Knoxville Weather Records (USC00134502)
Record envelope, standing records and threshold days for Knoxville (USC00134502), Iowa, United States, with 131 years of record.
Key Facts for Knoxville
- Knoxville (USC00134502) is a weather station in Iowa, United States at 41.32 latitude and -93.10 longitude, 273 m (895 ft) above sea level.
- The station reports from 1893 to 2023, 131 years of record.
- 1,464 records set at Knoxville still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Knoxville set a daily record precipitation of 56.9 mm (2.2 in) on 14 May 2023.
About the Station
- Location: Iowa, United States, 41.32 latitude, -93.10 longitude.
- Elevation: 273 m (895 ft).
- Period of record: 1893 to 2023, 131 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 21.1 C (70.0 F) | -34.4 C (-29.9 F) | n/a | n/a |
| Feb | 25.6 C (78.1 F) | -33.9 C (-29.0 F) | n/a | n/a |
| Mar | 31.7 C (89.1 F) | -28.3 C (-18.9 F) | n/a | n/a |
| Apr | 33.3 C (91.9 F) | -12.8 C (9.0 F) | n/a | n/a |
| May | 41.1 C (106.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Jun | 40.6 C (105.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Jul | 45.0 C (113.0 F) | 7.2 C (45.0 F) | n/a | n/a |
| Aug | 45.6 C (114.1 F) | 4.4 C (39.9 F) | n/a | n/a |
| Sep | 40.0 C (104.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Oct | 36.1 C (97.0 F) | -16.7 C (1.9 F) | n/a | n/a |
| Nov | 28.3 C (82.9 F) | -20.6 C (-5.1 F) | n/a | n/a |
| Dec | 23.3 C (73.9 F) | -32.2 C (-26.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 8 |
| 1894 | 11 |
| 1895 | 17 |
| 1896 | 10 |
| 1897 | 14 |
| 1898 | 10 |
| 1899 | 17 |
| 1900 | 9 |
| 1901 | 13 |
| 1902 | 6 |
| 1904 | 4 |
| 1905 | 8 |
| 1906 | 8 |
| 1907 | 12 |
| 1908 | 7 |
| 1909 | 18 |
| 1910 | 12 |
| 1911 | 23 |
| 1912 | 16 |
| 1913 | 8 |
| 1914 | 7 |
| 1915 | 8 |
| 1916 | 6 |
| 1917 | 24 |
| 1918 | 25 |
| 1919 | 9 |
| 1920 | 10 |
| 1921 | 12 |
| 1922 | 5 |
| 1923 | 13 |
| 1924 | 17 |
| 1925 | 24 |
| 1926 | 10 |
| 1927 | 10 |
| 1928 | 10 |
| 1929 | 13 |
| 1930 | 31 |
| 1931 | 14 |
| 1932 | 8 |
| 1933 | 14 |
| 1934 | 37 |
| 1935 | 6 |
| 1936 | 38 |
| 1937 | 18 |
| 1938 | 22 |
| 1939 | 30 |
| 1940 | 13 |
| 1941 | 16 |
| 1942 | 7 |
| 1943 | 6 |
| 1944 | 10 |
| 1945 | 9 |
| 1946 | 15 |
| 1947 | 23 |
| 1948 | 8 |
| 1949 | 11 |
| 1950 | 15 |
| 1951 | 11 |
| 1952 | 12 |
| 1953 | 9 |
| 1954 | 8 |
| 1955 | 6 |
| 1956 | 9 |
| 1957 | 5 |
| 1958 | 9 |
| 1959 | 11 |
| 1960 | 9 |
| 1961 | 3 |
| 1962 | 9 |
| 1963 | 13 |
| 1964 | 11 |
| 1965 | 10 |
| 1966 | 18 |
| 1967 | 7 |
| 1968 | 9 |
| 1969 | 8 |
| 1970 | 14 |
| 1971 | 4 |
| 1972 | 11 |
| 1973 | 7 |
| 1974 | 8 |
| 1975 | 10 |
| 1976 | 10 |
| 1977 | 6 |
| 1978 | 4 |
| 1979 | 3 |
| 1980 | 8 |
| 1981 | 8 |
| 1982 | 2 |
| 1983 | 22 |
| 1984 | 13 |
| 1985 | 5 |
| 1986 | 9 |
| 1987 | 16 |
| 1988 | 16 |
| 1989 | 17 |
| 1990 | 17 |
| 1991 | 14 |
| 1992 | 10 |
| 1993 | 8 |
| 1994 | 7 |
| 1995 | 6 |
| 1996 | 12 |
| 1997 | 6 |
| 1998 | 15 |
| 1999 | 9 |
| 2000 | 16 |
| 2001 | 9 |
| 2002 | 8 |
| 2003 | 5 |
| 2004 | 5 |
| 2005 | 3 |
| 2006 | 9 |
| 2007 | 11 |
| 2008 | 10 |
| 2009 | 6 |
| 2010 | 3 |
| 2011 | 12 |
| 2012 | 20 |
| 2013 | 5 |
| 2014 | 12 |
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 11 |
| 2018 | 14 |
| 2019 | 10 |
| 2020 | 8 |
| 2021 | 11 |
| 2022 | 7 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1930-07-28 | Record high minimum temperature | Record high minimum temperature 28.9 C (84.0 F) |
| 1934-08-08 | Record high maximum temperature | Record high maximum temperature 45.6 C (114.1 F) |
| 1952-11-17 | Record daily precipitation | Record daily precipitation 154.4 mm (6.1 in) |
| 1996-02-02 | Record low maximum temperature | Record low maximum temperature -24.4 C (-11.9 F) |
Wettest Day of Each Month
Nov: 154.4 mm (6.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 61.2 mm (2.4 in) | 12 January 1960 |
| Feb | 108.0 mm (4.3 in) | 24 February 2001 |
| Mar | 47.0 mm (1.9 in) | 16 March 1919 |
| Apr | 106.2 mm (4.2 in) | 18 April 2013 |
| May | 99.8 mm (3.9 in) | 7 May 2007 |
| Jun | 138.7 mm (5.5 in) | 10 June 2011 |
| Jul | 111.8 mm (4.4 in) | 29 July 2015 |
| Aug | 97.3 mm (3.8 in) | 15 August 1908 |
| Sep | 142.2 mm (5.6 in) | 14 September 1914 |
| Oct | 108.0 mm (4.3 in) | 9 October 2018 |
