Rockwell City Weather Records (USC00137161)
Record envelope, standing records and threshold days for Rockwell City (USC00137161), Iowa, United States, with 133 years of record.
Key Facts for Rockwell City
- Rockwell City (USC00137161) is a weather station in Iowa, United States at 42.40 latitude and -94.63 longitude, 370 m (1,214 ft) above sea level.
- The station reports from 1894 to 2026, 133 years of record.
- 1,464 records set at Rockwell City still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Rockwell City set a daily record high maximum temperature of 30.6 C (87.1 F) on 31 March 2026.
About the Station
- Location: Iowa, United States, 42.40 latitude, -94.63 longitude.
- Elevation: 370 m (1,214 ft).
- Period of record: 1894 to 2026, 133 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
6 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 21.1 C (70.0 F) | -37.2 C (-35.0 F) | 13.9 C (57.0 F) | -26.7 C (-16.1 F) |
| Feb | 21.1 C (70.0 F) | -36.1 C (-33.0 F) | 18.9 C (66.0 F) | -19.4 C (-2.9 F) |
| Mar | 32.8 C (91.0 F) | -30.0 C (-22.0 F) | 32.8 C (91.0 F) | -16.1 C (3.0 F) |
| Apr | 36.1 C (97.0 F) | -15.6 C (3.9 F) | 31.1 C (88.0 F) | -3.3 C (26.1 F) |
| May | 41.1 C (106.0 F) | -8.3 C (17.1 F) | 33.3 C (91.9 F) | 0.0 C (32.0 F) |
| Jun | 40.6 C (105.1 F) | 1.1 C (34.0 F) | 35.0 C (95.0 F) | 11.7 C (53.1 F) |
| Jul | 42.8 C (109.0 F) | 5.6 C (42.1 F) | 36.7 C (98.1 F) | 12.2 C (54.0 F) |
| Aug | 43.3 C (109.9 F) | 2.2 C (36.0 F) | 32.8 C (91.0 F) | 11.7 C (53.1 F) |
| Sep | 38.9 C (102.0 F) | -6.7 C (19.9 F) | n/a | n/a |
| Oct | 34.4 C (93.9 F) | -19.4 C (-2.9 F) | n/a | n/a |
| Nov | 26.7 C (80.1 F) | -26.7 C (-16.1 F) | n/a | n/a |
| Dec | 21.1 C (70.0 F) | -35.6 C (-32.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1894 | 7 |
| 1895 | 1 |
| 1897 | 25 |
| 1898 | 13 |
| 1899 | 17 |
| 1900 | 5 |
| 1901 | 14 |
| 1902 | 13 |
| 1903 | 6 |
| 1904 | 10 |
| 1905 | 14 |
| 1906 | 9 |
| 1907 | 14 |
| 1908 | 15 |
| 1909 | 21 |
| 1910 | 9 |
| 1911 | 12 |
| 1912 | 10 |
| 1913 | 8 |
| 1914 | 7 |
| 1915 | 18 |
| 1916 | 11 |
| 1917 | 18 |
| 1918 | 12 |
| 1919 | 11 |
| 1920 | 7 |
| 1921 | 3 |
| 1922 | 3 |
| 1923 | 14 |
| 1924 | 10 |
| 1925 | 17 |
| 1926 | 7 |
| 1927 | 11 |
| 1928 | 13 |
| 1929 | 9 |
| 1930 | 19 |
| 1931 | 18 |
| 1932 | 10 |
| 1933 | 15 |
| 1934 | 37 |
| 1935 | 9 |
| 1936 | 44 |
| 1937 | 18 |
| 1938 | 7 |
| 1939 | 21 |
| 1940 | 8 |
| 1941 | 15 |
| 1942 | 15 |
| 1943 | 7 |
| 1944 | 16 |
| 1945 | 11 |
| 1946 | 13 |
| 1947 | 23 |
| 1948 | 12 |
| 1949 | 5 |
| 1950 | 12 |
| 1951 | 10 |
| 1952 | 9 |
| 1953 | 6 |
| 1954 | 7 |
| 1955 | 18 |
| 1956 | 7 |
| 1957 | 3 |
| 1958 | 7 |
| 1959 | 16 |
| 1960 | 9 |
| 1961 | 4 |
| 1962 | 17 |
| 1963 | 15 |
| 1964 | 7 |
| 1965 | 14 |
| 1966 | 15 |
| 1967 | 9 |
| 1968 | 12 |
| 1969 | 8 |
| 1970 | 8 |
| 1971 | 9 |
| 1972 | 12 |
| 1973 | 5 |
| 1974 | 10 |
| 1975 | 5 |
| 1976 | 12 |
| 1977 | 13 |
| 1978 | 2 |
| 1979 | 6 |
| 1980 | 6 |
| 1981 | 11 |
| 1982 | 4 |
| 1983 | 16 |
| 1984 | 6 |
| 1985 | 14 |
| 1986 | 9 |
| 1987 | 17 |
| 1988 | 10 |
| 1989 | 14 |
| 1990 | 13 |
| 1991 | 19 |
| 1992 | 9 |
| 1993 | 6 |
| 1994 | 7 |
| 1995 | 8 |
| 1996 | 7 |
| 1997 | 12 |
| 1998 | 13 |
| 1999 | 6 |
| 2000 | 15 |
| 2001 | 14 |
| 2002 | 9 |
| 2003 | 8 |
| 2004 | 7 |
| 2005 | 10 |
| 2006 | 7 |
| 2007 | 3 |
| 2008 | 5 |
| 2009 | 10 |
| 2010 | 4 |
| 2011 | 8 |
| 2012 | 20 |
| 2013 | 8 |
| 2014 | 12 |
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 10 |
| 2018 | 16 |
| 2019 | 14 |
| 2020 | 14 |
| 2021 | 15 |
| 2022 | 12 |
| 2023 | 4 |
| 2025 | 10 |
| 2026 | 6 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1930-07-27 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 1930-08-03 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
| 1934-08-05 | Record high maximum temperature | Record high maximum temperature 42.8 C (109.0 F) |
| 1936-01-23 | Record snow depth | Record snow depth 381.0 cm (150.0 in) |
| 1936-02-23 | Record snow depth | Record snow depth 406.4 cm (160.0 in) |
| 1936-08-18 | Record high maximum temperature | Record high maximum temperature 43.3 C (109.9 F) |
| 1979-07-23 | Record daily precipitation | Record daily precipitation 153.9 mm (6.1 in) |
| 1987-06-15 | Record high minimum temperature | Record high minimum temperature 27.8 C (82.0 F) |
