Iowa Falls Weather Records (USC00134142)
Record envelope, standing records and threshold days for Iowa Falls (USC00134142), Iowa, United States, with 134 years of record.
Key Facts for Iowa Falls
- Iowa Falls (USC00134142) is a weather station in Iowa, United States at 42.52 latitude and -93.25 longitude, 322 m (1,055 ft) above sea level.
- The station reports from 1893 to 2026, 134 years of record.
- 1,464 records set at Iowa Falls still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Iowa Falls set a daily record high maximum temperature of 30.0 C (86.0 F) on 11 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Iowa, United States, 42.52 latitude, -93.25 longitude.
- Elevation: 322 m (1,055 ft).
- Period of record: 1893 to 2026, 134 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
7 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 20.0 C (68.0 F) | -36.7 C (-34.1 F) | 10.0 C (50.0 F) | -27.8 C (-18.0 F) |
| Feb | 24.4 C (75.9 F) | -35.6 C (-32.1 F) | 18.9 C (66.0 F) | -18.9 C (-2.0 F) |
| Mar | 31.1 C (88.0 F) | -35.0 C (-31.0 F) | 31.1 C (88.0 F) | -16.1 C (3.0 F) |
| Apr | 36.1 C (97.0 F) | -16.1 C (3.0 F) | 30.6 C (87.1 F) | -3.3 C (26.1 F) |
| May | 41.7 C (107.1 F) | -7.8 C (18.0 F) | 32.2 C (90.0 F) | -1.1 C (30.0 F) |
| Jun | 41.7 C (107.1 F) | 1.1 C (34.0 F) | 32.2 C (90.0 F) | 9.4 C (48.9 F) |
| Jul | 43.9 C (111.0 F) | 2.2 C (36.0 F) | 35.6 C (96.1 F) | 11.7 C (53.1 F) |
| Aug | 42.2 C (108.0 F) | -0.6 C (30.9 F) | 32.2 C (90.0 F) | 11.7 C (53.1 F) |
| Sep | 38.3 C (100.9 F) | -7.2 C (19.0 F) | 33.3 C (91.9 F) | 8.3 C (46.9 F) |
| Oct | 35.0 C (95.0 F) | -20.6 C (-5.1 F) | 30.0 C (86.0 F) | 5.6 C (42.1 F) |
| Nov | 26.1 C (79.0 F) | -25.0 C (-13.0 F) | n/a | n/a |
| Dec | 21.1 C (70.0 F) | -35.0 C (-31.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 25 |
| 1894 | 29 |
| 1895 | 26 |
| 1896 | 18 |
| 1897 | 19 |
| 1898 | 9 |
| 1899 | 26 |
| 1900 | 8 |
| 1901 | 10 |
| 1902 | 11 |
| 1903 | 5 |
| 1904 | 7 |
| 1905 | 9 |
| 1906 | 4 |
| 1907 | 15 |
| 1908 | 5 |
| 1909 | 14 |
| 1910 | 11 |
| 1911 | 20 |
| 1912 | 17 |
| 1913 | 15 |
| 1914 | 7 |
| 1915 | 15 |
| 1916 | 10 |
| 1917 | 18 |
| 1918 | 16 |
| 1919 | 9 |
| 1920 | 8 |
| 1921 | 12 |
| 1922 | 3 |
| 1923 | 11 |
| 1924 | 9 |
| 1925 | 26 |
| 1926 | 11 |
| 1927 | 16 |
| 1928 | 12 |
| 1929 | 8 |
| 1930 | 32 |
| 1931 | 26 |
| 1932 | 10 |
| 1933 | 8 |
| 1934 | 33 |
| 1935 | 12 |
| 1936 | 42 |
| 1937 | 12 |
| 1938 | 15 |
| 1939 | 18 |
| 1940 | 13 |
| 1941 | 10 |
| 1942 | 14 |
| 1943 | 7 |
| 1944 | 15 |
| 1945 | 16 |
| 1946 | 13 |
| 1947 | 17 |
| 1948 | 7 |
| 1949 | 4 |
| 1950 | 13 |
| 1951 | 10 |
| 1952 | 12 |
| 1953 | 9 |
| 1954 | 7 |
| 1955 | 11 |
| 1956 | 7 |
| 1957 | 2 |
| 1958 | 7 |
| 1959 | 9 |
| 1960 | 8 |
| 1961 | 5 |
| 1962 | 14 |
| 1963 | 12 |
| 1964 | 14 |
| 1965 | 14 |
| 1966 | 10 |
| 1967 | 8 |
| 1968 | 9 |
| 1969 | 4 |
| 1970 | 9 |
| 1971 | 4 |
| 1972 | 8 |
| 1973 | 8 |
| 1974 | 6 |
| 1975 | 4 |
| 1976 | 7 |
| 1977 | 17 |
| 1979 | 3 |
| 1980 | 7 |
| 1981 | 7 |
| 1982 | 6 |
| 1983 | 15 |
| 1984 | 1 |
| 1985 | 3 |
| 1986 | 8 |
| 1987 | 11 |
| 1988 | 13 |
| 1989 | 6 |
| 1990 | 16 |
| 1991 | 14 |
| 1992 | 10 |
| 1993 | 5 |
| 1994 | 16 |
| 1995 | 6 |
| 1996 | 9 |
| 1997 | 5 |
| 1998 | 16 |
| 1999 | 6 |
| 2000 | 14 |
| 2001 | 8 |
| 2002 | 9 |
| 2003 | 7 |
| 2004 | 8 |
| 2005 | 5 |
| 2006 | 9 |
| 2007 | 5 |
| 2008 | 5 |
| 2009 | 5 |
| 2010 | 3 |
| 2011 | 7 |
| 2012 | 13 |
| 2013 | 7 |
| 2014 | 11 |
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 13 |
| 2018 | 13 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 12 |
| 2022 | 6 |
| 2023 | 9 |
| 2024 | 8 |
| 2025 | 10 |
| 2026 | 11 |
All-Time Record Progression
10 new records| Date | Kind | Detail |
|---|---|---|
| 1924-08-19 | Record daily precipitation | Record daily precipitation 132.8 mm (5.2 in) |
| 1930-08-03 | Record high maximum temperature | Record high maximum temperature 41.1 C (106.0 F) |
| 1934-05-31 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 1936-07-13 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
| 1936-07-14 | Record high maximum temperature | Record high maximum temperature 43.9 C (111.0 F) |
| 1942-06-02 | Record daily precipitation | Record daily precipitation 142.7 mm (5.6 in) |
| 1952-06-07 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
| 1964-07-31 | Record daily precipitation | Record daily precipitation 158.8 mm (6.3 in) |
