Hamilton Weather Records (USC00243885)
Record envelope, standing records and threshold days for Hamilton (USC00243885), Montana, United States, with 130 years of record.
Key Facts for Hamilton
- Hamilton (USC00243885) is a weather station in Montana, United States at 46.25 latitude and -114.17 longitude, 1,093 m (3,585 ft) above sea level.
- The station reports from 1895 to 2024, 130 years of record.
- 1,464 records set at Hamilton still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Hamilton set a daily record precipitation of 12.7 mm (0.5 in) on 4 April 2024.
About the Station
- Location: Montana, United States, 46.25 latitude, -114.17 longitude.
- Elevation: 1,093 m (3,585 ft).
- Period of record: 1895 to 2024, 130 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 18.3 C (64.9 F) | -37.8 C (-36.0 F) | n/a | n/a |
| Feb | 21.7 C (71.1 F) | -39.4 C (-38.9 F) | n/a | n/a |
| Mar | 27.8 C (82.0 F) | -25.6 C (-14.1 F) | n/a | n/a |
| Apr | 32.2 C (90.0 F) | -17.2 C (1.0 F) | n/a | n/a |
| May | 38.9 C (102.0 F) | -7.8 C (18.0 F) | n/a | n/a |
| Jun | 38.9 C (102.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Jul | 40.6 C (105.1 F) | -0.6 C (30.9 F) | n/a | n/a |
| Aug | 39.4 C (102.9 F) | -7.2 C (19.0 F) | n/a | n/a |
| Sep | 36.7 C (98.1 F) | -12.2 C (10.0 F) | n/a | n/a |
| Oct | 32.2 C (90.0 F) | -20.6 C (-5.1 F) | n/a | n/a |
| Nov | 24.4 C (75.9 F) | -31.1 C (-24.0 F) | n/a | n/a |
| Dec | 18.9 C (66.0 F) | -35.0 C (-31.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1895 | 64 |
| 1898 | 23 |
| 1899 | 39 |
| 1900 | 18 |
| 1901 | 54 |
| 1902 | 1 |
| 1903 | 11 |
| 1904 | 8 |
| 1905 | 8 |
| 1906 | 20 |
| 1907 | 9 |
| 1908 | 7 |
| 1909 | 12 |
| 1910 | 20 |
| 1911 | 6 |
| 1912 | 6 |
| 1913 | 9 |
| 1914 | 11 |
| 1915 | 7 |
| 1916 | 15 |
| 1917 | 22 |
| 1918 | 25 |
| 1919 | 12 |
| 1920 | 4 |
| 1921 | 14 |
| 1922 | 5 |
| 1924 | 34 |
| 1928 | 6 |
| 1929 | 9 |
| 1930 | 24 |
| 1931 | 26 |
| 1932 | 15 |
| 1933 | 11 |
| 1934 | 15 |
| 1935 | 15 |
| 1936 | 37 |
| 1937 | 12 |
| 1938 | 10 |
| 1939 | 7 |
| 1940 | 9 |
| 1941 | 4 |
| 1942 | 11 |
| 1943 | 6 |
| 1944 | 4 |
| 1945 | 2 |
| 1946 | 9 |
| 1947 | 6 |
| 1948 | 6 |
| 1949 | 12 |
| 1950 | 8 |
| 1951 | 12 |
| 1952 | 2 |
| 1953 | 11 |
| 1954 | 10 |
| 1955 | 18 |
| 1956 | 5 |
| 1957 | 14 |
| 1958 | 5 |
| 1959 | 8 |
| 1960 | 17 |
| 1961 | 11 |
| 1962 | 7 |
| 1963 | 10 |
| 1964 | 12 |
| 1965 | 26 |
| 1966 | 13 |
| 1967 | 4 |
| 1968 | 6 |
| 1969 | 10 |
| 1970 | 4 |
| 1971 | 13 |
| 1972 | 23 |
| 1973 | 10 |
| 1974 | 13 |
| 1975 | 14 |
| 1976 | 4 |
| 1977 | 6 |
| 1978 | 8 |
| 1979 | 8 |
| 1980 | 14 |
| 1981 | 6 |
| 1982 | 7 |
| 1983 | 16 |
| 1984 | 7 |
| 1985 | 17 |
| 1986 | 15 |
| 1987 | 14 |
| 1988 | 8 |
| 1989 | 13 |
| 1990 | 10 |
| 1991 | 5 |
| 1992 | 6 |
| 1993 | 19 |
| 1994 | 4 |
| 1995 | 9 |
| 1996 | 6 |
| 1997 | 8 |
| 1998 | 8 |
| 1999 | 6 |
| 2000 | 6 |
| 2001 | 7 |
| 2002 | 17 |
| 2003 | 12 |
| 2004 | 9 |
| 2006 | 2 |
| 2007 | 9 |
| 2008 | 8 |
| 2009 | 15 |
| 2010 | 11 |
| 2011 | 7 |
| 2012 | 5 |
| 2013 | 8 |
| 2014 | 3 |
| 2015 | 18 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 22 |
| 2020 | 15 |
| 2021 | 18 |
| 2022 | 18 |
| 2023 | 6 |
| 2024 | 9 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1952-05-15 | Record daily precipitation | Record daily precipitation 56.6 mm (2.2 in) |
| 1964-12-17 | Record low maximum temperature | Record low maximum temperature -25.0 C (-13.0 F) |
Wettest Day of Each Month
May: 56.6 mm (2.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 27.7 mm (1.1 in) | 15 January 1974 |
| Feb | 28.4 mm (1.1 in) | 25 February 1917 |
| Mar | 18.5 mm (0.7 in) | 5 March 1951 |
| Apr | 34.0 mm (1.3 in) | 10 April 1996 |
| May | 56.6 mm (2.2 in) | 15 May 1952 |
| Jun | 49.0 mm (1.9 in) | 25 June 1965 |
| Jul | 37.8 mm (1.5 in) | 14 July 2011 |
| Aug | 44.2 mm (1.7 in) | 20 August 1974 |
| Sep | 43.2 mm (1.7 in) | 6 September 1911 |
| Oct | 30.2 mm (1.2 in) | 11 October 1911 |
| Nov | 39.4 mm (1.6 in) | 20 November 1962 |
