Cottonwood 2 E Weather Records (USC00391972)
Record envelope, standing records and threshold days for Cottonwood 2 E (USC00391972), South Dakota, United States, with 118 years of record.
Key Facts for Cottonwood 2 E
- Cottonwood 2 E (USC00391972) is a weather station in South Dakota, United States at 43.96 latitude and -101.86 longitude, 723 m (2,373 ft) above sea level.
- The station reports from 1909 to 2026, 118 years of record.
- 1,464 records set at Cottonwood 2 E still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Cottonwood 2 E tied a daily record high maximum temperature of 43.3 C (109.9 F) on 3 August 2026.
About the Station
- Location: South Dakota, United States, 43.96 latitude, -101.86 longitude.
- Elevation: 723 m (2,373 ft).
- Period of record: 1909 to 2026, 118 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 | 26.7 C (80.1 F) | -41.1 C (-42.0 F) | 16.1 C (61.0 F) | -26.7 C (-16.1 F) |
| Feb | 24.4 C (75.9 F) | -41.7 C (-43.1 F) | 20.6 C (69.1 F) | -20.0 C (-4.0 F) |
| Mar | 31.1 C (88.0 F) | -36.1 C (-33.0 F) | 28.3 C (82.9 F) | -23.9 C (-11.0 F) |
| Apr | 35.0 C (95.0 F) | -24.4 C (-11.9 F) | 33.9 C (93.0 F) | -7.8 C (18.0 F) |
| May | 40.6 C (105.1 F) | -10.6 C (12.9 F) | 33.9 C (93.0 F) | -5.6 C (21.9 F) |
| Jun | 45.6 C (114.1 F) | -1.1 C (30.0 F) | 35.6 C (96.1 F) | 4.4 C (39.9 F) |
| Jul | 47.2 C (117.0 F) | 1.1 C (34.0 F) | 45.6 C (114.1 F) | 12.8 C (55.0 F) |
| Aug | 45.0 C (113.0 F) | -2.8 C (27.0 F) | 43.3 C (109.9 F) | 7.8 C (46.0 F) |
| Sep | 42.2 C (108.0 F) | -12.2 C (10.0 F) | n/a | n/a |
| Oct | 36.7 C (98.1 F) | -25.6 C (-14.1 F) | n/a | n/a |
| Nov | 29.4 C (84.9 F) | -33.9 C (-29.0 F) | n/a | n/a |
| Dec | 25.0 C (77.0 F) | -40.6 C (-41.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1909 | 4 |
| 1910 | 29 |
| 1911 | 29 |
| 1912 | 6 |
| 1913 | 27 |
| 1914 | 15 |
| 1915 | 12 |
| 1916 | 20 |
| 1917 | 17 |
| 1918 | 15 |
| 1919 | 25 |
| 1920 | 8 |
| 1921 | 11 |
| 1922 | 4 |
| 1923 | 13 |
| 1924 | 15 |
| 1925 | 10 |
| 1926 | 6 |
| 1927 | 12 |
| 1928 | 16 |
| 1929 | 15 |
| 1930 | 11 |
| 1931 | 25 |
| 1932 | 18 |
| 1933 | 8 |
| 1934 | 27 |
| 1935 | 12 |
| 1936 | 58 |
| 1937 | 13 |
| 1938 | 11 |
| 1939 | 23 |
| 1940 | 14 |
| 1941 | 11 |
| 1942 | 8 |
| 1943 | 21 |
| 1944 | 11 |
| 1945 | 13 |
| 1946 | 16 |
| 1947 | 18 |
| 1948 | 14 |
| 1949 | 11 |
| 1950 | 15 |
| 1951 | 14 |
| 1952 | 12 |
| 1953 | 10 |
| 1954 | 9 |
| 1955 | 7 |
| 1956 | 8 |
| 1957 | 7 |
| 1958 | 12 |
| 1959 | 18 |
| 1960 | 10 |
| 1961 | 3 |
| 1962 | 11 |
| 1963 | 10 |
| 1964 | 7 |
| 1965 | 16 |
| 1966 | 6 |
| 1967 | 11 |
| 1968 | 5 |
| 1969 | 8 |
| 1970 | 6 |
| 1971 | 9 |
| 1972 | 14 |
| 1973 | 8 |
| 1974 | 13 |
| 1975 | 6 |
| 1976 | 18 |
| 1977 | 7 |
| 1978 | 3 |
| 1979 | 8 |
| 1980 | 8 |
| 1981 | 9 |
| 1982 | 4 |
| 1983 | 10 |
| 1984 | 6 |
| 1985 | 24 |
| 1986 | 6 |
| 1987 | 11 |
| 1988 | 17 |
| 1989 | 19 |
| 1990 | 10 |
| 1991 | 19 |
| 1992 | 18 |
| 1993 | 14 |
| 1994 | 10 |
| 1995 | 14 |
| 1996 | 14 |
| 1997 | 11 |
| 1998 | 10 |
| 1999 | 18 |
| 2000 | 18 |
| 2001 | 9 |
| 2002 | 12 |
| 2003 | 12 |
| 2004 | 10 |
| 2005 | 16 |
| 2006 | 15 |
| 2007 | 8 |
| 2008 | 3 |
| 2009 | 6 |
| 2010 | 8 |
| 2011 | 6 |
| 2012 | 17 |
| 2013 | 7 |
| 2014 | 13 |
| 2015 | 10 |
| 2016 | 8 |
| 2017 | 12 |
| 2018 | 12 |
| 2019 | 8 |
| 2020 | 15 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 9 |
| 2024 | 6 |
| 2025 | 14 |
| 2026 | 7 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1989-02-03 | Record low maximum temperature | Record low maximum temperature -27.8 C (-18.0 F) |
| 1994-02-09 | Record low minimum temperature | Record low minimum temperature -41.7 C (-43.1 F) |
| 2006-07-16 | Record high maximum temperature | Record high maximum temperature 47.2 C (117.0 F) |
Wettest Day of Each Month
Aug: 131.6 mm (5.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 21.8 mm (0.9 in) | 4 January 1997 |
| Feb | 30.0 mm (1.2 in) | 18 February 1991 |
