Unionville Weather Records (USC00238523)
Record envelope, standing records and threshold days for Unionville (USC00238523), Missouri, United States, with 128 years of record.
Key Facts for Unionville
- Unionville (USC00238523) is a weather station in Missouri, United States at 40.48 latitude and -93.00 longitude, 323 m (1,060 ft) above sea level.
- The station reports from 1893 to 2020, 128 years of record.
- 1,464 records set at Unionville still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Unionville set a daily record precipitation of 37.6 mm (1.5 in) on 10 June 2020.
About the Station
- Location: Missouri, United States, 40.48 latitude, -93.00 longitude.
- Elevation: 323 m (1,060 ft).
- Period of record: 1893 to 2020, 128 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) | -33.3 C (-27.9 F) | n/a | n/a |
| Feb | 26.7 C (80.1 F) | -33.3 C (-27.9 F) | n/a | n/a |
| Mar | 31.7 C (89.1 F) | -25.6 C (-14.1 F) | n/a | n/a |
| Apr | 34.4 C (93.9 F) | -13.3 C (8.1 F) | n/a | n/a |
| May | 40.0 C (104.0 F) | -6.7 C (19.9 F) | n/a | n/a |
| Jun | 40.6 C (105.1 F) | 3.3 C (37.9 F) | n/a | n/a |
| Jul | 45.0 C (113.0 F) | 6.7 C (44.1 F) | n/a | n/a |
| Aug | 45.6 C (114.1 F) | 2.8 C (37.0 F) | n/a | n/a |
| Sep | 41.1 C (106.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Oct | 36.7 C (98.1 F) | -19.4 C (-2.9 F) | n/a | n/a |
| Nov | 30.0 C (86.0 F) | -23.3 C (-9.9 F) | n/a | n/a |
| Dec | 22.8 C (73.0 F) | -33.9 C (-29.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 8 |
| 1894 | 29 |
| 1895 | 24 |
| 1896 | 8 |
| 1897 | 2 |
| 1898 | 17 |
| 1899 | 13 |
| 1900 | 14 |
| 1901 | 30 |
| 1902 | 12 |
| 1903 | 5 |
| 1904 | 5 |
| 1905 | 17 |
| 1906 | 12 |
| 1907 | 34 |
| 1908 | 13 |
| 1909 | 13 |
| 1910 | 20 |
| 1911 | 11 |
| 1912 | 21 |
| 1913 | 32 |
| 1914 | 11 |
| 1915 | 14 |
| 1916 | 20 |
| 1917 | 26 |
| 1918 | 13 |
| 1919 | 7 |
| 1920 | 8 |
| 1921 | 11 |
| 1922 | 4 |
| 1923 | 12 |
| 1924 | 10 |
| 1925 | 19 |
| 1926 | 8 |
| 1927 | 4 |
| 1928 | 5 |
| 1929 | 12 |
| 1930 | 31 |
| 1931 | 15 |
| 1932 | 14 |
| 1933 | 26 |
| 1934 | 46 |
| 1935 | 11 |
| 1936 | 63 |
| 1937 | 11 |
| 1938 | 21 |
| 1939 | 34 |
| 1940 | 16 |
| 1941 | 11 |
| 1942 | 16 |
| 1943 | 12 |
| 1944 | 13 |
| 1945 | 8 |
| 1946 | 13 |
| 1947 | 10 |
| 1948 | 9 |
| 1949 | 4 |
| 1950 | 28 |
| 1951 | 10 |
| 1952 | 11 |
| 1953 | 11 |
| 1954 | 6 |
| 1955 | 9 |
| 1956 | 8 |
| 1957 | 6 |
| 1958 | 10 |
| 1959 | 8 |
| 1960 | 13 |
| 1961 | 4 |
| 1962 | 17 |
| 1963 | 10 |
| 1964 | 11 |
| 1965 | 18 |
| 1966 | 10 |
| 1967 | 11 |
| 1968 | 5 |
| 1969 | 3 |
| 1970 | 10 |
| 1971 | 8 |
| 1972 | 13 |
| 1973 | 9 |
| 1974 | 11 |
| 1975 | 7 |
| 1976 | 9 |
| 1977 | 10 |
| 1978 | 2 |
| 1979 | 5 |
| 1980 | 8 |
| 1981 | 9 |