Wettest Day of Each Month
Jul: 153.9 mm (6.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 33.0 mm (1.3 in) | 5 January 1932 |
| Feb | 40.1 mm (1.6 in) | 13 February 1915 |
| Mar | 51.8 mm (2.0 in) | 13 March 1990 |
| Apr | 81.0 mm (3.2 in) | 21 April 1954 |
| May | 149.1 mm (5.9 in) | 5 May 1982 |
| Jun | 127.3 mm (5.0 in) | 21 June 1954 |
| Jul | 153.9 mm (6.1 in) | 23 July 1979 |
| Aug | 134.4 mm (5.3 in) | 20 August 2007 |
| Sep | 133.4 mm (5.3 in) | 10 September 1911 |
| Oct | 64.3 mm (2.5 in) | 8 October 1970 |
| Nov | 88.9 mm (3.5 in) | 13 November 1909 |
| Dec | 61.7 mm (2.4 in) | 14 December 2015 |
Period of Record Coverage
1894 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1894 | 100 | 27% | No |
| 1895 | 30 | 8% | No |
| 1897 | 321 | 88% | No |
| 1898 | 356 | 98% | Yes |
| 1899 | 360 | 99% | Yes |
| 1900 | 362 | 99% | Yes |
| 1901 | 344 | 94% | Yes |
| 1902 | 340 | 93% | Yes |
| 1903 | 358 | 98% | Yes |
| 1904 | 361 | 99% | Yes |
| 1905 | 362 | 99% | Yes |
| 1906 | 333 | 91% | Yes |
| 1907 | 365 | 100% | Yes |
| 1908 | 365 | 100% | Yes |
| 1909 | 364 | 100% | Yes |
| 1910 | 364 | 100% | Yes |
| 1911 | 363 | 99% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 334 | 92% | Yes |
| 1915 | 364 | 100% | Yes |
| 1916 | 365 | 100% | Yes |
| 1917 | 360 | 99% | Yes |
| 1918 | 349 | 96% | Yes |
| 1919 | 332 | 91% | Yes |
| 1920 | 342 | 93% | Yes |
| 1921 | 230 | 63% | No |
| 1922 | 250 | 68% | No |
| 1923 | 346 | 95% | Yes |
| 1924 | 254 | 69% | No |
| 1925 | 249 | 68% | No |
| 1926 | 322 | 88% | No |
| 1927 | 275 | 75% | No |
| 1928 | 308 | 84% | No |
| 1929 | 223 | 61% | No |
| 1930 | 304 | 83% | No |
| 1931 | 364 | 100% | Yes |
| 1932 | 337 | 92% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 364 | 100% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 363 | 99% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 363 | 99% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 357 | 98% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 355 | 97% | Yes |
| 1995 | 349 | 96% | Yes |
| 1996 | 357 | 98% | Yes |
| 1997 | 357 | 98% | Yes |
| 1998 | 327 | 90% | No |
| 1999 | 338 | 93% | Yes |
| 2000 | 349 | 95% | Yes |
| 2001 | 342 | 94% | Yes |
| 2002 | 350 | 96% | Yes |
| 2003 | 350 | 96% | Yes |
| 2004 | 360 | 98% | Yes |
| 2005 | 361 | 99% | Yes |
| 2006 | 347 | 95% | Yes |
| 2007 | 363 | 99% | Yes |
| 2008 | 363 | 99% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 331 | 91% | Yes |
| 2011 | 359 | 98% | Yes |
| 2012 | 363 | 99% | Yes |
| 2013 | 361 | 99% | Yes |
| 2014 | 360 | 99% | Yes |
| 2015 | 358 | 98% | Yes |
| 2016 | 361 | 99% | Yes |
| 2017 | 363 | 99% | Yes |
| 2018 | 352 | 96% | Yes |
| 2019 | 355 | 97% | Yes |
| 2020 | 359 | 98% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 288 | 79% | No |
| 2024 | 41 | 11% | No |
| 2025 | 284 | 78% | No |
| 2026 | 164 | 45% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 31 March 2026 | Rockwell City, US | daily high max | 30.6 C (87.1 F) | 2.3 C (4.1 F) | 48 years | 26 of 100 (Routine) |
| 22 March 2026 | Rockwell City, US | monthly high max | 32.8 C (91.0 F) | 2.2 C (4.0 F) | 39 years | 33 of 100 (Routine) |
| 27 February 2026 | Rockwell City, US | daily snowfall (Tie) | 2.5 cm (1.0 in) | tie | 48 years | 6 of 100 (Routine) |
| 20 February 2026 | Rockwell City, US | daily snowfall | 20.3 cm (8.0 in) | 7.6 cm (3.0 in) | 116 years | 54 of 100 (Notable) |
| 18 February 2026 | Rockwell City, US | daily high min | 4.4 C (39.9 F) | 0.5 C (0.9 F) | 44 years | 23 of 100 (Routine) |
| 18 February 2026 | Rockwell City, US | daily high max | 18.9 C (66.0 F) | 0.6 C (1.1 F) | 8 years | 12 of 100 (Routine) |
| 17 February 2026 | Rockwell City, US | daily high max (Tie) | 18.3 C (64.9 F) | tie | 44 years | 5 of 100 (Routine) |
| 16 February 2026 | Rockwell City, US | daily high max | 18.9 C (66.0 F) | 2.2 C (4.0 F) | 44 years | 26 of 100 (Routine) |
| 10 February 2026 | Rockwell City, US | daily high max | 18.9 C (66.0 F) | 1.7 C (3.1 F) | 48 years | 26 of 100 (Routine) |
| 24 January 2026 | Rockwell City, US | daily low max (Tie) | -19.4 C (-2.9 F) | tie | 90 years | 9 of 100 (Routine) |