| Nov | 154.4 mm (6.1 in) | 17 November 1952 |
| Dec | 47.5 mm (1.9 in) | 14 December 2015 |
Period of Record Coverage
1893 to 2023| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 203 | 56% | No |
| 1894 | 293 | 80% | No |
| 1895 | 349 | 96% | Yes |
| 1896 | 357 | 98% | Yes |
| 1897 | 354 | 97% | Yes |
| 1898 | 362 | 99% | Yes |
| 1899 | 360 | 99% | Yes |
| 1900 | 363 | 99% | Yes |
| 1901 | 356 | 98% | Yes |
| 1902 | 149 | 41% | No |
| 1903 | 31 | 8% | No |
| 1904 | 241 | 66% | No |
| 1905 | 330 | 90% | Yes |
| 1906 | 365 | 100% | Yes |
| 1907 | 333 | 91% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 304 | 83% | No |
| 1910 | 365 | 100% | Yes |
| 1911 | 364 | 100% | Yes |
| 1912 | 364 | 99% | Yes |
| 1913 | 210 | 58% | No |
| 1914 | 273 | 75% | No |
| 1915 | 153 | 42% | No |
| 1916 | 273 | 75% | No |
| 1917 | 365 | 100% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 334 | 91% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 364 | 100% | Yes |
| 1923 | 363 | 99% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 364 | 100% | Yes |
| 1930 | 364 | 100% | Yes |
| 1931 | 364 | 100% | Yes |
| 1932 | 365 | 100% | Yes |
| 1933 | 364 | 100% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 363 | 99% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 364 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 365 | 100% | Yes |
| 1941 | 315 | 86% | No |
| 1942 | 363 | 99% | Yes |
| 1943 | 362 | 99% | Yes |
| 1944 | 364 | 99% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 353 | 97% | Yes |
| 1947 | 361 | 99% | Yes |
| 1948 | 363 | 99% | Yes |
| 1949 | 356 | 98% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 363 | 99% | Yes |
| 1952 | 361 | 99% | Yes |
| 1953 | 359 | 98% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 363 | 99% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 363 | 99% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 334 | 92% | Yes |
| 1972 | 364 | 99% | Yes |
| 1973 | 361 | 99% | Yes |
| 1974 | 361 | 99% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 364 | 99% | Yes |
| 1977 | 333 | 91% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 364 | 99% | Yes |
| 1981 | 363 | 99% | Yes |
| 1982 | 359 | 98% | Yes |
| 1983 | 361 | 99% | Yes |
| 1984 | 328 | 90% | No |
| 1985 | 362 | 99% | Yes |
| 1986 | 355 | 97% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 359 | 98% | Yes |
| 1992 | 339 | 93% | Yes |
| 1993 | 359 | 98% | Yes |
| 1994 | 361 | 99% | Yes |
| 1995 | 364 | 100% | Yes |
| 1996 | 362 | 99% | Yes |
| 1997 | 359 | 98% | Yes |
| 1998 | 352 | 96% | Yes |
| 1999 | 346 | 95% | Yes |
| 2000 | 354 | 97% | Yes |
| 2001 | 358 | 98% | Yes |
| 2002 | 332 | 91% | Yes |
| 2003 | 277 | 76% | No |
| 2004 | 259 | 71% | No |
| 2005 | 274 | 75% | No |
| 2006 | 328 | 90% | No |
| 2007 | 316 | 87% | No |
| 2008 | 337 | 92% | Yes |
| 2009 | 306 | 84% | No |
| 2010 | 292 | 80% | No |
| 2011 | 291 | 80% | No |
| 2012 | 340 | 93% | Yes |
| 2013 | 360 | 99% | Yes |
| 2014 | 343 | 94% | Yes |
| 2015 | 348 | 95% | Yes |
| 2016 | 351 | 96% | Yes |
| 2017 | 350 | 96% | Yes |
| 2018 | 346 | 95% | Yes |
| 2019 | 344 | 94% | Yes |
| 2020 | 328 | 90% | No |
| 2021 | 350 | 96% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 212 | 58% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 14 May 2023 | Knoxville, US | daily rain | 56.9 mm (2.2 in) | 11.2 mm (0.4 in) | 77 years | 42 of 100 (Notable) |
| 27 February 2023 | Knoxville, US | daily rain | 22.6 mm (0.9 in) | 9.9 mm (0.39 in) | 127 years | 20 of 100 (Routine) |
| 9 February 2023 | Knoxville, US | daily rain | 17.3 mm (0.7 in) | 4.3 mm (0.17 in) | 113 years | 20 of 100 (Routine) |
| 30 December 2022 | Knoxville, US | daily high max (Tie) | 17.2 C (63.0 F) | tie | 92 years | 9 of 100 (Routine) |
| 23 December 2022 | Knoxville, US | daily low max (Tie) | -20.6 C (-5.1 F) | tie | 39 years | 5 of 100 (Routine) |
| 15 November 2022 | Knoxville, US | daily snowfall | 4.3 cm (1.7 in) | 1.8 cm (0.7 in) | 124 years | 20 of 100 (Routine) |
| 10 November 2022 | Knoxville, US | daily high min | 12.2 C (54.0 F) | 0.5 C (0.9 F) | 112 years | 40 of 100 (Notable) |
| 5 November 2022 | Knoxville, US | daily rain | 61.7 mm (2.4 in) | 26.1 mm (1.0 in) | 116 years | 60 of 100 (Major) |
