 2025 | 123 | Rise |
| Mean daily maximum | 0.01 C (-0.05 to 0.07) per decade | 0.01 F (-0.10 to 0.12) per decade | 1898 to 2025 | 123 | Not clearly different from zero |
| Mean daily minimum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1898 to 2025 | 123 | 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) | 43.3 C (109.9 F) | 1934 | 36.1 C (97.0 F) | 133 |
| Coldest night (TNn) | -40.0 C (-40.0 F) | 1916 | -32.7 C (-26.9 F) | 133 |
| Wettest day (Rx1day) | 181.4 mm (7.1 in) | 1931 | 47.7 mm (1.9 in) | 132 |
| Wettest five days (Rx5day) | 183.2 mm (7.2 in) | 1931 | 72.3 mm (2.8 in) | 132 |
| Longest dry spell (CDD) | 72 days | 1939 | 32 days | 132 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 40.0 C (104.0 F) |
| 1894 | 35.6 C (96.1 F) |
| 1895 | 7.2 C (45.0 F) |
| 1897 | 35.6 C (96.1 F) |
| 1898 | 34.4 C (93.9 F) |
| 1899 | 36.1 C (97.0 F) |
| 1900 | 37.2 C (99.0 F) |
| 1901 | 17.8 C (64.0 F) |
| 1902 | 35.6 C (96.1 F) |
| 1903 | 33.3 C (91.9 F) |
| 1904 | 33.9 C (93.0 F) |
| 1905 | 33.9 C (93.0 F) |
| 1906 | 33.9 C (93.0 F) |
| 1907 | 32.8 C (91.0 F) |
| 1908 | 35.6 C (96.1 F) |
| 1909 | 35.0 C (95.0 F) |
| 1910 | 36.7 C (98.1 F) |
| 1911 | 37.8 C (100.0 F) |
| 1912 | 35.6 C (96.1 F) |
| 1913 | 36.7 C (98.1 F) |
| 1914 | 36.7 C (98.1 F) |
| 1915 | 32.2 C (90.0 F) |
| 1916 | 36.1 C (97.0 F) |
| 1917 | 42.2 C (108.0 F) |
| 1918 | 34.4 C (93.9 F) |
| 1919 | 37.2 C (99.0 F) |
| 1920 | 35.0 C (95.0 F) |
| 1921 | 36.1 C (97.0 F) |
| 1922 | 37.2 C (99.0 F) |
| 1923 | 34.4 C (93.9 F) |
| 1924 | 32.2 C (90.0 F) |
| 1925 | 36.1 C (97.0 F) |
| 1926 | 38.3 C (100.9 F) |
| 1927 | 34.4 C (93.9 F) |
| 1928 | 37.8 C (100.0 F) |
| 1929 | 37.8 C (100.0 F) |
| 1930 | 41.1 C (106.0 F) |
| 1931 | 41.7 C (107.1 F) |
| 1932 | 38.3 C (100.9 F) |
| 1933 | 42.2 C (108.0 F) |
| 1934 | 43.3 C (109.9 F) |
| 1935 | 38.3 C (100.9 F) |
| 1936 | 41.1 C (106.0 F) |
| 1937 | 38.9 C (102.0 F) |
| 1938 | 38.3 C (100.9 F) |
| 1939 | 38.9 C (102.0 F) |
| 1940 | 42.8 C (109.0 F) |
| 1941 | 39.4 C (102.9 F) |
| 1942 | 34.4 C (93.9 F) |
| 1943 | 36.7 C (98.1 F) |
| 1944 | 36.1 C (97.0 F) |
| 1945 | 37.2 C (99.0 F) |
| 1946 | 35.6 C (96.1 F) |
| 1947 | 40.0 C (104.0 F) |
| 1948 | 36.7 C (98.1 F) |
| 1949 | 37.2 C (99.0 F) |
| 1950 | 33.9 C (93.0 F) |
| 1951 | 32.8 C (91.0 F) |
| 1952 | 35.6 C (96.1 F) |
| 1953 | 35.6 C (96.1 F) |
| 1954 | 36.7 C (98.1 F) |
| 1955 | 37.2 C (99.0 F) |
| 1956 | 36.7 C (98.1 F) |
| 1957 | 37.2 C (99.0 F) |
| 1958 | 37.8 C (100.0 F) |
| 1959 | 37.2 C (99.0 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 36.1 C (97.0 F) |
