Belle Fourche Weather Records (USC00390559)
Record envelope, standing records and threshold days for Belle Fourche (USC00390559), South Dakota, United States, with 115 years of record.
Key Facts for Belle Fourche
- Belle Fourche (USC00390559) is a weather station in South Dakota, United States at 44.67 latitude and -103.85 longitude, 921 m (3,020 ft) above sea level.
- The station reports from 1908 to 2022, 115 years of record.
- 1,464 records set at Belle Fourche still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Belle Fourche set a daily record precipitation of 50.0 mm (2.0 in) on 24 April 2022.
About the Station
- Location: South Dakota, United States, 44.67 latitude, -103.85 longitude.
- Elevation: 921 m (3,020 ft).
- Period of record: 1908 to 2022, 115 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 | 22.2 C (72.0 F) | -39.4 C (-38.9 F) | n/a | n/a |
| Feb | 22.8 C (73.0 F) | -40.6 C (-41.1 F) | n/a | n/a |
| Mar | 28.3 C (82.9 F) | -34.4 C (-29.9 F) | n/a | n/a |
| Apr | 36.7 C (98.1 F) | -20.6 C (-5.1 F) | n/a | n/a |
| May | 39.4 C (102.9 F) | -9.4 C (15.1 F) | n/a | n/a |
| Jun | 42.8 C (109.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Jul | 44.4 C (111.9 F) | 0.6 C (33.1 F) | n/a | n/a |
| Aug | 42.2 C (108.0 F) | -0.6 C (30.9 F) | n/a | n/a |
| Sep | 41.7 C (107.1 F) | -12.2 C (10.0 F) | n/a | n/a |
| Oct | 35.6 C (96.1 F) | -24.4 C (-11.9 F) | n/a | n/a |
| Nov | 28.3 C (82.9 F) | -32.2 C (-26.0 F) | n/a | n/a |
| Dec | 23.3 C (73.9 F) | -42.2 C (-44.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1908 | 6 |
| 1909 | 14 |
| 1910 | 20 |
| 1911 | 18 |
| 1912 | 13 |
| 1913 | 8 |
| 1914 | 9 |
| 1915 | 13 |
| 1916 | 24 |
| 1917 | 23 |
| 1918 | 31 |
| 1919 | 37 |
| 1920 | 6 |
| 1921 | 15 |
| 1922 | 16 |
| 1923 | 5 |
| 1924 | 15 |
| 1925 | 14 |
| 1926 | 19 |
| 1927 | 15 |
| 1928 | 13 |
| 1929 | 13 |
| 1930 | 16 |
| 1931 | 22 |
| 1932 | 17 |
| 1933 | 10 |
| 1934 | 26 |
| 1935 | 10 |
| 1936 | 26 |
| 1937 | 10 |
| 1938 | 5 |
| 1939 | 14 |
| 1940 | 7 |
| 1941 | 8 |
| 1942 | 7 |
| 1943 | 13 |
| 1944 | 10 |
| 1945 | 7 |
| 1946 | 11 |
| 1947 | 13 |
| 1948 | 15 |
| 1949 | 16 |
| 1950 | 18 |
| 1951 | 17 |
| 1952 | 23 |
| 1953 | 8 |
| 1954 | 11 |
| 1955 | 13 |
| 1956 | 13 |
| 1957 | 4 |
| 1958 | 14 |
| 1959 | 19 |
| 1960 | 9 |
| 1961 | 3 |
| 1962 | 13 |
| 1963 | 5 |
| 1964 | 9 |
| 1965 | 19 |
| 1966 | 11 |
| 1967 | 8 |
| 1968 | 6 |
| 1969 | 13 |
| 1970 | 7 |
| 1971 | 4 |
| 1972 | 9 |
| 1973 | 8 |
| 1974 | 11 |
| 1975 | 6 |
| 1976 | 11 |
| 1977 | 11 |
| 1978 | 8 |
| 1979 | 7 |
| 1980 | 9 |
| 1981 | 9 |
| 1982 | 3 |
| 1983 | 13 |
| 1984 | 7 |
| 1985 | 8 |
| 1986 | 2 |
| 1987 | 7 |
| 1988 | 12 |
| 1989 | 19 |
| 1990 | 9 |
| 1991 | 16 |
| 1992 | 21 |
| 1993 | 6 |
| 1994 | 11 |
| 1995 | 16 |
| 1996 | 12 |
| 1997 | 15 |
| 1998 | 14 |
| 1999 | 11 |
| 2000 | 11 |
| 2001 | 6 |
| 2002 | 7 |
| 2003 | 9 |
| 2004 | 3 |
| 2005 | 11 |
| 2006 | 2 |
| 2007 | 7 |
| 2008 | 6 |
| 2009 | 7 |
| 2010 | 8 |
| 2011 | 8 |
| 2012 | 45 |
| 2013 | 21 |
| 2014 | 29 |
| 2015 | 12 |
| 2016 | 11 |
| 2017 | 13 |
| 2018 | 30 |
| 2019 | 35 |
| 2020 | 8 |
| 2021 | 17 |
| 2022 | 10 |
All-Time Record Progression
10 new records| Date | Kind | Detail |
|---|---|---|
| 1947-08-02 | Record high minimum temperature | Record high minimum temperature 27.8 C (82.0 F) |
| 1970-04-18 | Record daily snowfall | Record daily snowfall 50.8 cm (20.0 in) |
| 1982-05-20 | Record daily precipitation | Record daily precipitation 108.0 mm (4.3 in) |
| 1989-02-03 | Record low maximum temperature | Record low maximum temperature -27.8 C (-18.0 F) |
| 1989-12-22 | Record low minimum temperature | Record low minimum temperature -42.2 C (-44.0 F) |
| 1997-04-09 | Record snow depth | Record snow depth 63.5 cm (25.0 in) |
| 1997-04-10 | Record snow depth | Record snow depth 71.1 cm (28.0 in) |
| 2000-10-31 | Record snow depth | Record snow depth 86.4 cm (34.0 in) |