| Mar | 45.2 mm (1.8 in) | 14 March 1973 |
| Apr | 55.9 mm (2.2 in) | 20 April 1971 |
| May | 101.6 mm (4.0 in) | 26 May 1915 |
| Jun | 77.2 mm (3.0 in) | 17 June 1948 |
| Jul | 62.5 mm (2.5 in) | 16 July 1923 |
| Aug | 131.6 mm (5.2 in) | 16 August 1930 |
| Sep | 83.8 mm (3.3 in) | 20 September 1955 |
| Oct | 77.0 mm (3.0 in) | 5 October 2013 |
| Nov | 34.5 mm (1.4 in) | 6 November 2008 |
| Dec | 20.3 mm (0.8 in) | 31 December 1924 |
Period of Record Coverage
1909 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1909 | 198 | 54% | No |
| 1910 | 361 | 99% | Yes |
| 1911 | 363 | 99% | Yes |
| 1912 | 303 | 83% | No |
| 1913 | 363 | 99% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 361 | 99% | Yes |
| 1916 | 357 | 98% | Yes |
| 1917 | 360 | 99% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 364 | 100% | Yes |
| 1920 | 359 | 98% | Yes |
| 1921 | 361 | 99% | Yes |
| 1922 | 361 | 99% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 358 | 98% | Yes |
| 1926 | 364 | 100% | Yes |
| 1927 | 362 | 99% | Yes |
| 1928 | 353 | 96% | Yes |
| 1929 | 362 | 99% | Yes |
| 1930 | 364 | 100% | Yes |
| 1931 | 363 | 99% | Yes |
| 1932 | 364 | 99% | Yes |
| 1933 | 363 | 99% | Yes |
| 1934 | 363 | 99% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 362 | 99% | Yes |
| 1939 | 362 | 99% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 360 | 99% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 365 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 362 | 99% | Yes |
| 1950 | 362 | 99% | Yes |
| 1951 | 364 | 100% | Yes |
| 1952 | 363 | 99% | Yes |
| 1953 | 361 | 99% | Yes |
| 1954 | 363 | 99% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 362 | 99% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 334 | 91% | Yes |
| 1961 | 147 | 40% | No |
| 1962 | 345 | 95% | Yes |
| 1963 | 312 | 85% | No |
| 1964 | 365 | 100% | Yes |
| 1965 | 360 | 99% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 362 | 99% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 362 | 99% | Yes |
| 1970 | 360 | 99% | Yes |
| 1971 | 361 | 99% | Yes |
| 1972 | 344 | 94% | Yes |
| 1973 | 328 | 90% | No |
| 1974 | 334 | 92% | Yes |
| 1975 | 212 | 58% | No |
| 1976 | 346 | 95% | Yes |
| 1977 | 357 | 98% | Yes |
| 1978 | 305 | 84% | No |
| 1979 | 365 | 100% | Yes |
| 1980 | 363 | 99% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 362 | 99% | Yes |
| 1986 | 363 | 99% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 364 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 335 | 92% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 364 | 100% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 355 | 97% | Yes |
| 2004 | 364 | 99% | Yes |
| 2005 | 364 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 357 | 98% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 344 | 94% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 362 | 99% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 337 | 92% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 365 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 243 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 3 August 2026 | Cottonwood 2 E, US | daily high max (Tie) | 43.3 C (109.9 F) | tie | 92 years | 9 of 100 (Routine) |
| 26 July 2026 | Cottonwood 2 E, US | daily high max | 45.6 C (114.1 F) | 2.3 C (4.1 F) | 19 years | 19 of 100 (Routine) |
| 7 May 2026 | Cottonwood 2 E, US | daily low min | -5.6 C (21.9 F) | 0.6 C (1.1 F) | 49 years | 25 of 100 (Routine) |
| 23 April 2026 | Cottonwood 2 E, US | daily high max (Tie) | 33.9 C (93.0 F) | tie | 36 years | 5 of 100 (Routine) |
| 20 March 2026 | Cottonwood 2 E, US | daily high max | 28.3 C (82.9 F) | 2.7 C (4.9 F) | 115 years | 43 of 100 (Notable) |
| 17 March 2026 | Cottonwood 2 E, US | daily low min | -23.3 C (-9.9 F) | 1.1 C (2.0 F) | 37 years | 22 of 100 (Routine) |
| 16 March 2026 | Cottonwood 2 E, US | daily low min | -23.9 C (-11.0 F) | 1.7 C (3.1 F) | 37 years | 23 of 100 (Routine) |