| 1971-01-04 | Record daily snowfall | Record daily snowfall 45.7 cm (18.0 in) |
| 1986-07-18 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
Wettest Day of Each Month
Jul: 158.8 mm (6.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 49.5 mm (1.9 in) | 4 January 1971 |
| Feb | 57.9 mm (2.3 in) | 22 February 1922 |
| Mar | 47.0 mm (1.9 in) | 6 March 1946 |
| Apr | 96.5 mm (3.8 in) | 25 April 2008 |
| May | 86.9 mm (3.4 in) | 27 May 2013 |
| Jun | 142.7 mm (5.6 in) | 2 June 1942 |
| Jul | 158.8 mm (6.3 in) | 31 July 1964 |
| Aug | 132.8 mm (5.2 in) | 19 August 1924 |
| Sep | 105.4 mm (4.1 in) | 21 September 1950 |
| Oct | 58.7 mm (2.3 in) | 6 October 1914 |
| Nov | 62.2 mm (2.4 in) | 23 November 1931 |
| Dec | 53.6 mm (2.1 in) | 14 December 2015 |
Period of Record Coverage
1893 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 345 | 95% | Yes |
| 1894 | 351 | 96% | Yes |
| 1895 | 357 | 98% | Yes |
| 1896 | 354 | 97% | Yes |
| 1897 | 362 | 99% | Yes |
| 1898 | 365 | 100% | Yes |
| 1899 | 364 | 100% | Yes |
| 1900 | 365 | 100% | Yes |
| 1901 | 364 | 100% | Yes |
| 1902 | 358 | 98% | Yes |
| 1903 | 354 | 97% | Yes |
| 1904 | 351 | 96% | Yes |
| 1905 | 357 | 98% | Yes |
| 1906 | 346 | 95% | Yes |
| 1907 | 352 | 96% | Yes |
| 1908 | 356 | 97% | Yes |
| 1909 | 348 | 95% | Yes |
| 1910 | 353 | 97% | Yes |
| 1911 | 352 | 96% | Yes |
| 1912 | 355 | 97% | Yes |
| 1913 | 350 | 96% | Yes |
| 1914 | 342 | 94% | Yes |
| 1915 | 342 | 94% | Yes |
| 1916 | 343 | 94% | Yes |
| 1917 | 339 | 93% | Yes |
| 1918 | 351 | 96% | Yes |
| 1919 | 364 | 100% | Yes |
| 1920 | 365 | 100% | Yes |
| 1921 | 359 | 98% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 360 | 99% | Yes |
| 1927 | 361 | 99% | Yes |
| 1928 | 365 | 100% | Yes |
| 1929 | 364 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 364 | 99% | Yes |
| 1933 | 363 | 99% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 363 | 99% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 365 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 363 | 99% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 333 | 91% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 357 | 98% | Yes |
| 1951 | 364 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 338 | 93% | Yes |
| 1955 | 362 | 99% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 358 | 98% | Yes |
| 1958 | 343 | 94% | Yes |
| 1959 | 355 | 97% | Yes |
| 1960 | 358 | 98% | Yes |
| 1961 | 356 | 98% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 334 | 92% | Yes |
| 1980 | 305 | 83% | No |
| 1981 | 306 | 84% | No |
| 1982 | 360 | 99% | Yes |
| 1983 | 363 | 99% | Yes |
| 1984 | 119 | 33% | No |
| 1985 | 229 | 63% | No |
| 1986 | 348 | 95% | Yes |
| 1987 | 358 | 98% | Yes |
| 1988 | 333 | 91% | Yes |
| 1989 | 357 | 98% | Yes |
| 1990 | 364 | 100% | Yes |
| 1991 | 363 | 99% | Yes |
| 1992 | 361 | 99% | Yes |
| 1993 | 363 | 99% | Yes |
| 1994 | 358 | 98% | Yes |
| 1995 | 360 | 99% | Yes |
| 1996 | 246 | 67% | No |
| 1997 | 362 | 99% | Yes |
| 1998 | 363 | 99% | Yes |
| 1999 | 363 | 99% | Yes |
| 2000 | 363 | 99% | Yes |
| 2001 | 360 | 99% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 365 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 362 | 99% | Yes |
| 2007 | 362 | 99% | Yes |
| 2008 | 363 | 99% | Yes |
| 2009 | 338 | 93% | Yes |
| 2010 | 348 | 95% | Yes |
| 2011 | 363 | 99% | Yes |
| 2012 | 345 | 94% | Yes |
| 2013 | 356 | 98% | Yes |
| 2014 | 359 | 98% | Yes |
| 2015 | 360 | 99% | Yes |
| 2016 | 362 | 99% | Yes |
| 2017 | 363 | 99% | Yes |
| 2018 | 358 | 98% | Yes |
| 2019 | 354 | 97% | Yes |
| 2020 | 362 | 99% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 353 | 97% | Yes |
| 2024 | 363 | 99% | Yes |
| 2025 | 359 | 98% | Yes |
| 2026 | 277 | 76% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 October 2026 | Iowa Falls, US | daily high max (Provisional) | 30.0 C (86.0 F) | 0.6 C (1.1 F) | 97 years | 39 of 100 (Notable) |
| 1 October 2026 | Iowa Falls, US | monthly rain (Provisional) | 71.1 mm (2.8 in) | 12.4 mm (0.5 in) | 111 years | 61 of 100 (Major) |
| 5 September 2026 | Iowa Falls, US | daily high min (Tie, Provisional) | 21.7 C (71.1 F) | tie | 125 years | 10 of 100 (Routine) |
| 4 September 2026 | Iowa Falls, US | daily high min (Tie, Provisional) | 21.1 C (70.0 F) | tie | 104 years | 10 of 100 (Routine) |
| 12 August 2026 | Iowa Falls, US | daily high min | 22.8 C (73.0 F) | 1.1 C (2.0 F) | 37 years | 23 of 100 (Routine) |
