Eureka Weather Records (USC00392797)
Record envelope, standing records and threshold days for Eureka (USC00392797), South Dakota, United States, with 150 years of record.
Key Facts for Eureka
- Eureka (USC00392797) is a weather station in South Dakota, United States at 45.77 latitude and -99.62 longitude, 570 m (1,871 ft) above sea level.
- The station reports from 1877 to 2026, 150 years of record.
- 1,464 records set at Eureka still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Eureka set a daily record high minimum temperature of 14.4 C (57.9 F) on 27 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: South Dakota, United States, 45.77 latitude, -99.62 longitude.
- Elevation: 570 m (1,871 ft).
- Period of record: 1877 to 2026, 150 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
4 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 14.4 C (57.9 F) | -42.2 C (-44.0 F) | 7.2 C (45.0 F) | -30.0 C (-22.0 F) |
| Feb | 19.4 C (66.9 F) | -42.2 C (-44.0 F) | 15.6 C (60.1 F) | -21.1 C (-6.0 F) |
| Mar | 29.4 C (84.9 F) | -33.9 C (-29.0 F) | 23.9 C (75.0 F) | -20.0 C (-4.0 F) |
| Apr | 35.6 C (96.1 F) | -22.2 C (-8.0 F) | 31.7 C (89.1 F) | -9.4 C (15.1 F) |
| May | 41.7 C (107.1 F) | -11.1 C (12.0 F) | 32.2 C (90.0 F) | -7.2 C (19.0 F) |
| Jun | 41.7 C (107.1 F) | -1.7 C (28.9 F) | 31.7 C (89.1 F) | 3.9 C (39.0 F) |
| Jul | 45.6 C (114.1 F) | 0.0 C (32.0 F) | 38.3 C (100.9 F) | 12.8 C (55.0 F) |
| Aug | 42.8 C (109.0 F) | -1.7 C (28.9 F) | 36.7 C (98.1 F) | 6.7 C (44.1 F) |
| Sep | 41.7 C (107.1 F) | -9.4 C (15.1 F) | 31.1 C (88.0 F) | 6.7 C (44.1 F) |
| Oct | 34.4 C (93.9 F) | -21.1 C (-6.0 F) | 30.0 C (86.0 F) | 0.0 C (32.0 F) |
| Nov | 25.6 C (78.1 F) | -30.6 C (-23.1 F) | n/a | n/a |
| Dec | 17.8 C (64.0 F) | -42.8 C (-45.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1897 | 13 |
| 1898 | 17 |
| 1908 | 9 |
| 1909 | 13 |
| 1910 | 20 |
| 1911 | 15 |
| 1912 | 22 |
| 1913 | 8 |
| 1914 | 23 |
| 1915 | 23 |
| 1916 | 21 |
| 1917 | 33 |
| 1918 | 15 |
| 1919 | 21 |
| 1920 | 3 |
| 1921 | 15 |
| 1922 | 12 |
| 1923 | 11 |
| 1924 | 16 |
| 1925 | 13 |
| 1926 | 7 |
| 1927 | 15 |
| 1928 | 12 |
| 1929 | 13 |
| 1930 | 11 |
| 1931 | 14 |
| 1932 | 11 |
| 1933 | 17 |
| 1934 | 47 |
| 1935 | 14 |
| 1936 | 53 |
| 1937 | 13 |
| 1938 | 5 |
| 1939 | 19 |
| 1940 | 7 |
| 1941 | 15 |
| 1942 | 15 |
| 1943 | 19 |
| 1944 | 17 |
| 1945 | 10 |
| 1946 | 8 |
| 1947 | 18 |
| 1948 | 7 |
| 1949 | 14 |
| 1950 | 15 |
| 1951 | 17 |
| 1952 | 7 |
| 1953 | 12 |
| 1954 | 12 |
| 1955 | 10 |
| 1956 | 9 |
| 1957 | 6 |
| 1958 | 11 |
| 1959 | 16 |
| 1960 | 6 |
| 1961 | 6 |
| 1962 | 10 |
| 1963 | 11 |
| 1964 | 19 |
| 1965 | 17 |
| 1966 | 11 |
| 1967 | 8 |
| 1968 | 9 |
| 1969 | 9 |
| 1970 | 4 |
| 1971 | 8 |
| 1972 | 9 |
| 1973 | 4 |
| 1974 | 8 |
| 1975 | 10 |
| 1976 | 12 |
| 1977 | 9 |
| 1978 | 6 |
| 1979 | 6 |
| 1980 | 9 |
| 1981 | 11 |
| 1982 | 7 |
| 1983 | 13 |
| 1984 | 6 |
| 1985 | 12 |
| 1986 | 4 |
| 1987 | 9 |
| 1988 | 19 |
| 1989 | 15 |
| 1990 | 7 |
| 1991 | 19 |
| 1992 | 19 |
| 1993 | 4 |
| 1994 | 5 |
| 1995 | 9 |
| 1996 | 6 |
| 1997 | 11 |
| 1998 | 11 |
| 1999 | 8 |
| 2000 | 15 |
| 2001 | 8 |
| 2002 | 10 |
| 2003 | 10 |
| 2004 | 7 |
| 2005 | 12 |
| 2006 | 11 |
| 2007 | 9 |
| 2008 | 3 |
| 2009 | 9 |
| 2010 | 3 |
| 2011 | 8 |
| 2012 | 26 |
| 2013 | 6 |
| 2014 | 6 |
| 2015 | 6 |
| 2016 | 8 |
| 2017 | 14 |
| 2018 | 10 |
| 2019 | 13 |
| 2020 | 7 |
| 2021 | 9 |
| 2022 | 7 |
| 2023 | 9 |
| 2024 | 11 |
| 2025 | 17 |
| 2026 | 5 |
All-Time Record Progression
19 new records| Date | Kind | Detail |
|---|---|---|
| 1940-04-03 | Record daily snowfall | Record daily snowfall 27.9 cm (11.0 in) |
| 1942-05-30 | Record daily precipitation | Record daily precipitation 89.9 mm (3.5 in) |
| 1948-03-06 | Record snow depth | Record snow depth 63.5 cm (25.0 in) |
| 1948-03-07 | Record snow depth | Record snow depth 66.0 cm (26.0 in) |
| 1950-01-24 | Record daily snowfall | Record daily snowfall 31.2 cm (12.3 in) |
| 1950-01-24 | Record snow depth | Record snow depth 88.9 cm (35.0 in) |
| 1964-06-18 | Record daily precipitation | Record daily precipitation 170.9 mm (6.7 in) |
| 1966-03-03 | Record daily snowfall | Record daily snowfall 39.1 cm (15.4 in) |