| 2012-07-22 | Record high minimum temperature | Record high minimum temperature 30.6 C (87.1 F) |
| 2013-10-05 | Record daily snowfall | Record daily snowfall 61.0 cm (24.0 in) |
Wettest Day of Each Month
May: 108.0 mm (4.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 27.9 mm (1.1 in) | 27 January 1944 |
| Feb | 18.3 mm (0.7 in) | 26 February 1998 |
| Mar | 58.4 mm (2.3 in) | 21 March 1993 |
| Apr | 62.0 mm (2.4 in) | 20 April 1933 |
| May | 108.0 mm (4.3 in) | 20 May 1982 |
| Jun | 86.6 mm (3.4 in) | 14 June 1976 |
| Jul | 62.7 mm (2.5 in) | 12 July 1930 |
| Aug | 94.0 mm (3.7 in) | 20 August 1923 |
| Sep | 63.5 mm (2.5 in) | 10 September 2003 |
| Oct | 63.2 mm (2.5 in) | 26 October 1996 |
| Nov | 38.1 mm (1.5 in) | 5 November 1922 |
| Dec | 23.6 mm (0.9 in) | 21 December 1911 |
Period of Record Coverage
1908 to 2022| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1908 | 209 | 57% | No |
| 1909 | 365 | 100% | Yes |
| 1910 | 287 | 79% | No |
| 1911 | 342 | 94% | Yes |
| 1912 | 352 | 96% | Yes |
| 1913 | 264 | 72% | No |
| 1914 | 355 | 97% | Yes |
| 1915 | 355 | 97% | Yes |
| 1916 | 359 | 98% | Yes |
| 1917 | 356 | 98% | Yes |
| 1918 | 344 | 94% | Yes |
| 1919 | 350 | 96% | Yes |
| 1920 | 345 | 94% | Yes |
| 1921 | 342 | 94% | Yes |
| 1922 | 343 | 94% | Yes |
| 1923 | 332 | 91% | Yes |
| 1924 | 331 | 90% | Yes |
| 1925 | 345 | 95% | Yes |
| 1926 | 343 | 94% | Yes |
| 1927 | 303 | 83% | No |
| 1928 | 352 | 96% | Yes |
| 1929 | 351 | 96% | Yes |
| 1930 | 362 | 99% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 365 | 100% | Yes |
| 1933 | 362 | 99% | Yes |
| 1934 | 338 | 93% | Yes |
| 1935 | 359 | 98% | Yes |
| 1936 | 326 | 89% | No |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 362 | 99% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 363 | 99% | Yes |
| 1944 | 365 | 100% | Yes |
| 1945 | 334 | 92% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 363 | 99% | Yes |
| 1949 | 363 | 99% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 363 | 99% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 362 | 99% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 351 | 96% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 309 | 85% | No |
| 1964 | 349 | 95% | Yes |
| 1965 | 364 | 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 | 365 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 361 | 99% | Yes |
| 1977 | 361 | 99% | Yes |
| 1978 | 359 | 98% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 359 | 98% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 285 | 78% | No |
| 1983 | 276 | 76% | No |
| 1984 | 282 | 77% | No |
| 1985 | 193 | 53% | No |
| 1986 | 131 | 36% | No |
| 1987 | 268 | 73% | No |
| 1988 | 320 | 87% | No |
| 1989 | 349 | 96% | Yes |
| 1990 | 357 | 98% | Yes |
| 1991 | 348 | 95% | Yes |
| 1992 | 345 | 94% | Yes |
| 1993 | 312 | 85% | No |
| 1994 | 328 | 90% | No |
| 1995 | 294 | 81% | No |
| 1996 | 291 | 80% | No |
| 1997 | 340 | 93% | Yes |
| 1998 | 297 | 81% | No |
| 1999 | 328 | 90% | No |
| 2000 | 283 | 77% | No |
| 2001 | 313 | 86% | No |
| 2002 | 243 | 67% | No |
| 2003 | 244 | 67% | No |
| 2004 | 174 | 48% | No |
| 2005 | 171 | 47% | No |
| 2006 | 205 | 56% | No |
| 2007 | 204 | 56% | No |
| 2008 | 234 | 64% | No |
| 2009 | 300 | 82% | No |
| 2010 | 365 | 100% | Yes |
| 2011 | 354 | 97% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 363 | 99% | Yes |
| 2015 | 360 | 99% | Yes |
| 2016 | 361 | 99% | Yes |
| 2017 | 333 | 91% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 361 | 99% | Yes |
| 2020 | 315 | 86% | No |
| 2021 | 365 | 100% | Yes |
| 2022 | 120 | 33% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 24 April 2022 | Belle Fourche, US | daily rain | 50.0 mm (2.0 in) | 17.0 mm (0.7 in) | 12 years | 34 of 100 (Routine) |
| 18 April 2022 | Belle Fourche, US | daily low min (Tie) | -8.9 C (16.0 F) | tie | 65 years | 7 of 100 (Routine) |
