Butte Bert Mooney AP Weather Records (USW00024135)
Record envelope, standing records and threshold days for Butte Bert Mooney AP (USW00024135), Montana, United States, with 133 years of record.
Key Facts for Butte Bert Mooney AP
- Butte Bert Mooney AP (USW00024135) is a weather station in Montana, United States at 45.96 latitude and -112.50 longitude, 1,678 m (5,505 ft) above sea level.
- The station reports from 1894 to 2026, 133 years of record.
- 1,464 records set at Butte Bert Mooney AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Butte Bert Mooney AP set a daily record precipitation of 15.5 mm (0.6 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, 45.96 latitude, -112.50 longitude.
- Elevation: 1,678 m (5,505 ft).
- Period of record: 1894 to 2026, 133 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
11 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 14.4 C (57.9 F) | -44.4 C (-47.9 F) | 11.1 C (52.0 F) | -21.7 C (-7.1 F) |
| Feb | 16.1 C (61.0 F) | -46.7 C (-52.1 F) | 15.6 C (60.1 F) | -21.7 C (-7.1 F) |
| Mar | 21.1 C (70.0 F) | -37.8 C (-36.0 F) | 21.1 C (70.0 F) | -10.6 C (12.9 F) |
| Apr | 28.3 C (82.9 F) | -26.7 C (-16.1 F) | 23.3 C (73.9 F) | -8.9 C (16.0 F) |
| May | 32.2 C (90.0 F) | -12.8 C (9.0 F) | 28.9 C (84.0 F) | -7.2 C (19.0 F) |
| Jun | 36.1 C (97.0 F) | -5.6 C (21.9 F) | 27.2 C (81.0 F) | -2.2 C (28.0 F) |
| Jul | 37.8 C (100.0 F) | -2.2 C (28.0 F) | 35.0 C (95.0 F) | 4.4 C (39.9 F) |
| Aug | 37.2 C (99.0 F) | -5.0 C (23.0 F) | 35.0 C (95.0 F) | 0.0 C (32.0 F) |
| Sep | 35.6 C (96.1 F) | -16.1 C (3.0 F) | 26.7 C (80.1 F) | -2.8 C (27.0 F) |
| Oct | 29.4 C (84.9 F) | -30.6 C (-23.1 F) | 26.7 C (80.1 F) | -3.9 C (25.0 F) |
| Nov | 21.1 C (70.0 F) | -41.1 C (-42.0 F) | n/a | n/a |
| Dec | 18.9 C (66.0 F) | -46.7 C (-52.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1894 | 9 |
| 1895 | 6 |
| 1896 | 22 |
| 1897 | 16 |
| 1898 | 9 |
| 1899 | 16 |
| 1900 | 21 |
| 1901 | 5 |
| 1902 | 14 |
| 1903 | 9 |
| 1904 | 8 |
| 1905 | 8 |
| 1906 | 17 |
| 1907 | 12 |
| 1908 | 21 |
| 1909 | 7 |
| 1910 | 27 |
| 1911 | 16 |
| 1912 | 10 |
| 1913 | 13 |
| 1914 | 19 |
| 1915 | 8 |
| 1916 | 19 |
| 1917 | 22 |
| 1918 | 27 |
| 1919 | 27 |
| 1920 | 13 |
| 1921 | 20 |
| 1922 | 9 |
| 1923 | 4 |
| 1924 | 20 |
| 1925 | 5 |
| 1926 | 12 |
| 1927 | 7 |
| 1928 | 13 |
| 1929 | 7 |
| 1930 | 22 |
| 1931 | 6 |
| 1932 | 9 |
| 1933 | 18 |
| 1934 | 12 |
| 1935 | 9 |
| 1936 | 25 |
| 1937 | 15 |
| 1938 | 5 |
| 1940 | 4 |
| 1941 | 4 |
| 1942 | 12 |
| 1943 | 13 |
| 1944 | 5 |
| 1945 | 6 |
| 1946 | 6 |
| 1947 | 9 |
| 1948 | 10 |
| 1949 | 11 |
| 1950 | 22 |
| 1951 | 14 |
| 1952 | 6 |
| 1953 | 6 |
| 1954 | 7 |
| 1955 | 18 |
| 1956 | 2 |
| 1957 | 6 |
| 1958 | 7 |
| 1959 | 10 |
| 1960 | 14 |
| 1961 | 6 |
| 1962 | 17 |
| 1963 | 14 |
| 1964 | 10 |
| 1965 | 20 |
| 1966 | 11 |
| 1967 | 7 |
| 1968 | 9 |
| 1969 | 14 |
| 1970 | 4 |
| 1971 | 12 |
| 1972 | 17 |
| 1973 | 7 |
| 1974 | 14 |
| 1975 | 25 |
| 1976 | 5 |
| 1977 | 7 |
| 1978 | 14 |
| 1979 | 7 |
| 1980 | 9 |
| 1981 | 12 |
| 1982 | 7 |
| 1983 | 21 |
| 1984 | 7 |
| 1985 | 25 |
| 1986 | 6 |
| 1987 | 15 |
| 1988 | 2 |
| 1989 | 13 |
| 1990 | 9 |
| 1991 | 8 |
| 1992 | 14 |
| 1993 | 10 |
| 1994 | 8 |
| 1995 | 6 |
| 1996 | 14 |
| 1997 | 3 |
| 1998 | 9 |
| 1999 | 15 |
| 2000 | 8 |
| 2001 | 4 |
| 2002 | 11 |
| 2003 | 11 |
| 2004 | 6 |
| 2005 | 12 |
| 2006 | 7 |
| 2007 | 5 |
| 2008 | 11 |
| 2009 | 9 |
| 2010 | 6 |
| 2012 | 6 |
| 2013 | 9 |
| 2015 | 13 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 6 |
| 2019 | 9 |
| 2020 | 9 |
| 2021 | 16 |
| 2022 | 16 |
| 2023 | 8 |
| 2024 | 8 |
| 2025 | 12 |
| 2026 | 11 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1930-01-17 | Record low minimum temperature | Record low minimum temperature -36.7 C (-34.1 F) |
| 1931-07-22 | Record high maximum temperature | Record high maximum temperature 37.8 C (100.0 F) |
| 1932-12-09 | Record low minimum temperature | Record low minimum temperature -38.3 C (-36.9 F) |
| 1933-02-07 | Record low minimum temperature | Record low minimum temperature -40.6 C (-41.1 F) |
| 1933-02-09 | Record low minimum temperature | Record low minimum temperature -46.7 C (-52.1 F) |
| 1962-01-21 | Record low maximum temperature | Record low maximum temperature -31.7 C (-25.1 F) |