| 18 October 2022 | Knoxville, US | daily low min | -6.1 C (21.0 F) | 0.5 C (0.9 F) | 73 years | 32 of 100 (Routine) |
| 18 October 2022 | Knoxville, US | daily low max (Tie) | 5.6 C (42.1 F) | tie | 123 years | 10 of 100 (Routine) |
| 14 June 2022 | Knoxville, US | daily high min | 24.4 C (75.9 F) | 0.5 C (0.9 F) | 40 years | 23 of 100 (Routine) |
| 13 May 2022 | Knoxville, US | daily high max (Tie) | 32.8 C (91.0 F) | tie | 81 years | 8 of 100 (Routine) |
| 12 May 2022 | Knoxville, US | daily high min | 20.6 C (69.1 F) | 1.2 C (2.2 F) | 52 years | 27 of 100 (Routine) |
| 10 May 2022 | Knoxville, US | daily high max | 32.2 C (90.0 F) | 0.5 C (0.9 F) | 111 years | 40 of 100 (Notable) |
| 20 April 2022 | Knoxville, US | daily low min | -5.0 C (23.0 F) | 1.7 C (3.1 F) | 68 years | 33 of 100 (Routine) |
| 19 April 2022 | Knoxville, US | daily low min | -4.4 C (24.1 F) | 0.5 C (0.9 F) | 33 years | 20 of 100 (Routine) |
| 18 April 2022 | Knoxville, US | daily snowfall | 7.1 cm (2.8 in) | 5.8 cm (2.3 in) | 115 years | 48 of 100 (Notable) |
| 18 April 2022 | Knoxville, US | daily snow depth | 2.5 cm (1.0 in) | 2.5 cm (1.0 in) | 73 years | 20 of 100 (Routine) |
| 18 April 2022 | Knoxville, US | daily low max (Tie) | 4.4 C (39.9 F) | tie | 83 years | 8 of 100 (Routine) |
| 31 March 2022 | Knoxville, US | daily snow depth | 2.5 cm (1.0 in) | 2.5 cm (1.0 in) | 120 years | 20 of 100 (Routine) |
Climate Trend
104 complete years, 1895 to 2022| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1895 | 9.2 C | -1.26 C |
| 1896 | 10.2 C | -0.17 C |
| 1897 | 10.2 C | -0.23 C |
| 1898 | 10.1 C | -0.36 C |
| 1899 | 9.9 C | -0.51 C |
| 1900 | 10.6 C | +0.14 C |
| 1901 | 10.5 C | +0.11 C |
| 1906 | 10.4 C | -0.02 C |
| 1908 | 11.0 C | +0.57 C |
| 1910 | 10.8 C | +0.34 C |
| 1911 | 11.3 C | +0.89 C |
| 1912 | 9.4 C | -1.04 C |
| 1917 | 8.5 C | -1.91 C |
| 1918 | 10.8 C | +0.37 C |
| 1919 | 10.3 C | -0.13 C |
| 1921 | 12.1 C | +1.72 C |
| 1922 | 11.2 C | +0.78 C |
| 1923 | 10.5 C | +0.05 C |
| 1924 | 9.1 C | -1.32 C |
| 1925 | 10.2 C | -0.19 C |
| 1926 | 10.0 C | -0.42 C |
| 1927 | 10.5 C | +0.12 C |
| 1928 | 10.6 C | +0.18 C |
| 1929 | 9.1 C | -1.35 C |
| 1930 | 11.2 C | +0.81 C |
| 1931 | 12.4 C | +2.03 C |
| 1932 | 10.1 C | -0.34 C |
| 1933 | 11.5 C | +1.13 C |
| 1934 | 12.1 C | +1.71 C |
| 1935 | 9.9 C | -0.47 C |
| 1936 | 10.5 C | +0.04 C |
| 1937 | 9.7 C | -0.67 C |
| 1938 | 12.1 C | +1.72 C |
| 1939 | 11.8 C | +1.39 C |
| 1940 | 9.8 C | -0.65 C |
| 1942 | 10.7 C | +0.26 C |
| 1943 | 10.1 C | -0.27 C |
| 1944 | 10.7 C | +0.31 C |
| 1945 | 9.9 C | -0.48 C |
| 1946 | 12.0 C | +1.58 C |
| 1947 | 11.2 C | +0.78 C |
| 1948 | 11.2 C | +0.80 C |
| 1949 | 11.0 C | +0.56 C |
| 1950 | 9.5 C | -0.93 C |
| 1951 | 9.0 C | -1.45 C |
| 1952 | 10.7 C | +0.26 C |
| 1953 | 11.9 C | +1.52 C |
| 1954 | 11.8 C | +1.42 C |
| 1955 | 10.9 C | +0.53 C |
| 1956 | 11.1 C | +0.72 C |
| 1957 | 10.2 C | -0.20 C |
| 1958 | 9.8 C | -0.57 C |
| 1959 | 9.8 C | -0.57 C |
| 1960 | 9.2 C | -1.25 C |
| 1961 | 10.1 C | -0.34 C |
| 1962 | 9.8 C | -0.59 C |
| 1963 | 10.4 C | -0.01 C |
| 1964 | 11.0 C | +0.58 C |
| 1965 | 9.8 C | -0.63 C |
| 1966 | 9.0 C | -1.40 C |
| 1967 | 10.0 C | -0.38 C |
| 1968 | 10.6 C | +0.18 C |
| 1969 | 10.1 C | -0.36 C |
| 1970 | 10.5 C | +0.06 C |
| 1972 | 9.6 C | -0.82 C |
| 1973 | 11.2 C | +0.80 C |
| 1974 | 10.3 C | -0.08 C |
| 1975 | 10.3 C | -0.07 C |
| 1976 | 10.2 C | -0.17 C |
| 1978 | 9.3 C | -1.07 C |
| 1979 | 9.3 C | -1.10 C |
| 1980 | 11.0 C | +0.63 C |
| 1981 | 11.8 C | +1.34 C |
| 1982 | 10.1 C | -0.36 C |
| 1983 | 11.0 C | +0.57 C |
| 1985 | 9.9 C | -0.56 C |
| 1986 | 11.6 C | +1.17 C |
| 1987 | 12.4 C | +1.95 C |
| 1988 | 10.7 C | +0.32 C |
| 1989 | 9.5 C | -0.92 C |
| 1990 | 11.2 C | +0.82 C |
| 1991 | 11.0 C | +0.62 C |
| 1993 | 9.2 C | -1.21 C |
| 1994 | 10.2 C | -0.21 C |
| 1995 | 9.9 C | -0.53 C |
| 1996 | 9.0 C | -1.38 C |
| 1997 | 9.5 C | -0.90 C |
| 1998 | 11.5 C | +1.10 C |
| 2001 | 10.4 C | +0.03 C |
| 2002 | 10.7 C | +0.26 C |
| 2006 | 11.7 C | +1.24 C |
| 2008 | 8.3 C | -2.08 C |
| 2010 | 10.5 C | +0.05 C |
| 2012 | 12.4 C | +1.94 C |
| 2013 | 9.3 C | -1.11 C |
| 2014 | 8.4 C | -2.02 C |
| 2015 | 10.6 C | +0.15 C |
| 2016 | 11.3 C | +0.87 C |
| 2017 | 11.1 C | +0.68 C |
| 2018 | 9.6 C | -0.85 C |