| 9 March 2026 | Cottonwood 2 E, US | daily high max | 25.0 C (77.0 F) | 1.7 C (3.1 F) | 19 years | 16 of 100 (Routine) |
| 9 February 2026 | Cottonwood 2 E, US | daily high max (Tie) | 19.4 C (66.9 F) | tie | 26 years | 4 of 100 (Routine) |
| 6 February 2026 | Cottonwood 2 E, US | daily high max | 20.6 C (69.1 F) | 2.8 C (5.0 F) | 92 years | 40 of 100 (Notable) |
| 14 January 2026 | Cottonwood 2 E, US | daily high min (Tie) | 2.2 C (36.0 F) | tie | 80 years | 8 of 100 (Routine) |
| 5 January 2026 | Cottonwood 2 E, US | daily high max (Tie) | 15.6 C (60.1 F) | tie | 39 years | 5 of 100 (Routine) |
| 28 December 2025 | Cottonwood 2 E, US | daily high max (Tie) | 13.9 C (57.0 F) | tie | 26 years | 4 of 100 (Routine) |
| 26 December 2025 | Cottonwood 2 E, US | daily high max | 18.3 C (64.9 F) | 2.2 C (4.0 F) | 46 years | 25 of 100 (Routine) |
| 29 November 2025 | Cottonwood 2 E, US | daily snowfall (Tie) | 5.1 cm (2.0 in) | tie | 40 years | 5 of 100 (Routine) |
| 18 November 2025 | Cottonwood 2 E, US | daily rain | 8.6 mm (0.34 in) | 1.0 mm (0.04 in) | 31 years | 20 of 100 (Routine) |
| 15 November 2025 | Cottonwood 2 E, US | daily high min | 3.3 C (37.9 F) | 0.5 C (0.9 F) | 38 years | 21 of 100 (Routine) |
| 4 October 2025 | Cottonwood 2 E, US | daily high max | 35.0 C (95.0 F) | 0.6 C (1.1 F) | 14 years | 14 of 100 (Routine) |
| 29 September 2025 | Cottonwood 2 E, US | daily high min | 12.2 C (54.0 F) | 0.5 C (0.9 F) | 84 years | 35 of 100 (Notable) |
| 15 September 2025 | Cottonwood 2 E, US | daily rain | 21.8 mm (0.9 in) | 8.8 mm (0.35 in) | 0 years | 19 of 100 (Routine) |
Climate Trend
100 complete years, 1911 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1911 | 9.3 C | +1.05 C |
| 1913 | 8.7 C | +0.38 C |
| 1915 | 6.6 C | -1.64 C |
| 1916 | 6.4 C | -1.83 C |
| 1917 | 6.6 C | -1.65 C |
| 1918 | 7.9 C | -0.34 C |
| 1919 | 7.3 C | -0.97 C |
| 1920 | 7.5 C | -0.78 C |
| 1921 | 9.4 C | +1.15 C |
| 1922 | 6.4 C | -1.92 C |
| 1923 | 7.5 C | -0.74 C |
| 1924 | 6.9 C | -1.41 C |
| 1925 | 8.6 C | +0.34 C |
| 1926 | 8.5 C | +0.19 C |
| 1927 | 6.9 C | -1.42 C |
| 1929 | 6.7 C | -1.57 C |
| 1930 | 8.8 C | +0.48 C |
| 1931 | 10.0 C | +1.74 C |
| 1932 | 7.7 C | -0.53 C |
| 1933 | 9.3 C | +1.03 C |
| 1934 | 10.4 C | +2.10 C |
| 1935 | 8.9 C | +0.61 C |
| 1936 | 8.3 C | +0.06 C |
| 1937 | 7.9 C | -0.37 C |
| 1938 | 9.2 C | +0.90 C |
| 1939 | 9.8 C | +1.51 C |
| 1940 | 8.3 C | +0.02 C |
| 1941 | 9.3 C | +1.07 C |
| 1942 | 8.1 C | -0.17 C |
| 1943 | 8.0 C | -0.25 C |
| 1945 | 8.2 C | -0.03 C |
| 1946 | 9.3 C | +1.04 C |
| 1947 | 8.5 C | +0.27 C |
| 1948 | 8.0 C | -0.28 C |
| 1949 | 7.8 C | -0.46 C |
| 1950 | 6.6 C | -1.65 C |
| 1951 | 6.3 C | -1.98 C |
| 1952 | 8.1 C | -0.13 C |
| 1953 | 9.4 C | +1.10 C |
| 1954 | 9.7 C | +1.40 C |
| 1955 | 8.4 C | +0.16 C |
| 1956 | 9.0 C | +0.68 C |
| 1957 | 8.1 C | -0.17 C |
| 1958 | 8.8 C | +0.52 C |
| 1959 | 8.6 C | +0.28 C |
| 1964 | 8.2 C | -0.05 C |
| 1965 | 8.1 C | -0.14 C |
| 1966 | 7.7 C | -0.56 C |
| 1967 | 8.4 C | +0.10 C |
| 1968 | 8.3 C | +0.04 C |
| 1969 | 8.2 C | -0.11 C |
| 1970 | 7.9 C | -0.34 C |
| 1971 | 7.8 C | -0.50 C |
| 1972 | 7.6 C | -0.68 C |
| 1974 | 9.4 C | +1.17 C |
| 1976 | 9.2 C | +0.95 C |
| 1977 | 8.6 C | +0.35 C |
| 1979 | 6.8 C | -1.48 C |
| 1980 | 8.6 C | +0.34 C |
| 1981 | 9.3 C | +1.01 C |
| 1982 | 6.9 C | -1.38 C |
| 1983 | 7.9 C | -0.38 C |
| 1984 | 8.0 C | -0.24 C |
| 1985 | 6.7 C | -1.55 C |
| 1986 | 8.1 C | -0.20 C |
| 1987 | 8.7 C | +0.39 C |
| 1988 | 8.4 C | +0.11 C |
| 1989 | 7.7 C | -0.56 C |
| 1990 | 8.7 C | +0.44 C |
| 1991 | 8.4 C | +0.16 C |
| 1992 | 8.1 C | -0.21 C |
| 1993 | 6.1 C | -2.19 C |
| 1994 | 7.9 C | -0.40 C |
| 1995 | 7.7 C | -0.61 C |
| 1997 | 7.8 C | -0.52 C |
| 1998 | 8.6 C | +0.37 C |
| 1999 | 9.3 C | +1.03 C |
| 2000 | 8.4 C | +0.09 C |
| 2001 | 8.8 C | +0.51 C |
| 2002 | 8.4 C | +0.13 C |
| 2004 | 8.8 C | +0.55 C |
| 2005 | 9.5 C | +1.26 C |