| 1984 | 6 |
| 1985 | 10 |
| 1986 | 9 |
| 1987 | 9 |
| 1988 | 4 |
| 1989 | 24 |
| 1990 | 14 |
| 1991 | 17 |
| 1992 | 14 |
| 2002 | 3 |
| 2004 | 3 |
| 2005 | 5 |
| 2006 | 10 |
| 2007 | 12 |
| 2008 | 7 |
| 2009 | 10 |
| 2010 | 1 |
| 2011 | 6 |
| 2012 | 19 |
| 2013 | 8 |
| 2014 | 12 |
| 2015 | 6 |
| 2016 | 7 |
| 2017 | 9 |
| 2018 | 12 |
| 2019 | 8 |
| 2020 | 1 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1934-07-24 | 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) |
| 1989-12-23 | Record low minimum temperature | Record low minimum temperature -33.9 C (-29.0 F) |
| 2008-07-25 | Record daily precipitation | Record daily precipitation 226.6 mm (8.9 in) |
Wettest Day of Each Month
Jul: 226.6 mm (8.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 53.3 mm (2.1 in) | 14 January 1911 |
| Feb | 62.2 mm (2.4 in) | 17 February 1911 |
| Mar | 71.6 mm (2.8 in) | 12 March 1939 |
| Apr | 91.9 mm (3.6 in) | 18 April 2013 |
| May | 120.9 mm (4.8 in) | 29 May 2013 |
| Jun | 172.2 mm (6.8 in) | 4 June 2014 |
| Jul | 226.6 mm (8.9 in) | 25 July 2008 |
| Aug | 190.5 mm (7.5 in) | 27 August 1903 |
| Sep | 142.2 mm (5.6 in) | 26 September 1933 |
| Oct | 71.1 mm (2.8 in) | 11 October 1912 |
| Nov | 68.6 mm (2.7 in) | 27 November 2015 |
| Dec | 71.1 mm (2.8 in) | 15 December 1971 |
Period of Record Coverage
1893 to 2020| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 268 | 73% | No |
| 1894 | 349 | 96% | Yes |
| 1895 | 360 | 99% | Yes |
| 1896 | 242 | 66% | No |
| 1897 | 30 | 8% | No |
| 1898 | 332 | 91% | Yes |
| 1899 | 254 | 70% | No |
| 1900 | 348 | 95% | Yes |
| 1901 | 341 | 93% | Yes |
| 1902 | 342 | 94% | Yes |
| 1903 | 349 | 96% | Yes |
| 1904 | 350 | 96% | Yes |
| 1905 | 360 | 99% | Yes |
| 1906 | 363 | 99% | Yes |
| 1907 | 358 | 98% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 351 | 96% | Yes |
| 1910 | 364 | 100% | Yes |
| 1911 | 364 | 100% | Yes |
| 1912 | 362 | 99% | Yes |
| 1913 | 363 | 99% | Yes |
| 1914 | 362 | 99% | Yes |
| 1915 | 363 | 99% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 364 | 100% | Yes |
| 1918 | 353 | 97% | Yes |
| 1919 | 363 | 99% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 363 | 99% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 364 | 100% | Yes |
| 1926 | 364 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 364 | 100% | Yes |
| 1931 | 363 | 99% | Yes |
| 1932 | 362 | 99% | Yes |
| 1933 | 364 | 100% | Yes |
| 1934 | 345 | 95% | Yes |
| 1935 | 333 | 91% | Yes |
| 1936 | 339 | 93% | Yes |
| 1937 | 310 | 85% | No |
| 1938 | 350 | 96% | Yes |
| 1939 | 352 | 96% | Yes |
| 1940 | 348 | 95% | Yes |
| 1941 | 350 | 96% | Yes |
| 1942 | 342 | 94% | Yes |
| 1943 | 351 | 96% | Yes |