| 1962 | 34.4 C (93.9 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 37.8 C (100.0 F) |
| 1965 | 38.9 C (102.0 F) |
| 1966 | 42.2 C (108.0 F) |
| 1967 | 35.6 C (96.1 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 35.6 C (96.1 F) |
| 1970 | 37.2 C (99.0 F) |
| 1971 | 36.7 C (98.1 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 37.8 C (100.0 F) |
| 1974 | 36.7 C (98.1 F) |
| 1975 | 38.3 C (100.9 F) |
| 1976 | 39.4 C (102.9 F) |
| 1977 | 36.1 C (97.0 F) |
| 1978 | 36.1 C (97.0 F) |
| 1979 | 37.8 C (100.0 F) |
| 1980 | 35.0 C (95.0 F) |
| 1981 | 34.4 C (93.9 F) |
| 1982 | 36.7 C (98.1 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 36.7 C (98.1 F) |
| 1985 | 32.2 C (90.0 F) |
| 1986 | 33.9 C (93.0 F) |
| 1987 | 37.2 C (99.0 F) |
| 1988 | 40.6 C (105.1 F) |
| 1989 | 37.2 C (99.0 F) |
| 1990 | 35.6 C (96.1 F) |
| 1991 | 37.2 C (99.0 F) |
| 1992 | 33.3 C (91.9 F) |
| 1993 | 32.2 C (90.0 F) |
| 1994 | 32.2 C (90.0 F) |
| 1995 | 34.4 C (93.9 F) |
| 1996 | 31.1 C (88.0 F) |
| 1997 | 34.4 C (93.9 F) |
| 1998 | 34.4 C (93.9 F) |
| 1999 | 36.1 C (97.0 F) |
| 2000 | 36.1 C (97.0 F) |
| 2001 | 35.6 C (96.1 F) |
| 2002 | 38.9 C (102.0 F) |
| 2003 | 36.1 C (97.0 F) |
| 2004 | 32.8 C (91.0 F) |
| 2005 | 37.2 C (99.0 F) |
| 2006 | 39.4 C (102.9 F) |
| 2007 | 37.8 C (100.0 F) |
| 2008 | 34.4 C (93.9 F) |
| 2009 | 34.4 C (93.9 F) |
| 2010 | 34.4 C (93.9 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 36.7 C (98.1 F) |
| 2013 | 33.9 C (93.0 F) |
| 2014 | 32.2 C (90.0 F) |
| 2015 | 35.6 C (96.1 F) |
| 2016 | 35.6 C (96.1 F) |
| 2017 | 34.4 C (93.9 F) |
| 2018 | 35.6 C (96.1 F) |
| 2019 | 33.9 C (93.0 F) |
| 2020 | 33.9 C (93.0 F) |
| 2021 | 37.2 C (99.0 F) |
| 2022 | 36.1 C (97.0 F) |
| 2023 | 38.3 C (100.9 F) |
| 2024 | 33.9 C (93.0 F) |
| 2025 | 35.6 C (96.1 F) |
| 2026 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -37.8 C (-36.0 F) |
| 1894 | -36.1 C (-33.0 F) |
| 1895 | -37.2 C (-35.0 F) |
| 1897 | -33.3 C (-27.9 F) |
| 1898 | -31.7 C (-25.1 F) |
| 1899 | -38.9 C (-38.0 F) |
| 1900 | -35.6 C (-32.1 F) |
| 1901 | -25.6 C (-14.1 F) |
| 1902 | -32.2 C (-26.0 F) |
| 1903 | -34.4 C (-29.9 F) |
| 1904 | -37.8 C (-36.0 F) |
| 1905 | -38.9 C (-38.0 F) |
| 1906 | -28.3 C (-18.9 F) |
| 1907 | -33.9 C (-29.0 F) |
| 1908 | -28.9 C (-20.0 F) |
| 1909 | -33.9 C (-29.0 F) |
| 1910 | -29.4 C (-20.9 F) |
| 1911 | -33.3 C (-27.9 F) |
| 1912 | -38.9 C (-38.0 F) |
| 1913 | -30.6 C (-23.1 F) |
| 1914 | -34.4 C (-29.9 F) |
| 1915 | -33.9 C (-29.0 F) |
| 1916 | -40.0 C (-40.0 F) |
| 1917 | -37.2 C (-35.0 F) |
