Ft Benton Weather Records (USC00243113)
Record envelope, standing records and threshold days for Ft Benton (USC00243113), Montana, United States, with 133 years of record.
Key Facts for Ft Benton
- Ft Benton (USC00243113) is a weather station in Montana, United States at 47.83 latitude and -110.66 longitude, 807 m (2,649 ft) above sea level.
- The station reports from 1894 to 2026, 133 years of record.
- 1,464 records set at Ft Benton still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Ft Benton set a monthly record daily precipitation of 30.2 mm (1.2 in) 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: Montana, United States, 47.83 latitude, -110.66 longitude.
- Elevation: 807 m (2,649 ft).
- Period of record: 1894 to 2026, 133 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
10 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 21.7 C (71.1 F) | -45.0 C (-49.0 F) | 21.1 C (70.0 F) | -24.4 C (-11.9 F) |
| Feb | 25.0 C (77.0 F) | -42.8 C (-45.0 F) | 23.3 C (73.9 F) | -23.3 C (-9.9 F) |
| Mar | 28.3 C (82.9 F) | -37.2 C (-35.0 F) | 26.1 C (79.0 F) | -20.6 C (-5.1 F) |
| Apr | 33.9 C (93.0 F) | -22.2 C (-8.0 F) | 28.3 C (82.9 F) | -5.6 C (21.9 F) |
| May | 36.1 C (97.0 F) | -10.0 C (14.0 F) | 33.9 C (93.0 F) | -6.1 C (21.0 F) |
| Jun | 42.2 C (108.0 F) | -2.8 C (27.0 F) | 31.7 C (89.1 F) | 4.4 C (39.9 F) |
| Jul | 41.7 C (107.1 F) | 1.1 C (34.0 F) | 41.7 C (107.1 F) | 9.4 C (48.9 F) |
| Aug | 42.8 C (109.0 F) | -1.7 C (28.9 F) | 41.1 C (106.0 F) | 5.0 C (41.0 F) |
| Sep | 40.0 C (104.0 F) | -8.3 C (17.1 F) | 34.4 C (93.9 F) | -1.7 C (28.9 F) |
| Oct | 34.4 C (93.9 F) | -26.1 C (-15.0 F) | 30.6 C (87.1 F) | 0.6 C (33.1 F) |
| Nov | 26.1 C (79.0 F) | -33.9 C (-29.0 F) | n/a | n/a |
| Dec | 22.8 C (73.0 F) | -42.8 C (-45.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1894 | 2 |
| 1895 | 30 |
| 1896 | 3 |
| 1897 | 23 |
| 1898 | 13 |
| 1899 | 25 |
| 1900 | 13 |
| 1901 | 6 |
| 1902 | 6 |
| 1903 | 9 |
| 1904 | 4 |
| 1905 | 22 |
| 1906 | 11 |
| 1907 | 7 |
| 1908 | 6 |
| 1909 | 19 |
| 1910 | 24 |
| 1911 | 16 |
| 1912 | 6 |
| 1913 | 13 |
| 1937 | 10 |
| 1938 | 13 |
| 1939 | 18 |
| 1940 | 17 |
| 1941 | 6 |
| 1942 | 9 |
| 1943 | 19 |
| 1944 | 6 |
| 1945 | 6 |
| 1946 | 12 |
| 1947 | 17 |
| 1948 | 5 |
| 1949 | 12 |
| 1950 | 28 |
| 1951 | 21 |
| 1952 | 8 |
| 1953 | 9 |
| 1954 | 22 |
| 1955 | 10 |
| 1956 | 21 |
| 1957 | 16 |
| 1958 | 13 |
| 1959 | 10 |
| 1960 | 13 |
| 1961 | 22 |
| 1962 | 18 |
| 1963 | 17 |
| 1964 | 11 |
| 1965 | 16 |
| 1966 | 9 |
| 1967 | 8 |
| 1968 | 23 |
| 1969 | 24 |
| 1970 | 9 |
| 1971 | 5 |
| 1972 | 24 |
| 1973 | 14 |
| 1974 | 6 |
| 1975 | 11 |
| 1976 | 9 |
| 1977 | 15 |
| 1978 | 8 |
| 1979 | 7 |
| 1980 | 11 |
| 1981 | 13 |
| 1982 | 8 |
| 1983 | 16 |
| 1984 | 18 |
| 1985 | 34 |
| 1986 | 17 |
| 1987 | 20 |
| 1988 | 21 |
| 1989 | 6 |
| 1990 | 19 |
| 1991 | 19 |
| 1992 | 25 |
| 1993 | 12 |
| 1994 | 7 |
| 1995 | 11 |
| 1996 | 9 |
| 1997 | 9 |
| 1998 | 8 |
| 1999 | 12 |
| 2000 | 6 |
| 2001 | 6 |
| 2002 | 22 |
| 2003 | 16 |
| 2004 | 8 |
| 2005 | 11 |
| 2006 | 7 |
| 2007 | 8 |
| 2008 | 6 |
| 2009 | 14 |
| 2010 | 10 |
| 2011 | 7 |
| 2012 | 10 |
| 2013 | 10 |
| 2014 | 13 |
| 2015 | 16 |
| 2016 | 3 |
| 2017 | 17 |
| 2018 | 8 |
| 2019 | 23 |
| 2020 | 20 |
| 2021 | 24 |
| 2022 | 23 |
| 2023 | 11 |
| 2024 | 6 |
| 2025 | 11 |
| 2026 | 18 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1957-01-25 | Record low minimum temperature | Record low minimum temperature -43.3 C (-45.9 F) |
| 1968-12-29 | Record low maximum temperature | Record low maximum temperature -32.8 C (-27.0 F) |
| 1969-01-24 | Record low minimum temperature | Record low minimum temperature -45.0 C (-49.0 F) |