| 1985-12-04 | Record snow depth | Record snow depth 94.0 cm (37.0 in) |
| 1985-12-16 | Record snow depth | Record snow depth 99.1 cm (39.0 in) |
| 1985-12-19 | Record snow depth | Record snow depth 104.1 cm (41.0 in) |
| 1985-12-20 | Record snow depth | Record snow depth 109.2 cm (43.0 in) |
| 1985-12-27 | Record snow depth | Record snow depth 111.8 cm (44.0 in) |
| 1995-04-11 | Record daily snowfall | Record daily snowfall 45.7 cm (18.0 in) |
| 1997-01-05 | Record snow depth | Record snow depth 116.8 cm (46.0 in) |
| 1997-01-08 | Record snow depth | Record snow depth 119.4 cm (47.0 in) |
| 1997-01-10 | Record snow depth | Record snow depth 127.0 cm (50.0 in) |
| 1997-01-16 | Record snow depth | Record snow depth 129.5 cm (51.0 in) |
| 1997-01-24 | Record snow depth | Record snow depth 134.6 cm (53.0 in) |
Wettest Day of Each Month
Jun: 170.9 mm (6.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 21.3 mm (0.8 in) | 4 January 1997 |
| Feb | 48.0 mm (1.9 in) | 26 February 2000 |
| Mar | 47.0 mm (1.9 in) | 18 March 1968 |
| Apr | 62.0 mm (2.4 in) | 28 April 1989 |
| May | 100.6 mm (4.0 in) | 18 May 2018 |
| Jun | 170.9 mm (6.7 in) | 18 June 1964 |
| Jul | 88.1 mm (3.5 in) | 16 July 1927 |
| Aug | 76.7 mm (3.0 in) | 25 August 1960 |
| Sep | 54.9 mm (2.2 in) | 18 September 1946 |
| Oct | 74.2 mm (2.9 in) | 9 October 1982 |
| Nov | 37.8 mm (1.5 in) | 5 November 1922 |
| Dec | 25.1 mm (1.0 in) | 26 December 2016 |
Period of Record Coverage
1877 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1877 | 1 | 0% | No |
| 1897 | 87 | 24% | No |
| 1898 | 161 | 44% | No |
| 1908 | 153 | 42% | No |
| 1909 | 363 | 99% | Yes |
| 1910 | 363 | 99% | Yes |
| 1911 | 362 | 99% | Yes |
| 1912 | 364 | 99% | Yes |
| 1913 | 363 | 99% | Yes |
| 1914 | 364 | 100% | Yes |
| 1915 | 364 | 100% | Yes |
| 1916 | 365 | 100% | Yes |
| 1917 | 350 | 96% | Yes |
| 1918 | 348 | 95% | Yes |
| 1919 | 364 | 100% | Yes |
| 1920 | 365 | 100% | Yes |
| 1921 | 364 | 100% | Yes |
| 1922 | 363 | 99% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 362 | 99% | Yes |
| 1926 | 363 | 99% | Yes |
| 1927 | 362 | 99% | Yes |
| 1928 | 365 | 100% | Yes |
| 1929 | 363 | 99% | Yes |
| 1930 | 363 | 99% | Yes |
| 1931 | 361 | 99% | Yes |
| 1932 | 363 | 99% | Yes |
| 1933 | 360 | 99% | Yes |
| 1934 | 363 | 99% | Yes |
| 1935 | 360 | 99% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 361 | 99% | Yes |
| 1944 | 362 | 99% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 364 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 363 | 99% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 363 | 99% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 363 | 99% | Yes |
| 1959 | 359 | 98% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 363 | 99% | Yes |
| 1974 | 360 | 99% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 364 | 99% | Yes |
| 1977 | 355 | 97% | Yes |
| 1978 | 356 | 98% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 363 | 99% | Yes |
| 1981 | 363 | 99% | Yes |
| 1982 | 293 | 80% | No |
| 1983 | 307 | 84% | No |
| 1984 | 308 | 84% | No |
| 1985 | 289 | 79% | No |
| 1986 | 275 | 75% | No |
| 1987 | 327 | 90% | No |
| 1988 | 359 | 98% | Yes |
| 1989 | 355 | 97% | Yes |
| 1990 | 355 | 97% | Yes |
| 1991 | 352 | 96% | Yes |
| 1992 | 341 | 93% | Yes |
| 1993 | 312 | 85% | No |
| 1994 | 285 | 78% | No |
| 1995 | 285 | 78% | No |
| 1996 | 280 | 77% | No |
| 1997 | 298 | 82% | No |
| 1998 | 302 | 83% | No |
| 1999 | 336 | 92% | Yes |
| 2000 | 342 | 93% | Yes |
| 2001 | 349 | 96% | Yes |
| 2002 | 355 | 97% | Yes |
| 2003 | 336 | 92% | Yes |
| 2004 | 360 | 98% | Yes |
| 2005 | 360 | 99% | Yes |
| 2006 | 360 | 99% | Yes |
| 2007 | 358 | 98% | Yes |
| 2008 | 331 | 90% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 361 | 99% | Yes |
| 2011 | 362 | 99% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 285 | 78% | No |
| 2014 | 365 | 100% | Yes |
| 2015 | 224 | 61% | No |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 364 | 100% | Yes |
| 2024 | 365 | 100% | Yes |
| 2025 | 363 | 99% | Yes |
| 2026 | 286 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 September 2026 | Eureka, US | daily high min (Provisional) | 14.4 C (57.9 F) | 1.1 C (2.0 F) | 11 years | 15 of 100 (Routine) |