| Dec | 40.1 mm (1.6 in) | 22 December 1964 |
Period of Record Coverage
1895 to 2024| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1895 | 165 | 45% | No |
| 1898 | 87 | 24% | No |
| 1899 | 362 | 99% | Yes |
| 1900 | 363 | 99% | Yes |
| 1901 | 295 | 81% | No |
| 1902 | 59 | 16% | No |
| 1903 | 353 | 97% | Yes |
| 1904 | 347 | 95% | Yes |
| 1905 | 317 | 87% | No |
| 1906 | 324 | 89% | No |
| 1907 | 338 | 93% | Yes |
| 1908 | 350 | 96% | Yes |
| 1909 | 357 | 98% | Yes |
| 1910 | 362 | 99% | Yes |
| 1911 | 363 | 99% | Yes |
| 1912 | 364 | 99% | Yes |
| 1913 | 358 | 98% | Yes |
| 1914 | 350 | 96% | Yes |
| 1915 | 301 | 82% | No |
| 1916 | 330 | 90% | Yes |
| 1917 | 311 | 85% | No |
| 1918 | 172 | 47% | No |
| 1919 | 170 | 47% | No |
| 1920 | 182 | 50% | No |
| 1921 | 299 | 82% | No |
| 1922 | 182 | 50% | No |
| 1923 | 88 | 24% | No |
| 1924 | 240 | 66% | No |
| 1928 | 347 | 95% | Yes |
| 1929 | 355 | 97% | Yes |
| 1930 | 362 | 99% | Yes |
| 1931 | 362 | 99% | Yes |
| 1932 | 360 | 98% | Yes |
| 1933 | 357 | 98% | Yes |
| 1934 | 363 | 99% | Yes |
| 1935 | 359 | 98% | Yes |
| 1936 | 361 | 99% | Yes |
| 1937 | 360 | 99% | Yes |
| 1938 | 362 | 99% | Yes |
| 1939 | 362 | 99% | Yes |
| 1940 | 360 | 98% | Yes |
| 1941 | 359 | 98% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 361 | 99% | Yes |
| 1956 | 363 | 99% | Yes |
| 1957 | 362 | 99% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 363 | 99% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 358 | 98% | Yes |
| 1967 | 355 | 97% | Yes |
| 1968 | 362 | 99% | Yes |
| 1969 | 359 | 98% | Yes |
| 1970 | 359 | 98% | Yes |
| 1971 | 357 | 98% | Yes |
| 1972 | 360 | 98% | Yes |
| 1973 | 360 | 99% | Yes |
| 1974 | 359 | 98% | Yes |
| 1975 | 355 | 97% | Yes |
| 1976 | 359 | 98% | Yes |
| 1977 | 355 | 97% | Yes |
| 1978 | 358 | 98% | Yes |
| 1979 | 363 | 99% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 360 | 99% | Yes |
| 1982 | 307 | 84% | No |
| 1983 | 324 | 89% | No |
| 1984 | 324 | 89% | No |
| 1985 | 299 | 82% | No |
| 1986 | 305 | 84% | No |
| 1987 | 302 | 83% | No |
| 1988 | 318 | 87% | No |
| 1989 | 356 | 98% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 363 | 99% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 364 | 100% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 362 | 99% | Yes |
| 1998 | 364 | 100% | Yes |
| 1999 | 364 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 298 | 81% | No |
| 2006 | 153 | 42% | No |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 360 | 99% | Yes |
| 2012 | 361 | 99% | Yes |
| 2013 | 362 | 99% | Yes |
| 2014 | 360 | 99% | Yes |
| 2015 | 363 | 99% | Yes |
| 2016 | 333 | 91% | Yes |
| 2017 | 89 | 24% | No |
| 2018 | 365 | 100% | Yes |
| 2019 | 339 | 93% | Yes |
| 2020 | 359 | 98% | Yes |
| 2021 | 363 | 99% | Yes |
| 2022 | 319 | 87% | No |
| 2023 | 304 | 83% | No |
| 2024 | 85 | 23% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 4 April 2024 | Hamilton, US | daily rain | 12.7 mm (0.5 in) | 6.1 mm (0.24 in) | 31 years | 20 of 100 (Routine) |
| 3 April 2024 | Hamilton, US | daily high min | 7.8 C (46.0 F) | 1.1 C (2.0 F) | 32 years | 22 of 100 (Routine) |
| 29 February 2024 | Hamilton, US | daily high min | 5.0 C (41.0 F) | 1.7 C (3.1 F) | 88 years | 38 of 100 (Notable) |
| 31 January 2024 | Hamilton, US | daily high max | 16.7 C (62.1 F) | 0.6 C (1.1 F) | 32 years | 19 of 100 (Routine) |
| 15 January 2024 | Hamilton, US | daily low min | -30.6 C (-23.1 F) | 5.0 C (9.0 F) | 93 years | 44 of 100 (Notable) |
| 15 January 2024 | Hamilton, US | daily low max | -19.4 C (-2.9 F) | 1.1 C (2.0 F) | 116 years | 41 of 100 (Notable) |
| 14 January 2024 | Hamilton, US | daily low max | -21.7 C (-7.1 F) | 5.0 C (9.0 F) | 116 years | 47 of 100 (Notable) |
| 14 January 2024 | Hamilton, US | daily low min | -31.7 C (-25.1 F) | 4.5 C (8.1 F) | 116 years | 45 of 100 (Notable) |
| 13 January 2024 | Hamilton, US | daily low min | -35.6 C (-32.1 F) | 8.4 C (15.1 F) | 30 years | 29 of 100 (Routine) |