| 9 January 2026 | Rockwell City, US | daily rain | 20.3 mm (0.8 in) | 7.6 mm (0.30 in) | 124 years | 20 of 100 (Routine) |
| 7 December 2025 | Rockwell City, US | daily snowfall (Tie) | 12.7 cm (5.0 in) | tie | 56 years | 6 of 100 (Routine) |
| 5 December 2025 | Rockwell City, US | daily low min | -23.3 C (-9.9 F) | 2.7 C (4.9 F) | 20 years | 19 of 100 (Routine) |
| 29 November 2025 | Rockwell City, US | daily snowfall | 13.7 cm (5.4 in) | 1.0 cm (0.4 in) | 54 years | 28 of 100 (Routine) |
| 25 November 2025 | Rockwell City, US | daily high min | 6.7 C (44.1 F) | 1.7 C (3.1 F) | 8 years | 14 of 100 (Routine) |
| 30 September 2025 | Rockwell City, US | daily high max | 32.8 C (91.0 F) | 0.6 C (1.1 F) | 72 years | 32 of 100 (Routine) |
| 24 July 2025 | Rockwell City, US | daily rain | 46.5 mm (1.8 in) | 20.1 mm (0.8 in) | 100 years | 53 of 100 (Notable) |
| 15 May 2025 | Rockwell City, US | daily high min | 20.6 C (69.1 F) | 2.8 C (5.0 F) | 63 years | 33 of 100 (Routine) |
| 22 February 2025 | Rockwell City, US | daily low min | -24.4 C (-11.9 F) | 0.5 C (0.9 F) | 63 years | 28 of 100 (Routine) |
| 20 February 2025 | Rockwell City, US | daily low max | -15.6 C (3.9 F) | 0.6 C (1.1 F) | 107 years | 40 of 100 (Notable) |
Climate Trend
105 complete years, 1898 to 2022| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1898 | 7.7 C | -1.14 C |
| 1899 | 8.2 C | -0.64 C |
| 1900 | 9.2 C | +0.37 C |
| 1901 | 9.3 C | +0.48 C |
| 1903 | 8.5 C | -0.34 C |
| 1904 | 7.7 C | -1.11 C |
| 1905 | 8.2 C | -0.58 C |
| 1907 | 8.6 C | -0.20 C |
| 1908 | 9.9 C | +1.06 C |
| 1909 | 8.5 C | -0.30 C |
| 1910 | 9.1 C | +0.34 C |
| 1911 | 9.5 C | +0.69 C |
| 1912 | 7.9 C | -0.89 C |
| 1913 | 9.2 C | +0.45 C |
| 1916 | 8.1 C | -0.67 C |
| 1917 | 6.7 C | -2.08 C |
| 1918 | 9.2 C | +0.44 C |
| 1931 | 11.3 C | +2.55 C |
| 1933 | 10.1 C | +1.29 C |
| 1934 | 10.4 C | +1.63 C |
| 1935 | 8.9 C | +0.06 C |
| 1936 | 8.5 C | -0.31 C |
| 1937 | 7.9 C | -0.94 C |
| 1938 | 10.0 C | +1.25 C |
| 1939 | 10.2 C | +1.42 C |
| 1940 | 8.4 C | -0.44 C |
| 1941 | 10.2 C | +1.43 C |
| 1942 | 9.0 C | +0.21 C |
| 1943 | 8.6 C | -0.22 C |
| 1944 | 9.2 C | +0.41 C |
| 1945 | 8.3 C | -0.50 C |
| 1946 | 9.8 C | +0.97 C |
| 1947 | 8.8 C | +0.05 C |
| 1948 | 9.2 C | +0.36 C |
| 1949 | 9.1 C | +0.29 C |
| 1950 | 7.3 C | -1.49 C |
| 1951 | 7.0 C | -1.76 C |
| 1952 | 9.1 C | +0.30 C |
| 1953 | 9.7 C | +0.94 C |
| 1954 | 9.7 C | +0.86 C |
| 1955 | 9.0 C | +0.20 C |
| 1956 | 9.3 C | +0.46 C |
| 1957 | 8.9 C | +0.07 C |
| 1958 | 8.9 C | +0.07 C |
| 1959 | 8.6 C | -0.17 C |
| 1960 | 8.2 C | -0.61 C |
| 1961 | 8.5 C | -0.30 C |
| 1962 | 8.3 C | -0.46 C |
| 1963 | 9.5 C | +0.70 C |
| 1964 | 9.8 C | +0.97 C |
| 1965 | 8.7 C | -0.09 C |
| 1966 | 8.6 C | -0.16 C |
| 1967 | 8.9 C | +0.11 C |
| 1968 | 9.1 C | +0.33 C |
| 1969 | 8.0 C | -0.77 C |
| 1970 | 8.7 C | -0.14 C |
| 1971 | 9.2 C | +0.38 C |
| 1972 | 7.7 C | -1.14 C |
| 1973 | 9.6 C | +0.85 C |
| 1974 | 9.0 C | +0.23 C |
| 1975 | 8.7 C | -0.08 C |
| 1976 | 9.2 C | +0.41 C |
| 1977 | 9.5 C | +0.69 C |
| 1978 | 7.5 C | -1.25 C |
| 1979 | 7.6 C | -1.20 C |
| 1980 | 9.5 C | +0.73 C |
| 1981 | 10.0 C | +1.21 C |
| 1982 | 7.9 C | -0.85 C |
| 1983 | 8.5 C | -0.25 C |
| 1984 | 8.9 C | +0.12 C |
| 1985 | 8.1 C | -0.73 C |
| 1986 | 9.4 C | +0.65 C |
| 1987 | 11.1 C | +2.35 C |
| 1988 | 9.8 C | +1.01 C |
| 1989 | 8.6 C | -0.21 C |
| 1990 | 10.1 C | +1.30 C |
| 1991 | 9.3 C | +0.48 C |
| 1992 | 9.3 C | +0.47 C |
| 1993 | 7.6 C | -1.24 C |
| 1994 | 8.8 C | -0.01 C |
| 1995 | 8.3 C | -0.53 C |
| 1996 | 6.6 C | -2.19 C |
| 1997 | 7.8 C | -0.96 C |
| 1998 | 9.8 C | +0.99 C |
| 2000 | 8.5 C | -0.34 C |
| 2001 | 8.3 C | -0.45 C |
| 2002 | 8.4 C | -0.39 C |
| 2003 | 8.0 C | -0.83 C |
| 2004 | 8.4 C | -0.37 C |
| 2005 | 9.0 C | +0.21 C |
| 2007 | 8.6 C | -0.16 C |
| 2008 | 6.9 C | -1.88 C |
| 2009 | 7.5 C | -1.32 C |
| 2011 | 8.5 C | -0.27 C |
| 2012 | 10.8 C | +2.02 C |
| 2013 | 7.6 C | -1.16 C |
| 2014 | 7.1 C | -1.67 C |
| 2015 | 9.4 C | +0.62 C |
| 2016 | 10.0 C | +1.23 C |
| 2017 | 9.7 C | +0.92 C |
| 2018 | 8.2 C | -0.63 C |
| 2019 | 7.5 C | -1.33 C |
| 2020 | 9.1 C | +0.31 C |
| 2021 | 9.6 C | +0.76 C |
| 2022 | 7.7 C | -1.08 C |