| 1996-12-26 | Record snow depth | Record snow depth 61.0 cm (24.0 in) |
| 1996-12-28 | Record snow depth | Record snow depth 68.6 cm (27.0 in) |
Wettest Day of Each Month
Jun: 76.2 mm (3.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 25.4 mm (1.0 in) | 28 January 1899 |
| Feb | 22.9 mm (0.9 in) | 12 February 1904 |
| Mar | 30.5 mm (1.2 in) | 4 March 1918 |
| Apr | 27.9 mm (1.1 in) | 22 April 1899 |
| May | 63.5 mm (2.5 in) | 28 May 1927 |
| Jun | 76.2 mm (3.0 in) | 8 June 1913 |
| Jul | 34.0 mm (1.3 in) | 31 July 1937 |
| Aug | 51.3 mm (2.0 in) | 2 August 1943 |
| Sep | 36.8 mm (1.4 in) | 17 September 1908 |
| Oct | 58.4 mm (2.3 in) | 10 October 1911 |
| Nov | 30.5 mm (1.2 in) | 20 November 1921 |
| Dec | 32.5 mm (1.3 in) | 11 December 1919 |
Period of Record Coverage
1894 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1894 | 274 | 75% | No |
| 1895 | 363 | 99% | Yes |
| 1896 | 363 | 99% | Yes |
| 1897 | 350 | 96% | Yes |
| 1898 | 237 | 65% | No |
| 1899 | 331 | 91% | Yes |
| 1900 | 364 | 100% | Yes |
| 1901 | 364 | 100% | Yes |
| 1902 | 360 | 99% | Yes |
| 1903 | 364 | 100% | Yes |
| 1904 | 364 | 99% | Yes |
| 1905 | 358 | 98% | Yes |
| 1906 | 363 | 99% | Yes |
| 1907 | 365 | 100% | Yes |
| 1908 | 362 | 99% | Yes |
| 1909 | 360 | 99% | Yes |
| 1910 | 351 | 96% | Yes |
| 1911 | 364 | 100% | Yes |
| 1912 | 365 | 100% | Yes |
| 1913 | 350 | 96% | Yes |
| 1914 | 361 | 99% | Yes |
| 1915 | 361 | 99% | Yes |
| 1916 | 365 | 100% | Yes |
| 1917 | 364 | 100% | Yes |
| 1918 | 363 | 99% | Yes |
| 1919 | 364 | 100% | Yes |
| 1920 | 363 | 99% | Yes |
| 1921 | 363 | 99% | Yes |
| 1922 | 361 | 99% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 364 | 99% | Yes |
| 1925 | 364 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 364 | 100% | Yes |
| 1928 | 362 | 99% | Yes |
| 1929 | 356 | 98% | Yes |
| 1930 | 363 | 99% | Yes |
| 1931 | 276 | 76% | No |
| 1932 | 366 | 100% | Yes |
| 1933 | 364 | 100% | Yes |
| 1934 | 361 | 99% | Yes |
| 1935 | 361 | 99% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 363 | 99% | Yes |
| 1939 | 58 | 16% | No |
| 1940 | 244 | 67% | No |
| 1941 | 363 | 99% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 365 | 100% | Yes |
| 1945 | 363 | 99% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | 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 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 362 | 99% | Yes |
| 1994 | 364 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 1 | 0% | No |
| 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 | 363 | 99% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 359 | 98% | Yes |
| 2026 | 286 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 October 2026 | Butte Bert Mooney AP, US | daily rain (Provisional) | 15.5 mm (0.6 in) | 1.8 mm (0.07 in) | 51 years | 20 of 100 (Routine) |
| 5 October 2026 | Butte Bert Mooney AP, US | daily high max (Provisional) | 26.7 C (80.1 F) | 0.6 C (1.1 F) | 124 years | 40 of 100 (Notable) |
| 19 September 2026 | Butte Bert Mooney AP, US | daily high min (Tie, Provisional) | 10.0 C (50.0 F) | tie | 127 years | 10 of 100 (Routine) |
| 1 August 2026 | Butte Bert Mooney AP, US | daily high max (Tie) | 35.0 C (95.0 F) | tie | 25 years | 4 of 100 (Routine) |
| 28 June 2026 | Butte Bert Mooney AP, US | daily rain | 29.0 mm (1.1 in) | 5.1 mm (0.20 in) | 105 years | 48 of 100 (Notable) |
| 28 June 2026 | Butte Bert Mooney AP, US | daily low max | 7.8 C (46.0 F) | 1.6 C (2.9 F) | 72 years | 33 of 100 (Routine) |
| 8 June 2026 | Butte Bert Mooney AP, US | daily low min (Tie) | -2.2 C (28.0 F) | tie | 76 years | 8 of 100 (Routine) |
| 19 May 2026 | Butte Bert Mooney AP, US | daily low min | -7.2 C (19.0 F) | 1.6 C (2.9 F) | 23 years | 20 of 100 (Routine) |
| 11 April 2026 | Butte Bert Mooney AP, US | daily rain | 23.6 mm (0.9 in) | 1.2 mm (0.05 in) | 109 years | 20 of 100 (Routine) |
| 25 March 2026 | Butte Bert Mooney AP, US | daily high min | 2.8 C (37.0 F) | 0.6 C (1.1 F) | 125 years | 40 of 100 (Notable) |
| 20 March 2026 | Butte Bert Mooney AP, US | monthly high max | 21.1 C (70.0 F) | 0.5 C (0.9 F) | 32 years | 29 of 100 (Routine) |