| 1944 | 350 | 96% | Yes |
| 1945 | 347 | 95% | Yes |
| 1946 | 338 | 93% | Yes |
| 1947 | 342 | 94% | Yes |
| 1948 | 330 | 90% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 352 | 96% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 363 | 99% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 362 | 99% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 361 | 99% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 362 | 99% | Yes |
| 1974 | 363 | 99% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 359 | 98% | Yes |
| 1977 | 358 | 98% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 354 | 97% | Yes |
| 1980 | 334 | 91% | Yes |
| 1981 | 330 | 90% | Yes |
| 1984 | 347 | 95% | Yes |
| 1985 | 341 | 93% | Yes |
| 1986 | 351 | 96% | Yes |
| 1987 | 354 | 97% | Yes |
| 1988 | 312 | 85% | No |
| 1989 | 360 | 99% | Yes |
| 1990 | 361 | 99% | Yes |
| 1991 | 362 | 99% | Yes |
| 1992 | 359 | 98% | Yes |
| 1993 | 158 | 43% | No |
| 2002 | 79 | 22% | No |
| 2004 | 237 | 65% | No |
| 2005 | 349 | 96% | Yes |
| 2006 | 348 | 95% | Yes |
| 2007 | 363 | 99% | Yes |
| 2008 | 359 | 98% | Yes |
| 2009 | 354 | 97% | Yes |
| 2010 | 361 | 99% | Yes |
| 2011 | 360 | 99% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 361 | 99% | Yes |
| 2014 | 362 | 99% | Yes |
| 2015 | 364 | 100% | Yes |
| 2016 | 363 | 99% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 295 | 81% | No |
| 2019 | 277 | 76% | No |
| 2020 | 99 | 27% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 10 June 2020 | Unionville, US | daily rain | 37.6 mm (1.5 in) | 1.5 mm (0.06 in) | 36 years | 20 of 100 (Routine) |
| 25 May 2020 | Unionville, US | daily rain | 60.5 mm (2.4 in) | 28.0 mm (1.1 in) | 30 years | 40 of 100 (Notable) |
| 17 May 2020 | Unionville, US | daily rain | 19.3 mm (0.8 in) | 0.5 mm (0.02 in) | 10 years | 13 of 100 (Routine) |
| 18 April 2020 | Unionville, US | daily snow depth | 15.2 cm (6.0 in) | 15.2 cm (6.0 in) | 108 years | 57 of 100 (Notable) |
| 17 April 2020 | Unionville, US | daily snowfall | 29.2 cm (11.5 in) | 26.7 cm (10.5 in) | 110 years | 67 of 100 (Major) |
| 17 April 2020 | Unionville, US | monthly snow depth (Tie) | 30.5 cm (12.0 in) | tie | 103 years | 12 of 100 (Routine) |
| 16 April 2020 | Unionville, US | daily snowfall | 10.7 cm (4.2 in) | 0.5 cm (0.2 in) | 99 years | 39 of 100 (Notable) |
| 16 April 2020 | Unionville, US | daily snow depth (Tie) | 10.2 cm (4.0 in) | tie | 99 years | 9 of 100 (Routine) |
| 14 February 2020 | Unionville, US | daily low max | -13.9 C (7.0 F) | 2.8 C (5.0 F) | 68 years | 33 of 100 (Routine) |
| 29 December 2019 | Unionville, US | daily high min | 4.4 C (39.9 F) | 2.2 C (4.0 F) | 46 years | 27 of 100 (Routine) |