| 13 January 2024 | Hamilton, US | monthly low max (Tie) | -23.3 C (-9.9 F) | tie | 61 years | 9 of 100 (Routine) |
| 6 December 2023 | Hamilton, US | daily high max (Tie) | 16.7 C (62.1 F) | tie | 84 years | 8 of 100 (Routine) |
| 5 December 2023 | Hamilton, US | daily high min | 6.1 C (43.0 F) | 3.9 C (7.0 F) | 32 years | 24 of 100 (Routine) |
| 5 December 2023 | Hamilton, US | daily high max | 15.6 C (60.1 F) | 2.3 C (4.1 F) | 16 years | 17 of 100 (Routine) |
| 20 June 2023 | Hamilton, US | daily low min (Tie) | 0.6 C (33.1 F) | tie | 80 years | 8 of 100 (Routine) |
| 19 June 2023 | Hamilton, US | daily low min (Tie) | 0.6 C (33.1 F) | tie | 72 years | 7 of 100 (Routine) |
| 11 April 2023 | Hamilton, US | daily high min | 10.0 C (50.0 F) | 2.2 C (4.0 F) | 86 years | 42 of 100 (Notable) |
| 4 April 2023 | Hamilton, US | daily snow depth | 5.1 cm (2.0 in) | 5.1 cm (2.0 in) | 94 years | 20 of 100 (Routine) |
| 4 April 2023 | Hamilton, US | daily snowfall (Tie) | 2.5 cm (1.0 in) | tie | 68 years | 7 of 100 (Routine) |
| 3 April 2023 | Hamilton, US | daily snowfall | 6.1 cm (2.4 in) | 3.6 cm (1.4 in) | 116 years | 52 of 100 (Notable) |
| 3 April 2023 | Hamilton, US | daily snow depth | 7.6 cm (3.0 in) | 5.1 cm (2.0 in) | 86 years | 20 of 100 (Routine) |
Climate Trend
98 complete years, 1900 to 2021| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1900 | 8.5 C | +0.73 C |
| 1903 | 7.0 C | -0.84 C |
| 1904 | 8.7 C | +0.88 C |
| 1908 | 7.8 C | -0.05 C |
| 1909 | 7.9 C | +0.06 C |
| 1910 | 8.6 C | +0.82 C |
| 1911 | 6.9 C | -0.95 C |
| 1912 | 7.3 C | -0.54 C |
| 1913 | 6.9 C | -0.89 C |
| 1914 | 8.6 C | +0.79 C |
| 1928 | 7.6 C | -0.20 C |
| 1929 | 7.3 C | -0.49 C |
| 1930 | 7.3 C | -0.53 C |
| 1931 | 8.4 C | +0.54 C |
| 1932 | 7.5 C | -0.29 C |
| 1933 | 8.3 C | +0.46 C |
| 1934 | 10.0 C | +2.17 C |
| 1935 | 8.3 C | +0.46 C |
| 1936 | 8.1 C | +0.24 C |
| 1937 | 7.4 C | -0.38 C |
| 1938 | 8.2 C | +0.39 C |
| 1939 | 9.3 C | +1.44 C |
| 1940 | 8.8 C | +0.95 C |
| 1941 | 8.4 C | +0.54 C |
| 1942 | 7.3 C | -0.53 C |
| 1943 | 6.8 C | -0.97 C |
| 1944 | 7.6 C | -0.17 C |
| 1945 | 8.2 C | +0.40 C |
| 1946 | 8.4 C | +0.59 C |
| 1947 | 8.5 C | +0.73 C |
| 1948 | 6.9 C | -0.88 C |
| 1949 | 7.4 C | -0.41 C |
| 1950 | 7.3 C | -0.54 C |
| 1951 | 6.8 C | -1.05 C |
| 1952 | 7.9 C | +0.12 C |
| 1953 | 9.3 C | +1.51 C |
| 1954 | 8.0 C | +0.14 C |
| 1955 | 6.1 C | -1.67 C |
| 1956 | 7.6 C | -0.24 C |
| 1957 | 7.5 C | -0.33 C |
| 1958 | 8.9 C | +1.13 C |
| 1959 | 7.4 C | -0.46 C |
| 1960 | 7.3 C | -0.48 C |
| 1961 | 8.2 C | +0.34 C |
| 1962 | 7.5 C | -0.31 C |
| 1963 | 7.6 C | -0.26 C |
| 1964 | 6.9 C | -0.93 C |
| 1965 | 7.4 C | -0.46 C |
| 1966 | 8.5 C | +0.67 C |
| 1967 | 8.6 C | +0.82 C |
| 1968 | 7.3 C | -0.50 C |
| 1969 | 7.6 C | -0.26 C |
| 1970 | 7.5 C | -0.36 C |
| 1971 | 7.5 C | -0.32 C |
| 1972 | 7.3 C | -0.53 C |
| 1973 | 7.7 C | -0.09 C |
| 1974 | 7.9 C | +0.04 C |
| 1975 | 6.9 C | -0.89 C |
| 1976 | 7.9 C | +0.04 C |
| 1977 | 7.4 C | -0.37 C |
| 1978 | 7.2 C | -0.58 C |
| 1979 | 6.9 C | -0.93 C |
| 1980 | 7.4 C | -0.38 C |
| 1981 | 7.9 C | +0.04 C |
| 1982 | 6.7 C | -1.12 C |
| 1983 | 7.5 C | -0.35 C |
| 1984 | 7.7 C | -0.13 C |
| 1985 | 6.4 C | -1.45 C |
| 1986 | 8.2 C | +0.36 C |
| 1987 | 8.6 C | +0.77 C |
| 1988 | 8.8 C | +0.95 C |
| 1989 | 7.7 C | -0.07 C |
| 1990 | 8.2 C | +0.41 C |
| 1991 | 8.1 C | +0.24 C |
| 1992 | 8.5 C | +0.68 C |
| 1993 | 6.2 C | -1.64 C |
| 1994 | 8.8 C | +1.01 C |
| 1995 | 7.6 C | -0.19 C |
| 1996 | 7.2 C | -0.62 C |
| 1997 | 7.9 C | +0.06 C |
| 1998 | 9.1 C | +1.26 C |
| 1999 | 8.8 C | +0.99 C |
| 2000 | 8.2 C | +0.36 C |
| 2001 | 8.5 C | +0.69 C |
| 2002 | 7.9 C | +0.05 C |
| 2003 | 8.7 C | +0.88 C |
| 2007 | 8.2 C | +0.42 C |
| 2008 | 7.1 C | -0.72 C |
| 2009 | 7.3 C | -0.50 C |
| 2010 | 7.3 C | -0.49 C |
| 2011 | 7.4 C | -0.45 C |
| 2012 | 8.4 C | +0.62 C |
| 2013 | 8.0 C | +0.17 C |
| 2014 | 7.9 C | +0.07 C |
| 2015 | 8.9 C | +1.08 C |