| 26 September 2026 | Eureka, US | daily high min (Provisional) | 13.9 C (57.0 F) | 0.6 C (1.1 F) | 28 years | 19 of 100 (Routine) |
| 25 September 2026 | Eureka, US | daily high min (Provisional) | 12.8 C (55.0 F) | 0.6 C (1.1 F) | 88 years | 37 of 100 (Notable) |
| 13 August 2026 | Eureka, US | daily rain | 42.9 mm (1.7 in) | 2.8 mm (0.11 in) | 80 years | 36 of 100 (Notable) |
| 23 April 2026 | Eureka, US | daily high max | 31.7 C (89.1 F) | 0.6 C (1.1 F) | 36 years | 20 of 100 (Routine) |
| 4 April 2026 | Eureka, US | daily snowfall | 18.5 cm (7.3 in) | 6.3 cm (2.5 in) | 68 years | 38 of 100 (Notable) |
| 26 March 2026 | Eureka, US | daily high max | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 100 years | 40 of 100 (Notable) |
| 9 March 2026 | Eureka, US | daily high max | 20.0 C (68.0 F) | 2.8 C (5.0 F) | 37 years | 24 of 100 (Routine) |
| 15 February 2026 | Eureka, US | daily high max | 15.6 C (60.1 F) | 2.3 C (4.1 F) | 95 years | 40 of 100 (Notable) |
| 6 February 2026 | Eureka, US | daily high min | 0.0 C (32.0 F) | 1.1 C (2.0 F) | 35 years | 21 of 100 (Routine) |
| 10 December 2025 | Eureka, US | daily rain | 4.3 mm (0.17 in) | 1.0 mm (0.04 in) | 55 years | 20 of 100 (Routine) |
| 27 October 2025 | Eureka, US | daily high min | 10.0 C (50.0 F) | 2.2 C (4.0 F) | 99 years | 43 of 100 (Notable) |
| 1 October 2025 | Eureka, US | daily high min (Tie) | 13.9 C (57.0 F) | tie | 111 years | 10 of 100 (Routine) |
| 17 August 2025 | Eureka, US | daily rain | 39.6 mm (1.6 in) | 14.2 mm (0.6 in) | 84 years | 48 of 100 (Notable) |
| 17 July 2025 | Eureka, US | daily low min | 6.1 C (43.0 F) | 0.6 C (1.1 F) | 114 years | 41 of 100 (Notable) |
| 16 July 2025 | Eureka, US | daily low max | 20.6 C (69.1 F) | 1.1 C (2.0 F) | 63 years | 30 of 100 (Routine) |
| 26 June 2025 | Eureka, US | daily low max | 17.2 C (63.0 F) | 1.1 C (2.0 F) | 56 years | 28 of 100 (Routine) |
| 22 May 2025 | Eureka, US | daily low max | 8.3 C (46.9 F) | 0.6 C (1.1 F) | 3 years | 10 of 100 (Routine) |
| 21 May 2025 | Eureka, US | daily low max | 6.1 C (43.0 F) | 2.8 C (5.0 F) | 62 years | 32 of 100 (Routine) |
| 20 May 2025 | Eureka, US | daily low max | 6.1 C (43.0 F) | 1.1 C (2.0 F) | 112 years | 41 of 100 (Notable) |
Climate Trend
109 complete years, 1909 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1909 | 5.1 C | -0.82 C |
| 1910 | 7.1 C | +1.13 C |
| 1911 | 5.8 C | -0.15 C |
| 1912 | 4.8 C | -1.14 C |
| 1913 | 6.0 C | +0.03 C |
| 1914 | 5.6 C | -0.30 C |
| 1915 | 4.6 C | -1.30 C |
| 1916 | 3.6 C | -2.28 C |
| 1917 | 3.0 C | -2.88 C |
| 1918 | 5.2 C | -0.71 C |
| 1919 | 5.1 C | -0.86 C |
| 1920 | 5.7 C | -0.27 C |
| 1921 | 6.9 C | +0.98 C |
| 1922 | 5.5 C | -0.43 C |
| 1923 | 6.1 C | +0.21 C |
| 1924 | 5.1 C | -0.80 C |
| 1925 | 6.1 C | +0.15 C |
| 1926 | 6.3 C | +0.38 C |
| 1927 | 4.7 C | -1.23 C |
| 1928 | 6.5 C | +0.59 C |
| 1929 | 4.8 C | -1.10 C |
| 1930 | 6.5 C | +0.61 C |
| 1931 | 8.3 C | +2.39 C |
| 1932 | 5.6 C | -0.33 C |
| 1933 | 7.1 C | +1.20 C |
| 1935 | 5.6 C | -0.31 C |
| 1936 | 5.0 C | -0.92 C |
| 1937 | 5.0 C | -0.89 C |
| 1938 | 6.6 C | +0.69 C |
| 1939 | 6.6 C | +0.68 C |
| 1940 | 6.1 C | +0.13 C |
| 1941 | 7.2 C | +1.27 C |
| 1942 | 6.4 C | +0.44 C |
| 1943 | 5.7 C | -0.27 C |
| 1944 | 6.3 C | +0.34 C |
| 1945 | 5.5 C | -0.41 C |
| 1946 | 6.6 C | +0.69 C |
| 1947 | 6.0 C | +0.05 C |
| 1948 | 5.9 C | -0.05 C |
| 1949 | 5.9 C | -0.01 C |
| 1950 | 3.5 C | -2.41 C |
| 1951 | 3.7 C | -2.26 C |
| 1952 | 6.1 C | +0.17 C |
| 1953 | 6.9 C | +0.97 C |
| 1954 | 6.9 C | +0.96 C |
| 1955 | 5.8 C | -0.14 C |
| 1956 | 5.7 C | -0.25 C |
| 1957 | 5.9 C | -0.01 C |
| 1958 | 6.2 C | +0.25 C |
| 1959 | 5.7 C | -0.19 C |
| 1960 | 5.2 C | -0.71 C |
| 1961 | 6.2 C | +0.25 C |
| 1962 | 5.6 C | -0.34 C |
| 1963 | 6.9 C | +0.98 C |
| 1964 | 5.8 C | -0.17 C |
| 1965 | 4.9 C | -1.07 C |
| 1966 | 4.9 C | -1.04 C |
| 1967 | 5.5 C | -0.43 C |
| 1968 | 5.4 C | -0.49 C |
| 1969 | 5.2 C | -0.77 C |
| 1970 | 5.0 C | -0.91 C |
| 1971 | 5.4 C | -0.50 C |
| 1972 | 4.8 C | -1.09 C |
| 1973 | 7.2 C | +1.26 C |
| 1974 | 6.5 C | +0.62 C |
| 1975 | 5.6 C | -0.29 C |
| 1976 | 6.7 C | +0.79 C |