| 1918 | -33.9 C (-29.0 F) |
| 1919 | -34.4 C (-29.9 F) |
| 1920 | -28.9 C (-20.0 F) |
| 1921 | -28.9 C (-20.0 F) |
| 1922 | -32.2 C (-26.0 F) |
| 1923 | -28.9 C (-20.0 F) |
| 1924 | -35.6 C (-32.1 F) |
| 1925 | -30.6 C (-23.1 F) |
| 1926 | -33.9 C (-29.0 F) |
| 1927 | -32.8 C (-27.0 F) |
| 1928 | -35.6 C (-32.1 F) |
| 1929 | -38.9 C (-38.0 F) |
| 1930 | -35.6 C (-32.1 F) |
| 1931 | -26.1 C (-15.0 F) |
| 1932 | -31.1 C (-24.0 F) |
| 1933 | -33.3 C (-27.9 F) |
| 1934 | -28.9 C (-20.0 F) |
| 1935 | -33.9 C (-29.0 F) |
| 1936 | -37.8 C (-36.0 F) |
| 1937 | -30.6 C (-23.1 F) |
| 1938 | -30.0 C (-22.0 F) |
| 1939 | -32.2 C (-26.0 F) |
| 1940 | -33.3 C (-27.9 F) |
| 1941 | -30.6 C (-23.1 F) |
| 1942 | -33.9 C (-29.0 F) |
| 1943 | -36.1 C (-33.0 F) |
| 1944 | -28.9 C (-20.0 F) |
| 1945 | -28.9 C (-20.0 F) |
| 1946 | -28.9 C (-20.0 F) |
| 1947 | -28.9 C (-20.0 F) |
| 1948 | -35.0 C (-31.0 F) |
| 1949 | -32.2 C (-26.0 F) |
| 1950 | -32.8 C (-27.0 F) |
| 1951 | -35.0 C (-31.0 F) |
| 1952 | -33.3 C (-27.9 F) |
| 1953 | -28.9 C (-20.0 F) |
| 1954 | -34.4 C (-29.9 F) |
| 1955 | -33.3 C (-27.9 F) |
| 1956 | -31.7 C (-25.1 F) |
| 1957 | -31.7 C (-25.1 F) |
| 1958 | -33.3 C (-27.9 F) |
| 1959 | -31.1 C (-24.0 F) |
| 1960 | -32.8 C (-27.0 F) |
| 1961 | -33.9 C (-29.0 F) |
| 1962 | -35.0 C (-31.0 F) |
| 1963 | -33.9 C (-29.0 F) |
| 1964 | -30.0 C (-22.0 F) |
| 1965 | -31.7 C (-25.1 F) |
| 1966 | -33.3 C (-27.9 F) |
| 1967 | -36.1 C (-33.0 F) |
| 1968 | -32.2 C (-26.0 F) |
| 1969 | -30.6 C (-23.1 F) |
| 1970 | -36.1 C (-33.0 F) |
| 1971 | -33.3 C (-27.9 F) |
| 1972 | -37.2 C (-35.0 F) |
| 1973 | -34.4 C (-29.9 F) |
| 1974 | -36.1 C (-33.0 F) |
| 1975 | -30.6 C (-23.1 F) |
| 1976 | -31.7 C (-25.1 F) |
| 1977 | -33.9 C (-29.0 F) |
| 1978 | -32.2 C (-26.0 F) |
| 1979 | -33.9 C (-29.0 F) |
| 1980 | -28.9 C (-20.0 F) |
| 1981 | -32.2 C (-26.0 F) |
| 1982 | -34.4 C (-29.9 F) |
| 1983 | -34.4 C (-29.9 F) |
| 1984 | -31.7 C (-25.1 F) |
| 1985 | -35.6 C (-32.1 F) |
| 1986 | -30.6 C (-23.1 F) |
| 1987 | -31.1 C (-24.0 F) |
| 1988 | -34.4 C (-29.9 F) |
| 1989 | -33.9 C (-29.0 F) |
| 1990 | -33.9 C (-29.0 F) |
| 1991 | -28.3 C (-18.9 F) |
| 1992 | -27.2 C (-17.0 F) |
| 1993 | -31.1 C (-24.0 F) |
| 1994 | -37.2 C (-35.0 F) |
| 1995 | -27.2 C (-17.0 F) |
| 1996 | -35.6 C (-32.1 F) |
| 1997 | -31.1 C (-24.0 F) |
| 1998 | -30.6 C (-23.1 F) |
| 1999 | -30.0 C (-22.0 F) |
| 2000 | -28.3 C (-18.9 F) |
| 2001 | -30.6 C (-23.1 F) |
| 2002 | -26.7 C (-16.1 F) |
| 2003 | -29.4 C (-20.9 F) |
| 2004 | -31.1 C (-24.0 F) |
| 2005 | -33.3 C (-27.9 F) |