The fitted trend in annual mean temperature here over 1898 to 2022 is -0.02 C (-0.07 to 0.03) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.04 F (-0.13 to 0.06) per decade. The slope is a straight line fitted to 105 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.02 C (-0.07 to 0.03) per decade | -0.04 F (-0.13 to 0.06) per decade | 1898 to 2022 | 105 | Not clearly different from zero |
| Mean daily maximum | -0.08 C (-0.14 to -0.02) per decade | -0.15 F (-0.26 to -0.04) per decade | 1898 to 2022 | 105 | Fall |
| Mean daily minimum | 0.04 C (-0.01 to 0.09) per decade | 0.07 F (-0.02 to 0.17) per decade | 1898 to 2022 | 105 | 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
1894 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.3 C (109.9 F) | 1936 | 36.1 C (97.0 F) | 132 |
| Coldest night (TNn) | -37.2 C (-35.0 F) | 1912 | -27.8 C (-18.0 F) | 132 |
| Wettest day (Rx1day) | 153.9 mm (6.1 in) | 1979 | 58.4 mm (2.3 in) | 132 |
| Wettest five days (Rx5day) | 260.4 mm (10.3 in) | 2007 | 87.4 mm (3.4 in) | 132 |
| Longest dry spell (CDD) | 64 days | 1924 | 27 days | 132 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1894 | 36.7 C (98.1 F) |
| 1895 | 14.4 C (57.9 F) |
| 1897 | 38.3 C (100.9 F) |
| 1898 | 36.1 C (97.0 F) |
| 1899 | 36.1 C (97.0 F) |
| 1900 | 35.0 C (95.0 F) |
| 1901 | 41.1 C (106.0 F) |
| 1902 | 34.4 C (93.9 F) |
| 1903 | 35.0 C (95.0 F) |
| 1904 | 35.0 C (95.0 F) |
| 1905 | 35.0 C (95.0 F) |
| 1906 | 35.0 C (95.0 F) |
| 1907 | 35.0 C (95.0 F) |
| 1908 | 37.8 C (100.0 F) |
| 1909 | 36.1 C (97.0 F) |
| 1910 | 35.6 C (96.1 F) |
| 1911 | 39.4 C (102.9 F) |
| 1912 | 36.7 C (98.1 F) |
| 1913 | 37.2 C (99.0 F) |
| 1914 | 37.2 C (99.0 F) |
| 1915 | 32.2 C (90.0 F) |
| 1916 | 37.8 C (100.0 F) |
| 1917 | 37.2 C (99.0 F) |
| 1918 | 39.4 C (102.9 F) |
| 1919 | 35.0 C (95.0 F) |
| 1920 | 34.4 C (93.9 F) |
| 1921 | 35.6 C (96.1 F) |
| 1922 | 35.6 C (96.1 F) |
| 1923 | 35.6 C (96.1 F) |
| 1924 | 33.3 C (91.9 F) |
| 1925 | 37.8 C (100.0 F) |
| 1926 | 38.3 C (100.9 F) |
| 1927 | 35.6 C (96.1 F) |
| 1928 | 35.0 C (95.0 F) |
| 1929 | 36.1 C (97.0 F) |
| 1930 | 41.7 C (107.1 F) |
| 1931 | 40.0 C (104.0 F) |
| 1932 | 36.7 C (98.1 F) |
| 1933 | 40.6 C (105.1 F) |
| 1934 | 42.8 C (109.0 F) |
| 1935 | 40.0 C (104.0 F) |
| 1936 | 43.3 C (109.9 F) |
| 1937 | 38.9 C (102.0 F) |
| 1938 | 37.2 C (99.0 F) |
| 1939 | 38.9 C (102.0 F) |
| 1940 | 40.6 C (105.1 F) |
| 1941 | 40.0 C (104.0 F) |
| 1942 | 36.7 C (98.1 F) |
| 1943 | 36.1 C (97.0 F) |
| 1944 | 36.7 C (98.1 F) |
| 1945 | 36.7 C (98.1 F) |
| 1946 | 37.8 C (100.0 F) |
| 1947 | 40.6 C (105.1 F) |
| 1948 | 37.8 C (100.0 F) |
| 1949 | 36.1 C (97.0 F) |
| 1950 | 34.4 C (93.9 F) |
| 1951 | 33.9 C (93.0 F) |
| 1952 | 37.2 C (99.0 F) |
| 1953 | 36.7 C (98.1 F) |
| 1954 | 38.9 C (102.0 F) |
| 1955 | 41.1 C (106.0 F) |
| 1956 | 38.9 C (102.0 F) |
| 1957 | 37.8 C (100.0 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 37.2 C (99.0 F) |
| 1960 | 35.6 C (96.1 F) |
| 1961 | 35.6 C (96.1 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 38.3 C (100.9 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 37.8 C (100.0 F) |
| 1966 | 36.7 C (98.1 F) |
| 1967 | 38.3 C (100.9 F) |
| 1968 | 36.1 C (97.0 F) |
| 1969 | 36.1 C (97.0 F) |
| 1970 | 36.7 C (98.1 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 35.6 C (96.1 F) |
| 1973 | 34.4 C (93.9 F) |
| 1974 | 39.4 C (102.9 F) |
| 1975 | 35.0 C (95.0 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 36.1 C (97.0 F) |
| 1979 | 34.4 C (93.9 F) |
| 1980 | 36.7 C (98.1 F) |
| 1981 | 36.1 C (97.0 F) |
| 1982 | 35.6 C (96.1 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 38.9 C (102.0 F) |
| 1985 | 38.3 C (100.9 F) |
| 1986 | 35.0 C (95.0 F) |
| 1987 | 37.8 C (100.0 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 35.6 C (96.1 F) |
| 1990 | 36.7 C (98.1 F) |
| 1991 | 35.0 C (95.0 F) |
| 1992 | 32.2 C (90.0 F) |
| 1993 | 31.7 C (89.1 F) |
| 1994 | 32.8 C (91.0 F) |
| 1995 | 37.8 C (100.0 F) |
| 1996 | 33.9 C (93.0 F) |
| 1997 | 34.4 C (93.9 F) |
| 1998 | 34.4 C (93.9 F) |
| 1999 | 35.6 C (96.1 F) |
| 2000 | 36.1 C (97.0 F) |
| 2001 | 35.0 C (95.0 F) |
| 2002 | 35.6 C (96.1 F) |
| 2003 | 36.1 C (97.0 F) |
| 2004 | 32.2 C (90.0 F) |
| 2005 | 33.9 C (93.0 F) |
| 2006 | 35.0 C (95.0 F) |
| 2007 | 35.0 C (95.0 F) |
| 2008 | 34.4 C (93.9 F) |