| 29 December 2019 | Unionville, US | daily rain | 27.9 mm (1.1 in) | 7.3 mm (0.29 in) | 28 years | 26 of 100 (Routine) |
| 26 December 2019 | Unionville, US | daily high max | 16.7 C (62.1 F) | 2.3 C (4.1 F) | 82 years | 37 of 100 (Notable) |
| 16 December 2019 | Unionville, US | daily snowfall | 8.9 cm (3.5 in) | 1.3 cm (0.5 in) | 12 years | 16 of 100 (Routine) |
| 13 November 2019 | Unionville, US | daily low max | -5.0 C (23.0 F) | 1.1 C (2.0 F) | 78 years | 34 of 100 (Routine) |
| 12 November 2019 | Unionville, US | daily low max | -6.1 C (21.0 F) | 1.7 C (3.1 F) | 98 years | 41 of 100 (Notable) |
| 12 November 2019 | Unionville, US | daily low min | -17.8 C (0.0 F) | 4.5 C (8.1 F) | 78 years | 40 of 100 (Notable) |
| 12 November 2019 | Unionville, US | daily snowfall | 4.1 cm (1.6 in) | 3.8 cm (1.5 in) | 32 years | 20 of 100 (Routine) |
| 1 November 2019 | Unionville, US | daily snow depth | 5.1 cm (2.0 in) | 5.1 cm (2.0 in) | 106 years | 20 of 100 (Routine) |
| 31 October 2019 | Unionville, US | daily snowfall | 10.7 cm (4.2 in) | 10.7 cm (4.2 in) | 124 years | 61 of 100 (Major) |
| 31 October 2019 | Unionville, US | daily snow depth | 10.2 cm (4.0 in) | 10.2 cm (4.0 in) | 105 years | 50 of 100 (Notable) |
Climate Trend
100 complete years, 1894 to 2017| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1894 | 12.4 C | +1.65 C |
| 1895 | 10.0 C | -0.84 C |
| 1900 | 12.2 C | +1.40 C |
| 1901 | 12.0 C | +1.20 C |
| 1903 | 10.3 C | -0.45 C |
| 1904 | 9.5 C | -1.30 C |
| 1905 | 9.7 C | -1.08 C |
| 1906 | 10.4 C | -0.38 C |
| 1907 | 9.9 C | -0.89 C |
| 1908 | 11.0 C | +0.24 C |
| 1909 | 10.3 C | -0.54 C |
| 1910 | 10.3 C | -0.52 C |
| 1911 | 11.2 C | +0.43 C |
| 1912 | 9.0 C | -1.80 C |
| 1913 | 10.8 C | +0.04 C |
| 1914 | 10.5 C | -0.26 C |
| 1915 | 9.9 C | -0.87 C |
| 1916 | 9.9 C | -0.86 C |
| 1917 | 8.3 C | -2.52 C |
| 1918 | 10.9 C | +0.10 C |
| 1919 | 11.0 C | +0.23 C |
| 1920 | 10.6 C | -0.16 C |
| 1921 | 12.8 C | +2.00 C |
| 1922 | 11.8 C | +1.05 C |
| 1923 | 11.2 C | +0.36 C |
| 1924 | 10.0 C | -0.84 C |
| 1925 | 11.1 C | +0.26 C |
| 1926 | 10.9 C | +0.10 C |
| 1927 | 11.2 C | +0.39 C |
| 1928 | 11.2 C | +0.43 C |
| 1929 | 9.8 C | -1.00 C |
| 1930 | 12.0 C | +1.17 C |
| 1931 | 13.4 C | +2.59 C |
| 1932 | 11.2 C | +0.41 C |
| 1933 | 12.6 C | +1.81 C |
| 1934 | 12.9 C | +2.15 C |
| 1935 | 10.6 C | -0.19 C |
| 1936 | 10.8 C | -0.01 C |
| 1938 | 13.2 C | +2.41 C |
| 1939 | 12.9 C | +2.11 C |
| 1940 | 10.6 C | -0.17 C |
| 1941 | 12.0 C | +1.19 C |
| 1942 | 10.9 C | +0.08 C |
| 1943 | 10.5 C | -0.27 C |
| 1944 | 10.9 C | +0.09 C |
| 1945 | 10.0 C | -0.80 C |
| 1946 | 11.8 C | +0.97 C |
| 1947 | 10.3 C | -0.46 C |
| 1949 | 10.2 C | -0.58 C |
| 1950 | 8.7 C | -2.07 C |
