Choteau Weather Records (USC00241737)
Record envelope, standing records and threshold days for Choteau (USC00241737), Montana, United States, with 134 years of record.
Key Facts for Choteau
- Choteau (USC00241737) is a weather station in Montana, United States at 47.82 latitude and -112.19 longitude, 1,172 m (3,845 ft) above sea level.
- The station reports from 1893 to 2026, 134 years of record.
- 1,464 records set at Choteau still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Choteau set a daily record snowfall of 6.4 cm (2.5 in) on 12 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Montana, United States, 47.82 latitude, -112.19 longitude.
- Elevation: 1,172 m (3,845 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 | 26.1 C (79.0 F) | -42.2 C (-44.0 F) | 18.9 C (66.0 F) | -21.1 C (-6.0 F) |
| Feb | 22.8 C (73.0 F) | -45.6 C (-50.1 F) | 22.2 C (72.0 F) | -27.8 C (-18.0 F) |
| Mar | 27.8 C (82.0 F) | -37.8 C (-36.0 F) | 22.8 C (73.0 F) | -20.0 C (-4.0 F) |
| Apr | 30.0 C (86.0 F) | -26.7 C (-16.1 F) | 26.1 C (79.0 F) | -10.0 C (14.0 F) |
| May | 33.3 C (91.9 F) | -13.3 C (8.1 F) | 30.6 C (87.1 F) | -5.0 C (23.0 F) |
| Jun | 36.7 C (98.1 F) | -2.2 C (28.0 F) | 27.8 C (82.0 F) | 1.1 C (34.0 F) |
| Jul | 40.6 C (105.1 F) | -2.2 C (28.0 F) | 36.1 C (97.0 F) | 6.1 C (43.0 F) |
| Aug | 41.1 C (106.0 F) | -2.2 C (28.0 F) | 36.1 C (97.0 F) | 2.8 C (37.0 F) |
| Sep | 35.6 C (96.1 F) | -20.6 C (-5.1 F) | 28.9 C (84.0 F) | -2.8 C (27.0 F) |
| Oct | 32.2 C (90.0 F) | -26.1 C (-15.0 F) | 27.2 C (81.0 F) | -2.2 C (28.0 F) |
| Nov | 26.7 C (80.1 F) | -34.4 C (-29.9 F) | n/a | n/a |
| Dec | 22.2 C (72.0 F) | -41.7 C (-43.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 37 |
| 1894 | 20 |
| 1895 | 18 |
| 1896 | 25 |
| 1897 | 20 |
| 1898 | 8 |
| 1905 | 23 |
| 1906 | 18 |
| 1907 | 16 |
| 1908 | 4 |
| 1909 | 22 |
| 1910 | 11 |
| 1911 | 5 |
| 1918 | 17 |
| 1919 | 27 |
| 1920 | 9 |
| 1921 | 9 |
| 1922 | 12 |
| 1923 | 8 |
| 1924 | 18 |
| 1925 | 15 |
| 1926 | 10 |
| 1927 | 9 |
| 1928 | 13 |
| 1929 | 17 |
| 1930 | 16 |
| 1931 | 7 |
| 1932 | 17 |
| 1933 | 14 |
| 1934 | 16 |
| 1935 | 16 |
| 1936 | 38 |
| 1937 | 8 |
| 1938 | 7 |
| 1939 | 13 |
| 1940 | 6 |
| 1941 | 4 |
| 1942 | 3 |
| 1943 | 22 |
| 1944 | 7 |
| 1945 | 3 |
| 1946 | 7 |
| 1947 | 7 |
| 1948 | 3 |
| 1949 | 12 |
| 1950 | 12 |
| 1951 | 20 |
| 1952 | 7 |
| 1953 | 3 |
| 1954 | 21 |
| 1955 | 18 |
| 1956 | 15 |
| 1957 | 8 |
| 1958 | 7 |
| 1959 | 7 |
| 1960 | 10 |
| 1961 | 11 |
| 1962 | 10 |
| 1963 | 4 |
| 1964 | 5 |
| 1965 | 15 |
| 1966 | 8 |
| 1967 | 13 |
| 1968 | 16 |
| 1969 | 13 |
| 1970 | 3 |
| 1971 | 7 |
| 1972 | 19 |
| 1973 | 12 |
| 1974 | 7 |
| 1975 | 15 |
| 1976 | 5 |
| 1977 | 6 |
| 1978 | 3 |
| 1979 | 9 |
| 1980 | 18 |
| 1981 | 15 |
| 1982 | 7 |
| 1983 | 14 |
| 1984 | 10 |
| 1985 | 29 |
| 1986 | 18 |
| 1987 | 27 |
| 1988 | 12 |
| 1989 | 5 |
| 1990 | 11 |
| 1991 | 13 |
| 1992 | 27 |
| 1993 | 7 |
| 1994 | 12 |
| 1995 | 8 |
| 1996 | 6 |
| 1997 | 6 |
| 1999 | 15 |
| 2000 | 10 |
| 2001 | 5 |
| 2002 | 16 |
| 2003 | 9 |
| 2004 | 5 |
| 2005 | 13 |
| 2006 | 6 |
| 2007 | 7 |
| 2008 | 16 |
| 2009 | 16 |
| 2010 | 11 |
| 2011 | 6 |
| 2012 | 8 |
| 2013 | 8 |
| 2014 | 6 |
| 2015 | 12 |
| 2016 | 9 |
| 2017 | 8 |
| 2018 | 1 |
| 2019 | 12 |
| 2020 | 18 |
| 2021 | 18 |
| 2022 | 27 |
| 2023 | 10 |
| 2024 | 7 |
| 2025 | 2 |
| 2026 | 12 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1946-12-11 | Record daily snowfall | Record daily snowfall 35.6 cm (14.0 in) |
| 1964-06-08 | Record daily precipitation | Record daily precipitation 104.1 mm (4.1 in) |
| 2018-02-18 | Record snow depth | Record snow depth 61.0 cm (24.0 in) |
| 2018-03-04 | Record snow depth | Record snow depth 66.0 cm (26.0 in) |
Wettest Day of Each Month
Jun: 104.1 mm (4.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 30.5 mm (1.2 in) | 30 January 1893 |
| Feb | 30.5 mm (1.2 in) | 16 February 1897 |
| Mar | 26.7 mm (1.1 in) | 30 March 1981 |