| 1973-04-20 | Record daily snowfall | Record daily snowfall 43.2 cm (17.0 in) |
| 1978-02-02 | Record snow depth | Record snow depth 53.3 cm (21.0 in) |
| 1978-02-11 | Record snow depth | Record snow depth 61.0 cm (24.0 in) |
| 1978-02-12 | Record snow depth | Record snow depth 66.0 cm (26.0 in) |
| 1995-06-05 | Record daily precipitation | Record daily precipitation 76.5 mm (3.0 in) |
Wettest Day of Each Month
Jun: 76.5 mm (3.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 20.8 mm (0.8 in) | 24 January 1959 |
| Feb | 18.5 mm (0.7 in) | 21 February 1951 |
| Mar | 43.7 mm (1.7 in) | 29 March 1977 |
| Apr | 46.2 mm (1.8 in) | 20 April 1973 |
| May | 67.3 mm (2.6 in) | 21 May 1962 |
| Jun | 76.5 mm (3.0 in) | 5 June 1995 |
| Jul | 60.7 mm (2.4 in) | 10 July 1983 |
| Aug | 49.0 mm (1.9 in) | 24 August 2014 |
| Sep | 41.9 mm (1.6 in) | 12 September 1978 |
| Oct | 29.7 mm (1.2 in) | 23 October 1954 |
| Nov | 19.8 mm (0.8 in) | 4 November 1958 |
| Dec | 17.3 mm (0.7 in) | 21 December 1966 |
Period of Record Coverage
1894 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1894 | 20 | 5% | No |
| 1895 | 347 | 95% | Yes |
| 1896 | 85 | 23% | No |
| 1897 | 317 | 87% | No |
| 1898 | 326 | 89% | No |
| 1899 | 319 | 87% | No |
| 1900 | 179 | 49% | No |
| 1901 | 296 | 81% | No |
| 1902 | 355 | 97% | Yes |
| 1903 | 299 | 82% | No |
| 1904 | 240 | 66% | No |
| 1905 | 334 | 92% | Yes |
| 1906 | 363 | 99% | Yes |
| 1907 | 331 | 91% | Yes |
| 1908 | 358 | 98% | Yes |
| 1909 | 330 | 90% | Yes |
| 1910 | 332 | 91% | Yes |
| 1911 | 330 | 90% | Yes |
| 1912 | 363 | 99% | Yes |
| 1913 | 140 | 38% | No |
| 1937 | 166 | 45% | No |
| 1938 | 326 | 89% | No |
| 1939 | 315 | 86% | No |
| 1940 | 340 | 93% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 363 | 99% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 361 | 99% | Yes |
| 1954 | 362 | 99% | Yes |
| 1955 | 363 | 99% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 363 | 99% | Yes |
| 1960 | 358 | 98% | Yes |
| 1961 | 358 | 98% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 363 | 99% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 363 | 99% | Yes |
| 1983 | 362 | 99% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 363 | 99% | Yes |
| 1986 | 363 | 99% | Yes |
| 1987 | 362 | 99% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 363 | 99% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 364 | 100% | Yes |
| 1994 | 325 | 89% | No |
| 1995 | 352 | 96% | Yes |
| 1996 | 346 | 95% | Yes |
| 1997 | 328 | 90% | No |
| 1998 | 318 | 87% | No |
| 1999 | 281 | 77% | No |
| 2000 | 278 | 76% | No |
| 2001 | 280 | 77% | No |
| 2002 | 355 | 97% | Yes |
| 2003 | 358 | 98% | Yes |
| 2004 | 332 | 91% | Yes |
| 2005 | 358 | 98% | Yes |
| 2006 | 363 | 99% | Yes |
| 2007 | 363 | 99% | Yes |
| 2008 | 330 | 90% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 364 | 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 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 365 | 100% | Yes |
| 2025 | 364 | 100% | Yes |
| 2026 | 284 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 October 2026 | Ft Benton, US | monthly rain (Provisional) | 30.2 mm (1.2 in) | 0.5 mm (0.02 in) | 71 years | 42 of 100 (Notable) |
| 23 August 2026 | Ft Benton, US | daily high min (Tie, Provisional) | 19.4 C (66.9 F) | tie | 128 years | 10 of 100 (Routine) |
| 2 August 2026 | Ft Benton, US | daily high max | 41.1 C (106.0 F) | 1.7 C (3.1 F) | 4 years | 14 of 100 (Routine) |
| 26 July 2026 | Ft Benton, US | monthly high max | 41.7 C (107.1 F) | 0.6 C (1.1 F) | 89 years | 47 of 100 (Notable) |
| 12 July 2026 | Ft Benton, US | daily high max | 40.0 C (104.0 F) | 1.1 C (2.0 F) | 24 years | 19 of 100 (Routine) |