| 1951 | 8.7 C | -2.10 C |
| 1952 | 11.0 C | +0.22 C |
| 1953 | 11.8 C | +1.04 C |
| 1954 | 11.8 C | +1.03 C |
| 1955 | 10.8 C | +0.03 C |
| 1956 | 11.7 C | +0.87 C |
| 1957 | 11.0 C | +0.17 C |
| 1958 | 10.5 C | -0.33 C |
| 1959 | 10.7 C | -0.10 C |
| 1960 | 10.2 C | -0.60 C |
| 1961 | 10.5 C | -0.27 C |
| 1962 | 10.5 C | -0.30 C |
| 1963 | 11.0 C | +0.24 C |
| 1964 | 11.5 C | +0.71 C |
| 1965 | 11.1 C | +0.30 C |
| 1966 | 10.5 C | -0.34 C |
| 1967 | 10.5 C | -0.26 C |
| 1968 | 10.9 C | +0.08 C |
| 1969 | 10.5 C | -0.33 C |
| 1970 | 11.0 C | +0.19 C |
| 1971 | 11.2 C | +0.45 C |
| 1972 | 10.3 C | -0.49 C |
| 1973 | 11.4 C | +0.65 C |
| 1974 | 11.1 C | +0.27 C |
| 1975 | 11.2 C | +0.36 C |
| 1976 | 10.7 C | -0.11 C |
| 1977 | 11.2 C | +0.38 C |
| 1978 | 9.3 C | -1.50 C |
| 1979 | 9.0 C | -1.82 C |
| 1984 | 10.1 C | -0.72 C |
| 1985 | 9.1 C | -1.65 C |
| 1986 | 10.8 C | -0.04 C |
| 1987 | 11.4 C | +0.61 C |
| 1989 | 8.9 C | -1.88 C |
| 1990 | 11.3 C | +0.47 C |
| 1991 | 10.8 C | 0.00 C |
| 1992 | 10.3 C | -0.54 C |
| 2005 | 11.1 C | +0.34 C |
| 2006 | 11.7 C | +0.94 C |
| 2007 | 11.2 C | +0.36 C |
| 2008 | 9.5 C | -1.32 C |
| 2009 | 9.8 C | -0.97 C |
| 2010 | 10.5 C | -0.29 C |
| 2011 | 10.6 C | -0.16 C |
| 2012 | 12.6 C | +1.82 C |
| 2013 | 9.6 C | -1.16 C |
| 2014 | 9.0 C | -1.78 C |
| 2015 | 10.9 C | +0.12 C |
| 2016 | 11.7 C | +0.93 C |
| 2017 | 11.4 C | +0.59 C |
The fitted trend in annual mean temperature here over 1894 to 2017 is -0.02 C (-0.08 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.04 F (-0.15 to 0.06) per decade. The slope is a straight line fitted to 100 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.02 C (-0.08 to 0.04) per decade | -0.04 F (-0.15 to 0.06) per decade | 1894 to 2017 | 100 | Not clearly different from zero |
| Mean daily maximum | -0.10 C (-0.18 to -0.03) per decade | -0.2 F (-0.3 to -0.1) per decade | 1894 to 2017 | 100 | Fall |
| Mean daily minimum | 0.06 C (0.00 to 0.12) per decade | 0.10 F (-0.01 to 0.21) per decade | 1894 to 2017 | 100 | Not clearly different from zero |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1893 to 2020| 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) | 117 |
| Coldest night (TNn) | -33.9 C (-29.0 F) | 1989 | -25.0 C (-13.0 F) | 117 |
| Wettest day (Rx1day) | 226.6 mm (8.9 in) | 2008 | 67.3 mm (2.6 in) | 117 |
| Wettest five days (Rx5day) | 281.7 mm (11.1 in) | 2008 | 107.3 mm (4.2 in) | 117 |
| Longest dry spell (CDD) | 71 days | 1904 | 24 days | 117 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 37.8 C (100.0 F) |
| 1894 | 40.0 C (104.0 F) |
| 1895 | 40.0 C (104.0 F) |
| 1896 | 32.8 C (91.0 F) |
| 1897 | 29.4 C (84.9 F) |
| 1898 | 37.2 C (99.0 F) |
| 1899 | 39.4 C (102.9 F) |