| 19 March 2026 | Butte Bert Mooney AP, US | daily high max | 20.0 C (68.0 F) | 1.7 C (3.1 F) | 116 years | 42 of 100 (Notable) |
| 18 March 2026 | Butte Bert Mooney AP, US | daily high max (Tie) | 18.9 C (66.0 F) | tie | 8 years | 3 of 100 (Routine) |
| 17 March 2026 | Butte Bert Mooney AP, US | daily high min | 5.6 C (42.1 F) | 1.7 C (3.1 F) | 104 years | 42 of 100 (Notable) |
| 8 March 2026 | Butte Bert Mooney AP, US | daily high min | 3.9 C (39.0 F) | 1.7 C (3.1 F) | 121 years | 42 of 100 (Notable) |
| 8 February 2026 | Butte Bert Mooney AP, US | daily high min | 1.7 C (35.1 F) | 0.6 C (1.1 F) | 119 years | 40 of 100 (Notable) |
| 6 February 2026 | Butte Bert Mooney AP, US | daily high max | 15.6 C (60.1 F) | 2.8 C (5.0 F) | 11 years | 17 of 100 (Routine) |
| 5 February 2026 | Butte Bert Mooney AP, US | daily high max | 15.0 C (59.0 F) | 1.1 C (2.0 F) | 92 years | 38 of 100 (Notable) |
| 14 January 2026 | Butte Bert Mooney AP, US | daily high max (Tie) | 11.1 C (52.0 F) | tie | 106 years | 10 of 100 (Routine) |
| 12 January 2026 | Butte Bert Mooney AP, US | daily high max | 10.6 C (51.1 F) | 0.6 C (1.1 F) | 4 years | 11 of 100 (Routine) |
Climate Trend
123 complete years, 1895 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1895 | 4.4 C | -0.11 C |
| 1896 | 5.1 C | +0.60 C |
| 1897 | 5.1 C | +0.55 C |
| 1900 | 7.0 C | +2.45 C |
| 1901 | 5.4 C | +0.89 C |
| 1902 | 5.7 C | +1.14 C |
| 1903 | 5.6 C | +1.08 C |
| 1904 | 6.8 C | +2.26 C |
| 1905 | 5.6 C | +1.02 C |
| 1906 | 5.7 C | +1.13 C |
| 1907 | 5.7 C | +1.15 C |
| 1908 | 6.3 C | +1.74 C |
| 1909 | 5.6 C | +1.02 C |
| 1910 | 6.9 C | +2.40 C |
| 1911 | 4.8 C | +0.24 C |
| 1913 | 5.1 C | +0.54 C |
| 1914 | 6.2 C | +1.71 C |
| 1915 | 5.5 C | +1.01 C |
| 1916 | 4.2 C | -0.29 C |
| 1917 | 6.0 C | +1.51 C |
| 1918 | 6.3 C | +1.79 C |
| 1919 | 6.3 C | +1.81 C |
| 1921 | 6.7 C | +2.18 C |
| 1922 | 5.5 C | +0.93 C |
| 1923 | 6.0 C | +1.44 C |
| 1924 | 5.7 C | +1.18 C |
| 1925 | 7.1 C | +2.57 C |
| 1926 | 6.8 C | +2.23 C |
| 1927 | 5.5 C | +0.92 C |
| 1928 | 6.2 C | +1.66 C |
| 1929 | 5.5 C | +0.94 C |
| 1930 | 6.2 C | +1.63 C |
| 1932 | 3.4 C | -1.14 C |
| 1933 | 4.5 C | 0.00 C |
| 1934 | 6.5 C | +2.00 C |
| 1935 | 3.3 C | -1.19 C |
| 1936 | 3.5 C | -1.05 C |
| 1937 | 3.2 C | -1.29 C |
| 1938 | 4.2 C | -0.32 C |
| 1941 | 4.4 C | -0.11 C |
| 1942 | 2.7 C | -1.82 C |
| 1943 | 3.0 C | -1.50 C |
| 1944 | 3.4 C | -1.18 C |
| 1945 | 3.8 C | -0.73 C |
| 1946 | 3.9 C | -0.61 C |
| 1947 | 3.8 C | -0.78 C |
| 1948 | 2.6 C | -1.93 C |
| 1949 | 2.9 C | -1.67 C |
| 1950 | 2.9 C | -1.63 C |
| 1951 | 2.1 C | -2.43 C |
| 1952 | 2.9 C | -1.61 C |
| 1953 | 5.1 C | +0.59 C |
| 1954 | 4.3 C | -0.28 C |
| 1955 | 2.1 C | -2.43 C |
| 1956 | 3.5 C | -0.99 C |
| 1957 | 3.6 C | -0.95 C |
| 1958 | 4.6 C | +0.10 C |
| 1959 | 2.9 C | -1.66 C |
| 1960 | 3.3 C | -1.20 C |
| 1961 | 4.5 C | 0.00 C |
| 1962 | 3.1 C | -1.42 C |
| 1963 | 5.4 C | +0.87 C |
| 1964 | 3.6 C | -0.98 C |
| 1965 | 3.8 C | -0.72 C |
| 1966 | 4.6 C | +0.10 C |
| 1967 | 3.8 C | -0.70 C |
| 1968 | 3.0 C | -1.58 C |
| 1969 | 3.4 C | -1.11 C |
| 1970 | 4.1 C | -0.40 C |
| 1971 | 4.2 C | -0.34 C |
| 1972 | 4.0 C | -0.54 C |
| 1973 | 3.9 C | -0.65 C |
| 1974 | 4.4 C | -0.09 C |
| 1975 | 1.1 C | -3.43 C |
| 1976 | 4.6 C | +0.07 C |
| 1977 | 4.3 C | -0.21 C |
| 1978 | 3.4 C | -1.11 C |
| 1979 | 3.3 C | -1.21 C |
| 1980 | 4.5 C | -0.08 C |
| 1981 | 5.9 C | +1.32 C |
| 1982 | 2.6 C | -1.97 C |
| 1983 | 4.2 C | -0.38 C |
| 1984 | 3.9 C | -0.62 C |
| 1985 | 2.1 C | -2.44 C |
| 1986 | 4.5 C | -0.07 C |
| 1987 | 4.8 C | +0.31 C |
| 1988 | 4.9 C | +0.41 C |
| 1989 | 3.6 C | -0.94 C |
| 1990 | 4.7 C | +0.15 C |
| 1991 | 4.6 C | +0.04 C |
| 1992 | 5.0 C | +0.48 C |
| 1993 | 3.1 C | -1.44 C |
| 1994 | 5.0 C | +0.42 C |
| 1995 | 4.6 C | +0.08 C |
| 1996 | 4.1 C | -0.48 C |
| 1997 | 4.2 C | -0.29 C |
| 1998 | 5.4 C | +0.84 C |
| 1999 | 5.5 C | +0.96 C |
| 2000 | 4.8 C | +0.28 C |
| 2001 | 4.3 C | -0.24 C |
| 2002 | 3.5 C | -1.08 C |
| 2003 | 4.5 C | +0.01 C |
| 2004 | 4.7 C | +0.16 C |
| 2005 | 4.5 C | -0.06 C |
| 2006 | 5.0 C | +0.45 C |
| 2007 | 5.2 C | +0.63 C |
| 2008 | 3.5 C | -1.00 C |
| 2009 | 4.1 C | -0.48 C |
| 2010 | 4.0 C | -0.57 C |
| 2011 | 3.9 C | -0.65 C |
| 2012 | 5.4 C | +0.88 C |