| 1977 | 6.4 C | +0.52 C |
| 1978 | 4.3 C | -1.65 C |
| 1979 | 4.3 C | -1.61 C |
| 1980 | 6.5 C | +0.56 C |
| 1981 | 7.2 C | +1.30 C |
| 1982 | 4.7 C | -1.20 C |
| 1983 | 5.8 C | -0.11 C |
| 1984 | 6.0 C | +0.06 C |
| 1985 | 4.4 C | -1.53 C |
| 1987 | 8.3 C | +2.38 C |
| 1988 | 6.9 C | +0.94 C |
| 1989 | 5.3 C | -0.63 C |
| 1990 | 7.2 C | +1.28 C |
| 1991 | 7.1 C | +1.22 C |
| 1992 | 6.5 C | +0.53 C |
| 1994 | 5.3 C | -0.64 C |
| 1997 | 5.7 C | -0.22 C |
| 1998 | 7.7 C | +1.75 C |
| 1999 | 7.7 C | +1.76 C |
| 2000 | 6.4 C | +0.50 C |
| 2001 | 6.8 C | +0.89 C |
| 2002 | 7.0 C | +1.10 C |
| 2003 | 6.6 C | +0.67 C |
| 2004 | 5.7 C | -0.20 C |
| 2005 | 7.6 C | +1.67 C |
| 2006 | 8.2 C | +2.31 C |
| 2007 | 6.8 C | +0.92 C |
| 2009 | 4.9 C | -1.00 C |
| 2010 | 6.3 C | +0.34 C |
| 2011 | 5.7 C | -0.18 C |
| 2012 | 8.5 C | +2.58 C |
| 2014 | 5.2 C | -0.76 C |
| 2016 | 7.2 C | +1.27 C |
| 2017 | 6.0 C | +0.05 C |
| 2018 | 4.6 C | -1.31 C |
| 2019 | 3.4 C | -2.49 C |
| 2020 | 6.0 C | +0.12 C |
| 2021 | 7.3 C | +1.39 C |
| 2022 | 4.7 C | -1.23 C |
| 2023 | 5.9 C | -0.05 C |
| 2024 | 6.9 C | +0.97 C |
| 2025 | 6.0 C | +0.10 C |
The annual mean temperature here has risen by 0.07 C (0.01 to 0.13) per decade over 1909 to 2025. In Fahrenheit: 0.13 F (0.02 to 0.23) per decade. The slope is a straight line fitted to 109 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.07 C (0.01 to 0.13) per decade | 0.13 F (0.02 to 0.23) per decade | 1909 to 2025 | 109 | Rise |
| Mean daily maximum | -0.02 C (-0.09 to 0.04) per decade | -0.04 F (-0.16 to 0.08) per decade | 1909 to 2025 | 109 | Not clearly different from zero |
| Mean daily minimum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1909 to 2025 | 109 | 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
1877 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.6 C (114.1 F) | 1934 | 38.3 C (100.9 F) | 122 |
| Coldest night (TNn) | -42.8 C (-45.0 F) | 1917 | -33.3 C (-27.9 F) | 122 |
| Wettest day (Rx1day) | 170.9 mm (6.7 in) | 1964 | 43.8 mm (1.7 in) | 122 |
| Wettest five days (Rx5day) | 221.3 mm (8.7 in) | 1964 | 64.3 mm (2.5 in) | 121 |
| Longest dry spell (CDD) | 84 days | 1945 | 36 days | 122 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1877 | 2.2 C (36.0 F) |
| 1897 | 34.4 C (93.9 F) |
| 1898 | 37.8 C (100.0 F) |
| 1908 | 36.7 C (98.1 F) |
| 1909 | 36.1 C (97.0 F) |
| 1910 | 42.2 C (108.0 F) |
| 1911 | 38.3 C (100.9 F) |
| 1912 | 39.4 C (102.9 F) |
| 1913 | 39.4 C (102.9 F) |
| 1914 | 40.6 C (105.1 F) |
| 1915 | 32.2 C (90.0 F) |
| 1916 | 36.7 C (98.1 F) |
| 1917 | 43.9 C (111.0 F) |
| 1918 | 39.4 C (102.9 F) |
| 1919 | 37.2 C (99.0 F) |
| 1920 | 39.4 C (102.9 F) |
| 1921 | 39.4 C (102.9 F) |
| 1922 | 37.8 C (100.0 F) |
| 1923 | 33.9 C (93.0 F) |
| 1924 | 37.8 C (100.0 F) |
| 1925 | 40.0 C (104.0 F) |
| 1926 | 41.1 C (106.0 F) |
| 1927 | 35.6 C (96.1 F) |
| 1928 | 39.4 C (102.9 F) |
| 1929 | 39.4 C (102.9 F) |
| 1930 | 41.7 C (107.1 F) |
| 1931 | 42.2 C (108.0 F) |
| 1932 | 38.9 C (102.0 F) |
| 1933 | 41.1 C (106.0 F) |
| 1934 | 45.6 C (114.1 F) |
| 1935 | 41.1 C (106.0 F) |
| 1936 | 45.6 C (114.1 F) |
| 1937 | 39.4 C (102.9 F) |
| 1938 | 40.6 C (105.1 F) |
| 1939 | 36.7 C (98.1 F) |
| 1940 | 37.8 C (100.0 F) |
| 1941 | 42.2 C (108.0 F) |
| 1942 | 36.7 C (98.1 F) |
| 1943 | 38.3 C (100.9 F) |
| 1944 | 37.2 C (99.0 F) |
| 1945 | 40.0 C (104.0 F) |
| 1946 | 37.2 C (99.0 F) |
| 1947 | 42.2 C (108.0 F) |
| 1948 | 38.3 C (100.9 F) |
| 1949 | 41.7 C (107.1 F) |
| 1950 | 36.7 C (98.1 F) |
| 1951 | 36.7 C (98.1 F) |
| 1952 | 42.2 C (108.0 F) |
| 1953 | 36.7 C (98.1 F) |
| 1954 | 40.0 C (104.0 F) |
| 1955 | 38.3 C (100.9 F) |
| 1956 | 36.1 C (97.0 F) |
| 1957 | 35.0 C (95.0 F) |
| 1958 | 39.4 C (102.9 F) |
| 1959 | 40.6 C (105.1 F) |
| 1960 | 41.7 C (107.1 F) |
| 1961 | 38.9 C (102.0 F) |
| 1962 | 36.1 C (97.0 F) |
| 1963 | 38.9 C (102.0 F) |
| 1964 | 36.1 C (97.0 F) |
| 1965 | 38.3 C (100.9 F) |
| 1966 | 40.6 C (105.1 F) |
| 1967 | 37.8 C (100.0 F) |
| 1968 | 35.0 C (95.0 F) |
| 1969 | 38.3 C (100.9 F) |
| 1970 | 38.3 C (100.9 F) |
| 1971 | 40.0 C (104.0 F) |
| 1972 | 38.3 C (100.9 F) |
| 1973 | 41.7 C (107.1 F) |
| 1974 | 37.2 C (99.0 F) |