| 2006 | 9.7 C | +1.44 C |
| 2007 | 9.5 C | +1.22 C |
| 2008 | 7.7 C | -0.57 C |
| 2009 | 7.5 C | -0.76 C |
| 2011 | 7.8 C | -0.49 C |
| 2012 | 10.3 C | +1.98 C |
| 2013 | 7.9 C | -0.35 C |
| 2014 | 7.5 C | -0.76 C |
| 2015 | 9.1 C | +0.84 C |
| 2016 | 9.4 C | +1.13 C |
| 2017 | 8.8 C | +0.48 C |
| 2018 | 7.1 C | -1.15 C |
| 2020 | 8.4 C | +0.15 C |
| 2021 | 8.8 C | +0.55 C |
| 2022 | 7.9 C | -0.37 C |
| 2023 | 8.6 C | +0.31 C |
| 2024 | 9.3 C | +1.00 C |
| 2025 | 8.8 C | +0.57 C |
The fitted trend in annual mean temperature here over 1911 to 2025 is 0.04 C (-0.01 to 0.10) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.08 F (-0.02 to 0.18) per decade. The slope is a straight line fitted to 100 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.04 C (-0.01 to 0.10) per decade | 0.08 F (-0.02 to 0.18) per decade | 1911 to 2025 | 100 | Not clearly different from zero |
| Mean daily maximum | 0.06 C (-0.01 to 0.14) per decade | 0.12 F (-0.02 to 0.25) per decade | 1911 to 2025 | 100 | Not clearly different from zero |
| Mean daily minimum | 0.02 C (-0.02 to 0.07) per decade | 0.04 F (-0.04 to 0.13) per decade | 1911 to 2025 | 100 | 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
1909 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 47.2 C (117.0 F) | 2006 | 41.7 C (107.1 F) | 118 |
| Coldest night (TNn) | -41.7 C (-43.1 F) | 1994 | -32.2 C (-26.0 F) | 118 |
| Wettest day (Rx1day) | 131.6 mm (5.2 in) | 1930 | 40.8 mm (1.6 in) | 118 |
| Wettest five days (Rx5day) | 194.0 mm (7.6 in) | 1930 | 61.8 mm (2.4 in) | 118 |
| Longest dry spell (CDD) | 74 days | 1939 | 38 days | 118 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1909 | 40.0 C (104.0 F) |
| 1910 | 46.7 C (116.1 F) |
| 1911 | 39.4 C (102.9 F) |
| 1912 | 40.0 C (104.0 F) |
| 1913 | 40.6 C (105.1 F) |
| 1914 | 41.7 C (107.1 F) |
| 1915 | 38.3 C (100.9 F) |
| 1916 | 40.6 C (105.1 F) |
| 1917 | 43.3 C (109.9 F) |
| 1918 | 38.9 C (102.0 F) |
| 1919 | 40.6 C (105.1 F) |
| 1920 | 41.7 C (107.1 F) |
| 1921 | 40.6 C (105.1 F) |
| 1922 | 37.8 C (100.0 F) |
| 1923 | 36.1 C (97.0 F) |
| 1924 | 39.4 C (102.9 F) |
| 1925 | 40.6 C (105.1 F) |
| 1926 | 42.2 C (108.0 F) |
| 1927 | 36.7 C (98.1 F) |
| 1928 | 42.8 C (109.0 F) |
| 1929 | 42.2 C (108.0 F) |
| 1930 | 43.3 C (109.9 F) |
| 1931 | 44.4 C (111.9 F) |
| 1932 | 40.6 C (105.1 F) |
| 1933 | 43.3 C (109.9 F) |
| 1934 | 43.9 C (111.0 F) |
| 1935 | 45.0 C (113.0 F) |
| 1936 | 45.6 C (114.1 F) |
| 1937 | 43.3 C (109.9 F) |
| 1938 | 43.3 C (109.9 F) |
| 1939 | 45.0 C (113.0 F) |
| 1940 | 43.9 C (111.0 F) |
| 1941 | 42.2 C (108.0 F) |
| 1942 | 38.9 C (102.0 F) |
| 1943 | 41.1 C (106.0 F) |
| 1944 | 40.6 C (105.1 F) |
| 1945 | 41.7 C (107.1 F) |
| 1946 | 42.2 C (108.0 F) |
| 1947 | 43.3 C (109.9 F) |
| 1948 | 40.6 C (105.1 F) |
| 1949 | 41.7 C (107.1 F) |
| 1950 | 37.8 C (100.0 F) |
| 1951 | 38.9 C (102.0 F) |
| 1952 | 43.9 C (111.0 F) |
| 1953 | 40.6 C (105.1 F) |
| 1954 | 43.3 C (109.9 F) |
| 1955 | 42.2 C (108.0 F) |
| 1956 | 39.4 C (102.9 F) |
| 1957 | 40.0 C (104.0 F) |
| 1958 | 40.6 C (105.1 F) |
| 1959 | 42.8 C (109.0 F) |
| 1960 | 42.2 C (108.0 F) |
| 1961 | 32.8 C (91.0 F) |
| 1962 | 41.1 C (106.0 F) |
| 1963 | 42.2 C (108.0 F) |
| 1964 | 42.8 C (109.0 F) |
| 1965 | 41.1 C (106.0 F) |
| 1966 | 41.7 C (107.1 F) |
| 1967 | 40.0 C (104.0 F) |
| 1968 | 40.0 C (104.0 F) |
| 1969 | 41.1 C (106.0 F) |
| 1970 | 42.8 C (109.0 F) |
| 1971 | 40.0 C (104.0 F) |
| 1972 | 40.6 C (105.1 F) |
| 1973 | 42.8 C (109.0 F) |
| 1974 | 42.2 C (108.0 F) |
| 1975 | 42.2 C (108.0 F) |
| 1976 | 41.1 C (106.0 F) |
| 1977 | 42.8 C (109.0 F) |
| 1978 | 41.7 C (107.1 F) |
| 1979 | 42.2 C (108.0 F) |
| 1980 | 42.8 C (109.0 F) |
| 1981 | 41.1 C (106.0 F) |
| 1982 | 40.0 C (104.0 F) |
| 1983 | 42.2 C (108.0 F) |
| 1984 | 39.4 C (102.9 F) |
| 1985 | 43.9 C (111.0 F) |
| 1986 | 38.3 C (100.9 F) |
| 1987 | 40.6 C (105.1 F) |
| 1988 | 43.3 C (109.9 F) |