| 2 June 2026 | Ft Benton, US | daily low max | 9.4 C (48.9 F) | 1.7 C (3.1 F) | 128 years | 43 of 100 (Notable) |
| 18 May 2026 | Ft Benton, US | daily low max | 7.2 C (45.0 F) | 1.1 C (2.0 F) | 76 years | 34 of 100 (Routine) |
| 14 May 2026 | Ft Benton, US | daily high max | 33.3 C (91.9 F) | 1.1 C (2.0 F) | 123 years | 41 of 100 (Notable) |
| 6 May 2026 | Ft Benton, US | daily low min | -6.1 C (21.0 F) | 2.2 C (4.0 F) | 79 years | 38 of 100 (Notable) |
| 25 April 2026 | Ft Benton, US | daily low max | 2.2 C (36.0 F) | 1.1 C (2.0 F) | 65 years | 30 of 100 (Routine) |
| 3 April 2026 | Ft Benton, US | daily rain | 23.6 mm (0.9 in) | 7.3 mm (0.29 in) | 71 years | 20 of 100 (Routine) |
| 20 March 2026 | Ft Benton, US | monthly high min | 13.9 C (57.0 F) | 2.2 C (4.0 F) | 22 years | 28 of 100 (Routine) |
| 18 March 2026 | Ft Benton, US | monthly high min (Tie) | 11.7 C (53.1 F) | tie | 22 years | 6 of 100 (Routine) |
| 8 March 2026 | Ft Benton, US | daily high max | 21.1 C (70.0 F) | 1.7 C (3.1 F) | 72 years | 32 of 100 (Routine) |
| 8 March 2026 | Ft Benton, US | daily high min | 8.9 C (48.0 F) | 1.1 C (2.0 F) | 21 years | 17 of 100 (Routine) |
| 9 February 2026 | Ft Benton, US | daily high min | 2.2 C (36.0 F) | 0.5 C (0.9 F) | 52 years | 25 of 100 (Routine) |
| 6 February 2026 | Ft Benton, US | daily high max | 23.3 C (73.9 F) | 3.9 C (7.0 F) | 63 years | 32 of 100 (Routine) |
| 5 February 2026 | Ft Benton, US | daily high max | 22.2 C (72.0 F) | 2.8 C (5.0 F) | 84 years | 37 of 100 (Notable) |
| 5 February 2026 | Ft Benton, US | daily high min | 7.2 C (45.0 F) | 0.5 C (0.9 F) | 35 years | 20 of 100 (Routine) |
| 15 January 2026 | Ft Benton, US | daily high max | 21.1 C (70.0 F) | 2.8 C (5.0 F) | 52 years | 27 of 100 (Routine) |
Climate Trend
87 complete years, 1895 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1895 | 6.7 C | -0.77 C |
| 1902 | 5.7 C | -1.82 C |
| 1906 | 7.5 C | -0.03 C |
| 1908 | 7.4 C | -0.09 C |
| 1912 | 6.6 C | -0.94 C |
| 1938 | 8.8 C | +1.27 C |
| 1939 | 9.9 C | +2.36 C |
| 1940 | 8.1 C | +0.63 C |
| 1941 | 8.5 C | +0.94 C |
| 1942 | 7.5 C | 0.00 C |
| 1943 | 7.0 C | -0.47 C |
| 1944 | 7.5 C | 0.00 C |
| 1945 | 7.1 C | -0.46 C |
| 1946 | 8.1 C | +0.60 C |
| 1947 | 7.6 C | +0.12 C |
| 1948 | 7.0 C | -0.54 C |
| 1949 | 6.5 C | -1.03 C |
| 1950 | 5.6 C | -1.94 C |
| 1951 | 4.7 C | -2.86 C |
| 1952 | 7.6 C | +0.09 C |
| 1953 | 9.1 C | +1.60 C |
| 1954 | 7.6 C | +0.11 C |
| 1955 | 5.6 C | -1.91 C |
| 1956 | 7.9 C | +0.39 C |
| 1957 | 7.7 C | +0.16 C |
| 1958 | 8.2 C | +0.72 C |
| 1959 | 6.8 C | -0.69 C |
| 1960 | 7.5 C | 0.00 C |
| 1961 | 8.6 C | +1.04 C |
| 1962 | 7.9 C | +0.37 C |
| 1963 | 8.4 C | +0.86 C |
| 1964 | 6.8 C | -0.69 C |
| 1965 | 6.0 C | -1.50 C |
| 1966 | 6.8 C | -0.68 C |
| 1967 | 7.6 C | +0.09 C |
| 1968 | 6.8 C | -0.68 C |
| 1969 | 5.4 C | -2.13 C |
| 1970 | 6.6 C | -0.91 C |
| 1971 | 6.9 C | -0.58 C |
| 1972 | 6.5 C | -0.99 C |
| 1973 | 8.0 C | +0.53 C |
| 1974 | 8.3 C | +0.81 C |
| 1975 | 6.3 C | -1.25 C |
| 1976 | 8.8 C | +1.30 C |
| 1977 | 7.7 C | +0.17 C |
| 1978 | 5.5 C | -2.05 C |
| 1979 | 6.7 C | -0.84 C |
| 1980 | 7.6 C | +0.10 C |
| 1981 | 8.8 C | +1.31 C |
| 1982 | 5.9 C | -1.66 C |
| 1983 | 7.4 C | -0.12 C |
| 1984 | 7.9 C | +0.43 C |
| 1985 | 6.7 C | -0.85 C |
| 1986 | 8.6 C | +1.04 C |
| 1987 | 9.6 C | +2.11 C |
| 1988 | 9.7 C | +2.14 C |
| 1989 | 7.2 C | -0.36 C |
| 1990 | 8.5 C | +0.94 C |
| 1991 | 8.8 C | +1.26 C |
| 1992 | 8.9 C | +1.37 C |
| 1993 | 6.7 C | -0.86 C |
| 1995 | 7.1 C | -0.46 C |
| 1996 | 6.0 C | -1.48 C |
| 1997 | 8.8 C | +1.30 C |
| 1998 | 9.9 C | +2.37 C |
| 2002 | 7.8 C | +0.25 C |
| 2003 | 8.5 C | +1.03 C |
| 2005 | 7.8 C | +0.24 C |
| 2006 | 8.7 C | +1.19 C |