| 2006 | -25.6 C (-14.1 F) |
| 2007 | -29.4 C (-20.9 F) |
| 2008 | -33.3 C (-27.9 F) |
| 2009 | -36.7 C (-34.1 F) |
| 2010 | -35.0 C (-31.0 F) |
| 2011 | -33.9 C (-29.0 F) |
| 2012 | -25.6 C (-14.1 F) |
| 2013 | -30.5 C (-22.9 F) |
| 2014 | -32.7 C (-26.9 F) |
| 2015 | -27.7 C (-17.9 F) |
| 2016 | -38.2 C (-36.8 F) |
| 2017 | -32.7 C (-26.9 F) |
| 2018 | -31.6 C (-24.9 F) |
| 2019 | -36.6 C (-33.9 F) |
| 2020 | -29.9 C (-21.8 F) |
| 2021 | -32.7 C (-26.9 F) |
| 2022 | -28.8 C (-19.8 F) |
| 2023 | -29.3 C (-20.7 F) |
| 2024 | -28.8 C (-19.8 F) |
| 2025 | -31.0 C (-23.8 F) |
| 2026 | -29.4 C (-20.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 28.4 mm (1.1 in) |
| 1894 | 25.4 mm (1.0 in) |
| 1895 | 15.2 mm (0.6 in) |
| 1897 | 87.6 mm (3.4 in) |
| 1898 | 35.8 mm (1.4 in) |
| 1899 | 55.9 mm (2.2 in) |
| 1900 | 52.1 mm (2.1 in) |
| 1901 | 6.4 mm (0.25 in) |
| 1902 | 28.7 mm (1.1 in) |
| 1903 | 62.7 mm (2.5 in) |
| 1904 | 50.3 mm (2.0 in) |
| 1905 | 86.4 mm (3.4 in) |
| 1906 | 63.5 mm (2.5 in) |
| 1907 | 49.5 mm (1.9 in) |
| 1908 | 36.6 mm (1.4 in) |
| 1909 | 54.6 mm (2.1 in) |
| 1910 | 44.5 mm (1.8 in) |
| 1911 | 40.6 mm (1.6 in) |
| 1912 | 82.6 mm (3.3 in) |
| 1913 | 50.8 mm (2.0 in) |
| 1914 | 51.3 mm (2.0 in) |
| 1915 | 72.4 mm (2.9 in) |
| 1916 | 69.3 mm (2.7 in) |
| 1917 | 38.1 mm (1.5 in) |
| 1918 | 31.8 mm (1.3 in) |
| 1919 | 69.9 mm (2.8 in) |
| 1920 | 31.8 mm (1.3 in) |
| 1921 | 59.7 mm (2.4 in) |
| 1922 | 56.9 mm (2.2 in) |
| 1923 | 61.5 mm (2.4 in) |
| 1924 | 49.5 mm (1.9 in) |
| 1925 | 61.0 mm (2.4 in) |
| 1926 | 38.1 mm (1.5 in) |
| 1927 | 36.1 mm (1.4 in) |
| 1928 | 58.4 mm (2.3 in) |
| 1929 | 30.0 mm (1.2 in) |
| 1930 | 26.9 mm (1.1 in) |
| 1931 | 181.4 mm (7.1 in) |
| 1932 | 41.9 mm (1.6 in) |
| 1933 | 51.3 mm (2.0 in) |
| 1934 | 74.4 mm (2.9 in) |
| 1935 | 32.3 mm (1.3 in) |
| 1936 | 40.1 mm (1.6 in) |
| 1937 | 47.0 mm (1.9 in) |
| 1938 | 40.1 mm (1.6 in) |
| 1939 | 41.9 mm (1.6 in) |
| 1940 | 43.4 mm (1.7 in) |
| 1941 | 41.4 mm (1.6 in) |
| 1942 | 53.1 mm (2.1 in) |
| 1943 | 46.0 mm (1.8 in) |
| 1944 | 28.4 mm (1.1 in) |
| 1945 | 82.8 mm (3.3 in) |
| 1946 | 36.8 mm (1.4 in) |
| 1947 | 26.4 mm (1.0 in) |
| 1948 | 71.4 mm (2.8 in) |
| 1949 | 42.9 mm (1.7 in) |
| 1950 | 71.1 mm (2.8 in) |
| 1951 | 43.4 mm (1.7 in) |
| 1952 | 46.2 mm (1.8 in) |
| 1953 | 81.0 mm (3.2 in) |
| 1954 | 44.5 mm (1.8 in) |
| 1955 | 48.3 mm (1.9 in) |
| 1956 | 66.3 mm (2.6 in) |
| 1957 | 50.8 mm (2.0 in) |
| 1958 | 35.6 mm (1.4 in) |
| 1959 | 50.8 mm (2.0 in) |
| 1960 | 37.3 mm (1.5 in) |
| 1961 | 34.8 mm (1.4 in) |
| 1962 | 38.6 mm (1.5 in) |