| 1989 | 42.2 C (108.0 F) |
| 1990 | 40.6 C (105.1 F) |
| 1991 | 40.6 C (105.1 F) |
| 1992 | 38.9 C (102.0 F) |
| 1993 | 36.1 C (97.0 F) |
| 1994 | 38.9 C (102.0 F) |
| 1995 | 41.7 C (107.1 F) |
| 1996 | 39.4 C (102.9 F) |
| 1997 | 37.2 C (99.0 F) |
| 1998 | 42.2 C (108.0 F) |
| 1999 | 41.7 C (107.1 F) |
| 2000 | 41.7 C (107.1 F) |
| 2001 | 42.2 C (108.0 F) |
| 2002 | 43.9 C (111.0 F) |
| 2003 | 43.9 C (111.0 F) |
| 2004 | 40.6 C (105.1 F) |
| 2005 | 42.8 C (109.0 F) |
| 2006 | 47.2 C (117.0 F) |
| 2007 | 43.9 C (111.0 F) |
| 2008 | 38.3 C (100.9 F) |
| 2009 | 38.9 C (102.0 F) |
| 2010 | 42.2 C (108.0 F) |
| 2011 | 41.1 C (106.0 F) |
| 2012 | 43.9 C (111.0 F) |
| 2013 | 40.6 C (105.1 F) |
| 2014 | 41.7 C (107.1 F) |
| 2015 | 40.0 C (104.0 F) |
| 2016 | 41.7 C (107.1 F) |
| 2017 | 40.0 C (104.0 F) |
| 2018 | 38.9 C (102.0 F) |
| 2019 | 35.0 C (95.0 F) |
| 2020 | 39.4 C (102.9 F) |
| 2021 | 42.2 C (108.0 F) |
| 2022 | 43.3 C (109.9 F) |
| 2023 | 41.1 C (106.0 F) |
| 2024 | 41.7 C (107.1 F) |
| 2025 | 41.7 C (107.1 F) |
| 2026 | 45.6 C (114.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1909 | -26.1 C (-15.0 F) |
| 1910 | -26.7 C (-16.1 F) |
| 1911 | -30.6 C (-23.1 F) |
| 1912 | -34.4 C (-29.9 F) |
| 1913 | -36.1 C (-33.0 F) |
| 1914 | -35.6 C (-32.1 F) |
| 1915 | -33.3 C (-27.9 F) |
| 1916 | -41.1 C (-42.0 F) |
| 1917 | -38.9 C (-38.0 F) |
| 1918 | -36.7 C (-34.1 F) |
| 1919 | -34.4 C (-29.9 F) |
| 1920 | -35.0 C (-31.0 F) |
| 1921 | -28.3 C (-18.9 F) |
| 1922 | -35.0 C (-31.0 F) |
| 1923 | -30.6 C (-23.1 F) |
| 1924 | -37.2 C (-35.0 F) |
| 1925 | -35.0 C (-31.0 F) |
| 1926 | -29.4 C (-20.9 F) |
| 1927 | -38.3 C (-36.9 F) |
| 1928 | -33.3 C (-27.9 F) |
| 1929 | -36.7 C (-34.1 F) |
| 1930 | -33.9 C (-29.0 F) |
| 1931 | -23.3 C (-9.9 F) |
| 1932 | -35.0 C (-31.0 F) |
| 1933 | -33.3 C (-27.9 F) |
| 1934 | -35.6 C (-32.1 F) |
| 1935 | -31.7 C (-25.1 F) |
| 1936 | -40.6 C (-41.1 F) |
| 1937 | -30.0 C (-22.0 F) |
| 1938 | -30.0 C (-22.0 F) |
| 1939 | -32.2 C (-26.0 F) |
| 1940 | -35.0 C (-31.0 F) |
| 1941 | -25.0 C (-13.0 F) |
| 1942 | -33.9 C (-29.0 F) |
| 1943 | -32.8 C (-27.0 F) |
| 1944 | -36.1 C (-33.0 F) |
| 1945 | -27.2 C (-17.0 F) |
| 1946 | -31.1 C (-24.0 F) |
| 1947 | -30.6 C (-23.1 F) |
| 1948 | -30.6 C (-23.1 F) |
| 1949 | -37.8 C (-36.0 F) |
| 1950 | -36.1 C (-33.0 F) |
| 1951 | -33.9 C (-29.0 F) |
| 1952 | -30.6 C (-23.1 F) |
| 1953 | -27.8 C (-18.0 F) |
| 1954 | -30.0 C (-22.0 F) |
| 1955 | -27.2 C (-17.0 F) |
| 1956 | -28.9 C (-20.0 F) |
| 1957 | -33.9 C (-29.0 F) |
| 1958 | -30.6 C (-23.1 F) |
| 1959 | -33.9 C (-29.0 F) |
| 1960 | -33.3 C (-27.9 F) |
| 1961 | -26.1 C (-15.0 F) |
| 1962 | -33.3 C (-27.9 F) |
| 1963 | -36.1 C (-33.0 F) |
| 1964 | -32.2 C (-26.0 F) |
| 1965 | -28.9 C (-20.0 F) |
| 1966 | -36.1 C (-33.0 F) |
| 1967 | -35.0 C (-31.0 F) |
| 1968 | -36.1 C (-33.0 F) |
| 1969 | -30.6 C (-23.1 F) |
| 1970 | -36.7 C (-34.1 F) |
| 1971 | -32.2 C (-26.0 F) |
| 1972 | -34.4 C (-29.9 F) |
| 1973 | -30.6 C (-23.1 F) |
| 1974 | -32.8 C (-27.0 F) |
| 1975 | -35.0 C (-31.0 F) |
| 1976 | -34.4 C (-29.9 F) |
| 1977 | -32.8 C (-27.0 F) |
| 1978 | -31.1 C (-24.0 F) |
| 1979 | -33.9 C (-29.0 F) |
| 1980 | -31.1 C (-24.0 F) |
| 1981 | -27.2 C (-17.0 F) |
| 1982 | -33.3 C (-27.9 F) |
| 1983 | -34.4 C (-29.9 F) |
| 1984 | -30.0 C (-22.0 F) |
| 1985 | -32.2 C (-26.0 F) |
| 1986 | -27.8 C (-18.0 F) |
| 1987 | -22.8 C (-9.0 F) |
| 1988 | -36.1 C (-33.0 F) |
| 1989 | -36.1 C (-33.0 F) |
| 1990 | -35.6 C (-32.1 F) |
| 1991 | -27.2 C (-17.0 F) |
| 1992 | -24.4 C (-11.9 F) |
| 1993 | -33.3 C (-27.9 F) |
| 1994 | -41.7 C (-43.1 F) |
| 1995 | -27.8 C (-18.0 F) |
| 1996 | -36.7 C (-34.1 F) |
| 1997 | -27.2 C (-17.0 F) |
| 1998 | -36.1 C (-33.0 F) |
| 1999 | -30.6 C (-23.1 F) |
| 2000 | -31.7 C (-25.1 F) |
| 2001 | -28.3 C (-18.9 F) |
| 2002 | -24.4 C (-11.9 F) |
| 2003 | -32.2 C (-26.0 F) |
| 2004 | -27.2 C (-17.0 F) |
| 2005 | -31.1 C (-24.0 F) |
| 2006 | -31.7 C (-25.1 F) |