| 15 April 2022 | Belle Fourche, US | daily low max | -1.7 C (28.9 F) | 1.1 C (2.0 F) | 8 years | 13 of 100 (Routine) |
| 14 April 2022 | Belle Fourche, US | daily low max | -2.2 C (28.0 F) | 2.2 C (4.0 F) | 95 years | 40 of 100 (Notable) |
| 13 April 2022 | Belle Fourche, US | daily low max | -5.6 C (21.9 F) | 1.7 C (3.1 F) | 1 year | 12 of 100 (Routine) |
| 12 March 2022 | Belle Fourche, US | daily high min | 7.8 C (46.0 F) | 1.7 C (3.1 F) | 7 years | 14 of 100 (Routine) |
| 2 March 2022 | Belle Fourche, US | daily high min | 7.8 C (46.0 F) | 2.8 C (5.0 F) | 48 years | 28 of 100 (Routine) |
| 1 March 2022 | Belle Fourche, US | daily high min | 10.0 C (50.0 F) | 5.0 C (9.0 F) | 99 years | 46 of 100 (Notable) |
| 24 February 2022 | Belle Fourche, US | daily low max (Tie) | -13.3 C (8.1 F) | tie | 60 years | 7 of 100 (Routine) |
| 23 February 2022 | Belle Fourche, US | daily low max | -17.2 C (1.0 F) | 1.1 C (2.0 F) | 112 years | 41 of 100 (Notable) |
| 22 February 2022 | Belle Fourche, US | daily low max | -19.4 C (-2.9 F) | 1.6 C (2.9 F) | 112 years | 41 of 100 (Notable) |
| 6 February 2022 | Belle Fourche, US | daily high min | 2.2 C (36.0 F) | 1.6 C (2.9 F) | 92 years | 38 of 100 (Notable) |
| 23 January 2022 | Belle Fourche, US | daily high min | 4.4 C (39.9 F) | 0.5 C (0.9 F) | 18 years | 15 of 100 (Routine) |
| 2 December 2021 | Belle Fourche, US | daily high max | 20.6 C (69.1 F) | 1.2 C (2.2 F) | 80 years | 35 of 100 (Notable) |
| 1 December 2021 | Belle Fourche, US | daily high min | 7.8 C (46.0 F) | 3.4 C (6.1 F) | 32 years | 23 of 100 (Routine) |
| 29 November 2021 | Belle Fourche, US | daily high max | 18.9 C (66.0 F) | 0.6 C (1.1 F) | 48 years | 24 of 100 (Routine) |
| 27 November 2021 | Belle Fourche, US | daily high min | 4.4 C (39.9 F) | 1.1 C (2.0 F) | 72 years | 32 of 100 (Routine) |
| 27 October 2021 | Belle Fourche, US | daily rain | 16.0 mm (0.6 in) | 8.4 mm (0.33 in) | 98 years | 20 of 100 (Routine) |
| 14 October 2021 | Belle Fourche, US | daily snow depth | 5.1 cm (2.0 in) | 5.1 cm (2.0 in) | 102 years | 20 of 100 (Routine) |
| 13 October 2021 | Belle Fourche, US | daily rain | 43.2 mm (1.7 in) | 34.8 mm (1.4 in) | 70 years | 70 of 100 (Major) |
Climate Trend
85 complete years, 1909 to 2021| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1909 | 6.8 C | -1.32 C |
| 1912 | 6.9 C | -1.17 C |
| 1914 | 8.0 C | -0.10 C |
| 1915 | 6.4 C | -1.67 C |
| 1916 | 5.7 C | -2.45 C |
| 1917 | 6.0 C | -2.07 C |
| 1918 | 7.5 C | -0.58 C |
| 1919 | 7.0 C | -1.08 C |
| 1920 | 6.8 C | -1.30 C |
| 1921 | 8.6 C | +0.50 C |
| 1922 | 6.4 C | -1.76 C |
| 1924 | 6.1 C | -1.98 C |
| 1925 | 7.9 C | -0.24 C |
| 1926 | 8.0 C | -0.13 C |
| 1928 | 7.7 C | -0.43 C |
| 1929 | 6.0 C | -2.09 C |
| 1930 | 8.3 C | +0.19 C |
| 1931 | 10.0 C | +1.87 C |
| 1932 | 8.1 C | +0.01 C |
| 1933 | 9.1 C | +1.02 C |
| 1934 | 9.8 C | +1.73 C |
| 1935 | 8.3 C | +0.15 C |
| 1937 | 6.9 C | -1.20 C |
| 1938 | 8.7 C | +0.63 C |
| 1939 | 9.1 C | +0.96 C |
| 1940 | 8.1 C | -0.03 C |
| 1941 | 8.6 C | +0.48 C |
| 1942 | 7.9 C | -0.22 C |
| 1943 | 8.0 C | -0.10 C |
| 1944 | 7.0 C | -1.08 C |
| 1946 | 8.7 C | +0.60 C |
| 1947 | 8.0 C | -0.10 C |
| 1948 | 7.8 C | -0.33 C |
| 1949 | 7.2 C | -0.87 C |
| 1950 | 6.0 C | -2.10 C |
| 1951 | 6.2 C | -1.90 C |
| 1952 | 8.3 C | +0.17 C |
| 1953 | 9.1 C | +0.98 C |
| 1954 | 8.7 C | +0.58 C |
| 1955 | 7.3 C | -0.85 C |
| 1957 | 7.6 C | -0.53 C |
| 1958 | 8.1 C | +0.00 C |
| 1959 | 7.5 C | -0.62 C |
| 1960 | 8.0 C | -0.15 C |
| 1961 | 8.6 C | +0.46 C |
| 1962 | 8.0 C | -0.11 C |
| 1965 | 7.2 C | -0.91 C |
| 1966 | 7.2 C | -0.87 C |
| 1967 | 8.7 C | +0.58 C |
| 1968 | 8.2 C | +0.11 C |
| 1969 | 8.3 C | +0.20 C |
| 1970 | 8.2 C | +0.09 C |
| 1971 | 8.1 C | -0.01 C |
| 1972 | 8.0 C | -0.14 C |
| 1973 | 8.9 C | +0.83 C |
| 1974 | 9.5 C | +1.43 C |
| 1975 | 8.1 C | -0.06 C |
| 1976 | 9.9 C | +1.77 C |
| 1977 | 9.4 C | +1.30 C |