| 6 August 2026 | Iowa Falls, US | daily low max | 21.1 C (70.0 F) | 0.6 C (1.1 F) | 77 years | 34 of 100 (Routine) |
| 27 July 2026 | Iowa Falls, US | daily high min (Tie) | 24.4 C (75.9 F) | tie | 107 years | 10 of 100 (Routine) |
| 21 July 2026 | Iowa Falls, US | daily rain | 27.7 mm (1.1 in) | 0.5 mm (0.02 in) | 23 years | 16 of 100 (Routine) |
| 1 July 2026 | Iowa Falls, US | daily high min | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 48 years | 25 of 100 (Routine) |
| 16 April 2026 | Iowa Falls, US | daily rain | 52.3 mm (2.1 in) | 17.8 mm (0.7 in) | 52 years | 42 of 100 (Notable) |
| 4 April 2026 | Iowa Falls, US | daily rain | 49.5 mm (1.9 in) | 7.6 mm (0.30 in) | 80 years | 41 of 100 (Notable) |
| 2 April 2026 | Iowa Falls, US | daily rain | 20.6 mm (0.8 in) | 1.5 mm (0.06 in) | 47 years | 20 of 100 (Routine) |
| 31 March 2026 | Iowa Falls, US | daily high max | 29.4 C (84.9 F) | 2.2 C (4.0 F) | 40 years | 24 of 100 (Routine) |
| 22 March 2026 | Iowa Falls, US | monthly high max | 31.1 C (88.0 F) | 0.5 C (0.9 F) | 130 years | 50 of 100 (Notable) |
| 17 March 2026 | Iowa Falls, US | daily low max | -9.4 C (15.1 F) | 0.5 C (0.9 F) | 124 years | 40 of 100 (Notable) |
| 10 March 2026 | Iowa Falls, US | daily high max | 20.6 C (69.1 F) | 1.2 C (2.2 F) | 59 years | 28 of 100 (Routine) |
| 9 March 2026 | Iowa Falls, US | daily high min | 6.1 C (43.0 F) | 1.7 C (3.1 F) | 52 years | 27 of 100 (Routine) |
| 7 March 2026 | Iowa Falls, US | daily rain | 27.9 mm (1.1 in) | 10.9 mm (0.4 in) | 51 years | 39 of 100 (Notable) |
| 20 February 2026 | Iowa Falls, US | daily rain | 21.6 mm (0.9 in) | 5.1 mm (0.20 in) | 72 years | 20 of 100 (Routine) |
| 20 February 2026 | Iowa Falls, US | daily snowfall | 22.9 cm (9.0 in) | 12.7 cm (5.0 in) | 7 years | 38 of 100 (Notable) |
Climate Trend
122 complete years, 1893 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1893 | 5.7 C | -2.55 C |
| 1894 | 8.2 C | -0.05 C |
| 1895 | 6.8 C | -1.43 C |
| 1896 | 7.6 C | -0.64 C |
| 1897 | 7.5 C | -0.72 C |
| 1899 | 7.6 C | -0.61 C |
| 1900 | 8.4 C | +0.19 C |
| 1901 | 8.1 C | -0.16 C |
| 1902 | 7.5 C | -0.72 C |
| 1903 | 7.0 C | -1.27 C |
| 1904 | 6.5 C | -1.78 C |
| 1905 | 7.2 C | -1.04 C |
| 1906 | 7.9 C | -0.35 C |
| 1907 | 7.4 C | -0.84 C |
| 1908 | 8.5 C | +0.28 C |
| 1909 | 7.1 C | -1.13 C |
| 1910 | 7.3 C | -0.92 C |
| 1911 | 7.7 C | -0.51 C |
| 1912 | 6.2 C | -2.07 C |
| 1913 | 8.2 C | -0.06 C |
| 1914 | 8.1 C | -0.18 C |
| 1915 | 7.2 C | -1.04 C |
| 1916 | 7.0 C | -1.24 C |
| 1917 | 5.5 C | -2.79 C |
| 1918 | 8.3 C | +0.01 C |
| 1919 | 8.4 C | +0.20 C |
| 1920 | 8.0 C | -0.24 C |
| 1921 | 10.2 C | +1.97 C |
| 1922 | 9.1 C | +0.85 C |
| 1923 | 8.6 C | +0.37 C |
| 1924 | 7.0 C | -1.20 C |
| 1925 | 8.3 C | +0.05 C |
| 1926 | 8.2 C | -0.04 C |
| 1927 | 8.6 C | +0.38 C |
| 1928 | 9.0 C | +0.77 C |
| 1929 | 7.0 C | -1.25 C |
| 1930 | 9.2 C | +0.99 C |
| 1931 | 11.2 C | +2.94 C |
| 1932 | 8.0 C | -0.28 C |
| 1933 | 9.4 C | +1.18 C |
| 1934 | 9.7 C | +1.49 C |
| 1935 | 8.2 C | -0.08 C |
| 1936 | 8.2 C | -0.08 C |
| 1937 | 7.7 C | -0.56 C |
| 1938 | 9.8 C | +1.55 C |
| 1939 | 9.7 C | +1.46 C |
| 1940 | 7.7 C | -0.54 C |
| 1941 | 9.5 C | +1.21 C |
| 1942 | 8.2 C | -0.08 C |
| 1943 | 7.6 C | -0.64 C |
| 1944 | 8.6 C | +0.35 C |
| 1945 | 7.6 C | -0.60 C |
| 1946 | 9.3 C | +1.08 C |
| 1947 | 8.4 C | +0.13 C |
| 1949 | 8.6 C | +0.39 C |
| 1950 | 6.6 C | -1.67 C |
| 1951 | 6.6 C | -1.66 C |
| 1952 | 8.7 C | +0.46 C |
| 1953 | 9.4 C | +1.14 C |
| 1955 | 9.0 C | +0.74 C |
| 1956 | 8.9 C | +0.64 C |
| 1957 | 8.6 C | +0.37 C |
| 1958 | 8.1 C | -0.19 C |
| 1959 | 8.1 C | -0.18 C |
| 1960 | 7.5 C | -0.74 C |
| 1961 | 7.9 C | -0.33 C |
| 1962 | 7.9 C | -0.31 C |
| 1963 | 8.1 C | -0.13 C |
| 1964 | 9.1 C | +0.81 C |
| 1965 | 7.5 C | -0.74 C |
| 1966 | 7.5 C | -0.77 C |
| 1967 | 8.0 C | -0.23 C |
| 1968 | 8.5 C | +0.24 C |
| 1969 | 7.5 C | -0.71 C |
| 1970 | 8.3 C | +0.01 C |
| 1971 | 8.5 C | +0.27 C |
| 1972 | 7.4 C | -0.88 C |
| 1973 | 9.4 C | +1.20 C |
| 1974 | 8.6 C | +0.38 C |
| 1975 | 8.5 C | +0.24 C |
| 1976 | 8.3 C | +0.10 C |
| 1977 | 9.1 C | +0.83 C |
| 1978 | 7.7 C | -0.59 C |
| 1982 | 8.0 C | -0.22 C |
| 1983 | 8.9 C | +0.62 C |
| 1986 | 9.1 C | +0.88 C |
| 1987 | 11.0 C | +2.79 C |
| 1989 | 8.3 C | +0.05 C |
| 1990 | 9.8 C | +1.54 C |
| 1991 | 9.0 C | +0.75 C |