| 2007 | -36.1 C (-33.0 F) |
| 2008 | -29.4 C (-20.9 F) |
| 2009 | -27.2 C (-17.0 F) |
| 2010 | -33.3 C (-27.9 F) |
| 2011 | -29.4 C (-20.9 F) |
| 2012 | -27.8 C (-18.0 F) |
| 2013 | -31.7 C (-25.1 F) |
| 2014 | -32.2 C (-26.0 F) |
| 2015 | -27.2 C (-17.0 F) |
| 2016 | -33.3 C (-27.9 F) |
| 2017 | -30.0 C (-22.0 F) |
| 2018 | -36.7 C (-34.1 F) |
| 2019 | -28.3 C (-18.9 F) |
| 2020 | -25.6 C (-14.1 F) |
| 2021 | -37.2 C (-35.0 F) |
| 2022 | -30.0 C (-22.0 F) |
| 2023 | -31.1 C (-24.0 F) |
| 2024 | -30.6 C (-23.1 F) |
| 2025 | -36.7 C (-34.1 F) |
| 2026 | -26.7 C (-16.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1909 | 55.4 mm (2.2 in) |
| 1910 | 20.3 mm (0.8 in) |
| 1911 | 81.3 mm (3.2 in) |
| 1912 | 35.6 mm (1.4 in) |
| 1913 | 26.9 mm (1.1 in) |
| 1914 | 27.7 mm (1.1 in) |
| 1915 | 101.6 mm (4.0 in) |
| 1916 | 35.8 mm (1.4 in) |
| 1917 | 24.9 mm (1.0 in) |
| 1918 | 30.5 mm (1.2 in) |
| 1919 | 41.1 mm (1.6 in) |
| 1920 | 47.8 mm (1.9 in) |
| 1921 | 25.9 mm (1.0 in) |
| 1922 | 55.1 mm (2.2 in) |
| 1923 | 62.5 mm (2.5 in) |
| 1924 | 22.4 mm (0.9 in) |
| 1925 | 62.2 mm (2.4 in) |
| 1926 | 36.6 mm (1.4 in) |
| 1927 | 45.7 mm (1.8 in) |
| 1928 | 63.5 mm (2.5 in) |
| 1929 | 38.1 mm (1.5 in) |
| 1930 | 131.6 mm (5.2 in) |
| 1931 | 24.9 mm (1.0 in) |
| 1932 | 48.5 mm (1.9 in) |
| 1933 | 27.9 mm (1.1 in) |
| 1934 | 27.2 mm (1.1 in) |
| 1935 | 50.0 mm (2.0 in) |
| 1936 | 14.0 mm (0.6 in) |
| 1937 | 59.7 mm (2.4 in) |
| 1938 | 36.3 mm (1.4 in) |
| 1939 | 16.0 mm (0.6 in) |
| 1940 | 24.9 mm (1.0 in) |
| 1941 | 41.7 mm (1.6 in) |
| 1942 | 40.9 mm (1.6 in) |
| 1943 | 90.2 mm (3.6 in) |
| 1944 | 32.0 mm (1.3 in) |
| 1945 | 21.6 mm (0.9 in) |
| 1946 | 44.7 mm (1.8 in) |
| 1947 | 33.3 mm (1.3 in) |
| 1948 | 77.2 mm (3.0 in) |
| 1949 | 31.8 mm (1.3 in) |
| 1950 | 23.9 mm (0.9 in) |
| 1951 | 40.6 mm (1.6 in) |
| 1952 | 40.1 mm (1.6 in) |
| 1953 | 41.1 mm (1.6 in) |
| 1954 | 43.9 mm (1.7 in) |
| 1955 | 83.8 mm (3.3 in) |
| 1956 | 37.6 mm (1.5 in) |
| 1957 | 40.4 mm (1.6 in) |
| 1958 | 39.9 mm (1.6 in) |
| 1959 | 36.6 mm (1.4 in) |
| 1960 | 53.8 mm (2.1 in) |
| 1961 | 30.7 mm (1.2 in) |
| 1962 | 37.1 mm (1.5 in) |
| 1963 | 78.7 mm (3.1 in) |
| 1964 | 25.1 mm (1.0 in) |
| 1965 | 57.7 mm (2.3 in) |
| 1966 | 64.0 mm (2.5 in) |
| 1967 | 70.6 mm (2.8 in) |
| 1968 | 55.9 mm (2.2 in) |
| 1969 | 72.4 mm (2.9 in) |
| 1970 | 56.1 mm (2.2 in) |
| 1971 | 70.4 mm (2.8 in) |
| 1972 | 36.3 mm (1.4 in) |
| 1973 | 55.9 mm (2.2 in) |
| 1974 | 43.2 mm (1.7 in) |
| 1975 | 36.3 mm (1.4 in) |
| 1976 | 36.3 mm (1.4 in) |
| 1977 | 37.1 mm (1.5 in) |
| 1978 | 40.1 mm (1.6 in) |
| 1979 | 43.9 mm (1.7 in) |
| 1980 | 39.9 mm (1.6 in) |
| 1981 | 41.9 mm (1.6 in) |
| 1982 | 56.9 mm (2.2 in) |
| 1983 | 47.0 mm (1.9 in) |
| 1984 | 68.1 mm (2.7 in) |
| 1985 | 29.7 mm (1.2 in) |
| 1986 | 49.3 mm (1.9 in) |
| 1987 | 25.4 mm (1.0 in) |
| 1988 | 60.5 mm (2.4 in) |
| 1989 | 54.6 mm (2.1 in) |
| 1990 | 47.2 mm (1.9 in) |
| 1991 | 50.8 mm (2.0 in) |
| 1992 | 72.6 mm (2.9 in) |
| 1993 | 37.1 mm (1.5 in) |
| 1994 | 59.2 mm (2.3 in) |
| 1995 | 27.4 mm (1.1 in) |
| 1996 | 42.7 mm (1.7 in) |
| 1997 | 65.5 mm (2.6 in) |
| 1998 | 53.1 mm (2.1 in) |
| 1999 | 32.0 mm (1.3 in) |
| 2000 | 30.2 mm (1.2 in) |
| 2001 | 39.4 mm (1.6 in) |
| 2002 | 34.8 mm (1.4 in) |
| 2003 | 16.3 mm (0.6 in) |
| 2004 | 45.2 mm (1.8 in) |
| 2005 | 46.2 mm (1.8 in) |
| 2006 | 29.7 mm (1.2 in) |
| 2007 | 42.4 mm (1.7 in) |
| 2008 | 47.5 mm (1.9 in) |
| 2009 | 26.2 mm (1.0 in) |
| 2010 | 41.9 mm (1.6 in) |
| 2011 | 34.3 mm (1.4 in) |
| 2012 | 71.1 mm (2.8 in) |
| 2013 | 77.0 mm (3.0 in) |
| 2014 | 42.2 mm (1.7 in) |
| 2015 | 58.2 mm (2.3 in) |
| 2016 | 42.2 mm (1.7 in) |
| 2017 | 34.8 mm (1.4 in) |
| 2018 | 24.9 mm (1.0 in) |
| 2019 | 33.0 mm (1.3 in) |
| 2020 | 22.9 mm (0.9 in) |
| 2021 | 34.5 mm (1.4 in) |
| 2022 | 38.6 mm (1.5 in) |
| 2023 | 56.4 mm (2.2 in) |
| 2024 | 18.8 mm (0.7 in) |
| 2025 | 31.5 mm (1.2 in) |