| 1963 | 68.3 mm (2.7 in) |
| 1964 | 50.8 mm (2.0 in) |
| 1965 | 44.5 mm (1.8 in) |
| 1966 | 60.5 mm (2.4 in) |
| 1967 | 30.0 mm (1.2 in) |
| 1968 | 34.5 mm (1.4 in) |
| 1969 | 56.4 mm (2.2 in) |
| 1970 | 65.3 mm (2.6 in) |
| 1971 | 94.5 mm (3.7 in) |
| 1972 | 63.0 mm (2.5 in) |
| 1973 | 41.1 mm (1.6 in) |
| 1974 | 42.2 mm (1.7 in) |
| 1975 | 34.0 mm (1.3 in) |
| 1976 | 37.3 mm (1.5 in) |
| 1977 | 110.5 mm (4.4 in) |
| 1978 | 39.4 mm (1.6 in) |
| 1979 | 53.3 mm (2.1 in) |
| 1980 | 67.6 mm (2.7 in) |
| 1981 | 45.5 mm (1.8 in) |
| 1982 | 38.4 mm (1.5 in) |
| 1983 | 29.2 mm (1.1 in) |
| 1984 | 45.2 mm (1.8 in) |
| 1985 | 61.5 mm (2.4 in) |
| 1986 | 50.5 mm (2.0 in) |
| 1987 | 79.8 mm (3.1 in) |
| 1988 | 46.0 mm (1.8 in) |
| 1989 | 32.5 mm (1.3 in) |
| 1990 | 55.6 mm (2.2 in) |
| 1991 | 64.3 mm (2.5 in) |
| 1992 | 38.4 mm (1.5 in) |
| 1993 | 55.9 mm (2.2 in) |
| 1994 | 85.6 mm (3.4 in) |
| 1995 | 42.7 mm (1.7 in) |
| 1996 | 12.2 mm (0.5 in) |
| 1997 | n/a |
| 1998 | 64.8 mm (2.6 in) |
| 1999 | 26.9 mm (1.1 in) |
| 2000 | 28.2 mm (1.1 in) |
| 2001 | 38.9 mm (1.5 in) |
| 2002 | 109.7 mm (4.3 in) |
| 2003 | 46.5 mm (1.8 in) |
| 2004 | 52.8 mm (2.1 in) |
| 2005 | 40.6 mm (1.6 in) |
| 2006 | 72.9 mm (2.9 in) |
| 2007 | 58.9 mm (2.3 in) |
| 2008 | 52.1 mm (2.1 in) |
| 2009 | 37.3 mm (1.5 in) |
| 2010 | 65.0 mm (2.6 in) |
| 2011 | 40.1 mm (1.6 in) |
| 2012 | 78.7 mm (3.1 in) |
| 2013 | 65.5 mm (2.6 in) |
| 2014 | 42.4 mm (1.7 in) |
| 2015 | 78.2 mm (3.1 in) |
| 2016 | 99.1 mm (3.9 in) |
| 2017 | 56.1 mm (2.2 in) |
| 2018 | 46.7 mm (1.8 in) |
| 2019 | 45.7 mm (1.8 in) |
| 2020 | 35.8 mm (1.4 in) |
| 2021 | 56.6 mm (2.2 in) |
| 2022 | 54.9 mm (2.2 in) |
| 2023 | 53.3 mm (2.1 in) |
| 2024 | 47.0 mm (1.9 in) |
| 2025 | 53.1 mm (2.1 in) |
| 2026 | 36.1 mm (1.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 35.2 mm (1.4 in) |
| 1894 | 34.3 mm (1.4 in) |
| 1895 | 22.8 mm (0.9 in) |
| 1897 | 107.4 mm (4.2 in) |
| 1898 | 75.7 mm (3.0 in) |
| 1899 | 75.6 mm (3.0 in) |
| 1900 | 97.2 mm (3.8 in) |
| 1901 | 7.7 mm (0.30 in) |
| 1902 | 36.3 mm (1.4 in) |
| 1903 | 86.3 mm (3.4 in) |
| 1904 | 81.5 mm (3.2 in) |
| 1905 | 110.0 mm (4.3 in) |
| 1906 | 79.5 mm (3.1 in) |
| 1907 | 52.0 mm (2.0 in) |
| 1908 | 74.9 mm (2.9 in) |
| 1909 | 85.9 mm (3.4 in) |
| 1910 | 69.9 mm (2.8 in) |
| 1911 | 58.4 mm (2.3 in) |
| 1912 | 87.7 mm (3.5 in) |
| 1913 | 72.4 mm (2.9 in) |
| 1914 | 128.6 mm (5.1 in) |
| 1915 | 81.0 mm (3.2 in) |
| 1916 | 112.4 mm (4.4 in) |
| 1917 | 51.5 mm (2.0 in) |
| 1918 | 59.7 mm (2.4 in) |
| 1919 | 85.8 mm (3.4 in) |