| 1992 | 8.4 C | +0.18 C |
| 1993 | 6.7 C | -1.55 C |
| 1994 | 7.8 C | -0.46 C |
| 1995 | 7.5 C | -0.71 C |
| 1997 | 7.6 C | -0.69 C |
| 1998 | 9.7 C | +1.42 C |
| 1999 | 8.9 C | +0.66 C |
| 2000 | 8.4 C | +0.11 C |
| 2001 | 8.4 C | +0.16 C |
| 2002 | 8.6 C | +0.40 C |
| 2003 | 8.0 C | -0.26 C |
| 2004 | 8.3 C | +0.05 C |
| 2005 | 8.8 C | +0.52 C |
| 2006 | 9.4 C | +1.14 C |
| 2007 | 8.5 C | +0.29 C |
| 2008 | 6.7 C | -1.52 C |
| 2010 | 8.2 C | -0.08 C |
| 2011 | 8.2 C | -0.04 C |
| 2012 | 10.0 C | +1.75 C |
| 2013 | 7.0 C | -1.25 C |
| 2014 | 6.2 C | -2.04 C |
| 2015 | 8.5 C | +0.30 C |
| 2016 | 9.3 C | +1.05 C |
| 2017 | 9.3 C | +1.02 C |
| 2018 | 7.9 C | -0.36 C |
| 2019 | 7.6 C | -0.66 C |
| 2020 | 8.9 C | +0.64 C |
| 2021 | 9.4 C | +1.17 C |
| 2022 | 7.6 C | -0.63 C |
| 2023 | 9.7 C | +1.47 C |
| 2024 | 10.3 C | +2.04 C |
| 2025 | 9.3 C | +1.03 C |
The annual mean temperature here has risen by 0.08 C (0.03 to 0.12) per decade over 1893 to 2025. In Fahrenheit: 0.1 F (0.1 to 0.2) per decade. The slope is a straight line fitted to 122 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.08 C (0.03 to 0.12) per decade | 0.1 F (0.1 to 0.2) per decade | 1893 to 2025 | 122 | Rise |
| Mean daily maximum | 0.03 C (-0.02 to 0.08) per decade | 0.05 F (-0.03 to 0.14) per decade | 1893 to 2025 | 122 | Not clearly different from zero |
| Mean daily minimum | 0.1 C (0.1 to 0.2) per decade | 0.2 F (0.1 to 0.3) per decade | 1893 to 2025 | 122 | 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
1893 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.9 C (111.0 F) | 1936 | 35.6 C (96.1 F) | 134 |
| Coldest night (TNn) | -36.7 C (-34.1 F) | 1912 | -28.6 C (-19.5 F) | 134 |
| Wettest day (Rx1day) | 158.8 mm (6.3 in) | 1964 | 62.1 mm (2.4 in) | 134 |
| Wettest five days (Rx5day) | 214.4 mm (8.4 in) | 1924 | 93.8 mm (3.7 in) | 134 |
| Longest dry spell (CDD) | 43 days | 1916 | 23 days | 134 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 36.1 C (97.0 F) |
| 1894 | 40.6 C (105.1 F) |
| 1895 | 35.0 C (95.0 F) |
| 1896 | 34.4 C (93.9 F) |
| 1897 | 37.8 C (100.0 F) |
| 1898 | 35.6 C (96.1 F) |
| 1899 | 36.7 C (98.1 F) |
| 1900 | 35.0 C (95.0 F) |
| 1901 | 40.0 C (104.0 F) |
| 1902 | 33.3 C (91.9 F) |
| 1903 | 33.3 C (91.9 F) |
| 1904 | 33.9 C (93.0 F) |
| 1905 | 35.0 C (95.0 F) |
| 1906 | 34.4 C (93.9 F) |
| 1907 | 33.9 C (93.0 F) |
| 1908 | 35.0 C (95.0 F) |
| 1909 | 33.9 C (93.0 F) |
| 1910 | 36.7 C (98.1 F) |
| 1911 | 39.4 C (102.9 F) |
| 1912 | 34.4 C (93.9 F) |
| 1913 | 36.7 C (98.1 F) |
| 1914 | 36.1 C (97.0 F) |
| 1915 | 32.2 C (90.0 F) |
| 1916 | 36.7 C (98.1 F) |
| 1917 | 36.7 C (98.1 F) |
| 1918 | 37.8 C (100.0 F) |
| 1919 | 37.2 C (99.0 F) |
| 1920 | 33.3 C (91.9 F) |
| 1921 | 35.0 C (95.0 F) |
| 1922 | 35.6 C (96.1 F) |
| 1923 | 35.6 C (96.1 F) |
| 1924 | 33.3 C (91.9 F) |
| 1925 | 37.2 C (99.0 F) |
| 1926 | 37.2 C (99.0 F) |
| 1927 | 37.2 C (99.0 F) |
| 1928 | 35.0 C (95.0 F) |
| 1929 | 35.0 C (95.0 F) |
| 1930 | 41.1 C (106.0 F) |
| 1931 | 39.4 C (102.9 F) |
| 1932 | 35.6 C (96.1 F) |
| 1933 | 38.3 C (100.9 F) |
| 1934 | 41.7 C (107.1 F) |
| 1935 | 36.1 C (97.0 F) |
| 1936 | 43.9 C (111.0 F) |
| 1937 | 39.4 C (102.9 F) |
| 1938 | 37.8 C (100.0 F) |
| 1939 | 38.3 C (100.9 F) |
| 1940 | 41.1 C (106.0 F) |
| 1941 | 38.3 C (100.9 F) |
| 1942 | 35.0 C (95.0 F) |
| 1943 | 35.0 C (95.0 F) |
| 1944 | 35.6 C (96.1 F) |
| 1945 | 34.4 C (93.9 F) |
| 1946 | 34.4 C (93.9 F) |
| 1947 | 37.8 C (100.0 F) |
| 1948 | 37.8 C (100.0 F) |
| 1949 | 35.0 C (95.0 F) |
| 1950 | 34.4 C (93.9 F) |
| 1951 | 33.9 C (93.0 F) |
| 1952 | 35.0 C (95.0 F) |
| 1953 | 36.7 C (98.1 F) |
| 1954 | 36.1 C (97.0 F) |
| 1955 | 40.0 C (104.0 F) |
| 1956 | 37.2 C (99.0 F) |
| 1957 | 37.2 C (99.0 F) |
| 1958 | 33.9 C (93.0 F) |
| 1959 | 35.6 C (96.1 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 36.1 C (97.0 F) |
| 1962 | 32.8 C (91.0 F) |
| 1963 | 36.1 C (97.0 F) |
| 1964 | 34.4 C (93.9 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 36.1 C (97.0 F) |
| 1967 | 36.7 C (98.1 F) |
| 1968 | 35.0 C (95.0 F) |
| 1969 | 33.9 C (93.0 F) |
| 1970 | 37.2 C (99.0 F) |
| 1971 | 35.6 C (96.1 F) |
| 1972 | 34.4 C (93.9 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 36.1 C (97.0 F) |
| 1975 | 33.3 C (91.9 F) |
| 1976 | 35.6 C (96.1 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 37.2 C (99.0 F) |