| 1900 | 39.4 C (102.9 F) |
| 1901 | 44.4 C (111.9 F) |
| 1902 | 36.7 C (98.1 F) |
| 1903 | 36.7 C (98.1 F) |
| 1904 | 34.4 C (93.9 F) |
| 1905 | 35.6 C (96.1 F) |
| 1906 | 36.1 C (97.0 F) |
| 1907 | 35.6 C (96.1 F) |
| 1908 | 36.1 C (97.0 F) |
| 1909 | 37.8 C (100.0 F) |
| 1910 | 36.7 C (98.1 F) |
| 1911 | 42.2 C (108.0 F) |
| 1912 | 37.8 C (100.0 F) |
| 1913 | 40.6 C (105.1 F) |
| 1914 | 39.4 C (102.9 F) |
| 1915 | 33.3 C (91.9 F) |
| 1916 | 40.0 C (104.0 F) |
| 1917 | 39.4 C (102.9 F) |
| 1918 | 42.2 C (108.0 F) |
| 1919 | 37.8 C (100.0 F) |
| 1920 | 35.6 C (96.1 F) |
| 1921 | 35.0 C (95.0 F) |
| 1922 | 36.7 C (98.1 F) |
| 1923 | 37.2 C (99.0 F) |
| 1924 | 35.0 C (95.0 F) |
| 1925 | 38.9 C (102.0 F) |
| 1926 | 38.9 C (102.0 F) |
| 1927 | 36.7 C (98.1 F) |
| 1928 | 34.4 C (93.9 F) |
| 1929 | 37.8 C (100.0 F) |
| 1930 | 43.9 C (111.0 F) |
| 1931 | 40.0 C (104.0 F) |
| 1932 | 38.9 C (102.0 F) |
| 1933 | 39.4 C (102.9 F) |
| 1934 | 45.6 C (114.1 F) |
| 1935 | 36.7 C (98.1 F) |
| 1936 | 45.0 C (113.0 F) |
| 1937 | 38.3 C (100.9 F) |
| 1938 | 43.3 C (109.9 F) |
| 1939 | 41.1 C (106.0 F) |
| 1940 | 41.1 C (106.0 F) |
| 1941 | 41.7 C (107.1 F) |
| 1942 | 36.7 C (98.1 F) |
| 1943 | 37.2 C (99.0 F) |
| 1944 | 38.9 C (102.0 F) |
| 1945 | 38.3 C (100.9 F) |
| 1946 | 36.1 C (97.0 F) |
| 1947 | 39.4 C (102.9 F) |
| 1948 | 38.9 C (102.0 F) |
| 1949 | 34.4 C (93.9 F) |
| 1950 | 34.4 C (93.9 F) |
| 1951 | 33.9 C (93.0 F) |
| 1952 | 36.1 C (97.0 F) |
| 1953 | 37.2 C (99.0 F) |
| 1954 | 40.0 C (104.0 F) |
| 1955 | 38.9 C (102.0 F) |
| 1956 | 38.3 C (100.9 F) |
| 1957 | 38.3 C (100.9 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 37.8 C (100.0 F) |
| 1960 | 36.1 C (97.0 F) |
| 1961 | 35.0 C (95.0 F) |
| 1962 | 36.1 C (97.0 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 37.8 C (100.0 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 36.1 C (97.0 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 35.6 C (96.1 F) |
| 1970 | 39.4 C (102.9 F) |
| 1971 | 36.1 C (97.0 F) |
| 1972 | 37.2 C (99.0 F) |
| 1973 | 35.0 C (95.0 F) |
| 1974 | 38.3 C (100.9 F) |
| 1975 | 36.7 C (98.1 F) |
| 1976 | 36.1 C (97.0 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 35.6 C (96.1 F) |
| 1979 | 35.6 C (96.1 F) |
| 1980 | 40.0 C (104.0 F) |
| 1981 | 35.6 C (96.1 F) |
| 1984 | 41.1 C (106.0 F) |
| 1985 | 34.4 C (93.9 F) |
| 1986 | 34.4 C (93.9 F) |
| 1987 | 37.2 C (99.0 F) |
| 1988 | 40.0 C (104.0 F) |
| 1989 | 35.6 C (96.1 F) |
| 1990 | 36.7 C (98.1 F) |
| 1991 | 36.7 C (98.1 F) |
| 1992 | 35.6 C (96.1 F) |
| 1993 | 31.1 C (88.0 F) |
| 2002 | 29.4 C (84.9 F) |
| 2004 | 33.9 C (93.0 F) |
| 2005 | 38.9 C (102.0 F) |
| 2006 | 37.8 C (100.0 F) |
| 2007 | 37.2 C (99.0 F) |