| 2013 | 4.5 C | -0.07 C |
| 2015 | 5.6 C | +1.02 C |
| 2016 | 4.9 C | +0.41 C |
| 2017 | 4.7 C | +0.13 C |
| 2018 | 4.5 C | 0.00 C |
| 2019 | 3.4 C | -1.13 C |
| 2020 | 5.1 C | +0.56 C |
| 2021 | 5.5 C | +0.94 C |
| 2022 | 4.3 C | -0.22 C |
| 2023 | 4.4 C | -0.16 C |
| 2024 | 5.6 C | +1.03 C |
| 2025 | 5.7 C | +1.14 C |
The annual mean temperature here has fallen by 0.10 C (0.04 to 0.15) per decade over 1895 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.3) 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 | -0.10 C (-0.15 to -0.04) per decade | -0.2 F (-0.3 to -0.1) per decade | 1895 to 2025 | 123 | Fall |
| Mean daily maximum | 0.03 C (-0.02 to 0.08) per decade | 0.05 F (-0.03 to 0.14) per decade | 1895 to 2025 | 123 | Not clearly different from zero |
| Mean daily minimum | -0.2 C (-0.3 to -0.2) per decade | -0.4 F (-0.5 to -0.3) per decade | 1895 to 2025 | 123 | Fall |
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) | 37.8 C (100.0 F) | 1931 | 33.3 C (91.9 F) | 133 |
| Coldest night (TNn) | -46.7 C (-52.1 F) | 1933 | -33.9 C (-29.0 F) | 133 |
| Wettest day (Rx1day) | 76.2 mm (3.0 in) | 1913 | 23.9 mm (0.9 in) | 133 |
| Wettest five days (Rx5day) | 190.0 mm (7.5 in) | 1913 | 37.4 mm (1.5 in) | 132 |
| Longest dry spell (CDD) | 68 days | 2004 | 32 days | 133 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1894 | 32.8 C (91.0 F) |
| 1895 | 30.6 C (87.1 F) |
| 1896 | 32.2 C (90.0 F) |
| 1897 | 33.3 C (91.9 F) |
| 1898 | 32.2 C (90.0 F) |
| 1899 | 28.9 C (84.0 F) |
| 1900 | 34.4 C (93.9 F) |
| 1901 | 33.3 C (91.9 F) |
| 1902 | 29.4 C (84.9 F) |
| 1903 | 31.7 C (89.1 F) |
| 1904 | 31.1 C (88.0 F) |
| 1905 | 31.1 C (88.0 F) |
| 1906 | 33.3 C (91.9 F) |
| 1907 | 30.0 C (86.0 F) |
| 1908 | 34.4 C (93.9 F) |
| 1909 | 33.3 C (91.9 F) |
| 1910 | 33.3 C (91.9 F) |
| 1911 | 31.7 C (89.1 F) |
| 1912 | 31.7 C (89.1 F) |
| 1913 | 32.8 C (91.0 F) |
| 1914 | 33.3 C (91.9 F) |
| 1915 | 33.3 C (91.9 F) |
| 1916 | 32.2 C (90.0 F) |
| 1917 | 34.4 C (93.9 F) |
| 1918 | 32.8 C (91.0 F) |
| 1919 | 36.1 C (97.0 F) |
| 1920 | 33.9 C (93.0 F) |
| 1921 | 35.0 C (95.0 F) |
| 1922 | 32.8 C (91.0 F) |
| 1923 | 32.8 C (91.0 F) |
| 1924 | 33.9 C (93.0 F) |
| 1925 | 33.9 C (93.0 F) |
| 1926 | 33.3 C (91.9 F) |
| 1927 | 33.3 C (91.9 F) |
| 1928 | 35.6 C (96.1 F) |
| 1929 | 32.8 C (91.0 F) |
| 1930 | 35.0 C (95.0 F) |
| 1931 | 37.8 C (100.0 F) |
| 1932 | 33.3 C (91.9 F) |
| 1933 | 36.7 C (98.1 F) |
| 1934 | 36.1 C (97.0 F) |
| 1935 | 35.0 C (95.0 F) |
| 1936 | 37.2 C (99.0 F) |
| 1937 | 35.0 C (95.0 F) |
| 1938 | 32.2 C (90.0 F) |
| 1939 | 10.6 C (51.1 F) |
| 1940 | 37.2 C (99.0 F) |
| 1941 | 32.8 C (91.0 F) |
| 1942 | 33.9 C (93.0 F) |
| 1943 | 32.2 C (90.0 F) |
| 1944 | 29.4 C (84.9 F) |
| 1945 | 32.8 C (91.0 F) |
| 1946 | 33.3 C (91.9 F) |
| 1947 | 33.3 C (91.9 F) |
| 1948 | 31.7 C (89.1 F) |
| 1949 | 34.4 C (93.9 F) |
| 1950 | 32.8 C (91.0 F) |
| 1951 | 34.4 C (93.9 F) |
| 1952 | 32.2 C (90.0 F) |
| 1953 | 34.4 C (93.9 F) |
| 1954 | 33.9 C (93.0 F) |
| 1955 | 33.3 C (91.9 F) |
| 1956 | 32.2 C (90.0 F) |
| 1957 | 32.8 C (91.0 F) |
| 1958 | 31.7 C (89.1 F) |
| 1959 | 32.2 C (90.0 F) |
| 1960 | 35.6 C (96.1 F) |
| 1961 | 37.2 C (99.0 F) |
| 1962 | 31.1 C (88.0 F) |
| 1963 | 33.9 C (93.0 F) |
| 1964 | 33.3 C (91.9 F) |
| 1965 | 32.8 C (91.0 F) |
| 1966 | 35.0 C (95.0 F) |
| 1967 | 32.2 C (90.0 F) |
| 1968 | 32.8 C (91.0 F) |
| 1969 | 35.0 C (95.0 F) |
| 1970 | 33.9 C (93.0 F) |
| 1971 | 33.3 C (91.9 F) |
| 1972 | 33.3 C (91.9 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 33.9 C (93.0 F) |
| 1975 | 32.8 C (91.0 F) |
| 1976 | 34.4 C (93.9 F) |
| 1977 | 33.9 C (93.0 F) |
| 1978 | 36.1 C (97.0 F) |
| 1979 | 34.4 C (93.9 F) |
| 1980 | 33.9 C (93.0 F) |
| 1981 | 36.1 C (97.0 F) |
| 1982 | 32.8 C (91.0 F) |
| 1983 | 36.1 C (97.0 F) |
| 1984 | 32.8 C (91.0 F) |
| 1985 | 35.0 C (95.0 F) |
| 1986 | 33.3 C (91.9 F) |
| 1987 | 32.2 C (90.0 F) |
| 1988 | 34.4 C (93.9 F) |
| 1989 | 33.9 C (93.0 F) |
| 1990 | 35.0 C (95.0 F) |
| 1991 | 33.9 C (93.0 F) |
| 1992 | 33.3 C (91.9 F) |
| 1993 | 31.7 C (89.1 F) |
| 1994 | 32.8 C (91.0 F) |
| 1995 | 32.8 C (91.0 F) |
| 1996 | 33.9 C (93.0 F) |
| 1997 | 32.2 C (90.0 F) |
| 1998 | 35.6 C (96.1 F) |