| 1979 | 35.0 C (95.0 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 36.1 C (97.0 F) |
| 1982 | 35.0 C (95.0 F) |
| 1983 | 38.3 C (100.9 F) |
| 1984 | 33.3 C (91.9 F) |
| 1985 | 40.0 C (104.0 F) |
| 1986 | 35.6 C (96.1 F) |
| 1987 | 37.2 C (99.0 F) |
| 1988 | 41.7 C (107.1 F) |
| 1989 | 37.8 C (100.0 F) |
| 1990 | 37.8 C (100.0 F) |
| 1991 | 36.7 C (98.1 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 32.2 C (90.0 F) |
| 1994 | 33.3 C (91.9 F) |
| 1995 | 37.2 C (99.0 F) |
| 1996 | 34.4 C (93.9 F) |
| 1997 | 34.4 C (93.9 F) |
| 1998 | 34.4 C (93.9 F) |
| 1999 | 35.6 C (96.1 F) |
| 2000 | 35.6 C (96.1 F) |
| 2001 | 35.0 C (95.0 F) |
| 2002 | 33.9 C (93.0 F) |
| 2003 | 35.6 C (96.1 F) |
| 2004 | 31.7 C (89.1 F) |
| 2005 | 33.9 C (93.0 F) |
| 2006 | 35.0 C (95.0 F) |
| 2007 | 33.9 C (93.0 F) |
| 2008 | 32.8 C (91.0 F) |
| 2009 | 33.3 C (91.9 F) |
| 2010 | 33.9 C (93.0 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 37.8 C (100.0 F) |
| 2013 | 36.7 C (98.1 F) |
| 2014 | 31.7 C (89.1 F) |
| 2015 | 34.4 C (93.9 F) |
| 2016 | 33.3 C (91.9 F) |
| 2017 | 33.9 C (93.0 F) |
| 2018 | 36.7 C (98.1 F) |
| 2019 | 35.0 C (95.0 F) |
| 2020 | 35.0 C (95.0 F) |
| 2021 | 38.9 C (102.0 F) |
| 2022 | 35.0 C (95.0 F) |
| 2023 | 36.7 C (98.1 F) |
| 2024 | 34.4 C (93.9 F) |
| 2025 | 35.0 C (95.0 F) |
| 2026 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -32.2 C (-26.0 F) |
| 1894 | -36.1 C (-33.0 F) |
| 1895 | -33.3 C (-27.9 F) |
| 1896 | -28.3 C (-18.9 F) |
| 1897 | -32.2 C (-26.0 F) |
| 1898 | -27.8 C (-18.0 F) |
| 1899 | -33.3 C (-27.9 F) |
| 1900 | -26.1 C (-15.0 F) |
| 1901 | -30.0 C (-22.0 F) |
| 1902 | -31.7 C (-25.1 F) |
| 1903 | -27.2 C (-17.0 F) |
| 1904 | -32.2 C (-26.0 F) |
| 1905 | -35.6 C (-32.1 F) |
| 1906 | -27.2 C (-17.0 F) |
| 1907 | -29.4 C (-20.9 F) |
| 1908 | -25.0 C (-13.0 F) |
| 1909 | -29.4 C (-20.9 F) |
| 1910 | -34.4 C (-29.9 F) |
| 1911 | -32.2 C (-26.0 F) |
| 1912 | -36.7 C (-34.1 F) |
| 1913 | -27.8 C (-18.0 F) |
| 1914 | -35.0 C (-31.0 F) |
| 1915 | -35.6 C (-32.1 F) |
| 1916 | -32.2 C (-26.0 F) |
| 1917 | -33.3 C (-27.9 F) |
| 1918 | -33.9 C (-29.0 F) |
| 1919 | -35.0 C (-31.0 F) |
| 1920 | -26.7 C (-16.1 F) |
| 1921 | -28.3 C (-18.9 F) |
| 1922 | -28.9 C (-20.0 F) |
| 1923 | -27.8 C (-18.0 F) |
| 1924 | -32.8 C (-27.0 F) |
| 1925 | -27.8 C (-18.0 F) |
| 1926 | -25.6 C (-14.1 F) |
| 1927 | -23.9 C (-11.0 F) |
| 1928 | -26.7 C (-16.1 F) |
| 1929 | -32.2 C (-26.0 F) |
| 1930 | -32.2 C (-26.0 F) |
| 1931 | -21.1 C (-6.0 F) |
| 1932 | -30.0 C (-22.0 F) |
| 1933 | -31.7 C (-25.1 F) |
| 1934 | -26.1 C (-15.0 F) |
| 1935 | -30.6 C (-23.1 F) |
| 1936 | -32.8 C (-27.0 F) |
| 1937 | -28.3 C (-18.9 F) |
| 1938 | -26.7 C (-16.1 F) |
| 1939 | -24.4 C (-11.9 F) |
| 1940 | -30.6 C (-23.1 F) |
| 1941 | -23.9 C (-11.0 F) |
| 1942 | -32.2 C (-26.0 F) |
| 1943 | -30.6 C (-23.1 F) |
| 1944 | -30.0 C (-22.0 F) |
| 1945 | -27.2 C (-17.0 F) |
| 1946 | -27.2 C (-17.0 F) |
| 1947 | -25.6 C (-14.1 F) |
| 1948 | -25.6 C (-14.1 F) |
| 1949 | -28.9 C (-20.0 F) |
| 1950 | -29.4 C (-20.9 F) |
| 1951 | -31.7 C (-25.1 F) |
| 1952 | -26.7 C (-16.1 F) |
| 1953 | -26.1 C (-15.0 F) |
| 1954 | -27.8 C (-18.0 F) |
| 1955 | -27.2 C (-17.0 F) |
| 1956 | -28.9 C (-20.0 F) |
| 1957 | -28.9 C (-20.0 F) |
| 1958 | -30.6 C (-23.1 F) |
| 1959 | -26.7 C (-16.1 F) |
| 1960 | -28.9 C (-20.0 F) |
| 1961 | -29.4 C (-20.9 F) |
| 1962 | -35.0 C (-31.0 F) |
| 1963 | -32.8 C (-27.0 F) |
| 1964 | -25.6 C (-14.1 F) |
| 1965 | -29.4 C (-20.9 F) |
| 1966 | -32.2 C (-26.0 F) |
| 1967 | -34.4 C (-29.9 F) |
| 1968 | -27.2 C (-17.0 F) |
| 1969 | -26.1 C (-15.0 F) |
| 1970 | -33.3 C (-27.9 F) |
| 1971 | -29.4 C (-20.9 F) |
| 1972 | -30.0 C (-22.0 F) |
| 1973 | -26.7 C (-16.1 F) |
| 1974 | -32.2 C (-26.0 F) |
| 1975 | -26.1 C (-15.0 F) |
| 1976 | -28.9 C (-20.0 F) |
| 1977 | -31.1 C (-24.0 F) |
| 1978 | -27.2 C (-17.0 F) |
| 1979 | -28.9 C (-20.0 F) |
| 1980 | -22.8 C (-9.0 F) |
| 1981 | -23.3 C (-9.9 F) |
| 1982 | -32.2 C (-26.0 F) |
| 1983 | -30.0 C (-22.0 F) |
| 1984 | -28.3 C (-18.9 F) |
| 1985 | -27.8 C (-18.0 F) |
| 1986 | -27.2 C (-17.0 F) |
| 1987 | -23.3 C (-9.9 F) |
| 1988 | -30.6 C (-23.1 F) |
| 1989 | -30.0 C (-22.0 F) |
| 1990 | -28.3 C (-18.9 F) |
| 1991 | -28.3 C (-18.9 F) |
| 1992 | -23.9 C (-11.0 F) |
| 1993 | -26.1 C (-15.0 F) |
| 1994 | -31.7 C (-25.1 F) |
| 1995 | -22.8 C (-9.0 F) |
| 1996 | -34.4 C (-29.9 F) |
| 1997 | -27.2 C (-17.0 F) |
| 1998 | -21.7 C (-7.1 F) |