| 2019 | 9.4 C | -1.04 C |
| 2020 | 10.3 C | -0.16 C |
| 2021 | 10.6 C | +0.23 C |
| 2022 | 9.3 C | -1.16 C |
The fitted trend in annual mean temperature here over 1895 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: -0.03 F (-0.13 to 0.06) per decade. The slope is a straight line fitted to 104 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 | -0.03 F (-0.13 to 0.06) per decade | 1895 to 2022 | 104 | Not clearly different from zero |
| Mean daily maximum | -0.08 C (-0.14 to -0.02) per decade | -0.14 F (-0.25 to -0.03) per decade | 1895 to 2022 | 104 | Fall |
| Mean daily minimum | 0.04 C (-0.01 to 0.09) per decade | 0.07 F (-0.02 to 0.16) per decade | 1895 to 2022 | 104 | 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
1893 to 2023| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.6 C (114.1 F) | 1934 | 36.7 C (98.1 F) | 131 |
| Coldest night (TNn) | -34.4 C (-29.9 F) | 1912 | -25.6 C (-14.1 F) | 131 |
| Wettest day (Rx1day) | 154.4 mm (6.1 in) | 1952 | 66.0 mm (2.6 in) | 131 |
| Wettest five days (Rx5day) | 243.0 mm (9.6 in) | 1914 | 96.0 mm (3.8 in) | 130 |
| Longest dry spell (CDD) | 56 days | 2002 | 23 days | 131 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 36.1 C (97.0 F) |
| 1894 | 40.0 C (104.0 F) |
| 1895 | 36.1 C (97.0 F) |
| 1896 | 36.1 C (97.0 F) |
| 1897 | 36.7 C (98.1 F) |
| 1898 | 36.1 C (97.0 F) |
| 1899 | 36.7 C (98.1 F) |
| 1900 | 35.6 C (96.1 F) |
| 1901 | 42.8 C (109.0 F) |
| 1902 | 34.4 C (93.9 F) |
| 1903 | 13.3 C (55.9 F) |
| 1904 | 33.9 C (93.0 F) |
| 1905 | 33.9 C (93.0 F) |
| 1906 | 35.6 C (96.1 F) |
| 1907 | 36.7 C (98.1 F) |
| 1908 | 36.1 C (97.0 F) |
| 1909 | 35.6 C (96.1 F) |
| 1910 | 36.7 C (98.1 F) |
| 1911 | 42.8 C (109.0 F) |
| 1912 | 36.7 C (98.1 F) |
| 1913 | 38.3 C (100.9 F) |
| 1914 | 37.2 C (99.0 F) |
| 1915 | 31.1 C (88.0 F) |
| 1916 | 40.0 C (104.0 F) |
| 1917 | 38.9 C (102.0 F) |
| 1918 | 45.0 C (113.0 F) |
| 1919 | 38.9 C (102.0 F) |
| 1920 | 35.0 C (95.0 F) |
| 1921 | 36.7 C (98.1 F) |
| 1922 | 35.6 C (96.1 F) |
| 1923 | 36.1 C (97.0 F) |
| 1924 | 36.1 C (97.0 F) |
| 1925 | 39.4 C (102.9 F) |
| 1926 | 37.2 C (99.0 F) |
| 1927 | 37.8 C (100.0 F) |
| 1928 | 34.4 C (93.9 F) |
| 1929 | 35.6 C (96.1 F) |
| 1930 | 42.2 C (108.0 F) |
| 1931 | 40.0 C (104.0 F) |
| 1932 | 35.0 C (95.0 F) |
| 1933 | 38.3 C (100.9 F) |
| 1934 | 45.6 C (114.1 F) |
| 1935 | 36.1 C (97.0 F) |
| 1936 | 44.4 C (111.9 F) |
| 1937 | 38.9 C (102.0 F) |
| 1938 | 40.6 C (105.1 F) |
| 1939 | 40.0 C (104.0 F) |
| 1940 | 42.2 C (108.0 F) |
| 1941 | 39.4 C (102.9 F) |
| 1942 | 36.7 C (98.1 F) |
| 1943 | 36.7 C (98.1 F) |
| 1944 | 37.8 C (100.0 F) |
| 1945 | 36.1 C (97.0 F) |
| 1946 | 36.7 C (98.1 F) |
| 1947 | 40.6 C (105.1 F) |
| 1948 | 40.0 C (104.0 F) |
| 1949 | 35.0 C (95.0 F) |
| 1950 | 34.4 C (93.9 F) |
| 1951 | 36.1 C (97.0 F) |
| 1952 | 37.8 C (100.0 F) |
| 1953 | 36.7 C (98.1 F) |
| 1954 | 39.4 C (102.9 F) |
| 1955 | 41.7 C (107.1 F) |
| 1956 | 40.0 C (104.0 F) |
| 1957 | 37.8 C (100.0 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 33.3 C (91.9 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 35.0 C (95.0 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 37.8 C (100.0 F) |
| 1967 | 36.7 C (98.1 F) |
| 1968 | 36.1 C (97.0 F) |
| 1969 | 35.0 C (95.0 F) |
| 1970 | 37.8 C (100.0 F) |
| 1971 | 36.1 C (97.0 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 34.4 C (93.9 F) |
| 1974 | 38.3 C (100.9 F) |
| 1975 | 36.1 C (97.0 F) |
| 1976 | 35.6 C (96.1 F) |
| 1977 | 39.4 C (102.9 F) |
| 1978 | 37.2 C (99.0 F) |
| 1979 | 37.2 C (99.0 F) |
| 1980 | 41.7 C (107.1 F) |
| 1981 | 35.6 C (96.1 F) |
| 1982 | 36.7 C (98.1 F) |
| 1983 | 40.6 C (105.1 F) |
| 1984 | 40.0 C (104.0 F) |
| 1985 | 38.3 C (100.9 F) |
| 1986 | 35.6 C (96.1 F) |
| 1987 | 37.8 C (100.0 F) |
| 1988 | 40.0 C (104.0 F) |
| 1989 | 37.8 C (100.0 F) |
| 1990 | 36.1 C (97.0 F) |
| 1991 | 36.7 C (98.1 F) |
| 1992 | 33.3 C (91.9 F) |
| 1993 | 36.7 C (98.1 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 37.8 C (100.0 F) |
| 1996 | 35.6 C (96.1 F) |
| 1997 | 36.1 C (97.0 F) |
| 1998 | 36.1 C (97.0 F) |
| 1999 | 37.2 C (99.0 F) |
| 2000 | 36.1 C (97.0 F) |
| 2001 | 38.3 C (100.9 F) |
| 2002 | 35.6 C (96.1 F) |
| 2003 | 38.9 C (102.0 F) |
| 2004 | 33.9 C (93.0 F) |