| 2018 | 7.7 C | -0.12 C |
| 2020 | 7.6 C | -0.18 C |
| 2021 | 8.0 C | +0.21 C |
The fitted trend in annual mean temperature here over 1900 to 2021 is 0.00 C (-0.05 to 0.05) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.00 F (-0.08 to 0.08) per decade. The slope is a straight line fitted to 98 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.00 C (-0.05 to 0.05) per decade | 0.00 F (-0.08 to 0.08) per decade | 1900 to 2021 | 98 | Not clearly different from zero |
| Mean daily maximum | 0.00 C (-0.06 to 0.07) per decade | 0.01 F (-0.10 to 0.12) per decade | 1900 to 2021 | 98 | Not clearly different from zero |
| Mean daily minimum | -0.01 C (-0.05 to 0.04) per decade | -0.01 F (-0.09 to 0.07) per decade | 1900 to 2021 | 98 | 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
1895 to 2024| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.6 C (105.1 F) | 1895 | 36.1 C (97.0 F) | 124 |
| Coldest night (TNn) | -39.4 C (-38.9 F) | 1899 | -25.8 C (-14.5 F) | 124 |
| Wettest day (Rx1day) | 56.6 mm (2.2 in) | 1952 | 22.6 mm (0.9 in) | 124 |
| Wettest five days (Rx5day) | 109.4 mm (4.3 in) | 1964 | 35.9 mm (1.4 in) | 123 |
| Longest dry spell (CDD) | 125 days | 1924 | 31 days | 124 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1895 | 40.6 C (105.1 F) |
| 1898 | 27.8 C (82.0 F) |
| 1899 | 36.7 C (98.1 F) |
| 1900 | 38.3 C (100.9 F) |
| 1901 | 37.8 C (100.0 F) |
| 1902 | 19.4 C (66.9 F) |
| 1903 | 34.4 C (93.9 F) |
| 1904 | 33.9 C (93.0 F) |
| 1905 | 34.4 C (93.9 F) |
| 1906 | 33.9 C (93.0 F) |
| 1907 | 32.2 C (90.0 F) |
| 1908 | 35.6 C (96.1 F) |
| 1909 | 33.9 C (93.0 F) |
| 1910 | 36.1 C (97.0 F) |
| 1911 | 33.9 C (93.0 F) |
| 1912 | 33.3 C (91.9 F) |
| 1913 | 35.0 C (95.0 F) |
| 1914 | 34.4 C (93.9 F) |
| 1915 | 34.4 C (93.9 F) |
| 1916 | 34.4 C (93.9 F) |
| 1917 | 33.9 C (93.0 F) |
| 1918 | 35.6 C (96.1 F) |
| 1919 | 37.8 C (100.0 F) |
| 1920 | 24.4 C (75.9 F) |
| 1921 | 37.2 C (99.0 F) |
| 1922 | 36.1 C (97.0 F) |
| 1923 | 22.2 C (72.0 F) |
| 1924 | 35.6 C (96.1 F) |
| 1928 | 38.3 C (100.9 F) |
| 1929 | 38.3 C (100.9 F) |
| 1930 | 37.8 C (100.0 F) |
| 1931 | 39.4 C (102.9 F) |
| 1932 | 35.6 C (96.1 F) |
| 1933 | 37.8 C (100.0 F) |
| 1934 | 39.4 C (102.9 F) |
| 1935 | 38.9 C (102.0 F) |
| 1936 | 38.9 C (102.0 F) |
| 1937 | 38.3 C (100.9 F) |
| 1938 | 34.4 C (93.9 F) |
| 1939 | 36.7 C (98.1 F) |
| 1940 | 38.3 C (100.9 F) |
| 1941 | 36.1 C (97.0 F) |
| 1942 | 36.7 C (98.1 F) |
| 1943 | 35.6 C (96.1 F) |
| 1944 | 35.0 C (95.0 F) |
| 1945 | 37.2 C (99.0 F) |
| 1946 | 36.7 C (98.1 F) |
| 1947 | 36.1 C (97.0 F) |
| 1948 | 35.6 C (96.1 F) |
| 1949 | 36.1 C (97.0 F) |
| 1950 | 33.9 C (93.0 F) |
| 1951 | 35.0 C (95.0 F) |
| 1952 | 36.1 C (97.0 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 35.0 C (95.0 F) |
| 1955 | 35.0 C (95.0 F) |
| 1956 | 35.0 C (95.0 F) |
| 1957 | 35.0 C (95.0 F) |
| 1958 | 36.7 C (98.1 F) |
| 1959 | 36.1 C (97.0 F) |
| 1960 | 38.3 C (100.9 F) |
| 1961 | 38.3 C (100.9 F) |
| 1962 | 34.4 C (93.9 F) |
| 1963 | 34.4 C (93.9 F) |
| 1964 | 33.9 C (93.0 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 36.7 C (98.1 F) |
| 1968 | 36.1 C (97.0 F) |
| 1969 | 39.4 C (102.9 F) |
| 1970 | 36.7 C (98.1 F) |
| 1971 | 36.1 C (97.0 F) |
| 1972 | 35.6 C (96.1 F) |
| 1973 | 38.9 C (102.0 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 34.4 C (93.9 F) |
| 1976 | 33.3 C (91.9 F) |
| 1977 | 35.0 C (95.0 F) |
| 1978 | 34.4 C (93.9 F) |
| 1979 | 35.0 C (95.0 F) |
| 1980 | 34.4 C (93.9 F) |
| 1981 | 36.1 C (97.0 F) |
| 1982 | 33.9 C (93.0 F) |
| 1983 | 36.7 C (98.1 F) |
| 1984 | 36.7 C (98.1 F) |
| 1985 | 37.8 C (100.0 F) |
| 1986 | 36.7 C (98.1 F) |
| 1987 | 35.6 C (96.1 F) |
| 1988 | 36.1 C (97.0 F) |
| 1989 | 37.2 C (99.0 F) |
| 1990 | 37.8 C (100.0 F) |
| 1991 | 36.1 C (97.0 F) |
| 1992 | 36.7 C (98.1 F) |
| 1993 | 33.9 C (93.0 F) |
| 1994 | 36.7 C (98.1 F) |
| 1995 | 35.6 C (96.1 F) |
| 1996 | 37.2 C (99.0 F) |
| 1997 | 35.6 C (96.1 F) |
| 1998 | 37.2 C (99.0 F) |