| Apr | 35.6 mm (1.4 in) | 10 April 2019 |
| May | 62.2 mm (2.4 in) | 25 May 1953 |
| Jun | 104.1 mm (4.1 in) | 8 June 1964 |
| Jul | 58.4 mm (2.3 in) | 27 July 1909 |
| Aug | 62.7 mm (2.5 in) | 21 August 1933 |
| Sep | 53.8 mm (2.1 in) | 20 September 1968 |
| Oct | 34.0 mm (1.3 in) | 8 October 1923 |
| Nov | 31.5 mm (1.2 in) | 5 November 1927 |
| Dec | 15.2 mm (0.6 in) | 16 December 1895 |
Period of Record Coverage
1893 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 360 | 99% | Yes |
| 1894 | 326 | 89% | No |
| 1895 | 352 | 96% | Yes |
| 1896 | 347 | 95% | Yes |
| 1897 | 348 | 95% | Yes |
| 1898 | 105 | 29% | No |
| 1905 | 327 | 90% | No |
| 1906 | 356 | 98% | Yes |
| 1907 | 299 | 82% | No |
| 1908 | 118 | 32% | No |
| 1909 | 347 | 95% | Yes |
| 1910 | 76 | 21% | No |
| 1911 | 81 | 22% | No |
| 1918 | 325 | 89% | No |
| 1919 | 336 | 92% | Yes |
| 1920 | 275 | 75% | No |
| 1921 | 188 | 52% | No |
| 1922 | 351 | 96% | Yes |
| 1923 | 347 | 95% | Yes |
| 1924 | 342 | 93% | Yes |
| 1925 | 329 | 90% | Yes |
| 1926 | 354 | 97% | Yes |
| 1927 | 323 | 88% | No |
| 1928 | 357 | 98% | Yes |
| 1929 | 342 | 94% | Yes |
| 1930 | 333 | 91% | Yes |
| 1931 | 288 | 79% | No |
| 1932 | 339 | 93% | Yes |
| 1933 | 352 | 96% | Yes |
| 1934 | 265 | 73% | No |
| 1935 | 311 | 85% | No |
| 1936 | 330 | 90% | Yes |
| 1937 | 348 | 95% | Yes |
| 1938 | 359 | 98% | Yes |
| 1939 | 363 | 99% | Yes |
| 1940 | 354 | 97% | Yes |
| 1941 | 357 | 98% | Yes |
| 1942 | 349 | 96% | Yes |
| 1943 | 350 | 96% | Yes |
| 1944 | 352 | 96% | Yes |
| 1945 | 360 | 99% | Yes |
| 1946 | 363 | 99% | Yes |
| 1947 | 362 | 99% | Yes |
| 1948 | 355 | 97% | Yes |
| 1949 | 361 | 99% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 363 | 99% | Yes |
| 1956 | 358 | 98% | Yes |
| 1957 | 360 | 99% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 358 | 98% | Yes |
| 1962 | 361 | 99% | Yes |
| 1963 | 363 | 99% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 361 | 99% | Yes |
| 1970 | 362 | 99% | Yes |
| 1971 | 361 | 99% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 361 | 99% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 363 | 99% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 363 | 99% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 357 | 98% | Yes |
| 1984 | 363 | 99% | Yes |
| 1985 | 363 | 99% | Yes |
| 1986 | 360 | 99% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 362 | 99% | Yes |
| 1989 | 360 | 99% | Yes |
| 1990 | 350 | 96% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 363 | 99% | Yes |
| 1995 | 255 | 70% | No |
| 1996 | 85 | 23% | No |
| 1997 | 259 | 71% | No |
| 1998 | 324 | 89% | No |
| 1999 | 311 | 85% | No |
| 2000 | 308 | 84% | No |
| 2001 | 318 | 87% | No |
| 2002 | 311 | 85% | No |
| 2003 | 313 | 86% | No |
| 2004 | 340 | 93% | Yes |
| 2005 | 361 | 99% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 364 | 100% | Yes |
| 2008 | 360 | 98% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 363 | 99% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 364 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 284 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 October 2026 | Choteau, US | daily snowfall (Provisional) | 6.4 cm (2.5 in) | 3.9 cm (1.5 in) | 56 years | 33 of 100 (Routine) |
| 12 October 2026 | Choteau, US | daily snow depth (Provisional) | 25.4 cm (10.0 in) | 15.2 cm (6.0 in) | 9 years | 29 of 100 (Routine) |
| 11 October 2026 | Choteau, US | daily snowfall (Provisional) | 14.0 cm (5.5 in) | 8.9 cm (3.5 in) | 100 years | 57 of 100 (Notable) |
| 9 October 2026 | Choteau, US | daily high min (Tie, Provisional) | 12.8 C (55.0 F) | tie | 49 years | 6 of 100 (Routine) |
| 7 September 2026 | Choteau, US | daily rain (Provisional) | 18.3 mm (0.7 in) | 2.0 mm (0.08 in) | 5 years | 14 of 100 (Routine) |
| 6 September 2026 | Choteau, US | daily rain (Provisional) | 19.1 mm (0.8 in) | 2.6 mm (0.10 in) | 12 years | 16 of 100 (Routine) |