| 1999 | 35.6 C (96.1 F) |
| 2000 | 37.2 C (99.0 F) |
| 2001 | 33.3 C (91.9 F) |
| 2002 | 36.7 C (98.1 F) |
| 2003 | 35.0 C (95.0 F) |
| 2004 | 32.2 C (90.0 F) |
| 2005 | 33.9 C (93.0 F) |
| 2006 | 35.6 C (96.1 F) |
| 2007 | 35.6 C (96.1 F) |
| 2008 | 32.8 C (91.0 F) |
| 2009 | 33.3 C (91.9 F) |
| 2010 | 32.2 C (90.0 F) |
| 2011 | 33.9 C (93.0 F) |
| 2012 | 33.3 C (91.9 F) |
| 2013 | 35.0 C (95.0 F) |
| 2014 | -13.2 C (8.2 F) |
| 2015 | 35.0 C (95.0 F) |
| 2016 | 33.3 C (91.9 F) |
| 2017 | 33.9 C (93.0 F) |
| 2018 | 36.1 C (97.0 F) |
| 2019 | 32.8 C (91.0 F) |
| 2020 | 34.4 C (93.9 F) |
| 2021 | 34.4 C (93.9 F) |
| 2022 | 35.6 C (96.1 F) |
| 2023 | 34.4 C (93.9 F) |
| 2024 | 35.0 C (95.0 F) |
| 2025 | 32.8 C (91.0 F) |
| 2026 | 35.0 C (95.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1894 | -24.4 C (-11.9 F) |
| 1895 | -28.9 C (-20.0 F) |
| 1896 | -31.1 C (-24.0 F) |
| 1897 | -32.8 C (-27.0 F) |
| 1898 | -28.3 C (-18.9 F) |
| 1899 | -33.3 C (-27.9 F) |
| 1900 | -27.8 C (-18.0 F) |
| 1901 | -23.9 C (-11.0 F) |
| 1902 | -31.7 C (-25.1 F) |
| 1903 | -22.8 C (-9.0 F) |
| 1904 | -21.1 C (-6.0 F) |
| 1905 | -33.9 C (-29.0 F) |
| 1906 | -27.8 C (-18.0 F) |
| 1907 | -27.2 C (-17.0 F) |
| 1908 | -27.8 C (-18.0 F) |
| 1909 | -28.3 C (-18.9 F) |
| 1910 | -31.1 C (-24.0 F) |
| 1911 | -27.2 C (-17.0 F) |
| 1912 | -21.7 C (-7.1 F) |
| 1913 | -25.0 C (-13.0 F) |
| 1914 | -32.2 C (-26.0 F) |
| 1915 | -28.3 C (-18.9 F) |
| 1916 | -36.1 C (-33.0 F) |
| 1917 | -25.6 C (-14.1 F) |
| 1918 | -33.3 C (-27.9 F) |
| 1919 | -33.3 C (-27.9 F) |
| 1920 | -29.4 C (-20.9 F) |
| 1921 | -25.0 C (-13.0 F) |
| 1922 | -27.8 C (-18.0 F) |
| 1923 | -32.2 C (-26.0 F) |
| 1924 | -35.6 C (-32.1 F) |
| 1925 | -17.2 C (1.0 F) |
| 1926 | -30.6 C (-23.1 F) |
| 1927 | -33.9 C (-29.0 F) |
| 1928 | -25.6 C (-14.1 F) |
| 1929 | -32.8 C (-27.0 F) |
| 1930 | -36.7 C (-34.1 F) |
| 1931 | -31.7 C (-25.1 F) |
| 1932 | -38.3 C (-36.9 F) |
| 1933 | -46.7 C (-52.1 F) |
| 1934 | -25.6 C (-14.1 F) |
| 1935 | -39.4 C (-38.9 F) |
| 1936 | -46.1 C (-51.0 F) |
| 1937 | -44.4 C (-47.9 F) |
| 1938 | -37.8 C (-36.0 F) |
| 1939 | -35.0 C (-31.0 F) |
| 1940 | -30.6 C (-23.1 F) |
| 1941 | -36.1 C (-33.0 F) |
| 1942 | -42.8 C (-45.0 F) |
| 1943 | -37.2 C (-35.0 F) |
| 1944 | -37.8 C (-36.0 F) |
| 1945 | -35.0 C (-31.0 F) |
| 1946 | -31.1 C (-24.0 F) |
| 1947 | -36.7 C (-34.1 F) |
| 1948 | -37.8 C (-36.0 F) |
| 1949 | -40.0 C (-40.0 F) |
| 1950 | -36.7 C (-34.1 F) |
| 1951 | -43.3 C (-45.9 F) |
| 1952 | -32.8 C (-27.0 F) |
| 1953 | -25.6 C (-14.1 F) |
| 1954 | -35.0 C (-31.0 F) |
| 1955 | -36.7 C (-34.1 F) |
| 1956 | -37.8 C (-36.0 F) |
| 1957 | -40.6 C (-41.1 F) |
| 1958 | -26.7 C (-16.1 F) |
| 1959 | -41.1 C (-42.0 F) |
| 1960 | -36.1 C (-33.0 F) |
| 1961 | -36.7 C (-34.1 F) |
| 1962 | -42.2 C (-44.0 F) |
| 1963 | -42.2 C (-44.0 F) |
| 1964 | -38.9 C (-38.0 F) |
| 1965 | -29.4 C (-20.9 F) |
| 1966 | -30.6 C (-23.1 F) |
| 1967 | -32.8 C (-27.0 F) |
| 1968 | -36.7 C (-34.1 F) |
| 1969 | -37.8 C (-36.0 F) |
| 1970 | -35.0 C (-31.0 F) |
| 1971 | -32.8 C (-27.0 F) |
| 1972 | -40.0 C (-40.0 F) |
| 1973 | -37.8 C (-36.0 F) |
| 1974 | -37.8 C (-36.0 F) |
| 1975 | -38.3 C (-36.9 F) |
| 1976 | -33.3 C (-27.9 F) |
| 1977 | -35.6 C (-32.1 F) |
| 1978 | -41.1 C (-42.0 F) |
| 1979 | -41.1 C (-42.0 F) |
| 1980 | -38.9 C (-38.0 F) |
| 1981 | -41.7 C (-43.1 F) |
| 1982 | -42.2 C (-44.0 F) |
| 1983 | -46.7 C (-52.1 F) |
| 1984 | -35.0 C (-31.0 F) |
| 1985 | -41.7 C (-43.1 F) |
| 1986 | -35.0 C (-31.0 F) |
| 1987 | -32.2 C (-26.0 F) |
| 1988 | -32.8 C (-27.0 F) |
| 1989 | -42.2 C (-44.0 F) |
| 1990 | -42.2 C (-44.0 F) |
| 1991 | -35.0 C (-31.0 F) |
| 1992 | -31.7 C (-25.1 F) |
| 1993 | -35.0 C (-31.0 F) |
| 1994 | -27.8 C (-18.0 F) |
| 1995 | -31.7 C (-25.1 F) |
| 1996 | -38.9 C (-38.0 F) |
| 1997 | -38.9 C (-38.0 F) |
| 1998 | -39.4 C (-38.9 F) |
| 1999 | -25.6 C (-14.1 F) |
| 2000 | -30.0 C (-22.0 F) |
| 2001 | -31.7 C (-25.1 F) |
| 2002 | -30.6 C (-23.1 F) |
| 2003 | -38.3 C (-36.9 F) |
| 2004 | -37.8 C (-36.0 F) |
| 2005 | -33.3 C (-27.9 F) |
| 2006 | -33.9 C (-29.0 F) |
| 2007 | -32.8 C (-27.0 F) |
| 2008 | -36.7 C (-34.1 F) |
| 2009 | -31.7 C (-25.1 F) |
| 2010 | -30.0 C (-22.0 F) |
| 2011 | -31.7 C (-25.1 F) |