| 2007 | 8.3 C | +0.74 C |
| 2009 | 6.6 C | -0.88 C |
| 2010 | 6.3 C | -1.18 C |
| 2011 | 6.8 C | -0.74 C |
| 2012 | 8.3 C | +0.80 C |
| 2013 | 7.4 C | -0.14 C |
| 2014 | 6.8 C | -0.72 C |
| 2015 | 8.3 C | +0.79 C |
| 2016 | 8.4 C | +0.85 C |
| 2017 | 7.6 C | +0.10 C |
| 2018 | 6.3 C | -1.19 C |
| 2019 | 5.5 C | -2.04 C |
| 2020 | 8.0 C | +0.48 C |
| 2021 | 8.2 C | +0.72 C |
| 2022 | 7.5 C | +0.03 C |
| 2023 | 9.1 C | +1.57 C |
| 2024 | 8.0 C | +0.52 C |
| 2025 | 8.3 C | +0.77 C |
The fitted trend in annual mean temperature here over 1895 to 2025 is 0.06 C (-0.01 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.11 F (-0.03 to 0.25) per decade. The slope is a straight line fitted to 87 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 0.14) per decade | 0.11 F (-0.03 to 0.25) per decade | 1895 to 2025 | 87 | Not clearly different from zero |
| Mean daily maximum | 0.07 C (-0.02 to 0.16) per decade | 0.13 F (-0.04 to 0.29) per decade | 1895 to 2025 | 87 | Not clearly different from zero |
| Mean daily minimum | 0.06 C (-0.02 to 0.13) per decade | 0.10 F (-0.03 to 0.23) per decade | 1895 to 2025 | 87 | Not clearly different from zero |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1894 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.8 C (109.0 F) | 1940 | 37.8 C (100.0 F) | 110 |
| Coldest night (TNn) | -45.0 C (-49.0 F) | 1969 | -33.9 C (-29.0 F) | 110 |
| Wettest day (Rx1day) | 76.5 mm (3.0 in) | 1995 | 29.5 mm (1.2 in) | 110 |
| Wettest five days (Rx5day) | 118.5 mm (4.7 in) | 1995 | 48.7 mm (1.9 in) | 109 |
| Longest dry spell (CDD) | 103 days | 1907 | 33 days | 110 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1894 | 18.9 C (66.0 F) |
| 1895 | 36.7 C (98.1 F) |
| 1896 | 19.4 C (66.9 F) |
| 1897 | 35.6 C (96.1 F) |
| 1898 | 36.7 C (98.1 F) |
| 1899 | 38.3 C (100.9 F) |
| 1900 | 42.2 C (108.0 F) |
| 1901 | 36.7 C (98.1 F) |
| 1902 | 34.4 C (93.9 F) |
| 1903 | 33.9 C (93.0 F) |
| 1904 | 37.8 C (100.0 F) |
| 1905 | 35.6 C (96.1 F) |
| 1906 | 38.9 C (102.0 F) |
| 1907 | 32.2 C (90.0 F) |
| 1908 | 40.6 C (105.1 F) |
| 1909 | 36.7 C (98.1 F) |
| 1910 | 36.7 C (98.1 F) |
| 1911 | 35.0 C (95.0 F) |
| 1912 | 36.7 C (98.1 F) |
| 1913 | 30.6 C (87.1 F) |
| 1937 | 41.1 C (106.0 F) |
| 1938 | 37.2 C (99.0 F) |
| 1939 | 40.0 C (104.0 F) |
| 1940 | 42.8 C (109.0 F) |
| 1941 | 40.6 C (105.1 F) |
| 1942 | 37.8 C (100.0 F) |
| 1943 | 36.7 C (98.1 F) |
| 1944 | 37.2 C (99.0 F) |
| 1945 | 39.4 C (102.9 F) |
| 1946 | 39.4 C (102.9 F) |
| 1947 | 38.3 C (100.9 F) |
| 1948 | 36.7 C (98.1 F) |
| 1949 | 40.6 C (105.1 F) |
| 1950 | 36.1 C (97.0 F) |
| 1951 | 38.9 C (102.0 F) |
| 1952 | 38.3 C (100.9 F) |
| 1953 | 40.0 C (104.0 F) |
| 1954 | 37.2 C (99.0 F) |
| 1955 | 39.4 C (102.9 F) |
| 1956 | 37.2 C (99.0 F) |
| 1957 | 37.8 C (100.0 F) |
| 1958 | 37.2 C (99.0 F) |
| 1959 | 37.8 C (100.0 F) |
| 1960 | 41.1 C (106.0 F) |
| 1961 | 42.8 C (109.0 F) |
| 1962 | 35.0 C (95.0 F) |
| 1963 | 38.9 C (102.0 F) |
| 1964 | 37.8 C (100.0 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 37.2 C (99.0 F) |
| 1968 | 37.8 C (100.0 F) |
| 1969 | 40.0 C (104.0 F) |
| 1970 | 38.9 C (102.0 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 35.6 C (96.1 F) |
| 1973 | 38.3 C (100.9 F) |
| 1974 | 38.3 C (100.9 F) |
| 1975 | 37.2 C (99.0 F) |
| 1976 | 36.7 C (98.1 F) |
| 1977 | 36.1 C (97.0 F) |
| 1978 | 36.7 C (98.1 F) |
| 1979 | 36.7 C (98.1 F) |
| 1980 | 37.2 C (99.0 F) |
| 1981 | 39.4 C (102.9 F) |
| 1982 | 35.6 C (96.1 F) |
| 1983 | 40.6 C (105.1 F) |
| 1984 | 41.1 C (106.0 F) |
| 1985 | 39.4 C (102.9 F) |
| 1986 | 37.2 C (99.0 F) |
| 1987 | 37.8 C (100.0 F) |
| 1988 | 40.0 C (104.0 F) |
| 1989 | 37.8 C (100.0 F) |
| 1990 | 40.6 C (105.1 F) |