| 16 June 2026 | Choteau, US | daily high min | 16.7 C (62.1 F) | 0.6 C (1.1 F) | 37 years | 22 of 100 (Routine) |
| 1 June 2026 | Choteau, US | daily low max | 8.3 C (46.9 F) | 2.3 C (4.1 F) | 75 years | 36 of 100 (Notable) |
| 1 June 2026 | Choteau, US | daily rain | 25.1 mm (1.0 in) | 0.7 mm (0.03 in) | 68 years | 30 of 100 (Routine) |
| 18 May 2026 | Choteau, US | daily low min | -3.3 C (26.1 F) | 0.5 C (0.9 F) | 60 years | 29 of 100 (Routine) |
| 13 May 2026 | Choteau, US | daily high max (Tie) | 29.4 C (84.9 F) | tie | 131 years | 10 of 100 (Routine) |
| 20 March 2026 | Choteau, US | daily high min | 9.4 C (48.9 F) | 3.8 C (6.8 F) | 95 years | 43 of 100 (Notable) |
| 19 March 2026 | Choteau, US | daily high min | 12.2 C (54.0 F) | 6.1 C (11.0 F) | 37 years | 29 of 100 (Routine) |
| 14 March 2026 | Choteau, US | daily rain | 11.4 mm (0.4 in) | 0.7 mm (0.03 in) | 5 years | 13 of 100 (Routine) |
| 13 March 2026 | Choteau, US | daily rain | 14.0 mm (0.6 in) | 1.3 mm (0.05 in) | 129 years | 20 of 100 (Routine) |
| 13 March 2026 | Choteau, US | daily snowfall | 16.3 cm (6.4 in) | 2.3 cm (0.9 in) | 5 years | 16 of 100 (Routine) |
| 8 March 2026 | Choteau, US | daily high min | 8.3 C (46.9 F) | 4.4 C (7.9 F) | 72 years | 37 of 100 (Notable) |
| 7 February 2026 | Choteau, US | daily high min (Tie) | 5.0 C (41.0 F) | tie | 39 years | 5 of 100 (Routine) |
| 6 February 2026 | Choteau, US | daily high max | 20.6 C (69.1 F) | 1.2 C (2.2 F) | 63 years | 29 of 100 (Routine) |
| 5 February 2026 | Choteau, US | daily high max | 22.2 C (72.0 F) | 3.3 C (5.9 F) | 84 years | 38 of 100 (Notable) |
Climate Trend
100 complete years, 1893 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1893 | 5.7 C | -1.01 C |
| 1895 | 6.1 C | -0.59 C |
| 1896 | 5.3 C | -1.38 C |
| 1897 | 6.0 C | -0.69 C |
| 1906 | 6.5 C | -0.15 C |
| 1909 | 4.9 C | -1.78 C |
| 1923 | 5.9 C | -0.78 C |
| 1924 | 5.0 C | -1.65 C |
| 1925 | 6.4 C | -0.30 C |
| 1926 | 5.2 C | -1.50 C |
| 1928 | 5.1 C | -1.55 C |
| 1929 | 4.7 C | -1.95 C |
| 1930 | 7.1 C | +0.41 C |
| 1933 | 5.6 C | -1.10 C |
| 1935 | 5.7 C | -0.98 C |
| 1936 | 5.7 C | -0.93 C |
| 1937 | 5.6 C | -1.05 C |
| 1938 | 6.9 C | +0.28 C |
| 1939 | 7.9 C | +1.21 C |
| 1940 | 7.0 C | +0.29 C |
| 1941 | 7.1 C | +0.44 C |
| 1942 | 6.5 C | -0.18 C |
| 1943 | 6.2 C | -0.47 C |
| 1944 | 6.6 C | -0.02 C |
| 1945 | 6.4 C | -0.24 C |
| 1946 | 7.1 C | +0.46 C |
| 1947 | 6.9 C | +0.24 C |
| 1948 | 6.0 C | -0.63 C |
| 1949 | 6.0 C | -0.66 C |
| 1950 | 4.9 C | -1.80 C |
| 1951 | 4.0 C | -2.70 C |
| 1952 | 6.6 C | -0.05 C |
| 1953 | 7.8 C | +1.16 C |
| 1954 | 6.3 C | -0.33 C |
| 1955 | 4.9 C | -1.75 C |
| 1956 | 7.0 C | +0.34 C |
| 1957 | 6.4 C | -0.23 C |
| 1958 | 7.5 C | +0.80 C |
| 1959 | 6.4 C | -0.25 C |
| 1960 | 6.8 C | +0.17 C |
| 1962 | 7.0 C | +0.32 C |
| 1963 | 7.5 C | +0.83 C |
| 1964 | 6.2 C | -0.50 C |
| 1965 | 5.9 C | -0.81 C |
| 1966 | 6.8 C | +0.18 C |
| 1967 | 6.9 C | +0.23 C |
| 1968 | 6.4 C | -0.23 C |
| 1969 | 5.9 C | -0.81 C |
| 1970 | 6.5 C | -0.14 C |
| 1971 | 6.5 C | -0.21 C |
| 1972 | 6.0 C | -0.65 C |
| 1973 | 7.8 C | +1.17 C |
| 1974 | 8.0 C | +1.35 C |
| 1975 | 5.8 C | -0.82 C |
| 1976 | 8.6 C | +1.89 C |
| 1977 | 7.3 C | +0.61 C |
| 1978 | 5.6 C | -1.08 C |
| 1979 | 7.1 C | +0.39 C |
| 1980 | 7.5 C | +0.80 C |
| 1981 | 8.8 C | +2.17 C |
| 1982 | 5.7 C | -0.95 C |
| 1983 | 7.4 C | +0.74 C |
| 1984 | 7.6 C | +0.94 C |
| 1985 | 6.3 C | -0.41 C |
| 1986 | 8.6 C | +1.90 C |
| 1987 | 9.6 C | +2.95 C |
| 1988 | 8.8 C | +2.14 C |
| 1989 | 6.8 C | +0.14 C |
| 1991 | 8.5 C | +1.83 C |
| 1992 | 8.9 C | +2.23 C |
| 1993 | 6.8 C | +0.12 C |
| 1994 | 8.5 C | +1.88 C |
| 1998 | 7.0 C | +0.34 C |
| 1999 | 7.5 C | +0.87 C |
| 2000 | 6.3 C | -0.40 C |
| 2001 | 7.1 C | +0.42 C |
| 2002 | 5.7 C | -0.96 C |
| 2003 | 7.1 C | +0.42 C |
| 2004 | 6.9 C | +0.25 C |
| 2005 | 6.7 C | +0.06 C |
| 2006 | 7.2 C | +0.56 C |
| 2007 | 7.4 C | +0.73 C |
| 2008 | 6.3 C | -0.38 C |
| 2009 | 5.9 C | -0.72 C |