| 1999 | -30.6 C (-23.1 F) |
| 2000 | -30.6 C (-23.1 F) |
| 2001 | -25.0 C (-13.0 F) |
| 2002 | -21.1 C (-6.0 F) |
| 2003 | -24.4 C (-11.9 F) |
| 2004 | -26.1 C (-15.0 F) |
| 2005 | -27.2 C (-17.0 F) |
| 2006 | -25.6 C (-14.1 F) |
| 2007 | -26.7 C (-16.1 F) |
| 2008 | -27.2 C (-17.0 F) |
| 2009 | -35.0 C (-31.0 F) |
| 2010 | -28.9 C (-20.0 F) |
| 2011 | -26.7 C (-16.1 F) |
| 2012 | -23.3 C (-9.9 F) |
| 2013 | -26.7 C (-16.1 F) |
| 2014 | -30.0 C (-22.0 F) |
| 2015 | -27.2 C (-17.0 F) |
| 2016 | -28.3 C (-18.9 F) |
| 2017 | -24.4 C (-11.9 F) |
| 2018 | -30.0 C (-22.0 F) |
| 2019 | -33.3 C (-27.9 F) |
| 2020 | -25.6 C (-14.1 F) |
| 2021 | -28.9 C (-20.0 F) |
| 2022 | -28.9 C (-20.0 F) |
| 2023 | -27.2 C (-17.0 F) |
| 2024 | -27.8 C (-18.0 F) |
| 2025 | -27.2 C (-17.0 F) |
| 2026 | -27.8 C (-18.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 49.0 mm (1.9 in) |
| 1894 | 43.9 mm (1.7 in) |
| 1895 | 57.9 mm (2.3 in) |
| 1896 | 75.9 mm (3.0 in) |
| 1897 | 50.8 mm (2.0 in) |
| 1898 | 58.9 mm (2.3 in) |
| 1899 | 32.5 mm (1.3 in) |
| 1900 | 49.8 mm (2.0 in) |
| 1901 | 74.9 mm (2.9 in) |
| 1902 | 111.8 mm (4.4 in) |
| 1903 | 48.5 mm (1.9 in) |
| 1904 | 52.1 mm (2.1 in) |
| 1905 | 41.9 mm (1.6 in) |
| 1906 | 32.3 mm (1.3 in) |
| 1907 | 69.3 mm (2.7 in) |
| 1908 | 53.6 mm (2.1 in) |
| 1909 | 51.1 mm (2.0 in) |
| 1910 | 39.4 mm (1.6 in) |
| 1911 | 31.0 mm (1.2 in) |
| 1912 | 52.6 mm (2.1 in) |
| 1913 | 47.0 mm (1.9 in) |
| 1914 | 58.7 mm (2.3 in) |
| 1915 | 73.7 mm (2.9 in) |
| 1916 | 59.2 mm (2.3 in) |
| 1917 | 42.7 mm (1.7 in) |
| 1918 | 94.7 mm (3.7 in) |
| 1919 | 83.1 mm (3.3 in) |
| 1920 | 72.4 mm (2.9 in) |
| 1921 | 52.6 mm (2.1 in) |
| 1922 | 71.1 mm (2.8 in) |
| 1923 | 44.5 mm (1.8 in) |
| 1924 | 132.8 mm (5.2 in) |
| 1925 | 69.6 mm (2.7 in) |
| 1926 | 70.6 mm (2.8 in) |
| 1927 | 56.6 mm (2.2 in) |
| 1928 | 100.6 mm (4.0 in) |
| 1929 | 65.0 mm (2.6 in) |
| 1930 | 65.0 mm (2.6 in) |
| 1931 | 64.0 mm (2.5 in) |
| 1932 | 63.5 mm (2.5 in) |
| 1933 | 44.5 mm (1.8 in) |
| 1934 | 100.3 mm (3.9 in) |
| 1935 | 68.6 mm (2.7 in) |
| 1936 | 71.1 mm (2.8 in) |
| 1937 | 104.1 mm (4.1 in) |
| 1938 | 75.2 mm (3.0 in) |
| 1939 | 32.0 mm (1.3 in) |
| 1940 | 55.1 mm (2.2 in) |
| 1941 | 64.0 mm (2.5 in) |
| 1942 | 142.7 mm (5.6 in) |
| 1943 | 48.3 mm (1.9 in) |
| 1944 | 48.3 mm (1.9 in) |
| 1945 | 49.3 mm (1.9 in) |
| 1946 | 63.0 mm (2.5 in) |
| 1947 | 74.9 mm (2.9 in) |
| 1948 | 49.8 mm (2.0 in) |
| 1949 | 61.0 mm (2.4 in) |
| 1950 | 105.4 mm (4.1 in) |
| 1951 | 55.9 mm (2.2 in) |
| 1952 | 64.8 mm (2.6 in) |
| 1953 | 38.6 mm (1.5 in) |
| 1954 | 38.1 mm (1.5 in) |
| 1955 | 66.0 mm (2.6 in) |
| 1956 | 51.8 mm (2.0 in) |
| 1957 | 43.9 mm (1.7 in) |
| 1958 | 99.1 mm (3.9 in) |
| 1959 | 51.1 mm (2.0 in) |
| 1960 | 51.1 mm (2.0 in) |
| 1961 | 61.5 mm (2.4 in) |
| 1962 | 59.7 mm (2.4 in) |
| 1963 | 60.5 mm (2.4 in) |
| 1964 | 158.8 mm (6.3 in) |
| 1965 | 90.2 mm (3.6 in) |
| 1966 | 62.2 mm (2.4 in) |
| 1967 | 56.6 mm (2.2 in) |
| 1968 | 108.0 mm (4.3 in) |
| 1969 | 108.0 mm (4.3 in) |
| 1970 | 47.0 mm (1.9 in) |
| 1971 | 59.2 mm (2.3 in) |
| 1972 | 78.7 mm (3.1 in) |
| 1973 | 54.6 mm (2.1 in) |
| 1974 | 66.8 mm (2.6 in) |
| 1975 | 60.7 mm (2.4 in) |
| 1976 | 94.5 mm (3.7 in) |
| 1977 | 56.1 mm (2.2 in) |
| 1978 | 73.2 mm (2.9 in) |
| 1979 | 53.8 mm (2.1 in) |
| 1980 | 52.6 mm (2.1 in) |
| 1981 | 77.2 mm (3.0 in) |
| 1982 | 49.8 mm (2.0 in) |
| 1983 | 75.4 mm (3.0 in) |
| 1984 | 57.2 mm (2.3 in) |
| 1985 | 53.8 mm (2.1 in) |
| 1986 | 60.7 mm (2.4 in) |
| 1987 | 54.4 mm (2.1 in) |
| 1988 | 64.0 mm (2.5 in) |
| 1989 | 59.7 mm (2.4 in) |
| 1990 | 70.4 mm (2.8 in) |
| 1991 | 56.9 mm (2.2 in) |
| 1992 | 44.7 mm (1.8 in) |
| 1993 | 62.0 mm (2.4 in) |
| 1994 | 71.4 mm (2.8 in) |
| 1995 | 56.1 mm (2.2 in) |
| 1996 | 43.7 mm (1.7 in) |
| 1997 | 110.5 mm (4.4 in) |
| 1998 | 110.0 mm (4.3 in) |
| 1999 | 65.5 mm (2.6 in) |
| 2000 | 71.6 mm (2.8 in) |
| 2001 | 91.9 mm (3.6 in) |
| 2002 | 55.6 mm (2.2 in) |
| 2003 | 46.0 mm (1.8 in) |
| 2004 | 83.1 mm (3.3 in) |
| 2005 | 68.6 mm (2.7 in) |
| 2006 | 96.8 mm (3.8 in) |
| 2007 | 58.4 mm (2.3 in) |
| 2008 | 125.5 mm (4.9 in) |
| 2009 | 69.1 mm (2.7 in) |
| 2010 | 78.5 mm (3.1 in) |
| 2011 | 63.5 mm (2.5 in) |
| 2012 | 41.7 mm (1.6 in) |
| 2013 | 86.9 mm (3.4 in) |
| 2014 | 89.2 mm (3.5 in) |
| 2015 | 104.4 mm (4.1 in) |
| 2016 | 59.7 mm (2.4 in) |
| 2017 | 68.1 mm (2.7 in) |
| 2018 | 88.1 mm (3.5 in) |