| 1978 | 7.3 C | -0.83 C |
| 1979 | 7.6 C | -0.55 C |
| 1980 | 8.6 C | +0.50 C |
| 1981 | 9.3 C | +1.22 C |
| 1982 | 7.2 C | -0.89 C |
| 1983 | 8.4 C | +0.29 C |
| 1984 | 8.1 C | -0.06 C |
| 1989 | 7.8 C | -0.28 C |
| 1990 | 8.9 C | +0.83 C |
| 1991 | 8.9 C | +0.79 C |
| 1992 | 8.4 C | +0.30 C |
| 1994 | 8.5 C | +0.42 C |
| 1996 | 7.0 C | -1.13 C |
| 1997 | 9.1 C | +1.01 C |
| 1999 | 10.2 C | +2.12 C |
| 2001 | 9.5 C | +1.35 C |
| 2010 | 8.0 C | -0.16 C |
| 2011 | 8.6 C | +0.50 C |
| 2012 | 11.4 C | +3.31 C |
| 2013 | 8.9 C | +0.78 C |
| 2014 | 8.7 C | +0.55 C |
| 2015 | 9.7 C | +1.59 C |
| 2016 | 9.9 C | +1.77 C |
| 2018 | 8.6 C | +0.47 C |
| 2019 | 6.1 C | -1.97 C |
| 2021 | 9.8 C | +1.65 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1909 to 2021. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 85 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1909 to 2021 | 85 | Rise |
| Mean daily maximum | 0.11 C (0.02 to 0.19) per decade | 0.19 F (0.04 to 0.34) per decade | 1909 to 2021 | 85 | Rise |
| Mean daily minimum | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.5) per decade | 1909 to 2021 | 85 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1908 to 2022| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 44.4 C (111.9 F) | 1931 | 39.4 C (102.9 F) | 115 |
| Coldest night (TNn) | -42.2 C (-44.0 F) | 1989 | -31.1 C (-24.0 F) | 115 |
| Wettest day (Rx1day) | 108.0 mm (4.3 in) | 1982 | 37.3 mm (1.5 in) | 115 |
| Wettest five days (Rx5day) | 186.2 mm (7.3 in) | 1976 | 53.1 mm (2.1 in) | 115 |
| Longest dry spell (CDD) | 72 days | 1952 | 35 days | 115 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1908 | 38.9 C (102.0 F) |
| 1909 | 38.9 C (102.0 F) |
| 1910 | 42.8 C (109.0 F) |
| 1911 | 39.4 C (102.9 F) |
| 1912 | 36.7 C (98.1 F) |
| 1913 | 37.8 C (100.0 F) |
| 1914 | 39.4 C (102.9 F) |
| 1915 | 38.3 C (100.9 F) |
| 1916 | 39.4 C (102.9 F) |
| 1917 | 41.7 C (107.1 F) |
| 1918 | 40.6 C (105.1 F) |
| 1919 | 41.7 C (107.1 F) |
| 1920 | 38.9 C (102.0 F) |
| 1921 | 40.6 C (105.1 F) |
| 1922 | 36.7 C (98.1 F) |
| 1923 | 38.3 C (100.9 F) |
| 1924 | 38.9 C (102.0 F) |
| 1925 | 39.4 C (102.9 F) |
| 1926 | 41.1 C (106.0 F) |
| 1927 | 35.0 C (95.0 F) |
| 1928 | 40.6 C (105.1 F) |
| 1929 | 40.6 C (105.1 F) |
| 1930 | 41.1 C (106.0 F) |
| 1931 | 44.4 C (111.9 F) |
| 1932 | 42.2 C (108.0 F) |
| 1933 | 41.7 C (107.1 F) |
| 1934 | 40.6 C (105.1 F) |
| 1935 | 42.2 C (108.0 F) |
| 1936 | 42.8 C (109.0 F) |
| 1937 | 39.4 C (102.9 F) |
| 1938 | 37.8 C (100.0 F) |
| 1939 | 40.0 C (104.0 F) |
| 1940 | 40.0 C (104.0 F) |
| 1941 | 38.3 C (100.9 F) |
| 1942 | 35.6 C (96.1 F) |
| 1943 | 36.7 C (98.1 F) |
| 1944 | 36.1 C (97.0 F) |
| 1945 | 36.7 C (98.1 F) |
| 1946 | 35.0 C (95.0 F) |
| 1947 | 38.9 C (102.0 F) |
| 1948 | 39.4 C (102.9 F) |
| 1949 | 40.0 C (104.0 F) |
| 1950 | 36.7 C (98.1 F) |
| 1951 | 38.9 C (102.0 F) |
| 1952 | 41.1 C (106.0 F) |
| 1953 | 37.2 C (99.0 F) |
| 1954 | 41.7 C (107.1 F) |
| 1955 | 38.3 C (100.9 F) |
| 1956 | 37.8 C (100.0 F) |
| 1957 | 41.7 C (107.1 F) |
| 1958 | 40.0 C (104.0 F) |
| 1959 | 40.0 C (104.0 F) |
| 1960 | 41.7 C (107.1 F) |
| 1961 | 40.6 C (105.1 F) |
| 1962 | 36.7 C (98.1 F) |
| 1963 | 37.8 C (100.0 F) |
| 1964 | 39.4 C (102.9 F) |
| 1965 | 38.3 C (100.9 F) |
| 1966 | 40.0 C (104.0 F) |
| 1967 | 37.8 C (100.0 F) |
| 1968 | 37.8 C (100.0 F) |
| 1969 | 42.2 C (108.0 F) |
| 1970 | 41.1 C (106.0 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 37.2 C (99.0 F) |
| 1973 | 42.8 C (109.0 F) |
| 1974 | 37.8 C (100.0 F) |
| 1975 | 42.2 C (108.0 F) |
| 1976 | 40.0 C (104.0 F) |
| 1977 | 40.6 C (105.1 F) |
| 1978 | 41.7 C (107.1 F) |
| 1979 | 40.6 C (105.1 F) |
| 1980 | 41.1 C (106.0 F) |
| 1981 | 43.3 C (109.9 F) |
| 1982 | 38.9 C (102.0 F) |
| 1983 | 41.7 C (107.1 F) |
| 1984 | 36.7 C (98.1 F) |
| 1985 | 37.2 C (99.0 F) |
| 1986 | 38.9 C (102.0 F) |
| 1987 | 38.9 C (102.0 F) |
| 1988 | 40.6 C (105.1 F) |