| 1991 | 39.4 C (102.9 F) |
| 1992 | 37.2 C (99.0 F) |
| 1993 | 37.2 C (99.0 F) |
| 1994 | 37.8 C (100.0 F) |
| 1995 | 35.6 C (96.1 F) |
| 1996 | 36.7 C (98.1 F) |
| 1997 | 37.8 C (100.0 F) |
| 1998 | 38.3 C (100.9 F) |
| 1999 | 39.4 C (102.9 F) |
| 2000 | 40.0 C (104.0 F) |
| 2001 | 39.4 C (102.9 F) |
| 2002 | 38.9 C (102.0 F) |
| 2003 | 40.0 C (104.0 F) |
| 2004 | 37.8 C (100.0 F) |
| 2005 | 38.3 C (100.9 F) |
| 2006 | 37.2 C (99.0 F) |
| 2007 | 40.6 C (105.1 F) |
| 2008 | 36.7 C (98.1 F) |
| 2009 | 36.7 C (98.1 F) |
| 2010 | 38.9 C (102.0 F) |
| 2011 | 39.4 C (102.9 F) |
| 2012 | 38.3 C (100.9 F) |
| 2013 | 37.8 C (100.0 F) |
| 2014 | 36.7 C (98.1 F) |
| 2015 | 38.9 C (102.0 F) |
| 2016 | 36.7 C (98.1 F) |
| 2017 | 38.9 C (102.0 F) |
| 2018 | 40.0 C (104.0 F) |
| 2019 | 37.2 C (99.0 F) |
| 2020 | 38.9 C (102.0 F) |
| 2021 | 39.4 C (102.9 F) |
| 2022 | 40.0 C (104.0 F) |
| 2023 | 40.6 C (105.1 F) |
| 2024 | 41.1 C (106.0 F) |
| 2025 | 37.8 C (100.0 F) |
| 2026 | 41.7 C (107.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1894 | -30.0 C (-22.0 F) |
| 1895 | -42.8 C (-45.0 F) |
| 1896 | -35.0 C (-31.0 F) |
| 1897 | -37.2 C (-35.0 F) |
| 1898 | -27.8 C (-18.0 F) |
| 1899 | -34.4 C (-29.9 F) |
| 1900 | -27.8 C (-18.0 F) |
| 1901 | -34.4 C (-29.9 F) |
| 1902 | -32.2 C (-26.0 F) |
| 1903 | -32.2 C (-26.0 F) |
| 1904 | -31.1 C (-24.0 F) |
| 1905 | -42.2 C (-44.0 F) |
| 1906 | -37.2 C (-35.0 F) |
| 1907 | -38.9 C (-38.0 F) |
| 1908 | -25.6 C (-14.1 F) |
| 1909 | -42.2 C (-44.0 F) |
| 1910 | -41.1 C (-42.0 F) |
| 1911 | -40.0 C (-40.0 F) |
| 1912 | -35.0 C (-31.0 F) |
| 1913 | -39.4 C (-38.9 F) |
| 1937 | -26.7 C (-16.1 F) |
| 1938 | -32.8 C (-27.0 F) |
| 1939 | -36.7 C (-34.1 F) |
| 1940 | -31.7 C (-25.1 F) |
| 1941 | -29.4 C (-20.9 F) |
| 1942 | -34.4 C (-29.9 F) |
| 1943 | -40.6 C (-41.1 F) |
| 1944 | -28.3 C (-18.9 F) |
| 1945 | -32.2 C (-26.0 F) |
| 1946 | -31.1 C (-24.0 F) |
| 1947 | -35.6 C (-32.1 F) |
| 1948 | -30.6 C (-23.1 F) |
| 1949 | -39.4 C (-38.9 F) |
| 1950 | -42.8 C (-45.0 F) |
| 1951 | -37.2 C (-35.0 F) |
| 1952 | -37.8 C (-36.0 F) |
| 1953 | -22.8 C (-9.0 F) |
| 1954 | -42.8 C (-45.0 F) |
| 1955 | -30.0 C (-22.0 F) |
| 1956 | -35.6 C (-32.1 F) |
| 1957 | -43.3 C (-45.9 F) |
| 1958 | -27.2 C (-17.0 F) |
| 1959 | -32.8 C (-27.0 F) |
| 1960 | -34.4 C (-29.9 F) |
| 1961 | -30.0 C (-22.0 F) |
| 1962 | -33.3 C (-27.9 F) |
| 1963 | -35.6 C (-32.1 F) |
| 1964 | -33.9 C (-29.0 F) |
| 1965 | -30.0 C (-22.0 F) |
| 1966 | -33.9 C (-29.0 F) |
| 1967 | -31.7 C (-25.1 F) |
| 1968 | -40.0 C (-40.0 F) |
| 1969 | -45.0 C (-49.0 F) |
| 1970 | -30.6 C (-23.1 F) |
| 1971 | -34.4 C (-29.9 F) |
| 1972 | -37.8 C (-36.0 F) |
| 1973 | -28.3 C (-18.9 F) |
| 1974 | -37.8 C (-36.0 F) |
| 1975 | -30.0 C (-22.0 F) |
| 1976 | -31.1 C (-24.0 F) |
| 1977 | -37.2 C (-35.0 F) |
| 1978 | -34.4 C (-29.9 F) |
| 1979 | -39.4 C (-38.9 F) |
| 1980 | -33.9 C (-29.0 F) |
| 1981 | -28.3 C (-18.9 F) |
| 1982 | -38.3 C (-36.9 F) |
| 1983 | -42.8 C (-45.0 F) |
| 1984 | -31.1 C (-24.0 F) |
| 1985 | -35.6 C (-32.1 F) |
| 1986 | -30.0 C (-22.0 F) |
| 1987 | -25.0 C (-13.0 F) |
| 1988 | -27.2 C (-17.0 F) |
| 1989 | -37.2 C (-35.0 F) |
| 1990 | -40.0 C (-40.0 F) |
| 1991 | -33.9 C (-29.0 F) |
| 1992 | -33.3 C (-27.9 F) |
| 1993 | -33.3 C (-27.9 F) |
| 1994 | -38.3 C (-36.9 F) |
| 1995 | -27.2 C (-17.0 F) |
| 1996 | -37.8 C (-36.0 F) |
| 1997 | -35.6 C (-32.1 F) |
| 1998 | -33.9 C (-29.0 F) |
| 1999 | -25.0 C (-13.0 F) |
| 2000 | -28.3 C (-18.9 F) |
| 2001 | -24.4 C (-11.9 F) |
| 2002 | -29.4 C (-20.9 F) |
| 2003 | -32.8 C (-27.0 F) |
| 2004 | -32.8 C (-27.0 F) |
| 2005 | -35.0 C (-31.0 F) |
| 2006 | -28.3 C (-18.9 F) |
| 2007 | -25.0 C (-13.0 F) |