| 1999 | 37.2 C (99.0 F) |
| 2000 | 37.8 C (100.0 F) |
| 2001 | 37.2 C (99.0 F) |
| 2002 | 38.3 C (100.9 F) |
| 2003 | 38.9 C (102.0 F) |
| 2004 | 37.2 C (99.0 F) |
| 2006 | 33.9 C (93.0 F) |
| 2007 | 38.9 C (102.0 F) |
| 2008 | 37.2 C (99.0 F) |
| 2009 | 37.2 C (99.0 F) |
| 2010 | 36.1 C (97.0 F) |
| 2011 | 36.1 C (97.0 F) |
| 2012 | 37.2 C (99.0 F) |
| 2013 | 37.8 C (100.0 F) |
| 2014 | 35.6 C (96.1 F) |
| 2015 | 38.9 C (102.0 F) |
| 2016 | 35.0 C (95.0 F) |
| 2017 | 23.9 C (75.0 F) |
| 2018 | 36.1 C (97.0 F) |
| 2019 | 34.4 C (93.9 F) |
| 2020 | 35.0 C (95.0 F) |
| 2021 | 36.7 C (98.1 F) |
| 2022 | 36.1 C (97.0 F) |
| 2023 | 36.7 C (98.1 F) |
| 2024 | 21.1 C (70.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1895 | -14.4 C (6.1 F) |
| 1898 | -23.9 C (-11.0 F) |
| 1899 | -39.4 C (-38.9 F) |
| 1900 | -32.2 C (-26.0 F) |
| 1901 | -15.0 C (5.0 F) |
| 1902 | -14.4 C (6.1 F) |
| 1903 | -21.1 C (-6.0 F) |
| 1904 | -23.3 C (-9.9 F) |
| 1905 | -33.3 C (-27.9 F) |
| 1906 | -25.0 C (-13.0 F) |
| 1907 | -27.8 C (-18.0 F) |
| 1908 | -22.8 C (-9.0 F) |
| 1909 | -36.1 C (-33.0 F) |
| 1910 | -32.2 C (-26.0 F) |
| 1911 | -26.1 C (-15.0 F) |
| 1912 | -21.7 C (-7.1 F) |
| 1913 | -30.0 C (-22.0 F) |
| 1914 | -32.8 C (-27.0 F) |
| 1915 | -25.0 C (-13.0 F) |
| 1916 | -34.4 C (-29.9 F) |
| 1917 | -23.3 C (-9.9 F) |
| 1918 | -28.3 C (-18.9 F) |
| 1919 | -23.9 C (-11.0 F) |
| 1920 | -22.2 C (-8.0 F) |
| 1921 | -14.4 C (6.1 F) |
| 1922 | -30.0 C (-22.0 F) |
| 1923 | -23.3 C (-9.9 F) |
| 1924 | -21.7 C (-7.1 F) |
| 1928 | -24.4 C (-11.9 F) |
| 1929 | -32.2 C (-26.0 F) |
| 1930 | -35.6 C (-32.1 F) |
| 1931 | -25.6 C (-14.1 F) |
| 1932 | -34.4 C (-29.9 F) |
| 1933 | -34.4 C (-29.9 F) |
| 1934 | -22.2 C (-8.0 F) |
| 1935 | -32.2 C (-26.0 F) |
| 1936 | -37.8 C (-36.0 F) |
| 1937 | -37.8 C (-36.0 F) |
| 1938 | -26.7 C (-16.1 F) |
| 1939 | -31.1 C (-24.0 F) |
| 1940 | -23.3 C (-9.9 F) |
| 1941 | -22.8 C (-9.0 F) |
| 1942 | -31.1 C (-24.0 F) |
| 1943 | -27.8 C (-18.0 F) |
| 1944 | -30.6 C (-23.1 F) |
| 1945 | -24.4 C (-11.9 F) |
| 1946 | -17.8 C (0.0 F) |
| 1947 | -18.9 C (-2.0 F) |
| 1948 | -25.0 C (-13.0 F) |
| 1949 | -31.1 C (-24.0 F) |
| 1950 | -31.7 C (-25.1 F) |
| 1951 | -28.3 C (-18.9 F) |
| 1952 | -26.7 C (-16.1 F) |
| 1953 | -11.7 C (10.9 F) |
| 1954 | -26.7 C (-16.1 F) |
| 1955 | -31.1 C (-24.0 F) |
| 1956 | -26.7 C (-16.1 F) |
| 1957 | -37.2 C (-35.0 F) |
| 1958 | -16.7 C (1.9 F) |
| 1959 | -31.1 C (-24.0 F) |
| 1960 | -29.4 C (-20.9 F) |
| 1961 | -26.7 C (-16.1 F) |
| 1962 | -30.6 C (-23.1 F) |
| 1963 | -32.8 C (-27.0 F) |
| 1964 | -35.0 C (-31.0 F) |
| 1965 | -23.9 C (-11.0 F) |
| 1966 | -20.0 C (-4.0 F) |
| 1967 | -22.2 C (-8.0 F) |
| 1968 | -27.2 C (-17.0 F) |
| 1969 | -29.4 C (-20.9 F) |
| 1970 | -24.4 C (-11.9 F) |
| 1971 | -21.7 C (-7.1 F) |
| 1972 | -35.0 C (-31.0 F) |
| 1973 | -28.9 C (-20.0 F) |
| 1974 | -30.6 C (-23.1 F) |
| 1975 | -25.0 C (-13.0 F) |
| 1976 | -23.3 C (-9.9 F) |
| 1977 | -23.3 C (-9.9 F) |
| 1978 | -32.8 C (-27.0 F) |
| 1979 | -33.3 C (-27.9 F) |
| 1980 | -26.7 C (-16.1 F) |
| 1981 | -28.9 C (-20.0 F) |
| 1982 | -29.4 C (-20.9 F) |
| 1983 | -34.4 C (-29.9 F) |
| 1984 | -25.6 C (-14.1 F) |
| 1985 | -28.3 C (-18.9 F) |
| 1986 | -23.3 C (-9.9 F) |
| 1987 | -21.7 C (-7.1 F) |
| 1988 | -26.1 C (-15.0 F) |
| 1989 | -34.4 C (-29.9 F) |
| 1990 | -32.8 C (-27.0 F) |
| 1991 | -21.1 C (-6.0 F) |
| 1992 | -23.9 C (-11.0 F) |
| 1993 | -28.9 C (-20.0 F) |
| 1994 | -21.7 C (-7.1 F) |
| 1995 | -22.2 C (-8.0 F) |
| 1996 | -32.2 C (-26.0 F) |
| 1997 | -21.1 C (-6.0 F) |
| 1998 | -30.0 C (-22.0 F) |
| 1999 | -18.3 C (-0.9 F) |
| 2000 | -18.3 C (-0.9 F) |
| 2001 | -18.9 C (-2.0 F) |
| 2002 | -20.6 C (-5.1 F) |
| 2003 | -21.1 C (-6.0 F) |
| 2004 | -32.2 C (-26.0 F) |
| 2006 | -16.7 C (1.9 F) |
| 2007 | -20.6 C (-5.1 F) |
| 2008 | -26.1 C (-15.0 F) |
| 2009 | -26.1 C (-15.0 F) |
| 2010 | -24.4 C (-11.9 F) |
| 2011 | -22.8 C (-9.0 F) |
| 2012 | -13.3 C (8.1 F) |
| 2013 | -23.9 C (-11.0 F) |