| 1989 | 40.6 C (105.1 F) |
| 1990 | 40.0 C (104.0 F) |
| 1991 | 38.3 C (100.9 F) |
| 1992 | 36.1 C (97.0 F) |
| 1993 | 33.3 C (91.9 F) |
| 1994 | 37.8 C (100.0 F) |
| 1995 | 38.9 C (102.0 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 | 41.1 C (106.0 F) |
| 2002 | 41.1 C (106.0 F) |
| 2003 | 41.1 C (106.0 F) |
| 2004 | 38.3 C (100.9 F) |
| 2005 | 42.2 C (108.0 F) |
| 2006 | 42.8 C (109.0 F) |
| 2007 | 41.1 C (106.0 F) |
| 2008 | 38.3 C (100.9 F) |
| 2009 | 35.6 C (96.1 F) |
| 2010 | 41.1 C (106.0 F) |
| 2011 | 39.4 C (102.9 F) |
| 2012 | 41.7 C (107.1 F) |
| 2013 | 38.9 C (102.0 F) |
| 2014 | 35.6 C (96.1 F) |
| 2015 | 37.8 C (100.0 F) |
| 2016 | 38.9 C (102.0 F) |
| 2017 | 38.9 C (102.0 F) |
| 2018 | 38.9 C (102.0 F) |
| 2019 | 34.4 C (93.9 F) |
| 2020 | 36.7 C (98.1 F) |
| 2021 | 41.7 C (107.1 F) |
| 2022 | 21.1 C (70.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1908 | -22.2 C (-8.0 F) |
| 1909 | -30.6 C (-23.1 F) |
| 1910 | -31.7 C (-25.1 F) |
| 1911 | -32.8 C (-27.0 F) |
| 1912 | -36.7 C (-34.1 F) |
| 1913 | -33.9 C (-29.0 F) |
| 1914 | -34.4 C (-29.9 F) |
| 1915 | -32.8 C (-27.0 F) |
| 1916 | -39.4 C (-38.9 F) |
| 1917 | -35.6 C (-32.1 F) |
| 1918 | -37.8 C (-36.0 F) |
| 1919 | -33.9 C (-29.0 F) |
| 1920 | -32.2 C (-26.0 F) |
| 1921 | -25.6 C (-14.1 F) |
| 1922 | -33.9 C (-29.0 F) |
| 1923 | -31.1 C (-24.0 F) |
| 1924 | -38.3 C (-36.9 F) |
| 1925 | -35.6 C (-32.1 F) |
| 1926 | -30.6 C (-23.1 F) |
| 1927 | -38.9 C (-38.0 F) |
| 1928 | -37.2 C (-35.0 F) |
| 1929 | -40.6 C (-41.1 F) |
| 1930 | -32.2 C (-26.0 F) |
| 1931 | -22.8 C (-9.0 F) |
| 1932 | -32.8 C (-27.0 F) |
| 1933 | -33.3 C (-27.9 F) |
| 1934 | -32.2 C (-26.0 F) |
| 1935 | -30.0 C (-22.0 F) |
| 1936 | -38.9 C (-38.0 F) |
| 1937 | -30.0 C (-22.0 F) |
| 1938 | -31.7 C (-25.1 F) |
| 1939 | -31.1 C (-24.0 F) |
| 1940 | -31.1 C (-24.0 F) |
| 1941 | -25.0 C (-13.0 F) |
| 1942 | -30.6 C (-23.1 F) |
| 1943 | -35.6 C (-32.1 F) |
| 1944 | -31.7 C (-25.1 F) |
| 1945 | -31.1 C (-24.0 F) |
| 1946 | -30.0 C (-22.0 F) |
| 1947 | -30.0 C (-22.0 F) |
| 1948 | -30.6 C (-23.1 F) |
| 1949 | -37.2 C (-35.0 F) |
| 1950 | -37.2 C (-35.0 F) |
| 1951 | -32.2 C (-26.0 F) |
| 1952 | -32.8 C (-27.0 F) |
| 1953 | -25.6 C (-14.1 F) |
| 1954 | -31.7 C (-25.1 F) |
| 1955 | -30.6 C (-23.1 F) |
| 1956 | -30.0 C (-22.0 F) |
| 1957 | -32.2 C (-26.0 F) |
| 1958 | -28.9 C (-20.0 F) |
| 1959 | -32.2 C (-26.0 F) |
| 1960 | -34.4 C (-29.9 F) |
| 1961 | -27.2 C (-17.0 F) |
| 1962 | -32.8 C (-27.0 F) |
| 1963 | -31.1 C (-24.0 F) |
| 1964 | -30.6 C (-23.1 F) |
| 1965 | -31.7 C (-25.1 F) |
| 1966 | -33.9 C (-29.0 F) |
| 1967 | -31.1 C (-24.0 F) |
| 1968 | -32.2 C (-26.0 F) |
| 1969 | -30.6 C (-23.1 F) |
| 1970 | -28.9 C (-20.0 F) |
| 1971 | -31.1 C (-24.0 F) |
| 1972 | -35.0 C (-31.0 F) |
| 1973 | -30.0 C (-22.0 F) |
| 1974 | -32.2 C (-26.0 F) |
| 1975 | -30.0 C (-22.0 F) |
| 1976 | -31.1 C (-24.0 F) |
| 1977 | -31.7 C (-25.1 F) |
| 1978 | -31.7 C (-25.1 F) |
| 1979 | -35.0 C (-31.0 F) |
| 1980 | -30.6 C (-23.1 F) |
| 1981 | -27.8 C (-18.0 F) |
| 1982 | -32.8 C (-27.0 F) |
| 1983 | -35.6 C (-32.1 F) |
| 1984 | -31.1 C (-24.0 F) |
| 1985 | -28.9 C (-20.0 F) |
| 1986 | -26.7 C (-16.1 F) |
| 1987 | -20.6 C (-5.1 F) |
| 1988 | -31.1 C (-24.0 F) |
| 1989 | -42.2 C (-44.0 F) |
| 1990 | -38.9 C (-38.0 F) |
| 1991 | -27.8 C (-18.0 F) |
| 1992 | -25.0 C (-13.0 F) |
| 1993 | -31.1 C (-24.0 F) |
| 1994 | -38.9 C (-38.0 F) |
| 1995 | -27.2 C (-17.0 F) |
| 1996 | -32.8 C (-27.0 F) |
| 1997 | -28.3 C (-18.9 F) |
| 1998 | -33.9 C (-29.0 F) |
| 1999 | -21.7 C (-7.1 F) |
| 2000 | -17.2 C (1.0 F) |
| 2001 | -25.0 C (-13.0 F) |
| 2002 | -26.1 C (-15.0 F) |
| 2003 | -23.3 C (-9.9 F) |
| 2004 | -25.6 C (-14.1 F) |
| 2005 | -28.3 C (-18.9 F) |
| 2006 | -11.1 C (12.0 F) |
| 2007 | -22.8 C (-9.0 F) |
| 2008 | -27.2 C (-17.0 F) |
| 2009 | -26.7 C (-16.1 F) |
| 2010 | -32.2 C (-26.0 F) |
| 2011 | -30.0 C (-22.0 F) |