| 2010 | 5.9 C | -0.73 C |
| 2011 | 6.0 C | -0.65 C |
| 2012 | 7.4 C | +0.78 C |
| 2013 | 7.0 C | +0.36 C |
| 2014 | 6.3 C | -0.39 C |
| 2015 | 7.9 C | +1.24 C |
| 2016 | 7.7 C | +1.02 C |
| 2017 | 6.4 C | -0.24 C |
| 2018 | 5.8 C | -0.89 C |
| 2019 | 4.8 C | -1.83 C |
| 2020 | 7.1 C | +0.45 C |
| 2021 | 6.9 C | +0.26 C |
| 2022 | 6.5 C | -0.12 C |
| 2023 | 7.8 C | +1.09 C |
| 2024 | 7.2 C | +0.56 C |
| 2025 | 7.4 C | +0.73 C |
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1893 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 100 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 | 0.2 F (0.1 to 0.3) per decade | 1893 to 2025 | 100 | Rise |
| Mean daily maximum | 0.05 C (0.00 to 0.11) per decade | 0.10 F (-0.01 to 0.20) per decade | 1893 to 2025 | 100 | 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 | 1893 to 2025 | 100 | 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) | 41.1 C (106.0 F) | 1894 | 35.0 C (95.0 F) | 122 |
| Coldest night (TNn) | -45.6 C (-50.1 F) | 1936 | -33.3 C (-27.9 F) | 122 |
| Wettest day (Rx1day) | 104.1 mm (4.1 in) | 1964 | 30.5 mm (1.2 in) | 121 |
| Wettest five days (Rx5day) | 163.1 mm (6.4 in) | 1907 | 49.1 mm (1.9 in) | 121 |
| Longest dry spell (CDD) | 92 days | 1976 | 40 days | 121 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 40.6 C (105.1 F) |
| 1894 | 41.1 C (106.0 F) |
| 1895 | 35.6 C (96.1 F) |
| 1896 | 37.2 C (99.0 F) |
| 1897 | 36.7 C (98.1 F) |
| 1898 | 27.8 C (82.0 F) |
| 1905 | 36.7 C (98.1 F) |
| 1906 | 36.1 C (97.0 F) |
| 1907 | 30.0 C (86.0 F) |
| 1908 | 29.4 C (84.9 F) |
| 1909 | 33.3 C (91.9 F) |
| 1910 | 27.8 C (82.0 F) |
| 1911 | 21.1 C (70.0 F) |
| 1918 | 35.0 C (95.0 F) |
| 1919 | 38.3 C (100.9 F) |
| 1920 | 33.3 C (91.9 F) |
| 1921 | 37.2 C (99.0 F) |
| 1922 | 33.9 C (93.0 F) |
| 1923 | 31.7 C (89.1 F) |
| 1924 | 35.0 C (95.0 F) |
| 1925 | 35.6 C (96.1 F) |
| 1926 | 36.7 C (98.1 F) |
| 1927 | 30.6 C (87.1 F) |
| 1928 | 33.3 C (91.9 F) |
| 1929 | 36.7 C (98.1 F) |
| 1930 | 36.1 C (97.0 F) |
| 1931 | 37.2 C (99.0 F) |
| 1932 | 35.6 C (96.1 F) |
| 1933 | 37.8 C (100.0 F) |
| 1934 | 35.6 C (96.1 F) |
| 1935 | 36.7 C (98.1 F) |
| 1936 | 37.2 C (99.0 F) |
| 1937 | 36.7 C (98.1 F) |
| 1938 | 33.9 C (93.0 F) |
| 1939 | 36.7 C (98.1 F) |
| 1940 | 37.8 C (100.0 F) |
| 1941 | 35.6 C (96.1 F) |
| 1942 | 34.4 C (93.9 F) |
| 1943 | 32.8 C (91.0 F) |
| 1944 | 32.8 C (91.0 F) |
| 1945 | 34.4 C (93.9 F) |
| 1946 | 34.4 C (93.9 F) |
| 1947 | 34.4 C (93.9 F) |
| 1948 | 33.3 C (91.9 F) |
| 1949 | 38.3 C (100.9 F) |
| 1950 | 34.4 C (93.9 F) |
| 1951 | 35.6 C (96.1 F) |
| 1952 | 35.0 C (95.0 F) |
| 1953 | 38.9 C (102.0 F) |
| 1954 | 35.0 C (95.0 F) |
| 1955 | 34.4 C (93.9 F) |
| 1956 | 33.9 C (93.0 F) |
| 1957 | 33.3 C (91.9 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 35.6 C (96.1 F) |
| 1960 | 37.2 C (99.0 F) |
| 1961 | 39.4 C (102.9 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 34.4 C (93.9 F) |
| 1964 | 34.4 C (93.9 F) |
| 1965 | 33.9 C (93.0 F) |
| 1966 | 35.0 C (95.0 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 35.0 C (95.0 F) |
| 1969 | 38.9 C (102.0 F) |
| 1970 | 35.0 C (95.0 F) |
| 1971 | 36.1 C (97.0 F) |
| 1972 | 33.3 C (91.9 F) |
| 1973 | 38.3 C (100.9 F) |
| 1974 | 35.6 C (96.1 F) |
| 1975 | 36.1 C (97.0 F) |
| 1976 | 34.4 C (93.9 F) |
| 1977 | 32.2 C (90.0 F) |
| 1978 | 33.3 C (91.9 F) |
| 1979 | 33.9 C (93.0 F) |
| 1980 | 33.3 C (91.9 F) |
| 1981 | 36.7 C (98.1 F) |
| 1982 | 33.3 C (91.9 F) |
| 1983 | 38.9 C (102.0 F) |
| 1984 | 36.1 C (97.0 F) |
| 1985 | 36.1 C (97.0 F) |
| 1986 | 33.9 C (93.0 F) |
| 1987 | 35.0 C (95.0 F) |
| 1988 | 36.1 C (97.0 F) |
| 1989 | 34.4 C (93.9 F) |
| 1990 | 37.2 C (99.0 F) |
| 1991 | 36.1 C (97.0 F) |
| 1992 | 35.6 C (96.1 F) |
| 1993 | 33.9 C (93.0 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 33.3 C (91.9 F) |
| 1996 | 18.3 C (64.9 F) |
| 1997 | 33.3 C (91.9 F) |
| 1998 | 33.9 C (93.0 F) |
| 1999 | 34.4 C (93.9 F) |
| 2000 | 35.6 C (96.1 F) |