| 2009 | 32.8 C (91.0 F) |
| 2010 | 33.9 C (93.0 F) |
| 2011 | 36.7 C (98.1 F) |
| 2012 | 38.3 C (100.9 F) |
| 2013 | 38.3 C (100.9 F) |
| 2014 | 32.8 C (91.0 F) |
| 2015 | 35.0 C (95.0 F) |
| 2016 | 35.6 C (96.1 F) |
| 2017 | 35.6 C (96.1 F) |
| 2018 | 36.7 C (98.1 F) |
| 2019 | 33.9 C (93.0 F) |
| 2020 | 36.1 C (97.0 F) |
| 2021 | 37.2 C (99.0 F) |
| 2022 | 35.0 C (95.0 F) |
| 2023 | 36.7 C (98.1 F) |
| 2024 | 15.6 C (60.1 F) |
| 2025 | 36.7 C (98.1 F) |
| 2026 | 36.7 C (98.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1894 | -25.6 C (-14.1 F) |
| 1895 | -28.9 C (-20.0 F) |
| 1897 | -31.1 C (-24.0 F) |
| 1898 | -28.9 C (-20.0 F) |
| 1899 | -35.0 C (-31.0 F) |
| 1900 | -25.6 C (-14.1 F) |
| 1901 | -28.9 C (-20.0 F) |
| 1902 | -29.4 C (-20.9 F) |
| 1903 | -27.8 C (-18.0 F) |
| 1904 | -33.3 C (-27.9 F) |
| 1905 | -35.6 C (-32.1 F) |
| 1906 | -26.1 C (-15.0 F) |
| 1907 | -29.4 C (-20.9 F) |
| 1908 | -24.4 C (-11.9 F) |
| 1909 | -28.3 C (-18.9 F) |
| 1910 | -27.2 C (-17.0 F) |
| 1911 | -30.6 C (-23.1 F) |
| 1912 | -37.2 C (-35.0 F) |
| 1913 | -25.6 C (-14.1 F) |
| 1914 | -28.9 C (-20.0 F) |
| 1915 | -30.6 C (-23.1 F) |
| 1916 | -31.7 C (-25.1 F) |
| 1917 | -35.6 C (-32.1 F) |
| 1918 | -35.6 C (-32.1 F) |
| 1919 | -30.0 C (-22.0 F) |
| 1920 | -27.2 C (-17.0 F) |
| 1921 | -22.2 C (-8.0 F) |
| 1922 | -24.4 C (-11.9 F) |
| 1923 | -26.1 C (-15.0 F) |
| 1924 | -34.4 C (-29.9 F) |
| 1925 | -26.7 C (-16.1 F) |
| 1926 | -25.6 C (-14.1 F) |
| 1927 | -26.1 C (-15.0 F) |
| 1928 | -24.4 C (-11.9 F) |
| 1929 | -25.0 C (-13.0 F) |
| 1930 | -16.7 C (1.9 F) |
| 1931 | -21.7 C (-7.1 F) |
| 1932 | -28.9 C (-20.0 F) |
| 1933 | -31.1 C (-24.0 F) |
| 1934 | -25.6 C (-14.1 F) |
| 1935 | -30.0 C (-22.0 F) |
| 1936 | -32.8 C (-27.0 F) |
| 1937 | -30.6 C (-23.1 F) |
| 1938 | -24.4 C (-11.9 F) |
| 1939 | -26.1 C (-15.0 F) |
| 1940 | -31.1 C (-24.0 F) |
| 1941 | -21.7 C (-7.1 F) |
| 1942 | -31.1 C (-24.0 F) |
| 1943 | -28.9 C (-20.0 F) |
| 1944 | -27.8 C (-18.0 F) |
| 1945 | -24.4 C (-11.9 F) |
| 1946 | -26.7 C (-16.1 F) |
| 1947 | -25.0 C (-13.0 F) |
| 1948 | -28.3 C (-18.9 F) |
| 1949 | -26.7 C (-16.1 F) |
| 1950 | -27.8 C (-18.0 F) |
| 1951 | -28.9 C (-20.0 F) |
| 1952 | -26.7 C (-16.1 F) |
| 1953 | -24.4 C (-11.9 F) |
| 1954 | -28.3 C (-18.9 F) |
| 1955 | -27.2 C (-17.0 F) |
| 1956 | -28.3 C (-18.9 F) |
| 1957 | -26.1 C (-15.0 F) |
| 1958 | -29.4 C (-20.9 F) |
| 1959 | -27.2 C (-17.0 F) |
| 1960 | -26.1 C (-15.0 F) |
| 1961 | -26.7 C (-16.1 F) |
| 1962 | -30.0 C (-22.0 F) |
| 1963 | -31.1 C (-24.0 F) |
| 1964 | -24.4 C (-11.9 F) |
| 1965 | -26.7 C (-16.1 F) |
| 1966 | -31.7 C (-25.1 F) |
| 1967 | -27.2 C (-17.0 F) |
| 1968 | -28.3 C (-18.9 F) |
| 1969 | -27.8 C (-18.0 F) |
| 1970 | -32.2 C (-26.0 F) |
| 1971 | -27.2 C (-17.0 F) |
| 1972 | -31.1 C (-24.0 F) |
| 1973 | -27.2 C (-17.0 F) |
| 1974 | -31.7 C (-25.1 F) |
| 1975 | -28.9 C (-20.0 F) |
| 1976 | -27.2 C (-17.0 F) |
| 1977 | -30.0 C (-22.0 F) |
| 1978 | -27.8 C (-18.0 F) |
| 1979 | -30.6 C (-23.1 F) |
| 1980 | -23.3 C (-9.9 F) |
| 1981 | -30.0 C (-22.0 F) |
| 1982 | -31.7 C (-25.1 F) |
| 1983 | -30.6 C (-23.1 F) |
| 1984 | -28.9 C (-20.0 F) |
| 1985 | -30.0 C (-22.0 F) |
| 1986 | -26.1 C (-15.0 F) |
| 1987 | -26.1 C (-15.0 F) |
| 1988 | -28.9 C (-20.0 F) |
| 1989 | -31.7 C (-25.1 F) |
| 1990 | -29.4 C (-20.9 F) |
| 1991 | -25.0 C (-13.0 F) |
| 1992 | -24.4 C (-11.9 F) |
| 1993 | -25.0 C (-13.0 F) |
| 1994 | -30.0 C (-22.0 F) |
| 1995 | -24.4 C (-11.9 F) |
| 1996 | -32.2 C (-26.0 F) |
| 1997 | -25.6 C (-14.1 F) |
| 1998 | -24.4 C (-11.9 F) |
| 1999 | -28.9 C (-20.0 F) |
| 2000 | -27.2 C (-17.0 F) |
| 2001 | -24.4 C (-11.9 F) |
| 2002 | -23.3 C (-9.9 F) |
| 2003 | -24.4 C (-11.9 F) |
| 2004 | -27.8 C (-18.0 F) |
| 2005 | -24.4 C (-11.9 F) |
| 2006 | -25.0 C (-13.0 F) |
| 2007 | -25.6 C (-14.1 F) |
| 2008 | -27.2 C (-17.0 F) |
| 2009 | -31.7 C (-25.1 F) |
| 2010 | -31.7 C (-25.1 F) |
| 2011 | -26.7 C (-16.1 F) |
| 2012 | -21.7 C (-7.1 F) |
| 2013 | -24.4 C (-11.9 F) |
| 2014 | -27.8 C (-18.0 F) |
| 2015 | -24.4 C (-11.9 F) |
| 2016 | -28.3 C (-18.9 F) |
| 2017 | -26.1 C (-15.0 F) |
| 2018 | -30.6 C (-23.1 F) |
| 2019 | -37.2 C (-35.0 F) |
| 2020 | -27.2 C (-17.0 F) |
| 2021 | -36.1 C (-33.0 F) |
| 2022 | -28.3 C (-18.9 F) |