| 2008 | -32.8 C (-27.0 F) |
| 2009 | -34.4 C (-29.9 F) |
| 2010 | -36.1 C (-33.0 F) |
| 2011 | -33.3 C (-27.9 F) |
| 2012 | -30.6 C (-23.1 F) |
| 2013 | -38.3 C (-36.9 F) |
| 2014 | -35.0 C (-31.0 F) |
| 2015 | -31.1 C (-24.0 F) |
| 2016 | -33.3 C (-27.9 F) |
| 2017 | -34.4 C (-29.9 F) |
| 2018 | -34.4 C (-29.9 F) |
| 2019 | -35.0 C (-31.0 F) |
| 2020 | -25.0 C (-13.0 F) |
| 2021 | -37.8 C (-36.0 F) |
| 2022 | -36.7 C (-34.1 F) |
| 2023 | -30.6 C (-23.1 F) |
| 2024 | -38.3 C (-36.9 F) |
| 2025 | -36.1 C (-33.0 F) |
| 2026 | -24.4 C (-11.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1894 | 9.1 mm (0.36 in) |
| 1895 | 50.8 mm (2.0 in) |
| 1896 | 11.4 mm (0.4 in) |
| 1897 | 41.9 mm (1.6 in) |
| 1898 | 39.4 mm (1.6 in) |
| 1899 | 21.3 mm (0.8 in) |
| 1900 | 10.2 mm (0.4 in) |
| 1901 | 19.1 mm (0.8 in) |
| 1902 | 5.1 mm (0.20 in) |
| 1903 | 12.7 mm (0.5 in) |
| 1904 | 7.6 mm (0.30 in) |
| 1905 | 24.1 mm (0.9 in) |
| 1906 | 20.3 mm (0.8 in) |
| 1907 | 27.9 mm (1.1 in) |
| 1908 | 26.7 mm (1.1 in) |
| 1909 | 36.8 mm (1.4 in) |
| 1910 | 16.5 mm (0.6 in) |
| 1911 | 29.2 mm (1.1 in) |
| 1912 | 22.9 mm (0.9 in) |
| 1913 | 15.2 mm (0.6 in) |
| 1937 | 15.0 mm (0.6 in) |
| 1938 | 39.1 mm (1.5 in) |
| 1939 | 23.6 mm (0.9 in) |
| 1940 | 27.4 mm (1.1 in) |
| 1941 | 36.3 mm (1.4 in) |
| 1942 | 26.7 mm (1.1 in) |
| 1943 | 42.7 mm (1.7 in) |
| 1944 | 30.0 mm (1.2 in) |
| 1945 | 30.5 mm (1.2 in) |
| 1946 | 27.2 mm (1.1 in) |
| 1947 | 31.5 mm (1.2 in) |
| 1948 | 24.9 mm (1.0 in) |
| 1949 | 51.6 mm (2.0 in) |
| 1950 | 41.7 mm (1.6 in) |
| 1951 | 51.6 mm (2.0 in) |
| 1952 | 11.4 mm (0.4 in) |
| 1953 | 46.2 mm (1.8 in) |
| 1954 | 72.1 mm (2.8 in) |
| 1955 | 28.4 mm (1.1 in) |
| 1956 | 17.5 mm (0.7 in) |
| 1957 | 22.9 mm (0.9 in) |
| 1958 | 27.2 mm (1.1 in) |
| 1959 | 37.3 mm (1.5 in) |
| 1960 | 26.4 mm (1.0 in) |
| 1961 | 17.5 mm (0.7 in) |
| 1962 | 67.3 mm (2.6 in) |
| 1963 | 18.0 mm (0.7 in) |
| 1964 | 68.6 mm (2.7 in) |
| 1965 | 35.1 mm (1.4 in) |
| 1966 | 32.0 mm (1.3 in) |
| 1967 | 29.0 mm (1.1 in) |
| 1968 | 48.3 mm (1.9 in) |
| 1969 | 30.2 mm (1.2 in) |
| 1970 | 22.6 mm (0.9 in) |
| 1971 | 17.0 mm (0.7 in) |
| 1972 | 33.5 mm (1.3 in) |
| 1973 | 46.2 mm (1.8 in) |
| 1974 | 41.9 mm (1.6 in) |
| 1975 | 57.9 mm (2.3 in) |
| 1976 | 18.3 mm (0.7 in) |
| 1977 | 43.7 mm (1.7 in) |
| 1978 | 41.9 mm (1.6 in) |
| 1979 | 45.5 mm (1.8 in) |
| 1980 | 43.2 mm (1.7 in) |
| 1981 | 43.2 mm (1.7 in) |
| 1982 | 60.7 mm (2.4 in) |
| 1983 | 60.7 mm (2.4 in) |
| 1984 | 33.5 mm (1.3 in) |
| 1985 | 38.6 mm (1.5 in) |
| 1986 | 32.0 mm (1.3 in) |
| 1987 | 33.0 mm (1.3 in) |
| 1988 | 36.8 mm (1.4 in) |
| 1989 | 34.3 mm (1.4 in) |
| 1990 | 29.2 mm (1.1 in) |
| 1991 | 26.7 mm (1.1 in) |
| 1992 | 23.6 mm (0.9 in) |
| 1993 | 31.0 mm (1.2 in) |
| 1994 | 18.3 mm (0.7 in) |
| 1995 | 76.5 mm (3.0 in) |
| 1996 | 24.6 mm (1.0 in) |
| 1997 | 22.4 mm (0.9 in) |
| 1998 | 27.4 mm (1.1 in) |
| 1999 | 47.2 mm (1.9 in) |
| 2000 | 20.8 mm (0.8 in) |
| 2001 | 23.1 mm (0.9 in) |
| 2002 | 55.4 mm (2.2 in) |
| 2003 | 19.6 mm (0.8 in) |
| 2004 | 28.7 mm (1.1 in) |
| 2005 | 29.5 mm (1.2 in) |
| 2006 | 25.4 mm (1.0 in) |
| 2007 | 22.1 mm (0.9 in) |
| 2008 | 18.0 mm (0.7 in) |
| 2009 | 29.5 mm (1.2 in) |
| 2010 | 33.8 mm (1.3 in) |
| 2011 | 29.7 mm (1.2 in) |
| 2012 | 27.2 mm (1.1 in) |
| 2013 | 41.7 mm (1.6 in) |
| 2014 | 49.0 mm (1.9 in) |
| 2015 | 34.5 mm (1.4 in) |
| 2016 | 24.4 mm (1.0 in) |
| 2017 | 19.6 mm (0.8 in) |
| 2018 | 30.7 mm (1.2 in) |
| 2019 | 25.1 mm (1.0 in) |
| 2020 | 30.2 mm (1.2 in) |
| 2021 | 24.4 mm (1.0 in) |
| 2022 | 27.4 mm (1.1 in) |
| 2023 | 38.1 mm (1.5 in) |
| 2024 | 40.9 mm (1.6 in) |
| 2025 | 38.9 mm (1.5 in) |
| 2026 | 32.5 mm (1.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1894 | n/a |