| 2012 | -23.9 C (-11.0 F) |
| 2013 | -32.1 C (-25.8 F) |
| 2014 | -24.9 C (-12.8 F) |
| 2015 | -28.2 C (-18.8 F) |
| 2016 | -38.2 C (-36.8 F) |
| 2017 | -35.5 C (-31.9 F) |
| 2018 | -34.3 C (-29.7 F) |
| 2019 | -34.3 C (-29.7 F) |
| 2020 | -27.7 C (-17.9 F) |
| 2021 | -26.6 C (-15.9 F) |
| 2022 | -39.9 C (-39.8 F) |
| 2023 | -37.7 C (-35.9 F) |
| 2024 | -42.7 C (-44.9 F) |
| 2025 | -34.9 C (-30.8 F) |
| 2026 | -21.7 C (-7.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1894 | 23.6 mm (0.9 in) |
| 1895 | 20.3 mm (0.8 in) |
| 1896 | 23.9 mm (0.9 in) |
| 1897 | 17.0 mm (0.7 in) |
| 1898 | 32.5 mm (1.3 in) |
| 1899 | 27.9 mm (1.1 in) |
| 1900 | 38.1 mm (1.5 in) |
| 1901 | 25.4 mm (1.0 in) |
| 1902 | 30.5 mm (1.2 in) |
| 1903 | 15.2 mm (0.6 in) |
| 1904 | 25.4 mm (1.0 in) |
| 1905 | 19.1 mm (0.8 in) |
| 1906 | 25.4 mm (1.0 in) |
| 1907 | 25.4 mm (1.0 in) |
| 1908 | 40.6 mm (1.6 in) |
| 1909 | 27.9 mm (1.1 in) |
| 1910 | 25.4 mm (1.0 in) |
| 1911 | 58.4 mm (2.3 in) |
| 1912 | 18.3 mm (0.7 in) |
| 1913 | 76.2 mm (3.0 in) |
| 1914 | 17.8 mm (0.7 in) |
| 1915 | 25.7 mm (1.0 in) |
| 1916 | 22.4 mm (0.9 in) |
| 1917 | 31.0 mm (1.2 in) |
| 1918 | 30.5 mm (1.2 in) |
| 1919 | 32.5 mm (1.3 in) |
| 1920 | 23.9 mm (0.9 in) |
| 1921 | 30.5 mm (1.2 in) |
| 1922 | 17.0 mm (0.7 in) |
| 1923 | 17.5 mm (0.7 in) |
| 1924 | 14.0 mm (0.6 in) |
| 1925 | 21.8 mm (0.9 in) |
| 1926 | 32.5 mm (1.3 in) |
| 1927 | 63.5 mm (2.5 in) |
| 1928 | 19.3 mm (0.8 in) |
| 1929 | 23.1 mm (0.9 in) |
| 1930 | 22.9 mm (0.9 in) |
| 1931 | 17.3 mm (0.7 in) |
| 1932 | 23.6 mm (0.9 in) |
| 1933 | 35.6 mm (1.4 in) |
| 1934 | 29.2 mm (1.1 in) |
| 1935 | 12.7 mm (0.5 in) |
| 1936 | 27.2 mm (1.1 in) |
| 1937 | 34.0 mm (1.3 in) |
| 1938 | 31.0 mm (1.2 in) |
| 1939 | 1.8 mm (0.07 in) |
| 1940 | 24.4 mm (1.0 in) |
| 1941 | 16.5 mm (0.6 in) |
| 1942 | 17.5 mm (0.7 in) |
| 1943 | 51.3 mm (2.0 in) |
| 1944 | 27.7 mm (1.1 in) |
| 1945 | 11.9 mm (0.5 in) |
| 1946 | 27.7 mm (1.1 in) |
| 1947 | 21.3 mm (0.8 in) |
| 1948 | 37.8 mm (1.5 in) |
| 1949 | 15.7 mm (0.6 in) |
| 1950 | 14.2 mm (0.6 in) |
| 1951 | 16.0 mm (0.6 in) |
| 1952 | 25.9 mm (1.0 in) |
| 1953 | 30.5 mm (1.2 in) |
| 1954 | 10.2 mm (0.4 in) |
| 1955 | 24.1 mm (0.9 in) |
| 1956 | 21.6 mm (0.9 in) |
| 1957 | 22.1 mm (0.9 in) |
| 1958 | 26.7 mm (1.1 in) |
| 1959 | 19.1 mm (0.8 in) |
| 1960 | 19.1 mm (0.8 in) |
| 1961 | 20.6 mm (0.8 in) |
| 1962 | 20.8 mm (0.8 in) |
| 1963 | 17.3 mm (0.7 in) |
| 1964 | 27.2 mm (1.1 in) |
| 1965 | 25.9 mm (1.0 in) |
| 1966 | 27.4 mm (1.1 in) |
| 1967 | 26.2 mm (1.0 in) |
| 1968 | 17.3 mm (0.7 in) |
| 1969 | 36.8 mm (1.4 in) |
| 1970 | 20.1 mm (0.8 in) |
| 1971 | 15.2 mm (0.6 in) |
| 1972 | 23.4 mm (0.9 in) |
| 1973 | 25.9 mm (1.0 in) |
| 1974 | 21.3 mm (0.8 in) |
| 1975 | 25.7 mm (1.0 in) |
| 1976 | 29.2 mm (1.1 in) |
| 1977 | 20.6 mm (0.8 in) |
| 1978 | 20.8 mm (0.8 in) |
| 1979 | 26.2 mm (1.0 in) |
| 1980 | 30.5 mm (1.2 in) |
| 1981 | 26.2 mm (1.0 in) |
| 1982 | 21.6 mm (0.9 in) |
| 1983 | 30.2 mm (1.2 in) |
| 1984 | 26.7 mm (1.1 in) |
| 1985 | 24.6 mm (1.0 in) |
| 1986 | 19.6 mm (0.8 in) |
| 1987 | 37.3 mm (1.5 in) |
| 1988 | 28.4 mm (1.1 in) |
| 1989 | 20.1 mm (0.8 in) |
| 1990 | 13.5 mm (0.5 in) |
| 1991 | 20.1 mm (0.8 in) |
| 1992 | 35.6 mm (1.4 in) |
| 1993 | 25.9 mm (1.0 in) |
| 1994 | 24.9 mm (1.0 in) |
| 1995 | 29.2 mm (1.1 in) |
| 1996 | 26.7 mm (1.1 in) |
| 1997 | 31.0 mm (1.2 in) |
| 1998 | 18.3 mm (0.7 in) |
| 1999 | 21.1 mm (0.8 in) |
| 2000 | 13.0 mm (0.5 in) |
| 2001 | 24.4 mm (1.0 in) |
| 2002 | 15.7 mm (0.6 in) |
| 2003 | 21.3 mm (0.8 in) |
| 2004 | 21.8 mm (0.9 in) |
| 2005 | 21.1 mm (0.8 in) |
| 2006 | 27.7 mm (1.1 in) |
| 2007 | 30.0 mm (1.2 in) |
| 2008 | 34.3 mm (1.4 in) |
| 2009 | 24.6 mm (1.0 in) |
| 2010 | 31.0 mm (1.2 in) |
| 2011 | 31.2 mm (1.2 in) |
| 2012 | 17.0 mm (0.7 in) |
| 2013 | 18.5 mm (0.7 in) |
| 2014 | 0.0 mm (0.00 in) |
| 2015 | 19.3 mm (0.8 in) |
| 2016 | 18.3 mm (0.7 in) |
| 2017 | 22.6 mm (0.9 in) |
| 2018 | 23.6 mm (0.9 in) |
| 2019 | 20.8 mm (0.8 in) |
| 2020 | 21.6 mm (0.9 in) |
| 2021 | 10.9 mm (0.4 in) |
| 2022 | 20.6 mm (0.8 in) |
| 2023 | 46.2 mm (1.8 in) |
| 2024 | 11.7 mm (0.5 in) |
| 2025 | 19.3 mm (0.8 in) |