| 2001 | 35.0 C (95.0 F) |
| 2002 | 35.6 C (96.1 F) |
| 2003 | 36.1 C (97.0 F) |
| 2004 | 33.9 C (93.0 F) |
| 2005 | 33.9 C (93.0 F) |
| 2006 | 34.4 C (93.9 F) |
| 2007 | 36.7 C (98.1 F) |
| 2008 | 34.4 C (93.9 F) |
| 2009 | 33.3 C (91.9 F) |
| 2010 | 34.4 C (93.9 F) |
| 2011 | 35.0 C (95.0 F) |
| 2012 | 33.9 C (93.0 F) |
| 2013 | 35.6 C (96.1 F) |
| 2014 | 31.7 C (89.1 F) |
| 2015 | 35.6 C (96.1 F) |
| 2016 | 32.8 C (91.0 F) |
| 2017 | 35.6 C (96.1 F) |
| 2018 | 35.0 C (95.0 F) |
| 2019 | 32.8 C (91.0 F) |
| 2020 | 34.4 C (93.9 F) |
| 2021 | 36.7 C (98.1 F) |
| 2022 | 35.0 C (95.0 F) |
| 2023 | 36.1 C (97.0 F) |
| 2024 | 37.2 C (99.0 F) |
| 2025 | 34.4 C (93.9 F) |
| 2026 | 36.1 C (97.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -41.1 C (-42.0 F) |
| 1894 | -32.2 C (-26.0 F) |
| 1895 | -32.2 C (-26.0 F) |
| 1896 | -34.4 C (-29.9 F) |
| 1897 | -34.4 C (-29.9 F) |
| 1898 | -29.4 C (-20.9 F) |
| 1905 | -36.7 C (-34.1 F) |
| 1906 | -33.3 C (-27.9 F) |
| 1907 | -35.6 C (-32.1 F) |
| 1908 | -23.3 C (-9.9 F) |
| 1909 | -41.1 C (-42.0 F) |
| 1910 | -40.0 C (-40.0 F) |
| 1911 | -36.1 C (-33.0 F) |
| 1918 | -34.4 C (-29.9 F) |
| 1919 | -33.3 C (-27.9 F) |
| 1920 | -36.1 C (-33.0 F) |
| 1921 | -32.8 C (-27.0 F) |
| 1922 | -36.7 C (-34.1 F) |
| 1923 | -38.9 C (-38.0 F) |
| 1924 | -35.6 C (-32.1 F) |
| 1925 | -27.2 C (-17.0 F) |
| 1926 | -30.0 C (-22.0 F) |
| 1927 | -37.2 C (-35.0 F) |
| 1928 | -34.4 C (-29.9 F) |
| 1929 | -37.2 C (-35.0 F) |
| 1930 | -37.8 C (-36.0 F) |
| 1931 | -21.1 C (-6.0 F) |
| 1932 | -37.8 C (-36.0 F) |
| 1933 | -32.2 C (-26.0 F) |
| 1934 | -32.2 C (-26.0 F) |
| 1935 | -35.6 C (-32.1 F) |
| 1936 | -45.6 C (-50.1 F) |
| 1937 | -35.6 C (-32.1 F) |
| 1938 | -33.9 C (-29.0 F) |
| 1939 | -40.6 C (-41.1 F) |
| 1940 | -30.6 C (-23.1 F) |
| 1941 | -28.3 C (-18.9 F) |
| 1942 | -31.1 C (-24.0 F) |
| 1943 | -42.2 C (-44.0 F) |
| 1944 | -27.2 C (-17.0 F) |
| 1945 | -31.1 C (-24.0 F) |
| 1946 | -33.3 C (-27.9 F) |
| 1947 | -33.3 C (-27.9 F) |
| 1948 | -31.7 C (-25.1 F) |
| 1949 | -40.6 C (-41.1 F) |
| 1950 | -40.6 C (-41.1 F) |
| 1951 | -37.2 C (-35.0 F) |
| 1952 | -34.4 C (-29.9 F) |
| 1953 | -25.0 C (-13.0 F) |
| 1954 | -40.6 C (-41.1 F) |
| 1955 | -34.4 C (-29.9 F) |
| 1956 | -35.0 C (-31.0 F) |
| 1957 | -38.3 C (-36.9 F) |
| 1958 | -25.0 C (-13.0 F) |
| 1959 | -36.1 C (-33.0 F) |
| 1960 | -30.6 C (-23.1 F) |
| 1961 | -31.7 C (-25.1 F) |
| 1962 | -31.7 C (-25.1 F) |
| 1963 | -35.0 C (-31.0 F) |
| 1964 | -34.4 C (-29.9 F) |
| 1965 | -30.0 C (-22.0 F) |
| 1966 | -27.8 C (-18.0 F) |
| 1967 | -31.7 C (-25.1 F) |
| 1968 | -41.7 C (-43.1 F) |
| 1969 | -38.3 C (-36.9 F) |
| 1970 | -28.9 C (-20.0 F) |
| 1971 | -37.8 C (-36.0 F) |
| 1972 | -36.7 C (-34.1 F) |
| 1973 | -26.7 C (-16.1 F) |
| 1974 | -29.4 C (-20.9 F) |
| 1975 | -27.8 C (-18.0 F) |
| 1976 | -27.8 C (-18.0 F) |
| 1977 | -34.4 C (-29.9 F) |
| 1978 | -31.1 C (-24.0 F) |
| 1979 | -29.4 C (-20.9 F) |
| 1980 | -32.8 C (-27.0 F) |
| 1981 | -30.0 C (-22.0 F) |
| 1982 | -32.8 C (-27.0 F) |
| 1983 | -37.2 C (-35.0 F) |
| 1984 | -32.2 C (-26.0 F) |
| 1985 | -31.7 C (-25.1 F) |
| 1986 | -32.2 C (-26.0 F) |
| 1987 | -21.1 C (-6.0 F) |
| 1988 | -28.3 C (-18.9 F) |
| 1989 | -36.7 C (-34.1 F) |
| 1990 | -28.3 C (-18.9 F) |
| 1991 | -27.2 C (-17.0 F) |
| 1992 | -32.2 C (-26.0 F) |
| 1993 | -30.0 C (-22.0 F) |
| 1994 | -34.4 C (-29.9 F) |
| 1995 | -26.1 C (-15.0 F) |
| 1996 | -36.7 C (-34.1 F) |
| 1997 | -20.0 C (-4.0 F) |
| 1998 | -34.4 C (-29.9 F) |
| 1999 | -23.3 C (-9.9 F) |
| 2000 | -29.4 C (-20.9 F) |
| 2001 | -27.8 C (-18.0 F) |
| 2002 | -37.2 C (-35.0 F) |
| 2003 | -30.0 C (-22.0 F) |
| 2004 | -33.9 C (-29.0 F) |
| 2005 | -41.1 C (-42.0 F) |
| 2006 | -32.8 C (-27.0 F) |
| 2007 | -24.4 C (-11.9 F) |
| 2008 | -32.2 C (-26.0 F) |
| 2009 | -35.0 C (-31.0 F) |
| 2010 | -31.7 C (-25.1 F) |
| 2011 | -35.6 C (-32.1 F) |
| 2012 | -30.0 C (-22.0 F) |
| 2013 | -34.4 C (-29.9 F) |
| 2014 | -33.9 C (-29.0 F) |