| 1975 | 40.6 C (105.1 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 41.7 C (107.1 F) |
| 1978 | 39.4 C (102.9 F) |
| 1979 | 35.0 C (95.0 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 36.7 C (98.1 F) |
| 1982 | 41.1 C (106.0 F) |
| 1983 | 39.4 C (102.9 F) |
| 1984 | 38.3 C (100.9 F) |
| 1985 | 40.6 C (105.1 F) |
| 1986 | 36.7 C (98.1 F) |
| 1987 | 40.0 C (104.0 F) |
| 1988 | 42.8 C (109.0 F) |
| 1989 | 42.2 C (108.0 F) |
| 1990 | 33.9 C (93.0 F) |
| 1991 | 38.3 C (100.9 F) |
| 1992 | 36.7 C (98.1 F) |
| 1993 | 32.2 C (90.0 F) |
| 1994 | 33.3 C (91.9 F) |
| 1995 | 33.9 C (93.0 F) |
| 1996 | 36.1 C (97.0 F) |
| 1997 | 36.1 C (97.0 F) |
| 1998 | 36.7 C (98.1 F) |
| 1999 | 37.2 C (99.0 F) |
| 2000 | 35.0 C (95.0 F) |
| 2001 | 38.3 C (100.9 F) |
| 2002 | 41.1 C (106.0 F) |
| 2003 | 41.7 C (107.1 F) |
| 2004 | 33.9 C (93.0 F) |
| 2005 | 38.3 C (100.9 F) |
| 2006 | 42.8 C (109.0 F) |
| 2007 | 36.7 C (98.1 F) |
| 2008 | 33.9 C (93.0 F) |
| 2009 | 34.4 C (93.9 F) |
| 2010 | 39.4 C (102.9 F) |
| 2011 | 36.7 C (98.1 F) |
| 2012 | 38.3 C (100.9 F) |
| 2013 | 38.3 C (100.9 F) |
| 2014 | 36.1 C (97.0 F) |
| 2015 | 37.2 C (99.0 F) |
| 2016 | 35.6 C (96.1 F) |
| 2017 | 37.8 C (100.0 F) |
| 2018 | 36.7 C (98.1 F) |
| 2019 | 32.2 C (90.0 F) |
| 2020 | 35.0 C (95.0 F) |
| 2021 | 38.3 C (100.9 F) |
| 2022 | 36.1 C (97.0 F) |
| 2023 | 36.1 C (97.0 F) |
| 2024 | 34.4 C (93.9 F) |
| 2025 | 35.6 C (96.1 F) |
| 2026 | 38.3 C (100.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1877 | -5.0 C (23.0 F) |
| 1897 | -31.1 C (-24.0 F) |
| 1898 | -30.6 C (-23.1 F) |
| 1908 | -28.9 C (-20.0 F) |
| 1909 | -37.8 C (-36.0 F) |
| 1910 | -33.9 C (-29.0 F) |
| 1911 | -32.2 C (-26.0 F) |
| 1912 | -40.0 C (-40.0 F) |
| 1913 | -37.8 C (-36.0 F) |
| 1914 | -35.6 C (-32.1 F) |
| 1915 | -40.0 C (-40.0 F) |
| 1916 | -42.2 C (-44.0 F) |
| 1917 | -42.8 C (-45.0 F) |
| 1918 | -37.2 C (-35.0 F) |
| 1919 | -37.2 C (-35.0 F) |
| 1920 | -34.4 C (-29.9 F) |
| 1921 | -33.3 C (-27.9 F) |
| 1922 | -34.4 C (-29.9 F) |
| 1923 | -30.0 C (-22.0 F) |
| 1924 | -36.7 C (-34.1 F) |
| 1925 | -32.8 C (-27.0 F) |
| 1926 | -31.7 C (-25.1 F) |
| 1927 | -34.4 C (-29.9 F) |
| 1928 | -35.6 C (-32.1 F) |
| 1929 | -37.8 C (-36.0 F) |
| 1930 | -35.0 C (-31.0 F) |
| 1931 | -26.1 C (-15.0 F) |
| 1932 | -33.9 C (-29.0 F) |
| 1933 | -37.2 C (-35.0 F) |
| 1934 | -32.2 C (-26.0 F) |
| 1935 | -35.6 C (-32.1 F) |
| 1936 | -42.2 C (-44.0 F) |
| 1937 | -35.6 C (-32.1 F) |
| 1938 | -32.2 C (-26.0 F) |
| 1939 | -35.0 C (-31.0 F) |
| 1940 | -32.2 C (-26.0 F) |
| 1941 | -30.6 C (-23.1 F) |
| 1942 | -33.9 C (-29.0 F) |
| 1943 | -38.9 C (-38.0 F) |
| 1944 | -35.6 C (-32.1 F) |
| 1945 | -31.1 C (-24.0 F) |
| 1946 | -31.1 C (-24.0 F) |
| 1947 | -32.2 C (-26.0 F) |
| 1948 | -32.8 C (-27.0 F) |
| 1949 | -36.1 C (-33.0 F) |
| 1950 | -35.6 C (-32.1 F) |
| 1951 | -36.1 C (-33.0 F) |
| 1952 | -28.9 C (-20.0 F) |
| 1953 | -27.2 C (-17.0 F) |
| 1954 | -36.1 C (-33.0 F) |
| 1955 | -33.3 C (-27.9 F) |
| 1956 | -31.7 C (-25.1 F) |
| 1957 | -33.3 C (-27.9 F) |
| 1958 | -35.6 C (-32.1 F) |
| 1959 | -33.3 C (-27.9 F) |
| 1960 | -33.3 C (-27.9 F) |
| 1961 | -35.0 C (-31.0 F) |
| 1962 | -34.4 C (-29.9 F) |
| 1963 | -34.4 C (-29.9 F) |
| 1964 | -31.7 C (-25.1 F) |
| 1965 | -32.2 C (-26.0 F) |
| 1966 | -36.1 C (-33.0 F) |
| 1967 | -38.9 C (-38.0 F) |
| 1968 | -36.1 C (-33.0 F) |
| 1969 | -30.0 C (-22.0 F) |
| 1970 | -35.0 C (-31.0 F) |
| 1971 | -34.4 C (-29.9 F) |
| 1972 | -38.3 C (-36.9 F) |
| 1973 | -32.2 C (-26.0 F) |
| 1974 | -31.1 C (-24.0 F) |
| 1975 | -30.6 C (-23.1 F) |
| 1976 | -33.3 C (-27.9 F) |
| 1977 | -33.9 C (-29.0 F) |
| 1978 | -33.3 C (-27.9 F) |
| 1979 | -32.2 C (-26.0 F) |
| 1980 | -31.7 C (-25.1 F) |
| 1981 | -31.1 C (-24.0 F) |
| 1982 | -36.1 C (-33.0 F) |
| 1983 | -39.4 C (-38.9 F) |
| 1984 | -35.0 C (-31.0 F) |
| 1985 | -35.0 C (-31.0 F) |
| 1986 | -30.0 C (-22.0 F) |
| 1987 | -26.1 C (-15.0 F) |
| 1988 | -36.1 C (-33.0 F) |
| 1989 | -36.7 C (-34.1 F) |
| 1990 | -37.8 C (-36.0 F) |
| 1991 | -28.3 C (-18.9 F) |
| 1992 | -28.9 C (-20.0 F) |
| 1993 | -31.7 C (-25.1 F) |
| 1994 | -40.6 C (-41.1 F) |
| 1995 | -30.6 C (-23.1 F) |
| 1996 | -36.7 C (-34.1 F) |
| 1997 | -31.1 C (-24.0 F) |