| 2014 | -28.3 C (-18.9 F) |
| 2015 | -19.4 C (-2.9 F) |
| 2016 | -19.4 C (-2.9 F) |
| 2017 | -19.4 C (-2.9 F) |
| 2018 | -21.1 C (-6.0 F) |
| 2019 | -25.6 C (-14.1 F) |
| 2020 | -20.6 C (-5.1 F) |
| 2021 | -22.2 C (-8.0 F) |
| 2022 | -28.3 C (-18.9 F) |
| 2023 | -25.6 C (-14.1 F) |
| 2024 | -35.6 C (-32.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1895 | 7.6 mm (0.30 in) |
| 1898 | 6.4 mm (0.25 in) |
| 1899 | 19.1 mm (0.8 in) |
| 1900 | 44.5 mm (1.8 in) |
| 1901 | 30.5 mm (1.2 in) |
| 1902 | 15.7 mm (0.6 in) |
| 1903 | 15.5 mm (0.6 in) |
| 1904 | 14.0 mm (0.6 in) |
| 1905 | 11.4 mm (0.4 in) |
| 1906 | 21.3 mm (0.8 in) |
| 1907 | 26.7 mm (1.1 in) |
| 1908 | 22.6 mm (0.9 in) |
| 1909 | 26.7 mm (1.1 in) |
| 1910 | 17.0 mm (0.7 in) |
| 1911 | 43.2 mm (1.7 in) |
| 1912 | 26.4 mm (1.0 in) |
| 1913 | 21.3 mm (0.8 in) |
| 1914 | 17.8 mm (0.7 in) |
| 1915 | 22.9 mm (0.9 in) |
| 1916 | 14.0 mm (0.6 in) |
| 1917 | 28.4 mm (1.1 in) |
| 1918 | 13.2 mm (0.5 in) |
| 1919 | 21.6 mm (0.9 in) |
| 1920 | 22.1 mm (0.9 in) |
| 1921 | 28.7 mm (1.1 in) |
| 1922 | 20.3 mm (0.8 in) |
| 1923 | 5.1 mm (0.20 in) |
| 1924 | 12.7 mm (0.5 in) |
| 1928 | 14.0 mm (0.6 in) |
| 1929 | 18.8 mm (0.7 in) |
| 1930 | 14.0 mm (0.6 in) |
| 1931 | 17.8 mm (0.7 in) |
| 1932 | 17.8 mm (0.7 in) |
| 1933 | 28.2 mm (1.1 in) |
| 1934 | 24.1 mm (0.9 in) |
| 1935 | 14.5 mm (0.6 in) |
| 1936 | 18.5 mm (0.7 in) |
| 1937 | 17.8 mm (0.7 in) |
| 1938 | 41.1 mm (1.6 in) |
| 1939 | 16.3 mm (0.6 in) |
| 1940 | 36.3 mm (1.4 in) |
| 1941 | 26.2 mm (1.0 in) |
| 1942 | 21.1 mm (0.8 in) |
| 1943 | 16.8 mm (0.7 in) |
| 1944 | 31.8 mm (1.3 in) |
| 1945 | 11.4 mm (0.4 in) |
| 1946 | 25.9 mm (1.0 in) |
| 1947 | 26.9 mm (1.1 in) |
| 1948 | 21.1 mm (0.8 in) |
| 1949 | 36.8 mm (1.4 in) |
| 1950 | 25.9 mm (1.0 in) |
| 1951 | 18.5 mm (0.7 in) |
| 1952 | 56.6 mm (2.2 in) |
| 1953 | 36.8 mm (1.4 in) |
| 1954 | 36.8 mm (1.4 in) |
| 1955 | 30.5 mm (1.2 in) |
| 1956 | 27.9 mm (1.1 in) |
| 1957 | 25.1 mm (1.0 in) |
| 1958 | 29.2 mm (1.1 in) |
| 1959 | 27.7 mm (1.1 in) |
| 1960 | 11.4 mm (0.4 in) |
| 1961 | 19.8 mm (0.8 in) |
| 1962 | 39.4 mm (1.6 in) |
| 1963 | 24.1 mm (0.9 in) |
| 1964 | 40.1 mm (1.6 in) |
| 1965 | 49.0 mm (1.9 in) |
| 1966 | 11.7 mm (0.5 in) |
| 1967 | 26.7 mm (1.1 in) |
| 1968 | 21.8 mm (0.9 in) |
| 1969 | 46.5 mm (1.8 in) |
| 1970 | 23.1 mm (0.9 in) |
| 1971 | 35.6 mm (1.4 in) |
| 1972 | 17.8 mm (0.7 in) |
| 1973 | 27.9 mm (1.1 in) |
| 1974 | 44.2 mm (1.7 in) |
| 1975 | 29.0 mm (1.1 in) |
| 1976 | 22.6 mm (0.9 in) |
| 1977 | 14.0 mm (0.6 in) |
| 1978 | 24.1 mm (0.9 in) |
| 1979 | 36.3 mm (1.4 in) |
| 1980 | 28.7 mm (1.1 in) |
| 1981 | 29.5 mm (1.2 in) |
| 1982 | 22.9 mm (0.9 in) |
| 1983 | 28.7 mm (1.1 in) |
| 1984 | 25.9 mm (1.0 in) |
| 1985 | 25.7 mm (1.0 in) |
| 1986 | 20.3 mm (0.8 in) |
| 1987 | 13.2 mm (0.5 in) |
| 1988 | 24.9 mm (1.0 in) |
| 1989 | 19.3 mm (0.8 in) |
| 1990 | 20.1 mm (0.8 in) |
| 1991 | 20.1 mm (0.8 in) |
| 1992 | 11.2 mm (0.4 in) |
| 1993 | 26.2 mm (1.0 in) |
| 1994 | 22.4 mm (0.9 in) |
| 1995 | 25.4 mm (1.0 in) |
| 1996 | 34.0 mm (1.3 in) |
| 1997 | 24.4 mm (1.0 in) |
| 1998 | 32.3 mm (1.3 in) |
| 1999 | 17.0 mm (0.7 in) |
| 2000 | 18.3 mm (0.7 in) |
| 2001 | 15.5 mm (0.6 in) |
| 2002 | 24.9 mm (1.0 in) |
| 2003 | 16.5 mm (0.6 in) |
| 2004 | 20.6 mm (0.8 in) |
| 2006 | 19.1 mm (0.8 in) |
| 2007 | 24.1 mm (0.9 in) |
| 2008 | 21.6 mm (0.9 in) |
| 2009 | 14.0 mm (0.6 in) |
| 2010 | 30.0 mm (1.2 in) |
| 2011 | 37.8 mm (1.5 in) |
| 2012 | 21.1 mm (0.8 in) |
| 2013 | 13.7 mm (0.5 in) |
| 2014 | 21.3 mm (0.8 in) |
| 2015 | 18.5 mm (0.7 in) |
| 2016 | 30.5 mm (1.2 in) |
| 2017 | 6.1 mm (0.24 in) |
| 2018 | 26.9 mm (1.1 in) |
| 2019 | 29.2 mm (1.1 in) |
| 2020 | 40.6 mm (1.6 in) |
| 2021 | 35.6 mm (1.4 in) |
| 2022 | 11.7 mm (0.5 in) |
| 2023 | 10.7 mm (0.4 in) |
| 2024 | 12.7 mm (0.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1895 | 12.0 mm (0.5 in) |
| 1898 | 10.2 mm (0.4 in) |
| 1899 | 31.8 mm (1.3 in) |