| 2015 | -25.0 C (-13.0 F) |
| 2016 | -31.1 C (-24.0 F) |
| 2017 | -37.2 C (-35.0 F) |
| 2018 | -33.9 C (-29.0 F) |
| 2019 | -37.8 C (-36.0 F) |
| 2020 | -28.3 C (-18.9 F) |
| 2021 | -37.8 C (-36.0 F) |
| 2022 | -35.0 C (-31.0 F) |
| 2023 | -34.4 C (-29.9 F) |
| 2024 | -38.3 C (-36.9 F) |
| 2025 | -35.6 C (-32.1 F) |
| 2026 | -27.8 C (-18.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 30.5 mm (1.2 in) |
| 1894 | 38.1 mm (1.5 in) |
| 1895 | 25.4 mm (1.0 in) |
| 1896 | 41.7 mm (1.6 in) |
| 1897 | 30.5 mm (1.2 in) |
| 1898 | 29.2 mm (1.1 in) |
| 1905 | 21.6 mm (0.9 in) |
| 1906 | 30.5 mm (1.2 in) |
| 1907 | 88.9 mm (3.5 in) |
| 1908 | 27.9 mm (1.1 in) |
| 1909 | 58.4 mm (2.3 in) |
| 1910 | 7.6 mm (0.30 in) |
| 1911 | n/a |
| 1918 | 18.0 mm (0.7 in) |
| 1919 | 35.6 mm (1.4 in) |
| 1920 | 20.8 mm (0.8 in) |
| 1921 | 52.8 mm (2.1 in) |
| 1922 | 29.5 mm (1.2 in) |
| 1923 | 48.0 mm (1.9 in) |
| 1924 | 20.1 mm (0.8 in) |
| 1925 | 50.8 mm (2.0 in) |
| 1926 | 47.2 mm (1.9 in) |
| 1927 | 51.8 mm (2.0 in) |
| 1928 | 33.0 mm (1.3 in) |
| 1929 | 21.1 mm (0.8 in) |
| 1930 | 21.6 mm (0.9 in) |
| 1931 | 43.4 mm (1.7 in) |
| 1932 | 26.7 mm (1.1 in) |
| 1933 | 62.7 mm (2.5 in) |
| 1934 | 37.1 mm (1.5 in) |
| 1935 | 12.7 mm (0.5 in) |
| 1936 | 21.6 mm (0.9 in) |
| 1937 | 25.7 mm (1.0 in) |
| 1938 | 46.2 mm (1.8 in) |
| 1939 | 38.9 mm (1.5 in) |
| 1940 | 26.2 mm (1.0 in) |
| 1941 | 18.5 mm (0.7 in) |
| 1942 | 33.0 mm (1.3 in) |
| 1943 | 41.9 mm (1.6 in) |
| 1944 | 38.1 mm (1.5 in) |
| 1945 | 18.0 mm (0.7 in) |
| 1946 | 24.6 mm (1.0 in) |
| 1947 | 51.6 mm (2.0 in) |
| 1948 | 51.1 mm (2.0 in) |
| 1949 | 29.2 mm (1.1 in) |
| 1950 | 38.6 mm (1.5 in) |
| 1951 | 26.4 mm (1.0 in) |
| 1952 | 27.2 mm (1.1 in) |
| 1953 | 62.2 mm (2.4 in) |
| 1954 | 20.3 mm (0.8 in) |
| 1955 | 31.8 mm (1.3 in) |
| 1956 | 26.7 mm (1.1 in) |
| 1957 | 37.6 mm (1.5 in) |
| 1958 | 45.0 mm (1.8 in) |
| 1959 | 23.4 mm (0.9 in) |
| 1960 | 16.5 mm (0.6 in) |
| 1961 | 16.8 mm (0.7 in) |
| 1962 | 24.6 mm (1.0 in) |
| 1963 | 19.8 mm (0.8 in) |
| 1964 | 104.1 mm (4.1 in) |
| 1965 | 31.5 mm (1.2 in) |
| 1966 | 23.1 mm (0.9 in) |
| 1967 | 29.5 mm (1.2 in) |
| 1968 | 53.8 mm (2.1 in) |
| 1969 | 36.6 mm (1.4 in) |
| 1970 | 39.9 mm (1.6 in) |
| 1971 | 15.7 mm (0.6 in) |
| 1972 | 42.4 mm (1.7 in) |
| 1973 | 18.5 mm (0.7 in) |
| 1974 | 18.3 mm (0.7 in) |
| 1975 | 60.7 mm (2.4 in) |
| 1976 | 34.0 mm (1.3 in) |
| 1977 | 20.3 mm (0.8 in) |
| 1978 | 23.4 mm (0.9 in) |
| 1979 | 19.8 mm (0.8 in) |
| 1980 | 40.9 mm (1.6 in) |
| 1981 | 27.4 mm (1.1 in) |
| 1982 | 28.4 mm (1.1 in) |
| 1983 | 35.1 mm (1.4 in) |
| 1984 | 32.3 mm (1.3 in) |
| 1985 | 30.5 mm (1.2 in) |
| 1986 | 34.8 mm (1.4 in) |
| 1987 | 33.3 mm (1.3 in) |
| 1988 | 17.8 mm (0.7 in) |
| 1989 | 42.9 mm (1.7 in) |
| 1990 | 17.8 mm (0.7 in) |
| 1991 | 51.3 mm (2.0 in) |
| 1992 | 16.5 mm (0.6 in) |
| 1993 | 45.2 mm (1.8 in) |
| 1994 | 38.1 mm (1.5 in) |
| 1995 | 45.0 mm (1.8 in) |
| 1996 | 7.9 mm (0.31 in) |
| 1997 | 41.9 mm (1.6 in) |
| 1998 | 21.8 mm (0.9 in) |
| 1999 | 21.8 mm (0.9 in) |
| 2000 | 42.7 mm (1.7 in) |
| 2001 | 22.1 mm (0.9 in) |
| 2002 | 54.4 mm (2.1 in) |
| 2003 | 34.5 mm (1.4 in) |
| 2004 | 26.9 mm (1.1 in) |
| 2005 | 22.6 mm (0.9 in) |
| 2006 | 43.2 mm (1.7 in) |
| 2007 | 31.8 mm (1.3 in) |
| 2008 | 45.7 mm (1.8 in) |
| 2009 | 25.7 mm (1.0 in) |
| 2010 | 20.1 mm (0.8 in) |
| 2011 | 38.9 mm (1.5 in) |
| 2012 | 34.0 mm (1.3 in) |
| 2013 | 17.3 mm (0.7 in) |
| 2014 | 22.9 mm (0.9 in) |
| 2015 | 28.2 mm (1.1 in) |
| 2016 | 24.9 mm (1.0 in) |
| 2017 | 32.8 mm (1.3 in) |
| 2018 | 44.7 mm (1.8 in) |
| 2019 | 40.4 mm (1.6 in) |
| 2020 | 27.2 mm (1.1 in) |
| 2021 | 37.6 mm (1.5 in) |
| 2022 | 20.3 mm (0.8 in) |
| 2023 | 23.1 mm (0.9 in) |
| 2024 | 48.3 mm (1.9 in) |
| 2025 | 29.0 mm (1.1 in) |
| 2026 | 25.1 mm (1.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 38.1 mm (1.5 in) |
| 1894 | 64.0 mm (2.5 in) |
| 1895 | 27.9 mm (1.1 in) |
| 1896 | 62.0 mm (2.4 in) |