| 2019 | 93.5 mm (3.7 in) |
| 2020 | 66.8 mm (2.6 in) |
| 2021 | 49.5 mm (1.9 in) |
| 2022 | 84.1 mm (3.3 in) |
| 2023 | 36.8 mm (1.4 in) |
| 2024 | 73.7 mm (2.9 in) |
| 2025 | 65.5 mm (2.6 in) |
| 2026 | 71.1 mm (2.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 62.2 mm (2.4 in) |
| 1894 | 58.7 mm (2.3 in) |
| 1895 | 61.7 mm (2.4 in) |
| 1896 | 118.1 mm (4.6 in) |
| 1897 | 59.9 mm (2.4 in) |
| 1898 | 63.5 mm (2.5 in) |
| 1899 | 57.9 mm (2.3 in) |
| 1900 | 65.3 mm (2.6 in) |
| 1901 | 107.4 mm (4.2 in) |
| 1902 | 172.5 mm (6.8 in) |
| 1903 | 83.3 mm (3.3 in) |
| 1904 | 94.8 mm (3.7 in) |
| 1905 | 113.3 mm (4.5 in) |
| 1906 | 59.9 mm (2.4 in) |
| 1907 | 93.2 mm (3.7 in) |
| 1908 | 98.0 mm (3.9 in) |
| 1909 | 84.3 mm (3.3 in) |
| 1910 | 90.3 mm (3.6 in) |
| 1911 | 67.2 mm (2.6 in) |
| 1912 | 61.7 mm (2.4 in) |
| 1913 | 58.9 mm (2.3 in) |
| 1914 | 114.8 mm (4.5 in) |
| 1915 | 122.4 mm (4.8 in) |
| 1916 | 65.0 mm (2.6 in) |
| 1917 | 96.3 mm (3.8 in) |
| 1918 | 123.0 mm (4.8 in) |
| 1919 | 119.2 mm (4.7 in) |
| 1920 | 74.2 mm (2.9 in) |
| 1921 | 82.0 mm (3.2 in) |
| 1922 | 79.5 mm (3.1 in) |
| 1923 | 92.5 mm (3.6 in) |
| 1924 | 214.4 mm (8.4 in) |
| 1925 | 137.7 mm (5.4 in) |
| 1926 | 74.4 mm (2.9 in) |
| 1927 | 80.2 mm (3.2 in) |
| 1928 | 120.4 mm (4.7 in) |
| 1929 | 82.6 mm (3.3 in) |
| 1930 | 88.9 mm (3.5 in) |
| 1931 | 98.0 mm (3.9 in) |
| 1932 | 120.4 mm (4.7 in) |
| 1933 | 82.7 mm (3.3 in) |
| 1934 | 102.8 mm (4.0 in) |
| 1935 | 109.3 mm (4.3 in) |
| 1936 | 85.9 mm (3.4 in) |
| 1937 | 117.8 mm (4.6 in) |
| 1938 | 98.0 mm (3.9 in) |
| 1939 | 68.3 mm (2.7 in) |
| 1940 | 97.3 mm (3.8 in) |
| 1941 | 83.6 mm (3.3 in) |
| 1942 | 182.4 mm (7.2 in) |
| 1943 | 76.0 mm (3.0 in) |
| 1944 | 80.6 mm (3.2 in) |
| 1945 | 75.4 mm (3.0 in) |
| 1946 | 139.5 mm (5.5 in) |
| 1947 | 108.0 mm (4.3 in) |
| 1948 | 62.4 mm (2.5 in) |
| 1949 | 65.3 mm (2.6 in) |
| 1950 | 114.8 mm (4.5 in) |
| 1951 | 85.4 mm (3.4 in) |
| 1952 | 69.9 mm (2.8 in) |
| 1953 | 84.3 mm (3.3 in) |
| 1954 | 94.0 mm (3.7 in) |
| 1955 | 66.5 mm (2.6 in) |
| 1956 | 58.4 mm (2.3 in) |
| 1957 | 78.3 mm (3.1 in) |
| 1958 | 99.4 mm (3.9 in) |
| 1959 | 114.0 mm (4.5 in) |
| 1960 | 79.0 mm (3.1 in) |
| 1961 | 73.6 mm (2.9 in) |
| 1962 | 60.5 mm (2.4 in) |
| 1963 | 92.5 mm (3.6 in) |
| 1964 | 195.4 mm (7.7 in) |
| 1965 | 165.6 mm (6.5 in) |
| 1966 | 71.4 mm (2.8 in) |
| 1967 | 130.8 mm (5.1 in) |
| 1968 | 115.1 mm (4.5 in) |
| 1969 | 186.2 mm (7.3 in) |
| 1970 | 83.4 mm (3.3 in) |
| 1971 | 90.7 mm (3.6 in) |
| 1972 | 120.3 mm (4.7 in) |
| 1973 | 71.4 mm (2.8 in) |
| 1974 | 107.4 mm (4.2 in) |
| 1975 | 74.9 mm (2.9 in) |
| 1976 | 113.5 mm (4.5 in) |
| 1977 | 75.5 mm (3.0 in) |
| 1978 | 95.2 mm (3.7 in) |
| 1979 | 89.1 mm (3.5 in) |
| 1980 | 103.9 mm (4.1 in) |
| 1981 | 93.5 mm (3.7 in) |
| 1982 | 76.9 mm (3.0 in) |
| 1983 | 97.8 mm (3.9 in) |
| 1984 | 80.8 mm (3.2 in) |
| 1985 | 58.6 mm (2.3 in) |
| 1986 | 82.0 mm (3.2 in) |
| 1987 | 92.0 mm (3.6 in) |
| 1988 | 71.6 mm (2.8 in) |
| 1989 | 95.7 mm (3.8 in) |
| 1990 | 95.3 mm (3.8 in) |
| 1991 | 125.8 mm (5.0 in) |
| 1992 | 77.2 mm (3.0 in) |
| 1993 | 108.0 mm (4.3 in) |
| 1994 | 120.7 mm (4.8 in) |
| 1995 | 69.5 mm (2.7 in) |
| 1996 | 59.2 mm (2.3 in) |
| 1997 | 132.8 mm (5.2 in) |
| 1998 | 159.1 mm (6.3 in) |
| 1999 | 99.8 mm (3.9 in) |
| 2000 | 73.4 mm (2.9 in) |
| 2001 | 103.1 mm (4.1 in) |
| 2002 | 107.7 mm (4.2 in) |
| 2003 | 100.6 mm (4.0 in) |
| 2004 | 118.9 mm (4.7 in) |
| 2005 | 98.6 mm (3.9 in) |
| 2006 | 105.8 mm (4.2 in) |
| 2007 | 130.3 mm (5.1 in) |
| 2008 | 212.8 mm (8.4 in) |
| 2009 | 95.8 mm (3.8 in) |
| 2010 | 138.7 mm (5.5 in) |
| 2011 | 66.5 mm (2.6 in) |
| 2012 | 62.2 mm (2.4 in) |
| 2013 | 169.0 mm (6.7 in) |
| 2014 | 194.9 mm (7.7 in) |
| 2015 | 113.5 mm (4.5 in) |
| 2016 | 71.6 mm (2.8 in) |
| 2017 | 91.2 mm (3.6 in) |
| 2018 | 114.6 mm (4.5 in) |
| 2019 | 108.3 mm (4.3 in) |
| 2020 | 129.3 mm (5.1 in) |
| 2021 | 86.0 mm (3.4 in) |
| 2022 | 126.3 mm (5.0 in) |
| 2023 | 46.2 mm (1.8 in) |
| 2024 | 160.8 mm (6.3 in) |
| 2025 | 126.5 mm (5.0 in) |
| 2026 | 98.0 mm (3.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 26 days |
| 1894 | 39 days |
| 1895 | 21 days |
| 1896 | 23 days |
| 1897 | 23 days |
| 1898 | 19 days |
| 1899 | 36 days |
| 1900 | 19 days |
| 1901 | 20 days |
| 1902 | 19 days |
| 1903 | 36 days |
| 1904 | 30 days |
| 1905 | 22 days |
| 1906 | 25 days |
| 1907 | 27 days |