| 2023 | -27.8 C (-18.0 F) |
| 2024 | -18.3 C (-0.9 F) |
| 2025 | -27.8 C (-18.0 F) |
| 2026 | -26.7 C (-16.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1894 | 41.7 mm (1.6 in) |
| 1895 | 7.6 mm (0.30 in) |
| 1897 | 44.5 mm (1.8 in) |
| 1898 | 45.0 mm (1.8 in) |
| 1899 | 48.3 mm (1.9 in) |
| 1900 | 91.4 mm (3.6 in) |
| 1901 | 57.2 mm (2.3 in) |
| 1902 | 102.9 mm (4.1 in) |
| 1903 | 72.4 mm (2.9 in) |
| 1904 | 43.2 mm (1.7 in) |
| 1905 | 52.1 mm (2.1 in) |
| 1906 | 77.5 mm (3.1 in) |
| 1907 | 63.5 mm (2.5 in) |
| 1908 | 76.2 mm (3.0 in) |
| 1909 | 100.3 mm (3.9 in) |
| 1910 | 56.6 mm (2.2 in) |
| 1911 | 133.4 mm (5.3 in) |
| 1912 | 44.5 mm (1.8 in) |
| 1913 | 41.9 mm (1.6 in) |
| 1914 | 47.2 mm (1.9 in) |
| 1915 | 87.6 mm (3.4 in) |
| 1916 | 53.8 mm (2.1 in) |
| 1917 | 82.6 mm (3.3 in) |
| 1918 | 64.0 mm (2.5 in) |
| 1919 | 58.4 mm (2.3 in) |
| 1920 | 50.8 mm (2.0 in) |
| 1921 | 55.9 mm (2.2 in) |
| 1922 | 75.4 mm (3.0 in) |
| 1923 | 44.2 mm (1.7 in) |
| 1924 | 26.4 mm (1.0 in) |
| 1925 | 34.3 mm (1.4 in) |
| 1926 | 61.0 mm (2.4 in) |
| 1927 | 35.6 mm (1.4 in) |
| 1928 | 52.1 mm (2.1 in) |
| 1929 | 38.1 mm (1.5 in) |
| 1930 | 61.5 mm (2.4 in) |
| 1931 | 67.3 mm (2.6 in) |
| 1932 | 72.4 mm (2.9 in) |
| 1933 | 79.0 mm (3.1 in) |
| 1934 | 33.0 mm (1.3 in) |
| 1935 | 115.3 mm (4.5 in) |
| 1936 | 55.9 mm (2.2 in) |
| 1937 | 92.7 mm (3.6 in) |
| 1938 | 93.5 mm (3.7 in) |
| 1939 | 28.4 mm (1.1 in) |
| 1940 | 114.0 mm (4.5 in) |
| 1941 | 46.7 mm (1.8 in) |
| 1942 | 32.0 mm (1.3 in) |
| 1943 | 60.7 mm (2.4 in) |
| 1944 | 51.1 mm (2.0 in) |
| 1945 | 53.8 mm (2.1 in) |
| 1946 | 52.8 mm (2.1 in) |
| 1947 | 108.0 mm (4.3 in) |
| 1948 | 56.6 mm (2.2 in) |
| 1949 | 58.4 mm (2.3 in) |
| 1950 | 68.3 mm (2.7 in) |
| 1951 | 67.1 mm (2.6 in) |
| 1952 | 51.3 mm (2.0 in) |
| 1953 | 73.2 mm (2.9 in) |
| 1954 | 127.3 mm (5.0 in) |
| 1955 | 47.5 mm (1.9 in) |
| 1956 | 45.7 mm (1.8 in) |
| 1957 | 53.3 mm (2.1 in) |
| 1958 | 38.1 mm (1.5 in) |
| 1959 | 47.8 mm (1.9 in) |
| 1960 | 64.8 mm (2.6 in) |
| 1961 | 63.5 mm (2.5 in) |
| 1962 | 102.9 mm (4.1 in) |
| 1963 | 64.8 mm (2.6 in) |
| 1964 | 41.9 mm (1.6 in) |
| 1965 | 84.3 mm (3.3 in) |
| 1966 | 55.1 mm (2.2 in) |
| 1967 | 76.2 mm (3.0 in) |
| 1968 | 89.4 mm (3.5 in) |
| 1969 | 91.9 mm (3.6 in) |
| 1970 | 64.3 mm (2.5 in) |
| 1971 | 40.6 mm (1.6 in) |
| 1972 | 74.9 mm (2.9 in) |
| 1973 | 127.0 mm (5.0 in) |
| 1974 | 55.9 mm (2.2 in) |
| 1975 | 47.5 mm (1.9 in) |
| 1976 | 47.5 mm (1.9 in) |
| 1977 | 50.8 mm (2.0 in) |
| 1978 | 90.9 mm (3.6 in) |
| 1979 | 153.9 mm (6.1 in) |
| 1980 | 62.7 mm (2.5 in) |
| 1981 | 69.9 mm (2.8 in) |
| 1982 | 149.1 mm (5.9 in) |
| 1983 | 47.0 mm (1.9 in) |
| 1984 | 35.6 mm (1.4 in) |
| 1985 | 55.1 mm (2.2 in) |
| 1986 | 66.0 mm (2.6 in) |
| 1987 | 53.3 mm (2.1 in) |
| 1988 | 98.6 mm (3.9 in) |
| 1989 | 43.9 mm (1.7 in) |
| 1990 | 51.8 mm (2.0 in) |
| 1991 | 59.4 mm (2.3 in) |
| 1992 | 46.2 mm (1.8 in) |
| 1993 | 62.7 mm (2.5 in) |
| 1994 | 66.5 mm (2.6 in) |
| 1995 | 47.2 mm (1.9 in) |
| 1996 | 71.1 mm (2.8 in) |
| 1997 | 36.6 mm (1.4 in) |
| 1998 | 74.2 mm (2.9 in) |
| 1999 | 54.6 mm (2.1 in) |
| 2000 | 47.5 mm (1.9 in) |
| 2001 | 116.8 mm (4.6 in) |
| 2002 | 85.1 mm (3.4 in) |
| 2003 | 90.9 mm (3.6 in) |
| 2004 | 98.0 mm (3.9 in) |
| 2005 | 69.9 mm (2.8 in) |
| 2006 | 39.4 mm (1.6 in) |
| 2007 | 134.4 mm (5.3 in) |
| 2008 | 75.9 mm (3.0 in) |
| 2009 | 38.4 mm (1.5 in) |
| 2010 | 73.7 mm (2.9 in) |
| 2011 | 37.6 mm (1.5 in) |
| 2012 | 69.1 mm (2.7 in) |
| 2013 | 99.1 mm (3.9 in) |
| 2014 | 67.3 mm (2.6 in) |
| 2015 | 61.7 mm (2.4 in) |
| 2016 | 70.6 mm (2.8 in) |
| 2017 | 58.4 mm (2.3 in) |
| 2018 | 62.7 mm (2.5 in) |
| 2019 | 77.0 mm (3.0 in) |
| 2020 | 47.5 mm (1.9 in) |
| 2021 | 54.4 mm (2.1 in) |
| 2022 | 36.3 mm (1.4 in) |
| 2023 | 40.1 mm (1.6 in) |
| 2024 | 26.7 mm (1.1 in) |
| 2025 | 46.5 mm (1.8 in) |
| 2026 | 36.1 mm (1.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1894 | 48.8 mm (1.9 in) |
| 1895 | 8.9 mm (0.35 in) |
| 1897 | 57.5 mm (2.3 in) |
| 1898 | 64.5 mm (2.5 in) |
| 1899 | 62.5 mm (2.5 in) |
| 1900 | 142.5 mm (5.6 in) |
| 1901 | 75.7 mm (3.0 in) |
| 1902 | 154.0 mm (6.1 in) |
| 1903 | 115.9 mm (4.6 in) |
| 1904 | 86.4 mm (3.4 in) |
| 1905 | 91.4 mm (3.6 in) |
| 1906 | 100.1 mm (3.9 in) |