| 2012 | -25.6 C (-14.1 F) |
| 2013 | -30.0 C (-22.0 F) |
| 2014 | -30.6 C (-23.1 F) |
| 2015 | -27.2 C (-17.0 F) |
| 2016 | -31.1 C (-24.0 F) |
| 2017 | -30.0 C (-22.0 F) |
| 2018 | -31.7 C (-25.1 F) |
| 2019 | -29.4 C (-20.9 F) |
| 2020 | -25.0 C (-13.0 F) |
| 2021 | -33.3 C (-27.9 F) |
| 2022 | -26.7 C (-16.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1908 | 16.0 mm (0.6 in) |
| 1909 | 40.9 mm (1.6 in) |
| 1910 | 21.8 mm (0.9 in) |
| 1911 | 23.6 mm (0.9 in) |
| 1912 | 33.0 mm (1.3 in) |
| 1913 | 66.0 mm (2.6 in) |
| 1914 | 39.4 mm (1.6 in) |
| 1915 | 39.6 mm (1.6 in) |
| 1916 | 22.4 mm (0.9 in) |
| 1917 | 14.0 mm (0.6 in) |
| 1918 | 31.2 mm (1.2 in) |
| 1919 | 28.4 mm (1.1 in) |
| 1920 | 40.1 mm (1.6 in) |
| 1921 | 25.4 mm (1.0 in) |
| 1922 | 38.1 mm (1.5 in) |
| 1923 | 94.0 mm (3.7 in) |
| 1924 | 31.8 mm (1.3 in) |
| 1925 | 33.0 mm (1.3 in) |
| 1926 | 30.5 mm (1.2 in) |
| 1927 | 34.3 mm (1.4 in) |
| 1928 | 35.6 mm (1.4 in) |
| 1929 | 65.0 mm (2.6 in) |
| 1930 | 62.7 mm (2.5 in) |
| 1931 | 17.5 mm (0.7 in) |
| 1932 | 53.3 mm (2.1 in) |
| 1933 | 62.0 mm (2.4 in) |
| 1934 | 27.9 mm (1.1 in) |
| 1935 | 20.3 mm (0.8 in) |
| 1936 | 30.0 mm (1.2 in) |
| 1937 | 39.4 mm (1.6 in) |
| 1938 | 24.1 mm (0.9 in) |
| 1939 | 16.0 mm (0.6 in) |
| 1940 | 50.8 mm (2.0 in) |
| 1941 | 63.5 mm (2.5 in) |
| 1942 | 28.7 mm (1.1 in) |
| 1943 | 36.3 mm (1.4 in) |
| 1944 | 51.6 mm (2.0 in) |
| 1945 | 27.2 mm (1.1 in) |
| 1946 | 52.3 mm (2.1 in) |
| 1947 | 60.7 mm (2.4 in) |
| 1948 | 35.8 mm (1.4 in) |
| 1949 | 18.3 mm (0.7 in) |
| 1950 | 22.9 mm (0.9 in) |
| 1951 | 25.4 mm (1.0 in) |
| 1952 | 38.9 mm (1.5 in) |
| 1953 | 51.8 mm (2.0 in) |
| 1954 | 25.4 mm (1.0 in) |
| 1955 | 41.4 mm (1.6 in) |
| 1956 | 27.9 mm (1.1 in) |
| 1957 | 30.7 mm (1.2 in) |
| 1958 | 18.8 mm (0.7 in) |
| 1959 | 14.2 mm (0.6 in) |
| 1960 | 39.9 mm (1.6 in) |
| 1961 | 28.4 mm (1.1 in) |
| 1962 | 53.3 mm (2.1 in) |
| 1963 | 22.9 mm (0.9 in) |
| 1964 | 45.5 mm (1.8 in) |
| 1965 | 49.0 mm (1.9 in) |
| 1966 | 42.4 mm (1.7 in) |
| 1967 | 28.4 mm (1.1 in) |
| 1968 | 32.5 mm (1.3 in) |
| 1969 | 23.6 mm (0.9 in) |
| 1970 | 31.5 mm (1.2 in) |
| 1971 | 60.2 mm (2.4 in) |
| 1972 | 42.9 mm (1.7 in) |
| 1973 | 44.2 mm (1.7 in) |
| 1974 | 43.9 mm (1.7 in) |
| 1975 | 32.5 mm (1.3 in) |
| 1976 | 86.6 mm (3.4 in) |
| 1977 | 33.5 mm (1.3 in) |
| 1978 | 35.1 mm (1.4 in) |
| 1979 | 39.1 mm (1.5 in) |
| 1980 | 41.9 mm (1.6 in) |
| 1981 | 55.1 mm (2.2 in) |
| 1982 | 108.0 mm (4.3 in) |
| 1983 | 49.8 mm (2.0 in) |
| 1984 | 43.9 mm (1.7 in) |
| 1985 | 19.8 mm (0.8 in) |
| 1986 | 47.5 mm (1.9 in) |
| 1987 | 37.3 mm (1.5 in) |
| 1988 | 38.1 mm (1.5 in) |
| 1989 | 46.0 mm (1.8 in) |
| 1990 | 38.1 mm (1.5 in) |
| 1991 | 22.6 mm (0.9 in) |
| 1992 | 22.9 mm (0.9 in) |
| 1993 | 58.4 mm (2.3 in) |
| 1994 | 59.2 mm (2.3 in) |
| 1995 | 99.1 mm (3.9 in) |
| 1996 | 63.2 mm (2.5 in) |
| 1997 | 49.0 mm (1.9 in) |
| 1998 | 69.9 mm (2.8 in) |
| 1999 | 38.4 mm (1.5 in) |
| 2000 | 43.2 mm (1.7 in) |
| 2001 | 58.4 mm (2.3 in) |
| 2002 | 31.0 mm (1.2 in) |
| 2003 | 63.5 mm (2.5 in) |
| 2004 | 21.6 mm (0.9 in) |
| 2005 | 12.7 mm (0.5 in) |
| 2006 | 26.7 mm (1.1 in) |
| 2007 | 21.3 mm (0.8 in) |
| 2008 | 47.2 mm (1.9 in) |
| 2009 | 25.4 mm (1.0 in) |
| 2010 | 36.1 mm (1.4 in) |
| 2011 | 27.9 mm (1.1 in) |
| 2012 | 31.0 mm (1.2 in) |
| 2013 | 62.0 mm (2.4 in) |
| 2014 | 37.1 mm (1.5 in) |
| 2015 | 37.3 mm (1.5 in) |
| 2016 | 20.3 mm (0.8 in) |
| 2017 | 35.8 mm (1.4 in) |
| 2018 | 50.8 mm (2.0 in) |
| 2019 | 42.7 mm (1.7 in) |
| 2020 | 34.3 mm (1.4 in) |
| 2021 | 43.2 mm (1.7 in) |
| 2022 | 50.0 mm (2.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1908 | 25.9 mm (1.0 in) |
| 1909 | 62.4 mm (2.5 in) |
| 1910 | 43.9 mm (1.7 in) |
| 1911 | 28.2 mm (1.1 in) |
| 1912 | 44.5 mm (1.8 in) |
| 1913 | 69.3 mm (2.7 in) |
| 1914 | 44.0 mm (1.7 in) |
| 1915 | 64.7 mm (2.5 in) |
| 1916 | 53.1 mm (2.1 in) |
| 1917 | 26.2 mm (1.0 in) |