| 1908 | 25 days |
| 1909 | 23 days |
| 1910 | 36 days |
| 1911 | 31 days |
| 1912 | 21 days |
| 1913 | 23 days |
| 1914 | 31 days |
| 1915 | 21 days |
| 1916 | 43 days |
| 1917 | 20 days |
| 1918 | 22 days |
| 1919 | 31 days |
| 1920 | 18 days |
| 1921 | 28 days |
| 1922 | 23 days |
| 1923 | 19 days |
| 1924 | 21 days |
| 1925 | 20 days |
| 1926 | 13 days |
| 1927 | 25 days |
| 1928 | 16 days |
| 1929 | 14 days |
| 1930 | 17 days |
| 1931 | 43 days |
| 1932 | 21 days |
| 1933 | 26 days |
| 1934 | 27 days |
| 1935 | 24 days |
| 1936 | 25 days |
| 1937 | 19 days |
| 1938 | 24 days |
| 1939 | 21 days |
| 1940 | 20 days |
| 1941 | 22 days |
| 1942 | 37 days |
| 1943 | 25 days |
| 1944 | 27 days |
| 1945 | 22 days |
| 1946 | 34 days |
| 1947 | 26 days |
| 1948 | 21 days |
| 1949 | 28 days |
| 1950 | 29 days |
| 1951 | 16 days |
| 1952 | 33 days |
| 1953 | 24 days |
| 1954 | 30 days |
| 1955 | 20 days |
| 1956 | 21 days |
| 1957 | 35 days |
| 1958 | 40 days |
| 1959 | 26 days |
| 1960 | 34 days |
| 1961 | 18 days |
| 1962 | 34 days |
| 1963 | 25 days |
| 1964 | 25 days |
| 1965 | 21 days |
| 1966 | 21 days |
| 1967 | 17 days |
| 1968 | 39 days |
| 1969 | 18 days |
| 1970 | 33 days |
| 1971 | 31 days |
| 1972 | 20 days |
| 1973 | 17 days |
| 1974 | 16 days |
| 1975 | 24 days |
| 1976 | 38 days |
| 1977 | 18 days |
| 1978 | 20 days |
| 1979 | 23 days |
| 1980 | 31 days |
| 1981 | 30 days |
| 1982 | 13 days |
| 1983 | 17 days |
| 1984 | 12 days |
| 1985 | 17 days |
| 1986 | 32 days |
| 1987 | 35 days |
| 1988 | 19 days |
| 1989 | 25 days |
| 1990 | 18 days |
| 1991 | 36 days |
| 1992 | 21 days |
| 1993 | 22 days |
| 1994 | 23 days |
| 1995 | 31 days |
| 1996 | 26 days |
| 1997 | 20 days |
| 1998 | 26 days |
| 1999 | 20 days |
| 2000 | 21 days |
| 2001 | 18 days |
| 2002 | 36 days |
| 2003 | 21 days |
| 2004 | 25 days |
| 2005 | 16 days |
| 2006 | 18 days |
| 2007 | 30 days |
| 2008 | 13 days |
| 2009 | 39 days |
| 2010 | 26 days |
| 2011 | 5 days |
| 2012 | 21 days |
| 2013 | 26 days |
| 2014 | 16 days |
| 2015 | 26 days |
| 2016 | 27 days |
| 2017 | 35 days |
| 2018 | 23 days |
| 2019 | 11 days |
| 2020 | 21 days |
| 2021 | 28 days |
| 2022 | 26 days |
| 2023 | 25 days |
| 2024 | 35 days |
| 2025 | 41 days |
| 2026 | 16 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
122 years with a frostAcross 122 years with a frost, the median last spring frost at Iowa Falls falls on 4 May and the median first autumn frost on 2 October, which leaves a median of 154 days between them.
In 1994 to 2025 the median growing season was 162 days. That is 22 days more than in 1893 to 1923.
Fitted over all years, the growing season changes by +2.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1893 to 1923) | Recent period (1994 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 4 May | 10 May | 29 April | 11 days earlier | -0.9 days per decade |
| First autumn frost | 2 October | 25 September | 11 October | 16 days later | +1.3 days per decade |
| Growing days | 154 days | 140 days | 162 days | 22 days more | +2.2 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
122 years, 1894 to 2025A day with at least 62.8 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 146.4 mm (5.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 62.8 mm (2.5 in) | |
| 5 years | 82.9 mm (3.3 in) | |
| 10 years | 97.0 mm (3.8 in) | |
| 25 years | 116.0 mm (4.6 in) | |
| 50 years | 130.9 mm (5.2 in) | |
| 100 years | 146.4 mm (5.8 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 122 years of values from 1894 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: 158.8 mm (6.3 in) in 1964; 142.7 mm (5.6 in) in 1942; 132.8 mm (5.2 in) in 1924.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Iowa Falls had a mean temperature of 8.6 C (47.5 F) and 961.2 mm (37.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Paw Paw 2S (United States, 365 km away), Rockford Gtr Rockford AP (United States, 344 km away) and Marengo (United States, 383 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Paw Paw 2S | United States | 365 km (227 mi) | 8.4 C (47.1 F) | 907.5 mm (35.7 in) | 0.72 |
| Rockford Gtr Rockford AP | United States | 344 km (214 mi) | 8.7 C (47.7 F) | 942.7 mm (37.1 in) | 0.75 |
| Marengo | United States | 383 km (238 mi) | 8.7 C (47.6 F) | 896.9 mm (35.3 in) | 0.84 |
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).