| 2026 | 29.0 mm (1.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1894 | 27.4 mm (1.1 in) |
| 1895 | 20.3 mm (0.8 in) |
| 1896 | 29.9 mm (1.2 in) |
| 1897 | 30.5 mm (1.2 in) |
| 1898 | 33.0 mm (1.3 in) |
| 1899 | 45.7 mm (1.8 in) |
| 1900 | 50.9 mm (2.0 in) |
| 1901 | 36.9 mm (1.5 in) |
| 1902 | 55.9 mm (2.2 in) |
| 1903 | 28.0 mm (1.1 in) |
| 1904 | 35.6 mm (1.4 in) |
| 1905 | 36.8 mm (1.4 in) |
| 1906 | 53.4 mm (2.1 in) |
| 1907 | 43.2 mm (1.7 in) |
| 1908 | 91.9 mm (3.6 in) |
| 1909 | 38.1 mm (1.5 in) |
| 1910 | 30.4 mm (1.2 in) |
| 1911 | 62.2 mm (2.4 in) |
| 1912 | 28.5 mm (1.1 in) |
| 1913 | 190.0 mm (7.5 in) |
| 1914 | 38.9 mm (1.5 in) |
| 1915 | 58.9 mm (2.3 in) |
| 1916 | 30.2 mm (1.2 in) |
| 1917 | 36.1 mm (1.4 in) |
| 1918 | 61.0 mm (2.4 in) |
| 1919 | 37.6 mm (1.5 in) |
| 1920 | 29.8 mm (1.2 in) |
| 1921 | 52.1 mm (2.1 in) |
| 1922 | 36.4 mm (1.4 in) |
| 1923 | 25.2 mm (1.0 in) |
| 1924 | 20.4 mm (0.8 in) |
| 1925 | 51.0 mm (2.0 in) |
| 1926 | 42.9 mm (1.7 in) |
| 1927 | 98.8 mm (3.9 in) |
| 1928 | 38.7 mm (1.5 in) |
| 1929 | 34.5 mm (1.4 in) |
| 1930 | 33.5 mm (1.3 in) |
| 1931 | 27.0 mm (1.1 in) |
| 1932 | 31.6 mm (1.2 in) |
| 1933 | 42.0 mm (1.7 in) |
| 1934 | 51.2 mm (2.0 in) |
| 1935 | 18.0 mm (0.7 in) |
| 1936 | 49.8 mm (2.0 in) |
| 1937 | 48.2 mm (1.9 in) |
| 1938 | 73.7 mm (2.9 in) |
| 1939 | 3.3 mm (0.13 in) |
| 1940 | 50.5 mm (2.0 in) |
| 1941 | 34.1 mm (1.3 in) |
| 1942 | 29.1 mm (1.1 in) |
| 1943 | 51.3 mm (2.0 in) |
| 1944 | 55.9 mm (2.2 in) |
| 1945 | 29.1 mm (1.1 in) |
| 1946 | 45.0 mm (1.8 in) |
| 1947 | 41.9 mm (1.6 in) |
| 1948 | 59.2 mm (2.3 in) |
| 1949 | 26.4 mm (1.0 in) |
| 1950 | 24.3 mm (1.0 in) |
| 1951 | 19.6 mm (0.8 in) |
| 1952 | 47.5 mm (1.9 in) |
| 1953 | 39.7 mm (1.6 in) |
| 1954 | 21.0 mm (0.8 in) |
| 1955 | 37.4 mm (1.5 in) |
| 1956 | 24.6 mm (1.0 in) |
| 1957 | 45.8 mm (1.8 in) |
| 1958 | 33.0 mm (1.3 in) |
| 1959 | 38.1 mm (1.5 in) |
| 1960 | 25.2 mm (1.0 in) |
| 1961 | 36.6 mm (1.4 in) |
| 1962 | 36.2 mm (1.4 in) |
| 1963 | 34.4 mm (1.4 in) |
| 1964 | 49.0 mm (1.9 in) |
| 1965 | 57.5 mm (2.3 in) |
| 1966 | 38.4 mm (1.5 in) |
| 1967 | 49.6 mm (2.0 in) |
| 1968 | 38.9 mm (1.5 in) |
| 1969 | 57.9 mm (2.3 in) |
| 1970 | 31.0 mm (1.2 in) |
| 1971 | 30.5 mm (1.2 in) |
| 1972 | 23.7 mm (0.9 in) |
| 1973 | 35.1 mm (1.4 in) |
| 1974 | 29.2 mm (1.1 in) |
| 1975 | 52.6 mm (2.1 in) |
| 1976 | 40.7 mm (1.6 in) |
| 1977 | 35.8 mm (1.4 in) |
| 1978 | 44.6 mm (1.8 in) |
| 1979 | 31.3 mm (1.2 in) |
| 1980 | 54.6 mm (2.1 in) |
| 1981 | 56.7 mm (2.2 in) |
| 1982 | 32.6 mm (1.3 in) |
| 1983 | 52.3 mm (2.1 in) |
| 1984 | 37.4 mm (1.5 in) |
| 1985 | 44.7 mm (1.8 in) |
| 1986 | 27.7 mm (1.1 in) |
| 1987 | 46.5 mm (1.8 in) |
| 1988 | 29.4 mm (1.2 in) |
| 1989 | 31.0 mm (1.2 in) |
| 1990 | 28.7 mm (1.1 in) |
| 1991 | 33.0 mm (1.3 in) |
| 1992 | 64.8 mm (2.6 in) |
| 1993 | 48.3 mm (1.9 in) |
| 1994 | 40.6 mm (1.6 in) |
| 1995 | 89.2 mm (3.5 in) |
| 1996 | 31.8 mm (1.3 in) |
| 1997 | 58.2 mm (2.3 in) |
| 1998 | 34.8 mm (1.4 in) |
| 1999 | 42.7 mm (1.7 in) |
| 2000 | 23.5 mm (0.9 in) |
| 2001 | 30.3 mm (1.2 in) |
| 2002 | 33.8 mm (1.3 in) |
| 2003 | 30.8 mm (1.2 in) |
| 2004 | 32.2 mm (1.3 in) |
| 2005 | 38.2 mm (1.5 in) |
| 2006 | 48.9 mm (1.9 in) |
| 2007 | 43.5 mm (1.7 in) |
| 2008 | 41.5 mm (1.6 in) |
| 2009 | 43.7 mm (1.7 in) |
| 2010 | 54.3 mm (2.1 in) |
| 2011 | 67.7 mm (2.7 in) |
| 2012 | 33.8 mm (1.3 in) |
| 2013 | 36.3 mm (1.4 in) |
| 2014 | n/a |
| 2015 | 36.6 mm (1.4 in) |
| 2016 | 22.1 mm (0.9 in) |
| 2017 | 46.5 mm (1.8 in) |
| 2018 | 52.8 mm (2.1 in) |
| 2019 | 36.5 mm (1.4 in) |
| 2020 | 41.0 mm (1.6 in) |
| 2021 | 26.9 mm (1.1 in) |
| 2022 | 34.8 mm (1.4 in) |
| 2023 | 58.9 mm (2.3 in) |
| 2024 | 17.6 mm (0.7 in) |
| 2025 | 36.1 mm (1.4 in) |
| 2026 | 50.1 mm (2.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1894 | 38 days |
| 1895 | 25 days |
| 1896 | 31 days |
| 1897 | 31 days |
| 1898 | 32 days |
| 1899 | 38 days |
| 1900 | 33 days |
| 1901 | 38 days |
| 1902 | 42 days |
| 1903 | 29 days |
| 1904 | 39 days |
| 1905 | 30 days |
| 1906 | 54 days |
| 1907 | 46 days |
| 1908 | 45 days |
| 1909 | 21 days |
| 1910 | 28 days |
| 1911 | 30 days |
| 1912 | 35 days |
| 1913 | 25 days |
| 1914 | 45 days |