| 1998 | -31.1 C (-24.0 F) |
| 1999 | -32.2 C (-26.0 F) |
| 2000 | -31.7 C (-25.1 F) |
| 2001 | -28.3 C (-18.9 F) |
| 2002 | -27.2 C (-17.0 F) |
| 2003 | -30.6 C (-23.1 F) |
| 2004 | -30.0 C (-22.0 F) |
| 2005 | -35.0 C (-31.0 F) |
| 2006 | -27.8 C (-18.0 F) |
| 2007 | -32.8 C (-27.0 F) |
| 2008 | -31.1 C (-24.0 F) |
| 2009 | -38.9 C (-38.0 F) |
| 2010 | -32.8 C (-27.0 F) |
| 2011 | -32.8 C (-27.0 F) |
| 2012 | -23.9 C (-11.0 F) |
| 2013 | -31.7 C (-25.1 F) |
| 2014 | -30.0 C (-22.0 F) |
| 2015 | -25.0 C (-13.0 F) |
| 2016 | -36.7 C (-34.1 F) |
| 2017 | -33.9 C (-29.0 F) |
| 2018 | -34.4 C (-29.9 F) |
| 2019 | -38.3 C (-36.9 F) |
| 2020 | -31.1 C (-24.0 F) |
| 2021 | -34.4 C (-29.9 F) |
| 2022 | -31.1 C (-24.0 F) |
| 2023 | -32.2 C (-26.0 F) |
| 2024 | -32.8 C (-27.0 F) |
| 2025 | -37.8 C (-36.0 F) |
| 2026 | -30.0 C (-22.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1877 | 0.0 mm (0.00 in) |
| 1897 | 10.4 mm (0.4 in) |
| 1898 | 15.7 mm (0.6 in) |
| 1908 | 24.4 mm (1.0 in) |
| 1909 | 43.9 mm (1.7 in) |
| 1910 | 49.3 mm (1.9 in) |
| 1911 | 29.2 mm (1.1 in) |
| 1912 | 29.5 mm (1.2 in) |
| 1913 | 31.0 mm (1.2 in) |
| 1914 | 24.1 mm (0.9 in) |
| 1915 | 54.6 mm (2.1 in) |
| 1916 | 45.2 mm (1.8 in) |
| 1917 | 20.3 mm (0.8 in) |
| 1918 | 18.0 mm (0.7 in) |
| 1919 | 45.0 mm (1.8 in) |
| 1920 | 34.0 mm (1.3 in) |
| 1921 | 52.1 mm (2.1 in) |
| 1922 | 37.8 mm (1.5 in) |
| 1923 | 38.1 mm (1.5 in) |
| 1924 | 38.4 mm (1.5 in) |
| 1925 | 30.2 mm (1.2 in) |
| 1926 | 35.8 mm (1.4 in) |
| 1927 | 88.1 mm (3.5 in) |
| 1928 | 48.5 mm (1.9 in) |
| 1929 | 37.1 mm (1.5 in) |
| 1930 | 36.1 mm (1.4 in) |
| 1931 | 70.1 mm (2.8 in) |
| 1932 | 72.9 mm (2.9 in) |
| 1933 | 44.2 mm (1.7 in) |
| 1934 | 26.4 mm (1.0 in) |
| 1935 | 35.1 mm (1.4 in) |
| 1936 | 17.3 mm (0.7 in) |
| 1937 | 47.5 mm (1.9 in) |
| 1938 | 30.2 mm (1.2 in) |
| 1939 | 58.9 mm (2.3 in) |
| 1940 | 51.1 mm (2.0 in) |
| 1941 | 75.7 mm (3.0 in) |
| 1942 | 89.9 mm (3.5 in) |
| 1943 | 39.4 mm (1.6 in) |
| 1944 | 27.9 mm (1.1 in) |
| 1945 | 29.2 mm (1.1 in) |
| 1946 | 54.9 mm (2.2 in) |
| 1947 | 50.3 mm (2.0 in) |
| 1948 | 31.2 mm (1.2 in) |
| 1949 | 62.2 mm (2.4 in) |
| 1950 | 35.1 mm (1.4 in) |
| 1951 | 54.1 mm (2.1 in) |
| 1952 | 33.5 mm (1.3 in) |
| 1953 | 62.0 mm (2.4 in) |
| 1954 | 28.2 mm (1.1 in) |
| 1955 | 33.0 mm (1.3 in) |
| 1956 | 51.8 mm (2.0 in) |
| 1957 | 36.1 mm (1.4 in) |
| 1958 | 53.3 mm (2.1 in) |
| 1959 | 33.0 mm (1.3 in) |
| 1960 | 76.7 mm (3.0 in) |
| 1961 | 44.2 mm (1.7 in) |
| 1962 | 66.0 mm (2.6 in) |
| 1963 | 33.5 mm (1.3 in) |
| 1964 | 170.9 mm (6.7 in) |
| 1965 | 40.4 mm (1.6 in) |
| 1966 | 43.2 mm (1.7 in) |
| 1967 | 51.1 mm (2.0 in) |
| 1968 | 47.0 mm (1.9 in) |
| 1969 | 71.9 mm (2.8 in) |
| 1970 | 34.8 mm (1.4 in) |
| 1971 | 50.3 mm (2.0 in) |
| 1972 | 50.8 mm (2.0 in) |
| 1973 | 48.3 mm (1.9 in) |
| 1974 | 29.7 mm (1.2 in) |
| 1975 | 35.1 mm (1.4 in) |
| 1976 | 64.0 mm (2.5 in) |
| 1977 | 35.1 mm (1.4 in) |
| 1978 | 58.7 mm (2.3 in) |
| 1979 | 40.6 mm (1.6 in) |
| 1980 | 57.2 mm (2.3 in) |
| 1981 | 65.3 mm (2.6 in) |
| 1982 | 74.2 mm (2.9 in) |
| 1983 | 42.9 mm (1.7 in) |
| 1984 | 34.8 mm (1.4 in) |
| 1985 | 29.0 mm (1.1 in) |
| 1986 | 52.3 mm (2.1 in) |
| 1987 | 54.9 mm (2.2 in) |
| 1988 | 24.4 mm (1.0 in) |
| 1989 | 62.0 mm (2.4 in) |
| 1990 | 57.9 mm (2.3 in) |
| 1991 | 60.7 mm (2.4 in) |
| 1992 | 51.3 mm (2.0 in) |
| 1993 | 55.9 mm (2.2 in) |
| 1994 | 77.5 mm (3.1 in) |
| 1995 | 45.7 mm (1.8 in) |
| 1996 | 40.1 mm (1.6 in) |
| 1997 | 44.2 mm (1.7 in) |
| 1998 | 58.7 mm (2.3 in) |
| 1999 | 56.9 mm (2.2 in) |
| 2000 | 48.0 mm (1.9 in) |
| 2001 | 47.8 mm (1.9 in) |
| 2002 | 46.2 mm (1.8 in) |
| 2003 | 43.7 mm (1.7 in) |
| 2004 | 37.8 mm (1.5 in) |
| 2005 | 69.9 mm (2.8 in) |
| 2006 | 31.8 mm (1.3 in) |
| 2007 | 108.0 mm (4.3 in) |
| 2008 | 80.0 mm (3.1 in) |
| 2009 | 36.3 mm (1.4 in) |
| 2010 | 42.7 mm (1.7 in) |
| 2011 | 53.3 mm (2.1 in) |
| 2012 | 26.2 mm (1.0 in) |
| 2013 | 52.1 mm (2.1 in) |
| 2014 | 45.0 mm (1.8 in) |
| 2015 | 41.1 mm (1.6 in) |
| 2016 | 39.6 mm (1.6 in) |
| 2017 | 38.6 mm (1.5 in) |
| 2018 | 100.6 mm (4.0 in) |
| 2019 | 38.6 mm (1.5 in) |
| 2020 | 41.1 mm (1.6 in) |
| 2021 | 28.4 mm (1.1 in) |
| 2022 | 42.9 mm (1.7 in) |