| 1897 | 37.6 mm (1.5 in) |
| 1898 | 34.3 mm (1.4 in) |
| 1905 | 28.5 mm (1.1 in) |
| 1906 | 66.0 mm (2.6 in) |
| 1907 | 163.1 mm (6.4 in) |
| 1908 | 27.9 mm (1.1 in) |
| 1909 | 114.3 mm (4.5 in) |
| 1910 | 10.1 mm (0.4 in) |
| 1911 | n/a |
| 1918 | 33.5 mm (1.3 in) |
| 1919 | 51.2 mm (2.0 in) |
| 1920 | 37.6 mm (1.5 in) |
| 1921 | 52.8 mm (2.1 in) |
| 1922 | 52.9 mm (2.1 in) |
| 1923 | 54.9 mm (2.2 in) |
| 1924 | 38.1 mm (1.5 in) |
| 1925 | 57.1 mm (2.2 in) |
| 1926 | 71.1 mm (2.8 in) |
| 1927 | 98.8 mm (3.9 in) |
| 1928 | 66.5 mm (2.6 in) |
| 1929 | 35.9 mm (1.4 in) |
| 1930 | 27.7 mm (1.1 in) |
| 1931 | 63.5 mm (2.5 in) |
| 1932 | 44.4 mm (1.7 in) |
| 1933 | 88.9 mm (3.5 in) |
| 1934 | 66.0 mm (2.6 in) |
| 1935 | 19.1 mm (0.8 in) |
| 1936 | 26.2 mm (1.0 in) |
| 1937 | 50.4 mm (2.0 in) |
| 1938 | 75.4 mm (3.0 in) |
| 1939 | 48.5 mm (1.9 in) |
| 1940 | 42.7 mm (1.7 in) |
| 1941 | 38.8 mm (1.5 in) |
| 1942 | 62.2 mm (2.4 in) |
| 1943 | 64.1 mm (2.5 in) |
| 1944 | 43.7 mm (1.7 in) |
| 1945 | 64.2 mm (2.5 in) |
| 1946 | 39.6 mm (1.6 in) |
| 1947 | 68.1 mm (2.7 in) |
| 1948 | 89.7 mm (3.5 in) |
| 1949 | 31.7 mm (1.2 in) |
| 1950 | 51.6 mm (2.0 in) |
| 1951 | 62.8 mm (2.5 in) |
| 1952 | 34.5 mm (1.4 in) |
| 1953 | 99.5 mm (3.9 in) |
| 1954 | 31.5 mm (1.2 in) |
| 1955 | 52.4 mm (2.1 in) |
| 1956 | 65.6 mm (2.6 in) |
| 1957 | 52.5 mm (2.1 in) |
| 1958 | 75.5 mm (3.0 in) |
| 1959 | 31.3 mm (1.2 in) |
| 1960 | 33.3 mm (1.3 in) |
| 1961 | 24.4 mm (1.0 in) |
| 1962 | 39.1 mm (1.5 in) |
| 1963 | 32.0 mm (1.3 in) |
| 1964 | 120.6 mm (4.7 in) |
| 1965 | 56.6 mm (2.2 in) |
| 1966 | 40.7 mm (1.6 in) |
| 1967 | 54.1 mm (2.1 in) |
| 1968 | 71.8 mm (2.8 in) |
| 1969 | 108.5 mm (4.3 in) |
| 1970 | 68.6 mm (2.7 in) |
| 1971 | 24.0 mm (0.9 in) |
| 1972 | 47.8 mm (1.9 in) |
| 1973 | 18.8 mm (0.7 in) |
| 1974 | 28.0 mm (1.1 in) |
| 1975 | 80.0 mm (3.1 in) |
| 1976 | 37.1 mm (1.5 in) |
| 1977 | 31.3 mm (1.2 in) |
| 1978 | 48.2 mm (1.9 in) |
| 1979 | 33.5 mm (1.3 in) |
| 1980 | 83.8 mm (3.3 in) |
| 1981 | 49.1 mm (1.9 in) |
| 1982 | 42.1 mm (1.7 in) |
| 1983 | 37.2 mm (1.5 in) |
| 1984 | 33.6 mm (1.3 in) |
| 1985 | 38.9 mm (1.5 in) |
| 1986 | 49.8 mm (2.0 in) |
| 1987 | 51.6 mm (2.0 in) |
| 1988 | 24.7 mm (1.0 in) |
| 1989 | 80.3 mm (3.2 in) |
| 1990 | 34.0 mm (1.3 in) |
| 1991 | 96.5 mm (3.8 in) |
| 1992 | 43.8 mm (1.7 in) |
| 1993 | 53.3 mm (2.1 in) |
| 1994 | 55.8 mm (2.2 in) |
| 1995 | 81.1 mm (3.2 in) |
| 1996 | 12.2 mm (0.5 in) |
| 1997 | 61.7 mm (2.4 in) |
| 1998 | 54.8 mm (2.2 in) |
| 1999 | 45.0 mm (1.8 in) |
| 2000 | 51.3 mm (2.0 in) |
| 2001 | 29.5 mm (1.2 in) |
| 2002 | 123.3 mm (4.9 in) |
| 2003 | 52.3 mm (2.1 in) |
| 2004 | 48.5 mm (1.9 in) |
| 2005 | 73.0 mm (2.9 in) |
| 2006 | 57.7 mm (2.3 in) |
| 2007 | 37.4 mm (1.5 in) |
| 2008 | 96.5 mm (3.8 in) |
| 2009 | 57.7 mm (2.3 in) |
| 2010 | 44.0 mm (1.7 in) |
| 2011 | 43.0 mm (1.7 in) |
| 2012 | 35.5 mm (1.4 in) |
| 2013 | 27.7 mm (1.1 in) |
| 2014 | 67.5 mm (2.7 in) |
| 2015 | 46.8 mm (1.8 in) |
| 2016 | 32.8 mm (1.3 in) |
| 2017 | 45.3 mm (1.8 in) |
| 2018 | 72.4 mm (2.9 in) |
| 2019 | 69.4 mm (2.7 in) |
| 2020 | 46.8 mm (1.8 in) |
| 2021 | 50.2 mm (2.0 in) |
| 2022 | 45.4 mm (1.8 in) |
| 2023 | 43.2 mm (1.7 in) |
| 2024 | 61.3 mm (2.4 in) |
| 2025 | 30.0 mm (1.2 in) |
| 2026 | 71.9 mm (2.8 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 31 days |
| 1894 | 39 days |
| 1895 | 59 days |
| 1896 | 31 days |
| 1897 | 36 days |
| 1898 | 17 days |
| 1905 | 39 days |
| 1906 | 39 days |
| 1907 | 25 days |
| 1908 | 72 days |
| 1909 | 61 days |
| 1910 | 41 days |
| 1911 | n/a |
| 1918 | 38 days |
| 1919 | 50 days |
| 1920 | 27 days |
| 1921 | 51 days |
| 1922 | 66 days |
| 1923 | 37 days |
| 1924 | 22 days |
| 1925 | 34 days |
| 1926 | 50 days |
| 1927 | 29 days |
| 1928 | 71 days |
| 1929 | 35 days |
| 1930 | 55 days |
| 1931 | 47 days |
| 1932 | 40 days |
| 1933 | 47 days |
| 1934 | 39 days |
| 1935 | 55 days |
| 1936 | 51 days |
| 1937 | 48 days |