| 1895 | 62.2 mm (2.4 in) |
| 1896 | 19.0 mm (0.7 in) |
| 1897 | 77.4 mm (3.0 in) |
| 1898 | 71.2 mm (2.8 in) |
| 1899 | 36.8 mm (1.4 in) |
| 1900 | 15.3 mm (0.6 in) |
| 1901 | 39.4 mm (1.6 in) |
| 1902 | 12.6 mm (0.5 in) |
| 1903 | 20.3 mm (0.8 in) |
| 1904 | 15.2 mm (0.6 in) |
| 1905 | 24.1 mm (0.9 in) |
| 1906 | 40.7 mm (1.6 in) |
| 1907 | 33.0 mm (1.3 in) |
| 1908 | 53.4 mm (2.1 in) |
| 1909 | 60.9 mm (2.4 in) |
| 1910 | 25.1 mm (1.0 in) |
| 1911 | 74.9 mm (2.9 in) |
| 1912 | 44.5 mm (1.8 in) |
| 1913 | 22.8 mm (0.9 in) |
| 1937 | 20.6 mm (0.8 in) |
| 1938 | 61.5 mm (2.4 in) |
| 1939 | 57.8 mm (2.3 in) |
| 1940 | 27.4 mm (1.1 in) |
| 1941 | 49.3 mm (1.9 in) |
| 1942 | 46.2 mm (1.8 in) |
| 1943 | 77.4 mm (3.0 in) |
| 1944 | 32.5 mm (1.3 in) |
| 1945 | 62.5 mm (2.5 in) |
| 1946 | 49.0 mm (1.9 in) |
| 1947 | 54.8 mm (2.2 in) |
| 1948 | 45.5 mm (1.8 in) |
| 1949 | 62.6 mm (2.5 in) |
| 1950 | 51.2 mm (2.0 in) |
| 1951 | 62.3 mm (2.5 in) |
| 1952 | 18.0 mm (0.7 in) |
| 1953 | 84.6 mm (3.3 in) |
| 1954 | 88.8 mm (3.5 in) |
| 1955 | 48.6 mm (1.9 in) |
| 1956 | 41.9 mm (1.6 in) |
| 1957 | 53.2 mm (2.1 in) |
| 1958 | 42.5 mm (1.7 in) |
| 1959 | 68.8 mm (2.7 in) |
| 1960 | 58.1 mm (2.3 in) |
| 1961 | 24.1 mm (0.9 in) |
| 1962 | 80.3 mm (3.2 in) |
| 1963 | 30.8 mm (1.2 in) |
| 1964 | 99.4 mm (3.9 in) |
| 1965 | 70.4 mm (2.8 in) |
| 1966 | 42.4 mm (1.7 in) |
| 1967 | 51.3 mm (2.0 in) |
| 1968 | 65.6 mm (2.6 in) |
| 1969 | 85.3 mm (3.4 in) |
| 1970 | 52.6 mm (2.1 in) |
| 1971 | 31.5 mm (1.2 in) |
| 1972 | 33.5 mm (1.3 in) |
| 1973 | 63.0 mm (2.5 in) |
| 1974 | 48.0 mm (1.9 in) |
| 1975 | 118.1 mm (4.6 in) |
| 1976 | 52.3 mm (2.1 in) |
| 1977 | 46.2 mm (1.8 in) |
| 1978 | 64.0 mm (2.5 in) |
| 1979 | 91.1 mm (3.6 in) |
| 1980 | 68.3 mm (2.7 in) |
| 1981 | 74.1 mm (2.9 in) |
| 1982 | 117.6 mm (4.6 in) |
| 1983 | 79.2 mm (3.1 in) |
| 1984 | 38.4 mm (1.5 in) |
| 1985 | 65.6 mm (2.6 in) |
| 1986 | 43.3 mm (1.7 in) |
| 1987 | 43.4 mm (1.7 in) |
| 1988 | 48.7 mm (1.9 in) |
| 1989 | 73.9 mm (2.9 in) |
| 1990 | 47.2 mm (1.9 in) |
| 1991 | 28.2 mm (1.1 in) |
| 1992 | 44.8 mm (1.8 in) |
| 1993 | 55.1 mm (2.2 in) |
| 1994 | 35.9 mm (1.4 in) |
| 1995 | 118.5 mm (4.7 in) |
| 1996 | 33.1 mm (1.3 in) |
| 1997 | 37.0 mm (1.5 in) |
| 1998 | 49.1 mm (1.9 in) |
| 1999 | 57.9 mm (2.3 in) |
| 2000 | 29.2 mm (1.1 in) |
| 2001 | 28.4 mm (1.1 in) |
| 2002 | 83.9 mm (3.3 in) |
| 2003 | 32.3 mm (1.3 in) |
| 2004 | 57.9 mm (2.3 in) |
| 2005 | 62.5 mm (2.5 in) |
| 2006 | 62.7 mm (2.5 in) |
| 2007 | 28.7 mm (1.1 in) |
| 2008 | 41.8 mm (1.6 in) |
| 2009 | 44.4 mm (1.7 in) |
| 2010 | 55.9 mm (2.2 in) |
| 2011 | 65.2 mm (2.6 in) |
| 2012 | 39.9 mm (1.6 in) |
| 2013 | 66.6 mm (2.6 in) |
| 2014 | 87.7 mm (3.5 in) |
| 2015 | 45.6 mm (1.8 in) |
| 2016 | 42.2 mm (1.7 in) |
| 2017 | 31.5 mm (1.2 in) |
| 2018 | 38.1 mm (1.5 in) |
| 2019 | 36.6 mm (1.4 in) |
| 2020 | 43.9 mm (1.7 in) |
| 2021 | 30.0 mm (1.2 in) |
| 2022 | 41.4 mm (1.6 in) |
| 2023 | 41.2 mm (1.6 in) |
| 2024 | 63.3 mm (2.5 in) |
| 2025 | 60.0 mm (2.4 in) |
| 2026 | 61.7 mm (2.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1894 | 1 day |
| 1895 | 32 days |
| 1896 | 54 days |
| 1897 | 55 days |
| 1898 | 30 days |
| 1899 | 60 days |
| 1900 | 34 days |
| 1901 | 31 days |
| 1902 | 68 days |
| 1903 | 32 days |
| 1904 | 17 days |
| 1905 | 30 days |
| 1906 | 35 days |
| 1907 | 103 days |
| 1908 | 61 days |
| 1909 | 55 days |
| 1910 | 46 days |
| 1911 | 33 days |
| 1912 | 64 days |
| 1913 | 25 days |
| 1937 | 28 days |
| 1938 | 29 days |
| 1939 | 39 days |
| 1940 | 40 days |
| 1941 | 42 days |
| 1942 | 26 days |
| 1943 | 36 days |
| 1944 | 34 days |
| 1945 | 42 days |