| 2005 | 37.8 C (100.0 F) |
| 2006 | 38.3 C (100.9 F) |
| 2007 | 34.4 C (93.9 F) |
| 2008 | 33.9 C (93.0 F) |
| 2009 | 36.1 C (97.0 F) |
| 2010 | 35.6 C (96.1 F) |
| 2011 | 37.8 C (100.0 F) |
| 2012 | 41.1 C (106.0 F) |
| 2013 | 38.9 C (102.0 F) |
| 2014 | 33.3 C (91.9 F) |
| 2015 | 35.0 C (95.0 F) |
| 2016 | 35.6 C (96.1 F) |
| 2017 | 37.2 C (99.0 F) |
| 2018 | 36.1 C (97.0 F) |
| 2019 | 35.6 C (96.1 F) |
| 2020 | 35.6 C (96.1 F) |
| 2021 | 35.6 C (96.1 F) |
| 2022 | 36.7 C (98.1 F) |
| 2023 | 36.7 C (98.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -22.2 C (-8.0 F) |
| 1894 | -30.0 C (-22.0 F) |
| 1895 | -28.9 C (-20.0 F) |
| 1896 | -23.3 C (-9.9 F) |
| 1897 | -27.2 C (-17.0 F) |
| 1898 | -23.3 C (-9.9 F) |
| 1899 | -30.6 C (-23.1 F) |
| 1900 | -22.8 C (-9.0 F) |
| 1901 | -27.2 C (-17.0 F) |
| 1902 | -27.2 C (-17.0 F) |
| 1903 | -23.3 C (-9.9 F) |
| 1904 | -27.2 C (-17.0 F) |
| 1905 | -32.2 C (-26.0 F) |
| 1906 | -22.2 C (-8.0 F) |
| 1907 | -25.6 C (-14.1 F) |
| 1908 | -21.7 C (-7.1 F) |
| 1909 | -25.6 C (-14.1 F) |
| 1910 | -25.6 C (-14.1 F) |
| 1911 | -26.1 C (-15.0 F) |
| 1912 | -34.4 C (-29.9 F) |
| 1913 | -27.8 C (-18.0 F) |
| 1914 | -26.1 C (-15.0 F) |
| 1915 | -28.3 C (-18.9 F) |
| 1916 | -28.9 C (-20.0 F) |
| 1917 | -30.0 C (-22.0 F) |
| 1918 | -30.0 C (-22.0 F) |
| 1919 | -31.1 C (-24.0 F) |
| 1920 | -26.1 C (-15.0 F) |
| 1921 | -23.3 C (-9.9 F) |
| 1922 | -21.7 C (-7.1 F) |
| 1923 | -23.9 C (-11.0 F) |
| 1924 | -32.2 C (-26.0 F) |
| 1925 | -23.9 C (-11.0 F) |
| 1926 | -25.0 C (-13.0 F) |
| 1927 | -26.1 C (-15.0 F) |
| 1928 | -22.2 C (-8.0 F) |
| 1929 | -26.7 C (-16.1 F) |
| 1930 | -32.8 C (-27.0 F) |
| 1931 | -17.8 C (0.0 F) |
| 1932 | -27.8 C (-18.0 F) |
| 1933 | -28.9 C (-20.0 F) |
| 1934 | -24.4 C (-11.9 F) |
| 1935 | -24.4 C (-11.9 F) |
| 1936 | -31.1 C (-24.0 F) |
| 1937 | -20.6 C (-5.1 F) |
| 1938 | -21.7 C (-7.1 F) |
| 1939 | -22.2 C (-8.0 F) |
| 1940 | -26.7 C (-16.1 F) |
| 1941 | -17.8 C (0.0 F) |
| 1942 | -28.3 C (-18.9 F) |
| 1943 | -27.2 C (-17.0 F) |
| 1944 | -25.0 C (-13.0 F) |
| 1945 | -22.2 C (-8.0 F) |
| 1946 | -22.2 C (-8.0 F) |
| 1947 | -28.9 C (-20.0 F) |
| 1948 | -23.9 C (-11.0 F) |
| 1949 | -25.0 C (-13.0 F) |
| 1950 | -22.2 C (-8.0 F) |
| 1951 | -26.1 C (-15.0 F) |
| 1952 | -23.9 C (-11.0 F) |
| 1953 | -20.6 C (-5.1 F) |
| 1954 | -23.9 C (-11.0 F) |
| 1955 | -25.6 C (-14.1 F) |
| 1956 | -23.9 C (-11.0 F) |
| 1957 | -27.8 C (-18.0 F) |
| 1958 | -28.3 C (-18.9 F) |
| 1959 | -26.1 C (-15.0 F) |
| 1960 | -28.3 C (-18.9 F) |
| 1961 | -25.0 C (-13.0 F) |
| 1962 | -26.7 C (-16.1 F) |
| 1963 | -30.0 C (-22.0 F) |
| 1964 | -23.3 C (-9.9 F) |
| 1965 | -27.8 C (-18.0 F) |
| 1966 | -31.1 C (-24.0 F) |
| 1967 | -26.7 C (-16.1 F) |
| 1968 | -26.1 C (-15.0 F) |
| 1969 | -25.0 C (-13.0 F) |
| 1970 | -31.1 C (-24.0 F) |
| 1971 | -27.8 C (-18.0 F) |
| 1972 | -27.8 C (-18.0 F) |
| 1973 | -24.4 C (-11.9 F) |
| 1974 | -30.0 C (-22.0 F) |
| 1975 | -26.1 C (-15.0 F) |
| 1976 | -25.0 C (-13.0 F) |
| 1977 | -28.9 C (-20.0 F) |
| 1978 | -25.0 C (-13.0 F) |
| 1979 | -28.9 C (-20.0 F) |
| 1980 | -21.7 C (-7.1 F) |
| 1981 | -27.2 C (-17.0 F) |
| 1982 | -30.0 C (-22.0 F) |
| 1983 | -28.9 C (-20.0 F) |
| 1984 | -26.1 C (-15.0 F) |
| 1985 | -29.4 C (-20.9 F) |
| 1986 | -24.4 C (-11.9 F) |
| 1987 | -22.8 C (-9.0 F) |
| 1988 | -26.7 C (-16.1 F) |
| 1989 | -31.1 C (-24.0 F) |
| 1990 | -23.9 C (-11.0 F) |
| 1991 | -23.9 C (-11.0 F) |
| 1992 | -22.2 C (-8.0 F) |
| 1993 | -22.2 C (-8.0 F) |
| 1994 | -28.9 C (-20.0 F) |
| 1995 | -22.8 C (-9.0 F) |
| 1996 | -33.9 C (-29.0 F) |
| 1997 | -25.6 C (-14.1 F) |
| 1998 | -23.3 C (-9.9 F) |
| 1999 | -26.1 C (-15.0 F) |
| 2000 | -28.3 C (-18.9 F) |
| 2001 | -23.9 C (-11.0 F) |
| 2002 | -20.0 C (-4.0 F) |
| 2003 | -21.7 C (-7.1 F) |
| 2004 | -20.6 C (-5.1 F) |
| 2005 | -22.2 C (-8.0 F) |
| 2006 | -21.1 C (-6.0 F) |
| 2007 | -21.7 C (-7.1 F) |
| 2008 | -25.0 C (-13.0 F) |
| 2009 | -29.4 C (-20.9 F) |
| 2010 | -26.1 C (-15.0 F) |
| 2011 | -22.8 C (-9.0 F) |
| 2012 | -16.7 C (1.9 F) |
| 2013 | -25.0 C (-13.0 F) |
| 2014 | -25.6 C (-14.1 F) |
| 2015 | -23.3 C (-9.9 F) |
| 2016 | -25.6 C (-14.1 F) |
| 2017 | -23.9 C (-11.0 F) |
| 2018 | -29.4 C (-20.9 F) |
| 2019 | -30.0 C (-22.0 F) |
| 2020 | -22.2 C (-8.0 F) |
| 2021 | -26.7 C (-16.1 F) |
| 2022 | -25.6 C (-14.1 F) |