| 2023 | 61.7 mm (2.4 in) |
| 2024 | 33.8 mm (1.3 in) |
| 2025 | 39.6 mm (1.6 in) |
| 2026 | 42.9 mm (1.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1877 | n/a |
| 1897 | 10.4 mm (0.4 in) |
| 1898 | 22.2 mm (0.9 in) |
| 1908 | 45.3 mm (1.8 in) |
| 1909 | 60.2 mm (2.4 in) |
| 1910 | 59.5 mm (2.3 in) |
| 1911 | 51.6 mm (2.0 in) |
| 1912 | 43.0 mm (1.7 in) |
| 1913 | 32.3 mm (1.3 in) |
| 1914 | 38.8 mm (1.5 in) |
| 1915 | 64.3 mm (2.5 in) |
| 1916 | 58.6 mm (2.3 in) |
| 1917 | 32.0 mm (1.3 in) |
| 1918 | 34.6 mm (1.4 in) |
| 1919 | 48.9 mm (1.9 in) |
| 1920 | 49.2 mm (1.9 in) |
| 1921 | 73.8 mm (2.9 in) |
| 1922 | 58.9 mm (2.3 in) |
| 1923 | 59.7 mm (2.4 in) |
| 1924 | 67.8 mm (2.7 in) |
| 1925 | 63.5 mm (2.5 in) |
| 1926 | 67.0 mm (2.6 in) |
| 1927 | 122.6 mm (4.8 in) |
| 1928 | 89.6 mm (3.5 in) |
| 1929 | 57.7 mm (2.3 in) |
| 1930 | 89.7 mm (3.5 in) |
| 1931 | 74.7 mm (2.9 in) |
| 1932 | 82.0 mm (3.2 in) |
| 1933 | 80.5 mm (3.2 in) |
| 1934 | 39.1 mm (1.5 in) |
| 1935 | 62.2 mm (2.4 in) |
| 1936 | 18.6 mm (0.7 in) |
| 1937 | 67.1 mm (2.6 in) |
| 1938 | 43.9 mm (1.7 in) |
| 1939 | 61.5 mm (2.4 in) |
| 1940 | 59.8 mm (2.4 in) |
| 1941 | 114.6 mm (4.5 in) |
| 1942 | 106.1 mm (4.2 in) |
| 1943 | 78.8 mm (3.1 in) |
| 1944 | 32.5 mm (1.3 in) |
| 1945 | 51.6 mm (2.0 in) |
| 1946 | 115.1 mm (4.5 in) |
| 1947 | 63.3 mm (2.5 in) |
| 1948 | 46.7 mm (1.8 in) |
| 1949 | 88.9 mm (3.5 in) |
| 1950 | 71.7 mm (2.8 in) |
| 1951 | 72.7 mm (2.9 in) |
| 1952 | 53.1 mm (2.1 in) |
| 1953 | 103.1 mm (4.1 in) |
| 1954 | 61.2 mm (2.4 in) |
| 1955 | 52.3 mm (2.1 in) |
| 1956 | 60.4 mm (2.4 in) |
| 1957 | 61.7 mm (2.4 in) |
| 1958 | 61.3 mm (2.4 in) |
| 1959 | 58.1 mm (2.3 in) |
| 1960 | 77.0 mm (3.0 in) |
| 1961 | 71.2 mm (2.8 in) |
| 1962 | 108.7 mm (4.3 in) |
| 1963 | 53.7 mm (2.1 in) |
| 1964 | 221.3 mm (8.7 in) |
| 1965 | 63.6 mm (2.5 in) |
| 1966 | 50.6 mm (2.0 in) |
| 1967 | 67.3 mm (2.6 in) |
| 1968 | 90.8 mm (3.6 in) |
| 1969 | 81.8 mm (3.2 in) |
| 1970 | 74.9 mm (2.9 in) |
| 1971 | 58.7 mm (2.3 in) |
| 1972 | 64.3 mm (2.5 in) |
| 1973 | 71.8 mm (2.8 in) |
| 1974 | 31.7 mm (1.2 in) |
| 1975 | 45.8 mm (1.8 in) |
| 1976 | 66.3 mm (2.6 in) |
| 1977 | 43.0 mm (1.7 in) |
| 1978 | 88.2 mm (3.5 in) |
| 1979 | 71.9 mm (2.8 in) |
| 1980 | 72.9 mm (2.9 in) |
| 1981 | 119.7 mm (4.7 in) |
| 1982 | 131.0 mm (5.2 in) |
| 1983 | 58.1 mm (2.3 in) |
| 1984 | 63.5 mm (2.5 in) |
| 1985 | 51.4 mm (2.0 in) |
| 1986 | 86.1 mm (3.4 in) |
| 1987 | 67.9 mm (2.7 in) |
| 1988 | 33.0 mm (1.3 in) |
| 1989 | 115.1 mm (4.5 in) |
| 1990 | 84.1 mm (3.3 in) |
| 1991 | 80.2 mm (3.2 in) |
| 1992 | 78.2 mm (3.1 in) |
| 1993 | 100.4 mm (4.0 in) |
| 1994 | 110.8 mm (4.4 in) |
| 1995 | 90.4 mm (3.6 in) |
| 1996 | 80.6 mm (3.2 in) |
| 1997 | 60.7 mm (2.4 in) |
| 1998 | 73.2 mm (2.9 in) |
| 1999 | 69.1 mm (2.7 in) |
| 2000 | 53.0 mm (2.1 in) |
| 2001 | 61.0 mm (2.4 in) |
| 2002 | 62.5 mm (2.5 in) |
| 2003 | 54.2 mm (2.1 in) |
| 2004 | 55.9 mm (2.2 in) |
| 2005 | 99.4 mm (3.9 in) |
| 2006 | 36.6 mm (1.4 in) |
| 2007 | 158.0 mm (6.2 in) |
| 2008 | 84.6 mm (3.3 in) |
| 2009 | 67.5 mm (2.7 in) |
| 2010 | 68.4 mm (2.7 in) |
| 2011 | 84.1 mm (3.3 in) |
| 2012 | 38.4 mm (1.5 in) |
| 2013 | 107.3 mm (4.2 in) |
| 2014 | 69.6 mm (2.7 in) |
| 2015 | 70.6 mm (2.8 in) |
| 2016 | 59.7 mm (2.4 in) |
| 2017 | 56.5 mm (2.2 in) |
| 2018 | 100.6 mm (4.0 in) |
| 2019 | 64.5 mm (2.5 in) |
| 2020 | 48.0 mm (1.9 in) |
| 2021 | 56.8 mm (2.2 in) |
| 2022 | 62.5 mm (2.5 in) |
| 2023 | 119.4 mm (4.7 in) |
| 2024 | 50.8 mm (2.0 in) |
| 2025 | 86.7 mm (3.4 in) |
| 2026 | 75.4 mm (3.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1877 | 1 day |
| 1897 | 37 days |
| 1898 | 44 days |
| 1908 | 28 days |
| 1909 | 37 days |
| 1910 | 39 days |
| 1911 | 41 days |
| 1912 | 49 days |
| 1913 | 42 days |
| 1914 | 77 days |
| 1915 | 31 days |
| 1916 | 34 days |
| 1917 | 36 days |
| 1918 | 33 days |
| 1919 | 40 days |
| 1920 | 44 days |
| 1921 | 27 days |
| 1922 | 36 days |
| 1923 | 44 days |
| 1924 | 38 days |
| 1925 | 42 days |
| 1926 | 34 days |
| 1927 | 27 days |
| 1928 | 29 days |
| 1929 | 25 days |
| 1930 | 42 days |
| 1931 | 34 days |
| 1932 | 42 days |
| 1933 | 41 days |
| 1934 | 61 days |