| 1946 | 39 days |
| 1947 | 32 days |
| 1948 | 26 days |
| 1949 | 31 days |
| 1950 | 36 days |
| 1951 | 32 days |
| 1952 | 32 days |
| 1953 | 31 days |
| 1954 | 34 days |
| 1955 | 77 days |
| 1956 | 32 days |
| 1957 | 35 days |
| 1958 | 17 days |
| 1959 | 29 days |
| 1960 | 42 days |
| 1961 | 32 days |
| 1962 | 35 days |
| 1963 | 30 days |
| 1964 | 26 days |
| 1965 | 50 days |
| 1966 | 37 days |
| 1967 | 43 days |
| 1968 | 25 days |
| 1969 | 36 days |
| 1970 | 23 days |
| 1971 | 32 days |
| 1972 | 33 days |
| 1973 | 41 days |
| 1974 | 31 days |
| 1975 | 32 days |
| 1976 | 35 days |
| 1977 | 40 days |
| 1978 | 33 days |
| 1979 | 24 days |
| 1980 | 27 days |
| 1981 | 32 days |
| 1982 | 41 days |
| 1983 | 23 days |
| 1984 | 63 days |
| 1985 | 42 days |
| 1986 | 25 days |
| 1987 | 95 days |
| 1988 | 45 days |
| 1989 | 18 days |
| 1990 | 34 days |
| 1991 | 33 days |
| 1992 | 34 days |
| 1993 | 26 days |
| 1994 | 26 days |
| 1995 | 24 days |
| 1996 | 28 days |
| 1997 | 32 days |
| 1998 | 26 days |
| 1999 | 64 days |
| 2000 | 20 days |
| 2001 | 35 days |
| 2002 | 28 days |
| 2003 | 35 days |
| 2004 | 60 days |
| 2005 | 53 days |
| 2006 | 34 days |
| 2007 | 86 days |
| 2008 | 40 days |
| 2009 | 37 days |
| 2010 | 30 days |
| 2011 | 34 days |
| 2012 | 48 days |
| 2013 | 25 days |
| 2014 | 25 days |
| 2015 | 28 days |
| 2016 | 42 days |
| 2017 | 42 days |
| 2018 | 24 days |
| 2019 | 25 days |
| 2020 | 33 days |
| 2021 | 62 days |
| 2022 | 28 days |
| 2023 | 23 days |
| 2024 | 36 days |
| 2025 | 35 days |
| 2026 | 28 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
87 years with a frostAcross 87 years with a frost, the median last spring frost at Ft Benton falls on 16 May and the median first autumn frost on 18 September, which leaves a median of 123 days between them.
In 1990 to 2025 the median growing season was 134 days. That is 10 days more than in 1895 to 1962.
Fitted over all years, the growing season changes by +0.6 days per decade at this station.
| Measure | Median, all years | Earliest period (1895 to 1962) | Recent period (1990 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 16 May | 15 May | 13 May | 2 days earlier | -0.1 days per decade |
| First autumn frost | 18 September | 18 September | 22 September | 4 days later | +0.4 days per decade |
| Growing days | 123 days | 124 days | 134 days | 10 days more | +0.6 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
93 years, 1897 to 2025A day with at least 31.7 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 79.1 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 | 31.7 mm (1.2 in) | |
| 5 years | 43.3 mm (1.7 in) | |
| 10 years | 51.4 mm (2.0 in) | |
| 25 years | 62.1 mm (2.4 in) | |
| 50 years | 70.5 mm (2.8 in) | |
| 100 years | 79.1 mm (3.1 in) | Longer than the 93 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 93 years of values from 1897 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: 76.5 mm (3.0 in) in 1995; 72.1 mm (2.8 in) in 1954; 68.6 mm (2.7 in) in 1964.
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, Ft Benton had a mean temperature of 7.6 C (45.7 F) and 353.8 mm (13.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Buffalo (United States, 493 km away), Casper-Natrona Co AP (United States, 638 km away) and Hay Springs 12 S (United States, 859 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Buffalo | United States | 493 km (306 mi) | 7.5 C (45.5 F) | 328.7 mm (12.9 in) | 1.04 |
| Casper-Natrona Co AP | United States | 638 km (396 mi) | 7.3 C (45.1 F) | 318.9 mm (12.6 in) | 1.04 |
| Hay Springs 12 S | United States | 859 km (534 mi) | 8.1 C (46.5 F) | 398.1 mm (15.7 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).