| 1900 | 48.3 mm (1.9 in) |
| 1901 | 53.4 mm (2.1 in) |
| 1902 | 16.8 mm (0.7 in) |
| 1903 | 21.7 mm (0.9 in) |
| 1904 | 19.1 mm (0.8 in) |
| 1905 | 31.5 mm (1.2 in) |
| 1906 | 43.7 mm (1.7 in) |
| 1907 | 52.1 mm (2.1 in) |
| 1908 | 58.4 mm (2.3 in) |
| 1909 | 44.4 mm (1.7 in) |
| 1910 | 36.8 mm (1.4 in) |
| 1911 | 43.2 mm (1.7 in) |
| 1912 | 75.4 mm (3.0 in) |
| 1913 | 41.6 mm (1.6 in) |
| 1914 | 20.7 mm (0.8 in) |
| 1915 | 40.7 mm (1.6 in) |
| 1916 | 32.3 mm (1.3 in) |
| 1917 | 38.6 mm (1.5 in) |
| 1918 | 19.3 mm (0.8 in) |
| 1919 | 21.6 mm (0.9 in) |
| 1920 | 36.1 mm (1.4 in) |
| 1921 | 30.0 mm (1.2 in) |
| 1922 | 40.3 mm (1.6 in) |
| 1923 | 7.6 mm (0.30 in) |
| 1924 | 18.7 mm (0.7 in) |
| 1928 | 23.1 mm (0.9 in) |
| 1929 | 49.6 mm (2.0 in) |
| 1930 | 36.8 mm (1.4 in) |
| 1931 | 42.1 mm (1.7 in) |
| 1932 | 22.9 mm (0.9 in) |
| 1933 | 28.0 mm (1.1 in) |
| 1934 | 43.4 mm (1.7 in) |
| 1935 | 16.3 mm (0.6 in) |
| 1936 | 40.4 mm (1.6 in) |
| 1937 | 23.6 mm (0.9 in) |
| 1938 | 69.5 mm (2.7 in) |
| 1939 | 28.0 mm (1.1 in) |
| 1940 | 51.9 mm (2.0 in) |
| 1941 | 36.8 mm (1.4 in) |
| 1942 | 51.3 mm (2.0 in) |
| 1943 | 32.9 mm (1.3 in) |
| 1944 | 38.6 mm (1.5 in) |
| 1945 | 33.2 mm (1.3 in) |
| 1946 | 56.9 mm (2.2 in) |
| 1947 | 47.0 mm (1.9 in) |
| 1948 | 27.7 mm (1.1 in) |
| 1949 | 45.3 mm (1.8 in) |
| 1950 | 50.5 mm (2.0 in) |
| 1951 | 31.2 mm (1.2 in) |
| 1952 | 64.8 mm (2.6 in) |
| 1953 | 38.1 mm (1.5 in) |
| 1954 | 45.2 mm (1.8 in) |
| 1955 | 55.9 mm (2.2 in) |
| 1956 | 30.0 mm (1.2 in) |
| 1957 | 26.1 mm (1.0 in) |
| 1958 | 34.9 mm (1.4 in) |
| 1959 | 32.5 mm (1.3 in) |
| 1960 | 22.3 mm (0.9 in) |
| 1961 | 41.7 mm (1.6 in) |
| 1962 | 66.6 mm (2.6 in) |
| 1963 | 36.3 mm (1.4 in) |
| 1964 | 109.4 mm (4.3 in) |
| 1965 | 53.6 mm (2.1 in) |
| 1966 | 29.5 mm (1.2 in) |
| 1967 | 37.1 mm (1.5 in) |
| 1968 | 32.5 mm (1.3 in) |
| 1969 | 52.6 mm (2.1 in) |
| 1970 | 37.4 mm (1.5 in) |
| 1971 | 42.9 mm (1.7 in) |
| 1972 | 37.4 mm (1.5 in) |
| 1973 | 44.4 mm (1.7 in) |
| 1974 | 52.9 mm (2.1 in) |
| 1975 | 50.9 mm (2.0 in) |
| 1976 | 28.4 mm (1.1 in) |
| 1977 | 29.8 mm (1.2 in) |
| 1978 | 39.1 mm (1.5 in) |
| 1979 | 40.2 mm (1.6 in) |
| 1980 | 54.6 mm (2.1 in) |
| 1981 | 51.1 mm (2.0 in) |
| 1982 | 29.0 mm (1.1 in) |
| 1983 | 35.8 mm (1.4 in) |
| 1984 | 32.7 mm (1.3 in) |
| 1985 | 50.5 mm (2.0 in) |
| 1986 | 38.9 mm (1.5 in) |
| 1987 | 24.8 mm (1.0 in) |
| 1988 | 57.3 mm (2.3 in) |
| 1989 | 27.0 mm (1.1 in) |
| 1990 | 31.8 mm (1.3 in) |
| 1991 | 32.0 mm (1.3 in) |
| 1992 | 22.2 mm (0.9 in) |
| 1993 | 35.1 mm (1.4 in) |
| 1994 | 31.0 mm (1.2 in) |
| 1995 | 38.8 mm (1.5 in) |
| 1996 | 52.6 mm (2.1 in) |
| 1997 | 59.1 mm (2.3 in) |
| 1998 | 43.0 mm (1.7 in) |
| 1999 | 31.4 mm (1.2 in) |
| 2000 | 29.7 mm (1.2 in) |
| 2001 | 23.7 mm (0.9 in) |
| 2002 | 32.2 mm (1.3 in) |
| 2003 | 30.2 mm (1.2 in) |
| 2004 | 34.8 mm (1.4 in) |
| 2006 | 35.1 mm (1.4 in) |
| 2007 | 38.1 mm (1.5 in) |
| 2008 | 28.7 mm (1.1 in) |
| 2009 | 36.8 mm (1.4 in) |
| 2010 | 44.2 mm (1.7 in) |
| 2011 | 43.4 mm (1.7 in) |
| 2012 | 30.7 mm (1.2 in) |
| 2013 | 24.3 mm (1.0 in) |
| 2014 | 35.1 mm (1.4 in) |
| 2015 | 34.9 mm (1.4 in) |
| 2016 | 35.9 mm (1.4 in) |
| 2017 | 6.6 mm (0.26 in) |
| 2018 | 12.2 mm (0.5 in) |
| 2019 | 32.8 mm (1.3 in) |
| 2020 | 53.0 mm (2.1 in) |
| 2021 | 20.1 mm (0.8 in) |
| 2022 | 13.0 mm (0.5 in) |
| 2023 | 12.7 mm (0.5 in) |
| 2024 | n/a |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1895 | 48 days |
| 1898 | 42 days |
| 1899 | 85 days |
| 1900 | 41 days |
| 1901 | 64 days |
| 1902 | 13 days |
| 1903 | 30 days |
| 1904 | 42 days |
| 1905 | 30 days |
| 1906 | 37 days |
| 1907 | 40 days |
| 1908 | 40 days |
| 1909 | 23 days |
| 1910 | 33 days |
| 1911 | 38 days |
| 1912 | 28 days |
| 1913 | 42 days |
| 1914 | 72 days |
| 1915 | 42 days |
| 1916 | 89 days |
| 1917 | 69 days |
| 1918 | 44 days |
| 1919 | 51 days |
| 1920 | 80 days |
| 1921 | 47 days |
| 1922 | 49 days |
| 1923 | 55 days |
| 1924 | 125 days |
| 1928 | 23 days |