| 2023 | -20.0 C (-4.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 57.2 mm (2.3 in) |
| 1894 | 53.3 mm (2.1 in) |
| 1895 | 41.9 mm (1.6 in) |
| 1896 | 86.4 mm (3.4 in) |
| 1897 | 74.9 mm (2.9 in) |
| 1898 | 50.8 mm (2.0 in) |
| 1899 | 85.6 mm (3.4 in) |
| 1900 | 85.3 mm (3.4 in) |
| 1901 | 45.0 mm (1.8 in) |
| 1902 | 66.0 mm (2.6 in) |
| 1903 | 3.8 mm (0.15 in) |
| 1904 | 48.3 mm (1.9 in) |
| 1905 | 63.5 mm (2.5 in) |
| 1906 | 82.6 mm (3.3 in) |
| 1907 | 74.9 mm (2.9 in) |
| 1908 | 97.3 mm (3.8 in) |
| 1909 | 56.4 mm (2.2 in) |
| 1910 | 49.3 mm (1.9 in) |
| 1911 | 43.7 mm (1.7 in) |
| 1912 | 61.0 mm (2.4 in) |
| 1913 | 92.5 mm (3.6 in) |
| 1914 | 142.2 mm (5.6 in) |
| 1915 | 67.3 mm (2.6 in) |
| 1916 | 66.8 mm (2.6 in) |
| 1917 | 67.3 mm (2.6 in) |
| 1918 | 83.8 mm (3.3 in) |
| 1919 | 63.5 mm (2.5 in) |
| 1920 | 53.3 mm (2.1 in) |
| 1921 | 78.7 mm (3.1 in) |
| 1922 | 63.5 mm (2.5 in) |
| 1923 | 100.3 mm (3.9 in) |
| 1924 | 47.8 mm (1.9 in) |
| 1925 | 83.6 mm (3.3 in) |
| 1926 | 61.0 mm (2.4 in) |
| 1927 | 44.5 mm (1.8 in) |
| 1928 | 47.0 mm (1.9 in) |
| 1929 | 34.3 mm (1.4 in) |
| 1930 | 72.4 mm (2.9 in) |
| 1931 | 42.2 mm (1.7 in) |
| 1932 | 69.9 mm (2.8 in) |
| 1933 | 54.6 mm (2.1 in) |
| 1934 | 67.8 mm (2.7 in) |
| 1935 | 80.0 mm (3.1 in) |
| 1936 | 44.5 mm (1.8 in) |
| 1937 | 38.9 mm (1.5 in) |
| 1938 | 45.2 mm (1.8 in) |
| 1939 | 41.9 mm (1.6 in) |
| 1940 | 50.8 mm (2.0 in) |
| 1941 | 68.3 mm (2.7 in) |
| 1942 | 58.7 mm (2.3 in) |
| 1943 | 71.1 mm (2.8 in) |
| 1944 | 76.2 mm (3.0 in) |
| 1945 | 46.7 mm (1.8 in) |
| 1946 | 87.6 mm (3.4 in) |
| 1947 | 70.1 mm (2.8 in) |
| 1948 | 46.5 mm (1.8 in) |
| 1949 | 94.0 mm (3.7 in) |
| 1950 | 54.6 mm (2.1 in) |
| 1951 | 94.0 mm (3.7 in) |
| 1952 | 154.4 mm (6.1 in) |
| 1953 | 49.0 mm (1.9 in) |
| 1954 | 90.2 mm (3.6 in) |
| 1955 | 51.3 mm (2.0 in) |
| 1956 | 29.5 mm (1.2 in) |
| 1957 | 72.1 mm (2.8 in) |
| 1958 | 111.5 mm (4.4 in) |
| 1959 | 79.2 mm (3.1 in) |
| 1960 | 65.5 mm (2.6 in) |
| 1961 | 72.6 mm (2.9 in) |
| 1962 | 63.5 mm (2.5 in) |
| 1963 | 65.5 mm (2.6 in) |
| 1964 | 45.5 mm (1.8 in) |
| 1965 | 64.0 mm (2.5 in) |
| 1966 | 56.6 mm (2.2 in) |
| 1967 | 32.3 mm (1.3 in) |
| 1968 | 52.1 mm (2.1 in) |
| 1969 | 61.0 mm (2.4 in) |
| 1970 | 73.9 mm (2.9 in) |
| 1971 | 49.8 mm (2.0 in) |
| 1972 | 90.2 mm (3.6 in) |
| 1973 | 76.2 mm (3.0 in) |
| 1974 | 68.6 mm (2.7 in) |
| 1975 | 67.6 mm (2.7 in) |
| 1976 | 100.3 mm (3.9 in) |
| 1977 | 68.8 mm (2.7 in) |
| 1978 | 76.2 mm (3.0 in) |
| 1979 | 66.0 mm (2.6 in) |
| 1980 | 58.9 mm (2.3 in) |
| 1981 | 42.2 mm (1.7 in) |
| 1982 | 101.6 mm (4.0 in) |
| 1983 | 85.1 mm (3.4 in) |
| 1984 | 78.0 mm (3.1 in) |
| 1985 | 41.9 mm (1.6 in) |
| 1986 | 62.5 mm (2.5 in) |
| 1987 | 88.6 mm (3.5 in) |
| 1988 | 57.2 mm (2.3 in) |
| 1989 | 70.9 mm (2.8 in) |
| 1990 | 111.0 mm (4.4 in) |
| 1991 | 56.4 mm (2.2 in) |
| 1992 | 45.5 mm (1.8 in) |
| 1993 | 72.4 mm (2.9 in) |
| 1994 | 51.3 mm (2.0 in) |
| 1995 | 48.3 mm (1.9 in) |
| 1996 | 59.2 mm (2.3 in) |
| 1997 | 78.0 mm (3.1 in) |
| 1998 | 65.8 mm (2.6 in) |
| 1999 | 51.1 mm (2.0 in) |
| 2000 | 45.7 mm (1.8 in) |
| 2001 | 108.0 mm (4.3 in) |
| 2002 | 94.0 mm (3.7 in) |
| 2003 | 96.0 mm (3.8 in) |
| 2004 | 51.8 mm (2.0 in) |
| 2005 | 80.0 mm (3.1 in) |
| 2006 | 48.5 mm (1.9 in) |
| 2007 | 114.3 mm (4.5 in) |
| 2008 | 74.7 mm (2.9 in) |
| 2009 | 86.9 mm (3.4 in) |
| 2010 | 52.8 mm (2.1 in) |
| 2011 | 138.7 mm (5.5 in) |
| 2012 | 39.4 mm (1.6 in) |
| 2013 | 106.2 mm (4.2 in) |
| 2014 | 100.1 mm (3.9 in) |
| 2015 | 111.8 mm (4.4 in) |
| 2016 | 76.2 mm (3.0 in) |
| 2017 | 49.8 mm (2.0 in) |
| 2018 | 108.0 mm (4.3 in) |
| 2019 | 52.6 mm (2.1 in) |
| 2020 | 82.6 mm (3.3 in) |
| 2021 | 73.4 mm (2.9 in) |
| 2022 | 61.7 mm (2.4 in) |
| 2023 | 56.9 mm (2.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 57.5 mm (2.3 in) |
| 1894 | 96.4 mm (3.8 in) |
| 1895 | 53.6 mm (2.1 in) |
| 1896 | 134.3 mm (5.3 in) |
| 1897 | 126.0 mm (5.0 in) |
| 1898 | 77.8 mm (3.1 in) |
| 1899 | 125.7 mm (4.9 in) |
| 1900 | 219.9 mm (8.7 in) |
| 1901 | 67.6 mm (2.7 in) |
| 1902 | 105.7 mm (4.2 in) |
| 1903 | n/a |
| 1904 | 91.3 mm (3.6 in) |
| 1905 | 94.3 mm (3.7 in) |
| 1906 | 87.7 mm (3.5 in) |
| 1907 | 88.1 mm (3.5 in) |
| 1908 | 159.1 mm (6.3 in) |
| 1909 | 80.6 mm (3.2 in) |