| 1907 | 85.1 mm (3.4 in) |
| 1908 | 141.0 mm (5.6 in) |
| 1909 | 129.6 mm (5.1 in) |
| 1910 | 77.5 mm (3.1 in) |
| 1911 | 153.7 mm (6.1 in) |
| 1912 | 67.4 mm (2.7 in) |
| 1913 | 82.5 mm (3.2 in) |
| 1914 | 109.7 mm (4.3 in) |
| 1915 | 123.5 mm (4.9 in) |
| 1916 | 69.6 mm (2.7 in) |
| 1917 | 119.0 mm (4.7 in) |
| 1918 | 141.8 mm (5.6 in) |
| 1919 | 94.3 mm (3.7 in) |
| 1920 | 83.9 mm (3.3 in) |
| 1921 | 66.6 mm (2.6 in) |
| 1922 | 83.8 mm (3.3 in) |
| 1923 | 76.2 mm (3.0 in) |
| 1924 | 49.3 mm (1.9 in) |
| 1925 | 45.8 mm (1.8 in) |
| 1926 | 83.9 mm (3.3 in) |
| 1927 | 62.8 mm (2.5 in) |
| 1928 | 71.7 mm (2.8 in) |
| 1929 | 64.8 mm (2.6 in) |
| 1930 | 93.3 mm (3.7 in) |
| 1931 | 107.9 mm (4.2 in) |
| 1932 | 102.1 mm (4.0 in) |
| 1933 | 83.0 mm (3.3 in) |
| 1934 | 83.6 mm (3.3 in) |
| 1935 | 127.4 mm (5.0 in) |
| 1936 | 66.8 mm (2.6 in) |
| 1937 | 144.0 mm (5.7 in) |
| 1938 | 150.4 mm (5.9 in) |
| 1939 | 62.3 mm (2.5 in) |
| 1940 | 141.0 mm (5.6 in) |
| 1941 | 83.1 mm (3.3 in) |
| 1942 | 45.5 mm (1.8 in) |
| 1943 | 91.9 mm (3.6 in) |
| 1944 | 119.7 mm (4.7 in) |
| 1945 | 92.4 mm (3.6 in) |
| 1946 | 84.4 mm (3.3 in) |
| 1947 | 52.0 mm (2.0 in) |
| 1948 | 64.5 mm (2.5 in) |
| 1949 | 89.6 mm (3.5 in) |
| 1950 | 101.9 mm (4.0 in) |
| 1951 | 133.9 mm (5.3 in) |
| 1952 | 74.7 mm (2.9 in) |
| 1953 | 84.9 mm (3.3 in) |
| 1954 | 152.2 mm (6.0 in) |
| 1955 | 53.2 mm (2.1 in) |
| 1956 | 65.0 mm (2.6 in) |
| 1957 | 89.9 mm (3.5 in) |
| 1958 | 77.8 mm (3.1 in) |
| 1959 | 96.0 mm (3.8 in) |
| 1960 | 94.3 mm (3.7 in) |
| 1961 | 85.4 mm (3.4 in) |
| 1962 | 132.9 mm (5.2 in) |
| 1963 | 73.4 mm (2.9 in) |
| 1964 | 46.7 mm (1.8 in) |
| 1965 | 186.7 mm (7.4 in) |
| 1966 | 85.1 mm (3.4 in) |
| 1967 | 151.6 mm (6.0 in) |
| 1968 | 139.7 mm (5.5 in) |
| 1969 | 125.9 mm (5.0 in) |
| 1970 | 99.5 mm (3.9 in) |
| 1971 | 95.2 mm (3.7 in) |
| 1972 | 98.0 mm (3.9 in) |
| 1973 | 164.2 mm (6.5 in) |
| 1974 | 67.3 mm (2.6 in) |
| 1975 | 60.5 mm (2.4 in) |
| 1976 | 66.6 mm (2.6 in) |
| 1977 | 78.1 mm (3.1 in) |
| 1978 | 131.8 mm (5.2 in) |
| 1979 | 182.9 mm (7.2 in) |
| 1980 | 87.5 mm (3.4 in) |
| 1981 | 138.0 mm (5.4 in) |
| 1982 | 162.3 mm (6.4 in) |
| 1983 | 112.3 mm (4.4 in) |
| 1984 | 86.4 mm (3.4 in) |
| 1985 | 69.6 mm (2.7 in) |
| 1986 | 97.3 mm (3.8 in) |
| 1987 | 83.1 mm (3.3 in) |
| 1988 | 99.4 mm (3.9 in) |
| 1989 | 87.3 mm (3.4 in) |
| 1990 | 103.1 mm (4.1 in) |
| 1991 | 86.6 mm (3.4 in) |
| 1992 | 67.3 mm (2.6 in) |
| 1993 | 100.9 mm (4.0 in) |
| 1994 | 73.1 mm (2.9 in) |
| 1995 | 64.6 mm (2.5 in) |
| 1996 | 81.0 mm (3.2 in) |
| 1997 | 49.3 mm (1.9 in) |
| 1998 | 83.1 mm (3.3 in) |
| 1999 | 91.5 mm (3.6 in) |
| 2000 | 51.6 mm (2.0 in) |
| 2001 | 167.1 mm (6.6 in) |
| 2002 | 125.9 mm (5.0 in) |
| 2003 | 168.9 mm (6.6 in) |
| 2004 | 113.5 mm (4.5 in) |
| 2005 | 99.3 mm (3.9 in) |
| 2006 | 62.7 mm (2.5 in) |
| 2007 | 260.4 mm (10.3 in) |
| 2008 | 95.4 mm (3.8 in) |
| 2009 | 57.7 mm (2.3 in) |
| 2010 | 123.3 mm (4.9 in) |
| 2011 | 72.1 mm (2.8 in) |
| 2012 | 94.2 mm (3.7 in) |
| 2013 | 125.0 mm (4.9 in) |
| 2014 | 129.3 mm (5.1 in) |
| 2015 | 92.9 mm (3.7 in) |
| 2016 | 99.1 mm (3.9 in) |
| 2017 | 81.8 mm (3.2 in) |
| 2018 | 135.6 mm (5.3 in) |
| 2019 | 115.2 mm (4.5 in) |
| 2020 | 73.1 mm (2.9 in) |
| 2021 | 90.7 mm (3.6 in) |
| 2022 | 65.5 mm (2.6 in) |
| 2023 | 54.6 mm (2.1 in) |
| 2024 | 28.7 mm (1.1 in) |
| 2025 | 75.2 mm (3.0 in) |
| 2026 | 53.6 mm (2.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1894 | 37 days |
| 1895 | 13 days |
| 1897 | 40 days |
| 1898 | 28 days |
| 1899 | 27 days |
| 1900 | 26 days |
| 1901 | 31 days |
| 1902 | 26 days |
| 1903 | 34 days |
| 1904 | 51 days |
| 1905 | 29 days |
| 1906 | 35 days |
| 1907 | 19 days |
| 1908 | 30 days |
| 1909 | 24 days |
| 1910 | 52 days |
| 1911 | 38 days |
| 1912 | 30 days |
| 1913 | 29 days |
| 1914 | 45 days |
| 1915 | 28 days |
| 1916 | 31 days |
| 1917 | 29 days |
| 1918 | 22 days |
| 1919 | 31 days |
| 1920 | 19 days |
| 1921 | 23 days |
| 1922 | 18 days |
| 1923 | 26 days |
| 1924 | 64 days |
| 1925 | 31 days |
| 1926 | 47 days |
| 1927 | 25 days |
| 1928 | 36 days |
| 1929 | 29 days |
| 1930 | 35 days |
| 1931 | 44 days |
| 1932 | 30 days |
| 1933 | 45 days |
| 1934 | 28 days |
| 1935 | 24 days |
| 1936 | 24 days |