| 1935 | 38 days |
| 1936 | 42 days |
| 1937 | 39 days |
| 1938 | 29 days |
| 1939 | 58 days |
| 1940 | 41 days |
| 1941 | 51 days |
| 1942 | 71 days |
| 1943 | 44 days |
| 1944 | 35 days |
| 1945 | 84 days |
| 1946 | 23 days |
| 1947 | 61 days |
| 1948 | 39 days |
| 1949 | 50 days |
| 1950 | 25 days |
| 1951 | 32 days |
| 1952 | 46 days |
| 1953 | 22 days |
| 1954 | 34 days |
| 1955 | 38 days |
| 1956 | 29 days |
| 1957 | 30 days |
| 1958 | 24 days |
| 1959 | 60 days |
| 1960 | 30 days |
| 1961 | 52 days |
| 1962 | 26 days |
| 1963 | 36 days |
| 1964 | 65 days |
| 1965 | 37 days |
| 1966 | 39 days |
| 1967 | 47 days |
| 1968 | 49 days |
| 1969 | 40 days |
| 1970 | 21 days |
| 1971 | 74 days |
| 1972 | 32 days |
| 1973 | 32 days |
| 1974 | 48 days |
| 1975 | 34 days |
| 1976 | 34 days |
| 1977 | 27 days |
| 1978 | 35 days |
| 1979 | 27 days |
| 1980 | 49 days |
| 1981 | 30 days |
| 1982 | 29 days |
| 1983 | 41 days |
| 1984 | 27 days |
| 1985 | 37 days |
| 1986 | 31 days |
| 1987 | 37 days |
| 1988 | 44 days |
| 1989 | 33 days |
| 1990 | 46 days |
| 1991 | 44 days |
| 1992 | 29 days |
| 1993 | 24 days |
| 1994 | 24 days |
| 1995 | 28 days |
| 1996 | 19 days |
| 1997 | 40 days |
| 1998 | 30 days |
| 1999 | 34 days |
| 2000 | 28 days |
| 2001 | 42 days |
| 2002 | 34 days |
| 2003 | 31 days |
| 2004 | 22 days |
| 2005 | 38 days |
| 2006 | 72 days |
| 2007 | 55 days |
| 2008 | 36 days |
| 2009 | 37 days |
| 2010 | 29 days |
| 2011 | 56 days |
| 2012 | 54 days |
| 2013 | 31 days |
| 2014 | 39 days |
| 2015 | 31 days |
| 2016 | 26 days |
| 2017 | 30 days |
| 2018 | 28 days |
| 2019 | 27 days |
| 2020 | 58 days |
| 2021 | 56 days |
| 2022 | 37 days |
| 2023 | 32 days |
| 2024 | 32 days |
| 2025 | 34 days |
| 2026 | 27 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
109 years with a frostAcross 109 years with a frost, the median last spring frost at Eureka falls on 15 May and the median first autumn frost on 22 September, which leaves a median of 132 days between them.
In 1990 to 2025 the median growing season was 141 days. That is 17 days more than in 1909 to 1939.
Fitted over all years, the growing season changes by +2.6 days per decade at this station.
| Measure | Median, all years | Earliest period (1909 to 1939) | Recent period (1990 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 15 May | 19 May | 12 May | 7 days earlier | -1.2 days per decade |
| First autumn frost | 22 September | 20 September | 27 September | 7 days later | +1.4 days per decade |
| Growing days | 132 days | 124 days | 141 days | 17 days more | +2.6 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
116 years, 1909 to 2025A day with at least 43.9 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 116.2 mm (4.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 43.9 mm (1.7 in) | |
| 5 years | 60.2 mm (2.4 in) | |
| 10 years | 72.1 mm (2.8 in) | |
| 25 years | 88.6 mm (3.5 in) | |
| 50 years | 101.9 mm (4.0 in) | |
| 100 years | 116.2 mm (4.6 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 116 years of values from 1909 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: 170.9 mm (6.7 in) in 1964; 108.0 mm (4.3 in) in 2007; 100.6 mm (4.0 in) in 2018.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Eureka, at 1978. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1978 ran 0.2 C (0.4 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1978 | -0.2 | -0.4 | 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
2009 to 2025 against 1961 to 1990Over 2009 to 2025, Eureka had a mean temperature of 5.9 C (42.6 F) and 481.7 mm (19.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Waubay Natl Wild Life (United States, 183 km away), Watertown Rgnl AP (United States, 216 km away) and Flandreau (United States, 305 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Waubay Natl Wild Life | United States | 183 km (114 mi) | 6.1 C (42.9 F) | 516.5 mm (20.3 in) | 0.94 |
| Watertown Rgnl AP | United States | 216 km (134 mi) | 6.0 C (42.7 F) | 563.9 mm (22.2 in) | 0.94 |
| Flandreau | United States | 305 km (190 mi) | 6.5 C (43.6 F) | 547.9 mm (21.6 in) | 0.98 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-16).