| 1929 | 38 days |
| 1930 | 40 days |
| 1931 | 43 days |
| 1932 | 27 days |
| 1933 | 41 days |
| 1934 | 41 days |
| 1935 | 47 days |
| 1936 | 28 days |
| 1937 | 25 days |
| 1938 | 28 days |
| 1939 | 47 days |
| 1940 | 37 days |
| 1941 | 38 days |
| 1942 | 34 days |
| 1943 | 32 days |
| 1944 | 36 days |
| 1945 | 23 days |
| 1946 | 29 days |
| 1947 | 22 days |
| 1948 | 31 days |
| 1949 | 41 days |
| 1950 | 32 days |
| 1951 | 43 days |
| 1952 | 37 days |
| 1953 | 48 days |
| 1954 | 28 days |
| 1955 | 51 days |
| 1956 | 33 days |
| 1957 | 20 days |
| 1958 | 19 days |
| 1959 | 41 days |
| 1960 | 44 days |
| 1961 | 28 days |
| 1962 | 21 days |
| 1963 | 25 days |
| 1964 | 29 days |
| 1965 | 32 days |
| 1966 | 32 days |
| 1967 | 29 days |
| 1968 | 29 days |
| 1969 | 65 days |
| 1970 | 29 days |
| 1971 | 36 days |
| 1972 | 18 days |
| 1973 | 21 days |
| 1974 | 23 days |
| 1975 | 27 days |
| 1976 | 35 days |
| 1977 | 25 days |
| 1978 | 33 days |
| 1979 | 44 days |
| 1980 | 22 days |
| 1981 | 23 days |
| 1982 | 17 days |
| 1983 | 22 days |
| 1984 | 26 days |
| 1985 | 33 days |
| 1986 | 26 days |
| 1987 | 68 days |
| 1988 | 58 days |
| 1989 | 20 days |
| 1990 | 26 days |
| 1991 | 44 days |
| 1992 | 27 days |
| 1993 | 23 days |
| 1994 | 23 days |
| 1995 | 16 days |
| 1996 | 33 days |
| 1997 | 18 days |
| 1998 | 35 days |
| 1999 | 27 days |
| 2000 | 31 days |
| 2001 | 30 days |
| 2002 | 27 days |
| 2003 | 33 days |
| 2004 | 27 days |
| 2006 | 15 days |
| 2007 | 36 days |
| 2008 | 26 days |
| 2009 | 26 days |
| 2010 | 27 days |
| 2011 | 28 days |
| 2012 | 51 days |
| 2013 | 29 days |
| 2014 | 32 days |
| 2015 | 25 days |
| 2016 | 25 days |
| 2017 | 5 days |
| 2018 | 5 days |
| 2019 | 20 days |
| 2020 | 11 days |
| 2021 | 12 days |
| 2022 | 8 days |
| 2023 | 26 days |
| 2024 | 1 day |
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
98 years with a frostAcross 98 years with a frost, the median last spring frost at Hamilton falls on 23 May and the median first autumn frost on 21 September, which leaves a median of 120 days between them.
In 1986 to 2021 the median growing season was 121 days. That is 2 days more than in 1900 to 1947.
Fitted over all years, the growing season changes by +0.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1900 to 1947) | Recent period (1986 to 2021) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 23 May | 24 May | 20 May | 4 days earlier | -0.5 days per decade |
| First autumn frost | 21 September | 22 September | 22 September | no change | 0.0 days per decade |
| Growing days | 120 days | 119 days | 121 days | 2 days more | +0.5 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
104 years, 1899 to 2016A day with at least 23.3 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 53.7 mm (2.1 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 | 31.5 mm (1.2 in) | |
| 10 years | 36.9 mm (1.5 in) | |
| 25 years | 43.7 mm (1.7 in) | |
| 50 years | 48.7 mm (1.9 in) | |
| 100 years | 53.7 mm (2.1 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 104 years of values from 1899 to 2016.
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: 56.6 mm (2.2 in) in 1952; 49.0 mm (1.9 in) in 1965; 46.5 mm (1.8 in) in 1969.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2001 to 2021 against 1961 to 1990Over 2001 to 2021, Hamilton had a mean temperature of 7.9 C (46.3 F) and 321.7 mm (12.7 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Contact (United States, 500 km away), Ibapah (United States, 693 km away) and Beowawe 49S - U of N Rch (United States, 732 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Contact | United States | 500 km (311 mi) | 7.8 C (46.0 F) | 284.3 mm (11.2 in) | 0.66 |
| Ibapah | United States | 693 km (431 mi) | 7.9 C (46.3 F) | 249.1 mm (9.8 in) | 0.72 |
| Beowawe 49S - U of N Rch | United States | 732 km (455 mi) | 8.2 C (46.8 F) | 289.8 mm (11.4 in) | 0.75 |
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 (2025-12-31).