| 1938 | 40 days |
| 1939 | 54 days |
| 1940 | 48 days |
| 1941 | 42 days |
| 1942 | 37 days |
| 1943 | 35 days |
| 1944 | 44 days |
| 1945 | 40 days |
| 1946 | 43 days |
| 1947 | 50 days |
| 1948 | 43 days |
| 1949 | 29 days |
| 1950 | 48 days |
| 1951 | 23 days |
| 1952 | 37 days |
| 1953 | 45 days |
| 1954 | 69 days |
| 1955 | 45 days |
| 1956 | 25 days |
| 1957 | 59 days |
| 1958 | 26 days |
| 1959 | 51 days |
| 1960 | 60 days |
| 1961 | 28 days |
| 1962 | 36 days |
| 1963 | 64 days |
| 1964 | 65 days |
| 1965 | 45 days |
| 1966 | 38 days |
| 1967 | 33 days |
| 1968 | 35 days |
| 1969 | 86 days |
| 1970 | 27 days |
| 1971 | 55 days |
| 1972 | 39 days |
| 1973 | 65 days |
| 1974 | 49 days |
| 1975 | 56 days |
| 1976 | 92 days |
| 1977 | 56 days |
| 1978 | 27 days |
| 1979 | 62 days |
| 1980 | 36 days |
| 1981 | 56 days |
| 1982 | 39 days |
| 1983 | 39 days |
| 1984 | 82 days |
| 1985 | 51 days |
| 1986 | 29 days |
| 1987 | 73 days |
| 1988 | 36 days |
| 1989 | 28 days |
| 1990 | 69 days |
| 1991 | 55 days |
| 1992 | 60 days |
| 1993 | 27 days |
| 1994 | 77 days |
| 1995 | 40 days |
| 1996 | 14 days |
| 1997 | 53 days |
| 1998 | 34 days |
| 1999 | 48 days |
| 2000 | 45 days |
| 2001 | 35 days |
| 2002 | 34 days |
| 2003 | 37 days |
| 2004 | 31 days |
| 2005 | 53 days |
| 2006 | 36 days |
| 2007 | 40 days |
| 2008 | 54 days |
| 2009 | 41 days |
| 2010 | 35 days |
| 2011 | 12 days |
| 2012 | 35 days |
| 2013 | 28 days |
| 2014 | 18 days |
| 2015 | 32 days |
| 2016 | 61 days |
| 2017 | 32 days |
| 2018 | 31 days |
| 2019 | 23 days |
| 2020 | 42 days |
| 2021 | 43 days |
| 2022 | 28 days |
| 2023 | 38 days |
| 2024 | 47 days |
| 2025 | 45 days |
| 2026 | 47 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
100 years with a frostAcross 100 years with a frost, the median last spring frost at Choteau falls on 25 May and the median first autumn frost on 13 September, which leaves a median of 112 days between them.
In 1993 to 2025 the median growing season was 110 days. That is 2 days more than in 1893 to 1950.
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 1950) | Recent period (1993 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 25 May | 29 May | 30 May | 1 day later | -0.4 days per decade |
| First autumn frost | 13 September | 10 September | 11 September | 1 day later | +0.3 days per decade |
| Growing days | 112 days | 108 days | 110 days | 2 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
108 years, 1893 to 2025A day with at least 30.2 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 78.4 mm (3.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 30.2 mm (1.2 in) | |
| 5 years | 41.9 mm (1.6 in) | |
| 10 years | 50.2 mm (2.0 in) | |
| 25 years | 61.1 mm (2.4 in) | |
| 50 years | 69.6 mm (2.7 in) | |
| 100 years | 78.4 mm (3.1 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 108 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: 104.1 mm (4.1 in) in 1964; 62.7 mm (2.5 in) in 1933; 62.2 mm (2.4 in) in 1953.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Choteau, at 1972. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1972 ran 0.3 C (0.5 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1972 | +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.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Choteau had a mean temperature of 6.8 C (44.3 F) and 303.6 mm (12.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Koosharem (United States, 1,036 km away), Wanship Dam (United States, 784 km away) and Panguitch (United States, 1,112 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Koosharem | United States | 1,036 km (644 mi) | 6.5 C (43.7 F) | 240.3 mm (9.5 in) | 1.02 |
| Wanship Dam | United States | 784 km (487 mi) | 6.6 C (44.0 F) | 415.6 mm (16.4 in) | 1.09 |
| Panguitch | United States | 1,112 km (691 mi) | 6.8 C (44.3 F) | 260.8 mm (10.3 in) | 1.12 |
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).