| 1910 | 71.5 mm (2.8 in) |
| 1911 | 92.0 mm (3.6 in) |
| 1912 | 82.3 mm (3.2 in) |
| 1913 | 106.5 mm (4.2 in) |
| 1914 | 243.0 mm (9.6 in) |
| 1915 | 117.1 mm (4.6 in) |
| 1916 | 66.8 mm (2.6 in) |
| 1917 | 135.2 mm (5.3 in) |
| 1918 | 92.7 mm (3.6 in) |
| 1919 | 152.6 mm (6.0 in) |
| 1920 | 106.4 mm (4.2 in) |
| 1921 | 95.9 mm (3.8 in) |
| 1922 | 97.0 mm (3.8 in) |
| 1923 | 131.2 mm (5.2 in) |
| 1924 | 112.6 mm (4.4 in) |
| 1925 | 104.4 mm (4.1 in) |
| 1926 | 132.6 mm (5.2 in) |
| 1927 | 86.2 mm (3.4 in) |
| 1928 | 85.8 mm (3.4 in) |
| 1929 | 56.7 mm (2.2 in) |
| 1930 | 73.7 mm (2.9 in) |
| 1931 | 88.6 mm (3.5 in) |
| 1932 | 103.6 mm (4.1 in) |
| 1933 | 65.8 mm (2.6 in) |
| 1934 | 122.7 mm (4.8 in) |
| 1935 | 134.7 mm (5.3 in) |
| 1936 | 57.9 mm (2.3 in) |
| 1937 | 59.0 mm (2.3 in) |
| 1938 | 73.5 mm (2.9 in) |
| 1939 | 61.5 mm (2.4 in) |
| 1940 | 116.0 mm (4.6 in) |
| 1941 | 82.2 mm (3.2 in) |
| 1942 | 58.7 mm (2.3 in) |
| 1943 | 91.9 mm (3.6 in) |
| 1944 | 119.8 mm (4.7 in) |
| 1945 | 83.6 mm (3.3 in) |
| 1946 | 186.4 mm (7.3 in) |
| 1947 | 89.7 mm (3.5 in) |
| 1948 | 84.4 mm (3.3 in) |
| 1949 | 137.7 mm (5.4 in) |
| 1950 | 79.0 mm (3.1 in) |
| 1951 | 94.3 mm (3.7 in) |
| 1952 | 154.4 mm (6.1 in) |
| 1953 | 61.4 mm (2.4 in) |
| 1954 | 127.0 mm (5.0 in) |
| 1955 | 76.5 mm (3.0 in) |
| 1956 | 44.5 mm (1.8 in) |
| 1957 | 87.6 mm (3.4 in) |
| 1958 | 209.6 mm (8.3 in) |
| 1959 | 103.1 mm (4.1 in) |
| 1960 | 86.0 mm (3.4 in) |
| 1961 | 106.1 mm (4.2 in) |
| 1962 | 76.2 mm (3.0 in) |
| 1963 | 97.8 mm (3.9 in) |
| 1964 | 96.0 mm (3.8 in) |
| 1965 | 95.9 mm (3.8 in) |
| 1966 | 86.5 mm (3.4 in) |
| 1967 | 78.6 mm (3.1 in) |
| 1968 | 82.1 mm (3.2 in) |
| 1969 | 119.7 mm (4.7 in) |
| 1970 | 117.4 mm (4.6 in) |
| 1971 | 111.6 mm (4.4 in) |
| 1972 | 163.1 mm (6.4 in) |
| 1973 | 140.9 mm (5.5 in) |
| 1974 | 80.3 mm (3.2 in) |
| 1975 | 140.5 mm (5.5 in) |
| 1976 | 146.7 mm (5.8 in) |
| 1977 | 89.9 mm (3.5 in) |
| 1978 | 124.9 mm (4.9 in) |
| 1979 | 78.4 mm (3.1 in) |
| 1980 | 83.3 mm (3.3 in) |
| 1981 | 60.7 mm (2.4 in) |
| 1982 | 207.8 mm (8.2 in) |
| 1983 | 102.4 mm (4.0 in) |
| 1984 | 105.2 mm (4.1 in) |
| 1985 | 75.2 mm (3.0 in) |
| 1986 | 135.7 mm (5.3 in) |
| 1987 | 135.6 mm (5.3 in) |
| 1988 | 101.6 mm (4.0 in) |
| 1989 | 172.7 mm (6.8 in) |
| 1990 | 144.3 mm (5.7 in) |
| 1991 | 116.6 mm (4.6 in) |
| 1992 | 76.5 mm (3.0 in) |
| 1993 | 103.9 mm (4.1 in) |
| 1994 | 78.5 mm (3.1 in) |
| 1995 | 76.0 mm (3.0 in) |
| 1996 | 117.1 mm (4.6 in) |
| 1997 | 52.4 mm (2.1 in) |
| 1998 | 111.8 mm (4.4 in) |
| 1999 | 59.7 mm (2.4 in) |
| 2000 | 132.0 mm (5.2 in) |
| 2001 | 69.0 mm (2.7 in) |
| 2002 | 116.3 mm (4.6 in) |
| 2003 | 96.0 mm (3.8 in) |
| 2004 | 107.2 mm (4.2 in) |
| 2005 | 55.4 mm (2.2 in) |
| 2006 | 61.2 mm (2.4 in) |
| 2007 | 129.1 mm (5.1 in) |
| 2008 | 109.9 mm (4.3 in) |
| 2009 | 93.3 mm (3.7 in) |
| 2010 | 104.1 mm (4.1 in) |
| 2011 | 195.5 mm (7.7 in) |
| 2012 | 62.5 mm (2.5 in) |
| 2013 | 152.9 mm (6.0 in) |
| 2014 | 110.3 mm (4.3 in) |
| 2015 | 227.5 mm (9.0 in) |
| 2016 | 87.1 mm (3.4 in) |
| 2017 | 63.8 mm (2.5 in) |
| 2018 | 217.5 mm (8.6 in) |
| 2019 | 96.8 mm (3.8 in) |
| 2020 | 114.1 mm (4.5 in) |
| 2021 | 86.9 mm (3.4 in) |
| 2022 | 69.8 mm (2.7 in) |
| 2023 | 77.5 mm (3.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 17 days |
| 1894 | 40 days |
| 1895 | 22 days |
| 1896 | 24 days |
| 1897 | 28 days |
| 1898 | 21 days |
| 1899 | 31 days |
| 1900 | 19 days |
| 1901 | 31 days |
| 1902 | 10 days |
| 1903 | 1 day |
| 1904 | 14 days |
| 1905 | 17 days |
| 1906 | 19 days |
| 1907 | 25 days |
| 1908 | 28 days |
| 1909 | 20 days |
| 1910 | 27 days |
| 1911 | 18 days |
| 1912 | 18 days |
| 1913 | 28 days |
| 1914 | 17 days |
| 1915 | 16 days |
| 1916 | 18 days |
| 1917 | 23 days |
| 1918 | 19 days |
| 1919 | 26 days |
| 1920 | 17 days |
| 1921 | 14 days |
| 1922 | 17 days |
| 1923 | 17 days |
| 1924 | 21 days |
| 1925 | 25 days |
| 1926 | 16 days |
| 1927 | 21 days |
| 1928 | 35 days |
| 1929 | 18 days |
| 1930 | 25 days |
| 1931 | 45 days |
| 1932 | 21 days |
| 1933 | 30 days |
| 1934 | 35 days |
| 1935 | 18 days |
| 1936 | 20 days |
| 1937 | 20 days |
| 1938 | 24 days |
| 1939 | 19 days |
| 1940 | 21 days |
| 1941 | 18 days |
| 1942 | 35 days |
| 1943 | 27 days |