| 2026 | 33.3 mm (1.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1909 | 93.5 mm (3.7 in) |
| 1910 | 25.6 mm (1.0 in) |
| 1911 | 85.1 mm (3.4 in) |
| 1912 | 63.5 mm (2.5 in) |
| 1913 | 38.4 mm (1.5 in) |
| 1914 | 42.6 mm (1.7 in) |
| 1915 | 123.4 mm (4.9 in) |
| 1916 | 49.3 mm (1.9 in) |
| 1917 | 38.7 mm (1.5 in) |
| 1918 | 43.9 mm (1.7 in) |
| 1919 | 52.6 mm (2.1 in) |
| 1920 | 59.0 mm (2.3 in) |
| 1921 | 75.4 mm (3.0 in) |
| 1922 | 55.1 mm (2.2 in) |
| 1923 | 93.7 mm (3.7 in) |
| 1924 | 30.5 mm (1.2 in) |
| 1925 | 97.9 mm (3.9 in) |
| 1926 | 60.2 mm (2.4 in) |
| 1927 | 93.7 mm (3.7 in) |
| 1928 | 72.9 mm (2.9 in) |
| 1929 | 39.4 mm (1.6 in) |
| 1930 | 194.0 mm (7.6 in) |
| 1931 | 35.8 mm (1.4 in) |
| 1932 | 58.2 mm (2.3 in) |
| 1933 | 67.1 mm (2.6 in) |
| 1934 | 42.7 mm (1.7 in) |
| 1935 | 63.8 mm (2.5 in) |
| 1936 | 20.4 mm (0.8 in) |
| 1937 | 87.1 mm (3.4 in) |
| 1938 | 54.6 mm (2.1 in) |
| 1939 | 28.7 mm (1.1 in) |
| 1940 | 29.0 mm (1.1 in) |
| 1941 | 74.2 mm (2.9 in) |
| 1942 | 86.3 mm (3.4 in) |
| 1943 | 108.0 mm (4.3 in) |
| 1944 | 57.6 mm (2.3 in) |
| 1945 | 40.6 mm (1.6 in) |
| 1946 | 63.0 mm (2.5 in) |
| 1947 | 37.8 mm (1.5 in) |
| 1948 | 94.4 mm (3.7 in) |
| 1949 | 55.5 mm (2.2 in) |
| 1950 | 40.6 mm (1.6 in) |
| 1951 | 58.6 mm (2.3 in) |
| 1952 | 92.5 mm (3.6 in) |
| 1953 | 56.9 mm (2.2 in) |
| 1954 | 61.5 mm (2.4 in) |
| 1955 | 92.5 mm (3.6 in) |
| 1956 | 68.9 mm (2.7 in) |
| 1957 | 88.7 mm (3.5 in) |
| 1958 | 54.4 mm (2.1 in) |
| 1959 | 65.3 mm (2.6 in) |
| 1960 | 67.3 mm (2.6 in) |
| 1961 | 50.8 mm (2.0 in) |
| 1962 | 62.3 mm (2.5 in) |
| 1963 | 101.6 mm (4.0 in) |
| 1964 | 58.0 mm (2.3 in) |
| 1965 | 58.5 mm (2.3 in) |
| 1966 | 74.7 mm (2.9 in) |
| 1967 | 151.4 mm (6.0 in) |
| 1968 | 97.7 mm (3.8 in) |
| 1969 | 89.9 mm (3.5 in) |
| 1970 | 59.4 mm (2.3 in) |
| 1971 | 111.5 mm (4.4 in) |
| 1972 | 62.5 mm (2.5 in) |
| 1973 | 78.0 mm (3.1 in) |
| 1974 | 56.9 mm (2.2 in) |
| 1975 | 51.3 mm (2.0 in) |
| 1976 | 40.7 mm (1.6 in) |
| 1977 | 57.9 mm (2.3 in) |
| 1978 | 45.2 mm (1.8 in) |
| 1979 | 91.1 mm (3.6 in) |
| 1980 | 61.0 mm (2.4 in) |
| 1981 | 58.6 mm (2.3 in) |
| 1982 | 102.8 mm (4.0 in) |
| 1983 | 67.9 mm (2.7 in) |
| 1984 | 87.9 mm (3.5 in) |
| 1985 | 30.5 mm (1.2 in) |
| 1986 | 71.4 mm (2.8 in) |
| 1987 | 53.9 mm (2.1 in) |
| 1988 | 70.4 mm (2.8 in) |
| 1989 | 55.9 mm (2.2 in) |
| 1990 | 55.6 mm (2.2 in) |
| 1991 | 89.6 mm (3.5 in) |
| 1992 | 106.1 mm (4.2 in) |
| 1993 | 56.9 mm (2.2 in) |
| 1994 | 64.6 mm (2.5 in) |
| 1995 | 50.1 mm (2.0 in) |
| 1996 | 88.6 mm (3.5 in) |
| 1997 | 70.9 mm (2.8 in) |
| 1998 | 68.1 mm (2.7 in) |
| 1999 | 56.4 mm (2.2 in) |
| 2000 | 57.9 mm (2.3 in) |
| 2001 | 39.4 mm (1.6 in) |
| 2002 | 71.7 mm (2.8 in) |
| 2003 | 32.3 mm (1.3 in) |
| 2004 | 66.5 mm (2.6 in) |
| 2005 | 69.3 mm (2.7 in) |
| 2006 | 43.9 mm (1.7 in) |
| 2007 | 50.1 mm (2.0 in) |
| 2008 | 71.6 mm (2.8 in) |
| 2009 | 38.1 mm (1.5 in) |
| 2010 | 80.0 mm (3.1 in) |
| 2011 | 45.0 mm (1.8 in) |
| 2012 | 75.1 mm (3.0 in) |
| 2013 | 113.1 mm (4.5 in) |
| 2014 | 46.0 mm (1.8 in) |
| 2015 | 85.9 mm (3.4 in) |
| 2016 | 62.0 mm (2.4 in) |
| 2017 | 35.1 mm (1.4 in) |
| 2018 | 71.9 mm (2.8 in) |
| 2019 | 82.5 mm (3.2 in) |
| 2020 | 31.5 mm (1.2 in) |
| 2021 | 45.5 mm (1.8 in) |
| 2022 | 65.8 mm (2.6 in) |
| 2023 | 111.0 mm (4.4 in) |
| 2024 | 34.8 mm (1.4 in) |
| 2025 | 66.1 mm (2.6 in) |
| 2026 | 51.5 mm (2.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1909 | 32 days |
| 1910 | 38 days |
| 1911 | 54 days |
| 1912 | 39 days |
| 1913 | 53 days |
| 1914 | 44 days |
| 1915 | 53 days |
| 1916 | 36 days |
| 1917 | 25 days |
| 1918 | 30 days |
| 1919 | 32 days |
| 1920 | 26 days |
| 1921 | 35 days |
| 1922 | 37 days |
| 1923 | 47 days |
| 1924 | 53 days |
| 1925 | 38 days |
| 1926 | 40 days |
| 1927 | 45 days |
| 1928 | 52 days |
| 1929 | 34 days |
| 1930 | 36 days |
| 1931 | 44 days |
| 1932 | 36 days |
| 1933 | 42 days |
| 1934 | 30 days |
| 1935 | 48 days |