| 1920 | 63.2 mm (2.5 in) |
| 1921 | 94.8 mm (3.7 in) |
| 1922 | 56.9 mm (2.2 in) |
| 1923 | 73.7 mm (2.9 in) |
| 1924 | 73.0 mm (2.9 in) |
| 1925 | 61.0 mm (2.4 in) |
| 1926 | 48.8 mm (1.9 in) |
| 1927 | 62.0 mm (2.4 in) |
| 1928 | 71.9 mm (2.8 in) |
| 1929 | 44.3 mm (1.7 in) |
| 1930 | 55.6 mm (2.2 in) |
| 1931 | 183.2 mm (7.2 in) |
| 1932 | 69.6 mm (2.7 in) |
| 1933 | 51.6 mm (2.0 in) |
| 1934 | 79.5 mm (3.1 in) |
| 1935 | 55.9 mm (2.2 in) |
| 1936 | 49.0 mm (1.9 in) |
| 1937 | 49.5 mm (1.9 in) |
| 1938 | 57.6 mm (2.3 in) |
| 1939 | 84.9 mm (3.3 in) |
| 1940 | 88.4 mm (3.5 in) |
| 1941 | 43.2 mm (1.7 in) |
| 1942 | 87.1 mm (3.4 in) |
| 1943 | 88.5 mm (3.5 in) |
| 1944 | 51.4 mm (2.0 in) |
| 1945 | 99.8 mm (3.9 in) |
| 1946 | 82.5 mm (3.2 in) |
| 1947 | 42.1 mm (1.7 in) |
| 1948 | 87.9 mm (3.5 in) |
| 1949 | 71.8 mm (2.8 in) |
| 1950 | 89.4 mm (3.5 in) |
| 1951 | 94.0 mm (3.7 in) |
| 1952 | 83.4 mm (3.3 in) |
| 1953 | 163.3 mm (6.4 in) |
| 1954 | 65.9 mm (2.6 in) |
| 1955 | 62.2 mm (2.4 in) |
| 1956 | 121.1 mm (4.8 in) |
| 1957 | 61.7 mm (2.4 in) |
| 1958 | 45.1 mm (1.8 in) |
| 1959 | 63.6 mm (2.5 in) |
| 1960 | 85.6 mm (3.4 in) |
| 1961 | 81.0 mm (3.2 in) |
| 1962 | 125.9 mm (5.0 in) |
| 1963 | 125.5 mm (4.9 in) |
| 1964 | 68.8 mm (2.7 in) |
| 1965 | 94.6 mm (3.7 in) |
| 1966 | 87.7 mm (3.5 in) |
| 1967 | 81.5 mm (3.2 in) |
| 1968 | 66.6 mm (2.6 in) |
| 1969 | 77.0 mm (3.0 in) |
| 1970 | 88.4 mm (3.5 in) |
| 1971 | 127.8 mm (5.0 in) |
| 1972 | 81.5 mm (3.2 in) |
| 1973 | 51.3 mm (2.0 in) |
| 1974 | 90.7 mm (3.6 in) |
| 1975 | 66.3 mm (2.6 in) |
| 1976 | 38.1 mm (1.5 in) |
| 1977 | 174.8 mm (6.9 in) |
| 1978 | 62.2 mm (2.4 in) |
| 1979 | 99.3 mm (3.9 in) |
| 1980 | 107.9 mm (4.2 in) |
| 1981 | 68.9 mm (2.7 in) |
| 1982 | 49.6 mm (2.0 in) |
| 1983 | 46.4 mm (1.8 in) |
| 1984 | 90.5 mm (3.6 in) |
| 1985 | 70.6 mm (2.8 in) |
| 1986 | 73.7 mm (2.9 in) |
| 1987 | 81.1 mm (3.2 in) |
| 1988 | 51.1 mm (2.0 in) |
| 1989 | 49.3 mm (1.9 in) |
| 1990 | 104.9 mm (4.1 in) |
| 1991 | 162.1 mm (6.4 in) |
| 1992 | 108.2 mm (4.3 in) |
| 1993 | 59.7 mm (2.4 in) |
| 1994 | 105.2 mm (4.1 in) |
| 1995 | 63.7 mm (2.5 in) |
| 1996 | 15.2 mm (0.6 in) |
| 1997 | n/a |
| 1998 | 66.1 mm (2.6 in) |
| 1999 | 65.8 mm (2.6 in) |
| 2000 | 52.6 mm (2.1 in) |
| 2001 | 61.5 mm (2.4 in) |
| 2002 | 111.7 mm (4.4 in) |
| 2003 | 56.4 mm (2.2 in) |
| 2004 | 73.4 mm (2.9 in) |
| 2005 | 66.3 mm (2.6 in) |
| 2006 | 81.5 mm (3.2 in) |
| 2007 | 67.6 mm (2.7 in) |
| 2008 | 100.6 mm (4.0 in) |
| 2009 | 70.6 mm (2.8 in) |
| 2010 | 71.9 mm (2.8 in) |