| 1918 | 46.2 mm (1.8 in) |
| 1919 | 49.2 mm (1.9 in) |
| 1920 | 52.2 mm (2.1 in) |
| 1921 | 29.4 mm (1.2 in) |
| 1922 | 73.6 mm (2.9 in) |
| 1923 | 112.5 mm (4.4 in) |
| 1924 | 38.9 mm (1.5 in) |
| 1925 | 45.7 mm (1.8 in) |
| 1926 | 56.2 mm (2.2 in) |
| 1927 | 75.2 mm (3.0 in) |
| 1928 | 45.8 mm (1.8 in) |
| 1929 | 82.8 mm (3.3 in) |
| 1930 | 62.7 mm (2.5 in) |
| 1931 | 18.0 mm (0.7 in) |
| 1932 | 86.8 mm (3.4 in) |
| 1933 | 70.1 mm (2.8 in) |
| 1934 | 41.9 mm (1.6 in) |
| 1935 | 49.1 mm (1.9 in) |
| 1936 | 37.7 mm (1.5 in) |
| 1937 | 73.9 mm (2.9 in) |
| 1938 | 31.5 mm (1.2 in) |
| 1939 | 30.0 mm (1.2 in) |
| 1940 | 65.0 mm (2.6 in) |
| 1941 | 130.6 mm (5.1 in) |
| 1942 | 62.7 mm (2.5 in) |
| 1943 | 54.6 mm (2.1 in) |
| 1944 | 79.3 mm (3.1 in) |
| 1945 | 36.4 mm (1.4 in) |
| 1946 | 59.7 mm (2.4 in) |
| 1947 | 115.0 mm (4.5 in) |
| 1948 | 47.2 mm (1.9 in) |
| 1949 | 27.7 mm (1.1 in) |
| 1950 | 33.3 mm (1.3 in) |
| 1951 | 46.7 mm (1.8 in) |
| 1952 | 76.7 mm (3.0 in) |
| 1953 | 74.2 mm (2.9 in) |
| 1954 | 34.8 mm (1.4 in) |
| 1955 | 46.8 mm (1.8 in) |
| 1956 | 29.2 mm (1.1 in) |
| 1957 | 51.1 mm (2.0 in) |
| 1958 | 41.3 mm (1.6 in) |
| 1959 | 35.8 mm (1.4 in) |
| 1960 | 45.2 mm (1.8 in) |
| 1961 | 34.5 mm (1.4 in) |
| 1962 | 77.8 mm (3.1 in) |
| 1963 | 51.1 mm (2.0 in) |
| 1964 | 78.5 mm (3.1 in) |
| 1965 | 67.8 mm (2.7 in) |
| 1966 | 47.2 mm (1.9 in) |
| 1967 | 51.5 mm (2.0 in) |
| 1968 | 51.8 mm (2.0 in) |
| 1969 | 49.3 mm (1.9 in) |
| 1970 | 84.9 mm (3.3 in) |
| 1971 | 94.7 mm (3.7 in) |
| 1972 | 61.9 mm (2.4 in) |
| 1973 | 62.8 mm (2.5 in) |
| 1974 | 61.5 mm (2.4 in) |
| 1975 | 41.6 mm (1.6 in) |
| 1976 | 186.2 mm (7.3 in) |
| 1977 | 53.5 mm (2.1 in) |
| 1978 | 62.0 mm (2.4 in) |
| 1979 | 52.1 mm (2.1 in) |
| 1980 | 49.2 mm (1.9 in) |
| 1981 | 70.3 mm (2.8 in) |
| 1982 | 140.8 mm (5.5 in) |
| 1983 | 54.9 mm (2.2 in) |
| 1984 | 88.6 mm (3.5 in) |
| 1985 | 30.4 mm (1.2 in) |
| 1986 | 71.4 mm (2.8 in) |
| 1987 | 71.1 mm (2.8 in) |
| 1988 | 44.4 mm (1.7 in) |
| 1989 | 75.8 mm (3.0 in) |
| 1990 | 54.4 mm (2.1 in) |
| 1991 | 51.3 mm (2.0 in) |
| 1992 | 40.2 mm (1.6 in) |
| 1993 | 66.0 mm (2.6 in) |
| 1994 | 100.8 mm (4.0 in) |
| 1995 | 129.3 mm (5.1 in) |
| 1996 | 97.0 mm (3.8 in) |
| 1997 | 96.0 mm (3.8 in) |
| 1998 | 80.5 mm (3.2 in) |
| 1999 | 79.3 mm (3.1 in) |
| 2000 | 70.4 mm (2.8 in) |
| 2001 | 94.2 mm (3.7 in) |
| 2002 | 39.1 mm (1.5 in) |
| 2003 | 63.5 mm (2.5 in) |
| 2004 | 37.8 mm (1.5 in) |
| 2005 | 16.1 mm (0.6 in) |
| 2006 | 46.2 mm (1.8 in) |
| 2007 | 32.2 mm (1.3 in) |
| 2008 | 70.9 mm (2.8 in) |
| 2009 | 32.3 mm (1.3 in) |
| 2010 | 59.2 mm (2.3 in) |
| 2011 | 81.3 mm (3.2 in) |
| 2012 | 32.8 mm (1.3 in) |
| 2013 | 122.7 mm (4.8 in) |
| 2014 | 48.3 mm (1.9 in) |
| 2015 | 48.7 mm (1.9 in) |
| 2016 | 34.3 mm (1.4 in) |
| 2017 | 35.8 mm (1.4 in) |
| 2018 | 94.2 mm (3.7 in) |
| 2019 | 61.3 mm (2.4 in) |
| 2020 | 52.4 mm (2.1 in) |
| 2021 | 63.0 mm (2.5 in) |
| 2022 | 50.0 mm (2.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1908 | 35 days |
| 1909 | 36 days |
| 1910 | 31 days |
| 1911 | 38 days |
| 1912 | 62 days |
| 1913 | 29 days |
| 1914 | 35 days |
| 1915 | 39 days |
| 1916 | 41 days |
| 1917 | 57 days |
| 1918 | 38 days |
| 1919 | 35 days |
| 1920 | 26 days |
| 1921 | 53 days |
| 1922 | 70 days |
| 1923 | 30 days |
| 1924 | 33 days |
| 1925 | 22 days |
| 1926 | 54 days |
| 1927 | 39 days |
| 1928 | 53 days |
| 1929 | 24 days |
| 1930 | 44 days |
| 1931 | 36 days |
| 1932 | 31 days |
| 1933 | 53 days |
| 1934 | 56 days |
| 1935 | 47 days |
| 1936 | 55 days |
| 1937 | 43 days |
| 1938 | 25 days |
| 1939 | 45 days |
| 1940 | 57 days |
| 1941 | 46 days |
| 1942 | 37 days |
| 1943 | 56 days |
| 1944 | 29 days |
| 1945 | 39 days |
| 1946 | 37 days |
| 1947 | 52 days |
| 1948 | 38 days |
| 1949 | 28 days |
| 1950 | 47 days |
| 1951 | 36 days |
| 1952 | 72 days |
| 1953 | 33 days |
| 1954 | 49 days |