| 1936 | 57 days |
| 1937 | 53 days |
| 1938 | 39 days |
| 1939 | 74 days |
| 1940 | 46 days |
| 1941 | 54 days |
| 1942 | 37 days |
| 1943 | 64 days |
| 1944 | 52 days |
| 1945 | 64 days |
| 1946 | 35 days |
| 1947 | 36 days |
| 1948 | 51 days |
| 1949 | 51 days |
| 1950 | 53 days |
| 1951 | 33 days |
| 1952 | 64 days |
| 1953 | 47 days |
| 1954 | 32 days |
| 1955 | 46 days |
| 1956 | 33 days |
| 1957 | 45 days |
| 1958 | 40 days |
| 1959 | 38 days |
| 1960 | 41 days |
| 1961 | 30 days |
| 1962 | 44 days |
| 1963 | 44 days |
| 1964 | 66 days |
| 1965 | 32 days |
| 1966 | 24 days |
| 1967 | 35 days |
| 1968 | 28 days |
| 1969 | 20 days |
| 1970 | 24 days |
| 1971 | 31 days |
| 1972 | 23 days |
| 1973 | 23 days |
| 1974 | 38 days |
| 1975 | 67 days |
| 1976 | 35 days |
| 1977 | 26 days |
| 1978 | 41 days |
| 1979 | 46 days |
| 1980 | 29 days |
| 1981 | 45 days |
| 1982 | 38 days |
| 1983 | 53 days |
| 1984 | 41 days |
| 1985 | 44 days |
| 1986 | 41 days |
| 1987 | 54 days |
| 1988 | 27 days |
| 1989 | 26 days |
| 1990 | 42 days |
| 1991 | 29 days |
| 1992 | 60 days |
| 1993 | 22 days |
| 1994 | 23 days |
| 1995 | 48 days |
| 1996 | 32 days |
| 1997 | 47 days |
| 1998 | 39 days |
| 1999 | 42 days |
| 2000 | 25 days |
| 2001 | 36 days |
| 2002 | 34 days |
| 2003 | 38 days |
| 2004 | 60 days |
| 2005 | 26 days |
| 2006 | 43 days |
| 2007 | 41 days |
| 2008 | 21 days |
| 2009 | 23 days |
| 2010 | 33 days |
| 2011 | 32 days |
| 2012 | 45 days |
| 2013 | 26 days |
| 2014 | 37 days |
| 2015 | 36 days |
| 2016 | 28 days |
| 2017 | 27 days |
| 2018 | 27 days |
| 2019 | 17 days |
| 2020 | 58 days |
| 2021 | 31 days |
| 2022 | 32 days |
| 2023 | 59 days |
| 2024 | 53 days |
| 2025 | 23 days |
| 2026 | 35 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
100 years with a frostAcross 100 years with a frost, the median last spring frost at Cottonwood 2 E falls on 17 May and the median first autumn frost on 21 September, which leaves a median of 128 days between them.
In 1992 to 2025 the median growing season was 135 days. That is 9 days more than in 1911 to 1943.
Fitted over all years, the growing season changes by +0.8 days per decade at this station.
| Measure | Median, all years | Earliest period (1911 to 1943) | Recent period (1992 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 17 May | 19 May | 15 May | 4 days earlier | -0.5 days per decade |
| First autumn frost | 21 September | 20 September | 24 September | 4 days later | +0.3 days per decade |
| Growing days | 128 days | 126 days | 135 days | 9 days more | +0.8 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
111 years, 1910 to 2025A day with at least 41.1 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 108.9 mm (4.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 41.1 mm (1.6 in) | |
| 5 years | 57.8 mm (2.3 in) | |
| 10 years | 69.4 mm (2.7 in) | |
| 25 years | 84.8 mm (3.3 in) | |
| 50 years | 96.7 mm (3.8 in) | |
| 100 years | 108.9 mm (4.3 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 111 years of values from 1910 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: 131.6 mm (5.2 in) in 1930; 101.6 mm (4.0 in) in 1915; 90.2 mm (3.6 in) in 1943.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2009 to 2025 against 1961 to 1990Over 2009 to 2025, Cottonwood 2 E had a mean temperature of 8.5 C (47.3 F) and 397.3 mm (15.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Dinosaur Nm (United States, 717 km away), Mission 14 S (United States, 138 km away) and Chadron 3SW (United States, 160 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Dinosaur Nm | United States | 717 km (446 mi) | 8.3 C (46.9 F) | 289.0 mm (11.4 in) | 0.98 |
| Mission 14 S | United States | 138 km (86 mi) | 8.6 C (47.4 F) | 458.8 mm (18.1 in) | 0.99 |
| Chadron 3SW | United States | 160 km (99 mi) | 8.7 C (47.6 F) | 377.4 mm (14.9 in) | 0.99 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).