| 2011 | 57.7 mm (2.3 in) |
| 2012 | 106.3 mm (4.2 in) |
| 2013 | 91.7 mm (3.6 in) |
| 2014 | 55.4 mm (2.2 in) |
| 2015 | 84.6 mm (3.3 in) |
| 2016 | 141.0 mm (5.6 in) |
| 2017 | 114.3 mm (4.5 in) |
| 2018 | 52.1 mm (2.1 in) |
| 2019 | 89.5 mm (3.5 in) |
| 2020 | 51.1 mm (2.0 in) |
| 2021 | 77.4 mm (3.0 in) |
| 2022 | 56.2 mm (2.2 in) |
| 2023 | 66.5 mm (2.6 in) |
| 2024 | 62.4 mm (2.5 in) |
| 2025 | 72.1 mm (2.8 in) |
| 2026 | 64.3 mm (2.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 27 days |
| 1894 | 61 days |
| 1895 | 14 days |
| 1897 | 29 days |
| 1898 | 40 days |
| 1899 | 25 days |
| 1900 | 29 days |
| 1901 | 29 days |
| 1902 | 25 days |
| 1903 | 24 days |
| 1904 | 44 days |
| 1905 | 33 days |
| 1906 | 25 days |
| 1907 | 33 days |
| 1908 | 29 days |
| 1909 | 37 days |
| 1910 | 59 days |
| 1911 | 40 days |
| 1912 | 53 days |
| 1913 | 34 days |
| 1914 | 55 days |
| 1915 | 30 days |
| 1916 | 52 days |
| 1917 | 37 days |
| 1918 | 31 days |
| 1919 | 32 days |
| 1920 | 25 days |
| 1921 | 47 days |
| 1922 | 30 days |
| 1923 | 36 days |
| 1924 | 28 days |
| 1925 | 29 days |
| 1926 | 24 days |
| 1927 | 23 days |
| 1928 | 65 days |
| 1929 | 17 days |
| 1930 | 38 days |
| 1931 | 42 days |
| 1932 | 43 days |
| 1933 | 57 days |
| 1934 | 56 days |
| 1935 | 24 days |
| 1936 | 23 days |
| 1937 | 35 days |
| 1938 | 22 days |
| 1939 | 72 days |
| 1940 | 24 days |
| 1941 | 37 days |
| 1942 | 70 days |
| 1943 | 53 days |
| 1944 | 35 days |
| 1945 | 29 days |
| 1946 | 30 days |
| 1947 | 34 days |
| 1948 | 28 days |
| 1949 | 58 days |
| 1950 | 41 days |
| 1951 | 20 days |
| 1952 | 56 days |
| 1953 | 26 days |
| 1954 | 31 days |
| 1955 | 30 days |
| 1956 | 34 days |
| 1957 | 33 days |
| 1958 | 43 days |
| 1959 | 39 days |
| 1960 | 35 days |
| 1961 | 35 days |
| 1962 | 38 days |
| 1963 | 27 days |
| 1964 | 38 days |
| 1965 | 24 days |
| 1966 | 23 days |
| 1967 | 25 days |
| 1968 | 40 days |
| 1969 | 18 days |
| 1970 | 24 days |
| 1971 | 31 days |
| 1972 | 23 days |
| 1973 | 38 days |
| 1974 | 30 days |
| 1975 | 31 days |
| 1976 | 33 days |
| 1977 | 27 days |
| 1978 | 27 days |
| 1979 | 24 days |
| 1980 | 48 days |
| 1981 | 31 days |
| 1982 | 34 days |
| 1983 | 17 days |
| 1984 | 27 days |
| 1985 | 23 days |
| 1986 | 42 days |
| 1987 | 27 days |
| 1988 | 40 days |
| 1989 | 47 days |
| 1990 | 55 days |
| 1991 | 48 days |
| 1992 | 38 days |
| 1993 | 23 days |
| 1994 | 32 days |
| 1995 | 28 days |
| 1996 | 25 days |
| 1997 | n/a |
| 1998 | 32 days |
| 1999 | 40 days |
| 2000 | 23 days |
| 2001 | 30 days |
| 2002 | 35 days |
| 2003 | 27 days |