| 1915 | 45 days |
| 1916 | 27 days |
| 1917 | 63 days |
| 1918 | 45 days |
| 1919 | 24 days |
| 1920 | 32 days |
| 1921 | 25 days |
| 1922 | 55 days |
| 1923 | 27 days |
| 1924 | 21 days |
| 1925 | 43 days |
| 1926 | 20 days |
| 1927 | 20 days |
| 1928 | 21 days |
| 1929 | 42 days |
| 1930 | 27 days |
| 1931 | 30 days |
| 1932 | 27 days |
| 1933 | 50 days |
| 1934 | 37 days |
| 1935 | 41 days |
| 1936 | 47 days |
| 1937 | 32 days |
| 1938 | 28 days |
| 1939 | 17 days |
| 1940 | 34 days |
| 1941 | 37 days |
| 1942 | 25 days |
| 1943 | 29 days |
| 1944 | 36 days |
| 1945 | 34 days |
| 1946 | 22 days |
| 1947 | 19 days |
| 1948 | 29 days |
| 1949 | 34 days |
| 1950 | 33 days |
| 1951 | 19 days |
| 1952 | 47 days |
| 1953 | 45 days |
| 1954 | 45 days |
| 1955 | 43 days |
| 1956 | 45 days |
| 1957 | 32 days |
| 1958 | 28 days |
| 1959 | 44 days |
| 1960 | 23 days |
| 1961 | 52 days |
| 1962 | 41 days |
| 1963 | 27 days |
| 1964 | 42 days |
| 1965 | 26 days |
| 1966 | 30 days |
| 1967 | 31 days |
| 1968 | 41 days |
| 1969 | 42 days |
| 1970 | 39 days |
| 1971 | 24 days |
| 1972 | 26 days |
| 1973 | 29 days |
| 1974 | 27 days |
| 1975 | 21 days |
| 1976 | 33 days |
| 1977 | 44 days |
| 1978 | 40 days |
| 1979 | 34 days |
| 1980 | 25 days |
| 1981 | 32 days |
| 1982 | 16 days |
| 1983 | 34 days |
| 1984 | 14 days |
| 1985 | 35 days |
| 1986 | 25 days |
| 1987 | 60 days |
| 1988 | 34 days |
| 1989 | 22 days |
| 1990 | 31 days |
| 1991 | 36 days |
| 1992 | 27 days |
| 1993 | 23 days |
| 1994 | 38 days |
| 1995 | 21 days |
| 1996 | 19 days |
| 1997 | 23 days |
| 1998 | 22 days |
| 1999 | 39 days |
| 2000 | 31 days |
| 2001 | 33 days |
| 2002 | 54 days |
| 2003 | 42 days |
| 2004 | 68 days |
| 2005 | 43 days |
| 2006 | 34 days |
| 2007 | 39 days |
| 2008 | 21 days |
| 2009 | 49 days |
| 2010 | 19 days |
| 2011 | 25 days |
| 2012 | 50 days |
| 2013 | 35 days |
| 2014 | 1 day |
| 2015 | 33 days |
| 2016 | 35 days |
| 2017 | 28 days |
| 2018 | 23 days |
| 2019 | 26 days |
| 2020 | 27 days |
| 2021 | 28 days |
| 2022 | 42 days |
| 2023 | 31 days |
| 2024 | 28 days |
| 2025 | 26 days |
| 2026 | 34 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 Butte Bert Mooney AP falls on 12 June and the median first autumn frost on 4 September, which leaves a median of 84 days between them.
In 1995 to 2025 the median growing season was 82 days. That is 19 days fewer than in 1895 to 1928.
Fitted over all years, the growing season changes by -2.1 days per decade at this station.
| Measure | Median, all years | Earliest period (1895 to 1928) | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 12 June | 6 June | 16 June | 10 days later | +1.1 days per decade |
| First autumn frost | 4 September | 15 September | 7 September | 8 days earlier | -1.1 days per decade |
| Growing days | 84 days | 101 days | 82 days | 19 days fewer | -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
126 years, 1895 to 2025A day with at least 23.3 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 55.8 mm (2.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 23.3 mm (0.9 in) | |
| 5 years | 31.0 mm (1.2 in) | |
| 10 years | 36.4 mm (1.4 in) | |
| 25 years | 43.8 mm (1.7 in) | |
| 50 years | 49.7 mm (2.0 in) | |
| 100 years | 55.8 mm (2.2 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 126 years of values from 1895 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: 76.2 mm (3.0 in) in 1913; 63.5 mm (2.5 in) in 1927; 58.4 mm (2.3 in) in 1911.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2010 to 2025 against 1961 to 1990Over 2010 to 2025, Butte Bert Mooney AP had a mean temperature of 4.8 C (40.6 F) and 291.9 mm (11.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Evanston 1 E (United States, 538 km away), Laramie AP (United States, 754 km away) and Mtn View (United States, 551 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Evanston 1 E | United States | 538 km (334 mi) | 4.9 C (40.9 F) | 276.5 mm (10.9 in) | 0.71 |
| Laramie AP | United States | 754 km (469 mi) | 4.7 C (40.4 F) | 276.1 mm (10.9 in) | 0.72 |
| Mtn View | United States | 551 km (342 mi) | 4.9 C (40.9 F) | 217.9 mm (8.6 in) | 0.79 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-16).