| 1937 | 31 days |
| 1938 | 27 days |
| 1939 | 34 days |
| 1940 | 26 days |
| 1941 | 17 days |
| 1942 | 37 days |
| 1943 | 20 days |
| 1944 | 21 days |
| 1945 | 37 days |
| 1946 | 25 days |
| 1947 | 20 days |
| 1948 | 27 days |
| 1949 | 33 days |
| 1950 | 26 days |
| 1951 | 17 days |
| 1952 | 53 days |
| 1953 | 24 days |
| 1954 | 31 days |
| 1955 | 23 days |
| 1956 | 38 days |
| 1957 | 20 days |
| 1958 | 30 days |
| 1959 | 23 days |
| 1960 | 29 days |
| 1961 | 16 days |
| 1962 | 44 days |
| 1963 | 29 days |
| 1964 | 25 days |
| 1965 | 21 days |
| 1966 | 28 days |
| 1967 | 26 days |
| 1968 | 23 days |
| 1969 | 18 days |
| 1970 | 20 days |
| 1971 | 31 days |
| 1972 | 27 days |
| 1973 | 16 days |
| 1974 | 30 days |
| 1975 | 25 days |
| 1976 | 35 days |
| 1977 | 16 days |
| 1978 | 30 days |
| 1979 | 30 days |
| 1980 | 32 days |
| 1981 | 30 days |
| 1982 | 16 days |
| 1983 | 22 days |
| 1984 | 28 days |
| 1985 | 19 days |
| 1986 | 32 days |
| 1987 | 58 days |
| 1988 | 30 days |
| 1989 | 27 days |
| 1990 | 26 days |
| 1991 | 37 days |
| 1992 | 23 days |
| 1993 | 22 days |
| 1994 | 26 days |
| 1995 | 26 days |
| 1996 | 19 days |
| 1997 | 17 days |
| 1998 | 39 days |
| 1999 | 23 days |
| 2000 | 20 days |
| 2001 | 31 days |
| 2002 | 56 days |
| 2003 | 18 days |
| 2004 | 18 days |
| 2005 | 30 days |
| 2006 | 30 days |
| 2007 | 35 days |
| 2008 | 16 days |
| 2009 | 26 days |
| 2010 | 26 days |
| 2011 | 22 days |
| 2012 | 30 days |
| 2013 | 18 days |
| 2014 | 17 days |
| 2015 | 26 days |
| 2016 | 26 days |
| 2017 | 35 days |
| 2018 | 24 days |
| 2019 | 17 days |
| 2020 | 19 days |
| 2021 | 29 days |
| 2022 | 26 days |
| 2023 | 26 days |
| 2024 | 12 days |
| 2025 | 39 days |
| 2026 | 25 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
105 years with a frostAcross 105 years with a frost, the median last spring frost at Rockwell City falls on 1 May and the median first autumn frost on 7 October, which leaves a median of 161 days between them.
In 1990 to 2022 the median growing season was 169 days. That is 11 days more than in 1898 to 1944.
Fitted over all years, the growing season changes by +1.1 days per decade at this station.
| Measure | Median, all years | Earliest period (1898 to 1944) | Recent period (1990 to 2022) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 1 May | 3 May | 27 April | 6 days earlier | -0.7 days per decade |
| First autumn frost | 7 October | 7 October | 10 October | 3 days later | +0.4 days per decade |
| Growing days | 161 days | 158 days | 169 days | 11 days more | +1.1 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
114 years, 1894 to 2022A day with at least 61.0 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 162.3 mm (6.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 61.0 mm (2.4 in) | |
| 5 years | 83.3 mm (3.3 in) | |
| 10 years | 99.8 mm (3.9 in) | |
| 25 years | 122.9 mm (4.8 in) | |
| 50 years | 141.9 mm (5.6 in) | |
| 100 years | 162.3 mm (6.4 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 114 years of values from 1894 to 2022.
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: 153.9 mm (6.1 in) in 1979; 149.1 mm (5.9 in) in 1982; 134.4 mm (5.3 in) in 2007.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Rockwell City, at 1931 and 1965. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1931 ran 0.2 C (0.4 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1965 ran 0.3 C (0.5 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1931 | -0.2 | -0.4 | possible | 5 |
| 1965 | +0.3 | +0.5 | 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
2007 to 2022 against 1961 to 1990Over 2007 to 2022, Rockwell City had a mean temperature of 8.6 C (47.4 F) and 833.0 mm (32.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Colo (United States, 116 km away), Toledo 3N (United States, 173 km away) and Paw Paw 2S (United States, 474 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Colo | United States | 116 km (72 mi) | 8.3 C (47.0 F) | 866.4 mm (34.1 in) | 0.75 |
| Toledo 3N | United States | 173 km (107 mi) | 8.3 C (47.0 F) | 881.4 mm (34.7 in) | 0.77 |
| Paw Paw 2S | United States | 474 km (295 mi) | 8.4 C (47.1 F) | 907.5 mm (35.7 in) | 0.79 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).