| 2004 | 25 days |
| 2005 | 30 days |
| 2006 | 41 days |
| 2007 | 40 days |
| 2008 | 43 days |
| 2009 | 26 days |
| 2010 | 36 days |
| 2011 | 39 days |
| 2012 | 29 days |
| 2013 | 46 days |
| 2014 | 29 days |
| 2015 | 27 days |
| 2016 | 25 days |
| 2017 | 30 days |
| 2018 | 33 days |
| 2019 | 27 days |
| 2020 | 43 days |
| 2021 | 28 days |
| 2022 | 35 days |
| 2023 | 26 days |
| 2024 | 41 days |
| 2025 | 38 days |
| 2026 | 26 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
123 years with a frostAcross 123 years with a frost, the median last spring frost at Watertown Rgnl AP falls on 14 May and the median first autumn frost on 25 September, which leaves a median of 136 days between them.
In 1995 to 2025 the median growing season was 148 days. That is 26 days more than in 1898 to 1930.
Fitted over all years, the growing season changes by +2.1 days per decade at this station.
| Measure | Median, all years | Earliest period (1898 to 1930) | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 14 May | 21 May | 7 May | 14 days earlier | -1.5 days per decade |
| First autumn frost | 25 September | 24 September | 30 September | 6 days later | +0.6 days per decade |
| Growing days | 136 days | 122 days | 148 days | 26 days more | +2.1 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
119 years, 1898 to 2025A day with at least 48.7 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 126.3 mm (5.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 48.7 mm (1.9 in) | |
| 5 years | 65.5 mm (2.6 in) | |
| 10 years | 78.1 mm (3.1 in) | |
| 25 years | 95.8 mm (3.8 in) | |
| 50 years | 110.4 mm (4.3 in) | |
| 100 years | 126.3 mm (5.0 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 119 years of values from 1898 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: 181.4 mm (7.1 in) in 1931; 110.5 mm (4.4 in) in 1977; 109.7 mm (4.3 in) in 2002.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Watertown Rgnl AP had a mean temperature of 6.6 C (43.9 F) and 581.7 mm (22.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Flandreau (United States, 105 km away), Tyler (United States, 107 km away) and Worthington 2 NNE (United States, 188 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Flandreau | United States | 105 km (65 mi) | 6.5 C (43.6 F) | 547.9 mm (21.6 in) | 0.88 |
| Tyler | United States | 107 km (66 mi) | 6.5 C (43.8 F) | 614.0 mm (24.2 in) | 0.89 |
| Worthington 2 NNE | United States | 188 km (117 mi) | 6.4 C (43.5 F) | 677.1 mm (26.7 in) | 1.06 |
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).