| 1955 | 22 days |
| 1956 | 48 days |
| 1957 | 46 days |
| 1958 | 29 days |
| 1959 | 39 days |
| 1960 | 72 days |
| 1961 | 30 days |
| 1962 | 22 days |
| 1963 | 27 days |
| 1964 | 29 days |
| 1965 | 42 days |
| 1966 | 24 days |
| 1967 | 35 days |
| 1968 | 23 days |
| 1969 | 37 days |
| 1970 | 25 days |
| 1971 | 25 days |
| 1972 | 20 days |
| 1973 | 19 days |
| 1974 | 23 days |
| 1975 | 30 days |
| 1976 | 38 days |
| 1977 | 35 days |
| 1978 | 23 days |
| 1979 | 47 days |
| 1980 | 28 days |
| 1981 | 42 days |
| 1982 | 40 days |
| 1983 | 26 days |
| 1984 | 40 days |
| 1985 | 50 days |
| 1986 | 24 days |
| 1987 | 27 days |
| 1988 | 34 days |
| 1989 | 30 days |
| 1990 | 38 days |
| 1991 | 28 days |
| 1992 | 26 days |
| 1993 | 27 days |
| 1994 | 43 days |
| 1995 | 32 days |
| 1996 | 31 days |
| 1997 | 34 days |
| 1998 | 49 days |
| 1999 | 45 days |
| 2000 | 28 days |
| 2001 | 36 days |
| 2002 | 43 days |
| 2003 | 22 days |
| 2004 | 23 days |
| 2005 | 37 days |
| 2006 | 27 days |
| 2007 | 39 days |
| 2008 | 20 days |
| 2009 | 37 days |
| 2010 | 28 days |
| 2011 | 20 days |
| 2012 | 52 days |
| 2013 | 54 days |
| 2014 | 28 days |
| 2015 | 24 days |
| 2016 | 23 days |
| 2017 | 29 days |
| 2018 | 26 days |
| 2019 | 20 days |
| 2020 | 58 days |
| 2021 | 33 days |
| 2022 | 20 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
85 years with a frostAcross 85 years with a frost, the median last spring frost at Belle Fourche falls on 13 May and the median first autumn frost on 21 September, which leaves a median of 132 days between them.
In 1974 to 2021 the median growing season was 137 days. That is 12 days more than in 1909 to 1944.
Fitted over all years, the growing season changes by +1.9 days per decade at this station.
| Measure | Median, all years | Earliest period (1909 to 1944) | Recent period (1974 to 2021) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 13 May | 15 May | 11 May | 4 days earlier | -1.1 days per decade |
| First autumn frost | 21 September | 20 September | 23 September | 3 days later | +0.8 days per decade |
| Growing days | 132 days | 125 days | 137 days | 12 days more | +1.9 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, 1909 to 2021A day with at least 37.9 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 95.7 mm (3.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 37.9 mm (1.5 in) | |
| 5 years | 52.9 mm (2.1 in) | |
| 10 years | 63.0 mm (2.5 in) | |
| 25 years | 76.0 mm (3.0 in) | |
| 50 years | 85.8 mm (3.4 in) | |
| 100 years | 95.7 mm (3.8 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 1909 to 2021.
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: 108.0 mm (4.3 in) in 1982; 99.1 mm (3.9 in) in 1995; 86.6 mm (3.4 in) in 1976.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Belle Fourche, at 1967 and 1979. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1967 ran 0.8 C (1.5 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1979 ran 0.5 C (1.0 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1967 | +0.8 | +1.5 | likely | 5 |
| 1979 | -0.5 | -1.0 | possible | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
1994 to 2021 against 1961 to 1990Over 1994 to 2021, Belle Fourche had a mean temperature of 8.9 C (48.1 F) and 461.2 mm (18.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Oral (United States, 148 km away), Oelrichs (United States, 172 km away) and Longvalley (United States, 231 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Oral | United States | 148 km (92 mi) | 8.8 C (47.8 F) | 390.2 mm (15.4 in) | 0.89 |
| Oelrichs | United States | 172 km (107 mi) | 8.9 C (48.1 F) | 428.1 mm (16.9 in) | 0.90 |
| Longvalley | United States | 231 km (144 mi) | 9.1 C (48.5 F) | 452.1 mm (17.8 in) | 0.95 |
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.
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Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).