| 1944 | 25 days |
| 1945 | 38 days |
| 1946 | 26 days |
| 1947 | 29 days |
| 1948 | 30 days |
| 1949 | 27 days |
| 1950 | 31 days |
| 1951 | 19 days |
| 1952 | 55 days |
| 1953 | 28 days |
| 1954 | 50 days |
| 1955 | 16 days |
| 1956 | 18 days |
| 1957 | 29 days |
| 1958 | 31 days |
| 1959 | 17 days |
| 1960 | 16 days |
| 1961 | 16 days |
| 1962 | 17 days |
| 1963 | 25 days |
| 1964 | 21 days |
| 1965 | 20 days |
| 1966 | 32 days |
| 1967 | 29 days |
| 1968 | 35 days |
| 1969 | 36 days |
| 1970 | 21 days |
| 1971 | 35 days |
| 1972 | 26 days |
| 1973 | 17 days |
| 1974 | 24 days |
| 1975 | 24 days |
| 1976 | 34 days |
| 1977 | 16 days |
| 1978 | 23 days |
| 1979 | 21 days |
| 1980 | 34 days |
| 1981 | 31 days |
| 1982 | 17 days |
| 1983 | 19 days |
| 1984 | 22 days |
| 1985 | 19 days |
| 1986 | 34 days |
| 1987 | 41 days |
| 1988 | 24 days |
| 1989 | 23 days |
| 1990 | 19 days |
| 1991 | 23 days |
| 1992 | 22 days |
| 1993 | 29 days |
| 1994 | 45 days |
| 1995 | 23 days |
| 1996 | 23 days |
| 1997 | 15 days |
| 1998 | 26 days |
| 1999 | 54 days |
| 2000 | 18 days |
| 2001 | 24 days |
| 2002 | 56 days |
| 2003 | 17 days |
| 2004 | 23 days |
| 2005 | 16 days |
| 2006 | 34 days |
| 2007 | 14 days |
| 2008 | 23 days |
| 2009 | 30 days |
| 2010 | 36 days |
| 2011 | 15 days |
| 2012 | 23 days |
| 2013 | 16 days |
| 2014 | 19 days |
| 2015 | 24 days |
| 2016 | 25 days |
| 2017 | 25 days |
| 2018 | 21 days |
| 2019 | 14 days |
| 2020 | 24 days |
| 2021 | 34 days |
| 2022 | 26 days |
| 2023 | 17 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
104 years with a frostAcross 104 years with a frost, the median last spring frost at Knoxville falls on 22 April and the median first autumn frost on 12 October, which leaves a median of 172 days between them.
In 1983 to 2022 the median growing season was 180 days. That is 14 days more than in 1895 to 1935.
Fitted over all years, the growing season changes by +1.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1895 to 1935) | Recent period (1983 to 2022) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 22 April | 27 April | 19 April | 8 days earlier | -0.7 days per decade |
| First autumn frost | 12 October | 8 October | 15 October | 7 days later | +0.8 days per decade |
| Growing days | 172 days | 166 days | 180 days | 14 days more | +1.5 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
106 years, 1895 to 2022A day with at least 64.9 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 131.6 mm (5.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 64.9 mm (2.6 in) | |
| 5 years | 84.5 mm (3.3 in) | |
| 10 years | 96.7 mm (3.8 in) | |
| 25 years | 111.4 mm (4.4 in) | |
| 50 years | 121.8 mm (4.8 in) | |
| 100 years | 131.6 mm (5.2 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 106 years of values from 1895 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: 154.4 mm (6.1 in) in 1952; 111.8 mm (4.4 in) in 2015; 111.5 mm (4.4 in) in 1958.
Station Changes
3 suspected3 changes were suspected in the annual mean temperature of Knoxville, at 1938, 1957 and 1978. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1938 ran 0.2 C (0.4 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1957 ran 0.4 C (0.7 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1978 ran 0.4 C (0.7 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1938 | +0.2 | +0.4 | likely | 5 |
| 1957 | -0.4 | -0.7 | possible | 5 |
| 1978 | +0.4 | +0.7 | likely | 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
2002 to 2022 against 1961 to 1990Over 2002 to 2022, Knoxville had a mean temperature of 10.2 C (50.4 F) and 895.4 mm (35.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are General Wayne A Downing Intl A (United States, 296 km away), Plattsburg (United States, 227 km away) and Hennepin Wtr Trmt Plt (United States, 314 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Plattsburg | United States | 227 km (141 mi) | 10.5 C (50.9 F) | 941.6 mm (37.1 in) | 0.71 |
| General Wayne A Downing Intl A | United States | 296 km (184 mi) | 10.2 C (50.4 F) | 921.4 mm (36.3 in) | 0.71 |
| Hennepin Wtr Trmt Plt | United States | 314 km (195 mi) | 9.8 C (49.7 F) | 867.3 mm (34.1 in) | 0.74 |
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 (2025-12-31).