| 2008 | 35.6 C (96.1 F) |
| 2009 | 34.4 C (93.9 F) |
| 2010 | 35.6 C (96.1 F) |
| 2011 | 38.9 C (102.0 F) |
| 2012 | 40.6 C (105.1 F) |
| 2013 | 38.3 C (100.9 F) |
| 2014 | 33.9 C (93.0 F) |
| 2015 | 33.3 C (91.9 F) |
| 2016 | 35.0 C (95.0 F) |
| 2017 | 34.4 C (93.9 F) |
| 2018 | 36.7 C (98.1 F) |
| 2019 | 35.0 C (95.0 F) |
| 2020 | 23.3 C (73.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -21.7 C (-7.1 F) |
| 1894 | -30.0 C (-22.0 F) |
| 1895 | -28.3 C (-18.9 F) |
| 1896 | -23.3 C (-9.9 F) |
| 1897 | -1.1 C (30.0 F) |
| 1898 | -21.7 C (-7.1 F) |
| 1899 | -17.8 C (0.0 F) |
| 1900 | -22.2 C (-8.0 F) |
| 1901 | -26.7 C (-16.1 F) |
| 1902 | -26.7 C (-16.1 F) |
| 1903 | -25.6 C (-14.1 F) |
| 1904 | -26.7 C (-16.1 F) |
| 1905 | -33.3 C (-27.9 F) |
| 1906 | -22.2 C (-8.0 F) |
| 1907 | -24.4 C (-11.9 F) |
| 1908 | -23.3 C (-9.9 F) |
| 1909 | -24.4 C (-11.9 F) |
| 1910 | -25.6 C (-14.1 F) |
| 1911 | -25.6 C (-14.1 F) |
| 1912 | -33.3 C (-27.9 F) |
| 1913 | -24.4 C (-11.9 F) |
| 1914 | -26.7 C (-16.1 F) |
| 1915 | -30.6 C (-23.1 F) |
| 1916 | -28.9 C (-20.0 F) |
| 1917 | -30.0 C (-22.0 F) |
| 1918 | -29.4 C (-20.9 F) |
| 1919 | -28.9 C (-20.0 F) |
| 1920 | -23.3 C (-9.9 F) |
| 1921 | -21.1 C (-6.0 F) |
| 1922 | -20.6 C (-5.1 F) |
| 1923 | -22.2 C (-8.0 F) |
| 1924 | -31.7 C (-25.1 F) |
| 1925 | -23.3 C (-9.9 F) |
| 1926 | -23.9 C (-11.0 F) |
| 1927 | -26.7 C (-16.1 F) |
| 1928 | -22.2 C (-8.0 F) |
| 1929 | -26.1 C (-15.0 F) |
| 1930 | -29.4 C (-20.9 F) |
| 1931 | -17.8 C (0.0 F) |
| 1932 | -26.7 C (-16.1 F) |
| 1933 | -27.8 C (-18.0 F) |
| 1934 | -24.4 C (-11.9 F) |
| 1935 | -23.3 C (-9.9 F) |
| 1936 | -28.3 C (-18.9 F) |
| 1937 | -20.0 C (-4.0 F) |
| 1938 | -20.6 C (-5.1 F) |
| 1939 | -21.1 C (-6.0 F) |
| 1940 | -27.8 C (-18.0 F) |
| 1941 | -17.8 C (0.0 F) |
| 1942 | -27.8 C (-18.0 F) |
| 1943 | -28.9 C (-20.0 F) |
| 1944 | -26.7 C (-16.1 F) |
| 1945 | -23.3 C (-9.9 F) |
| 1946 | -20.6 C (-5.1 F) |
| 1947 | -26.7 C (-16.1 F) |
| 1948 | -26.1 C (-15.0 F) |
| 1949 | -28.3 C (-18.9 F) |
| 1950 | -23.9 C (-11.0 F) |
| 1951 | -28.3 C (-18.9 F) |
| 1952 | -20.6 C (-5.1 F) |
| 1953 | -20.0 C (-4.0 F) |
| 1954 | -22.2 C (-8.0 F) |
| 1955 | -24.4 C (-11.9 F) |
| 1956 | -21.1 C (-6.0 F) |
| 1957 | -27.2 C (-17.0 F) |
| 1958 | -26.7 C (-16.1 F) |
| 1959 | -25.6 C (-14.1 F) |
| 1960 | -25.6 C (-14.1 F) |
| 1961 | -26.1 C (-15.0 F) |
| 1962 | -26.1 C (-15.0 F) |
| 1963 | -28.3 C (-18.9 F) |
| 1964 | -22.2 C (-8.0 F) |
| 1965 | -26.7 C (-16.1 F) |
| 1966 | -28.3 C (-18.9 F) |
| 1967 | -22.2 C (-8.0 F) |
| 1968 | -25.6 C (-14.1 F) |
| 1969 | -23.3 C (-9.9 F) |
| 1970 | -28.3 C (-18.9 F) |
| 1971 | -24.4 C (-11.9 F) |
| 1972 | -26.7 C (-16.1 F) |
| 1973 | -23.9 C (-11.0 F) |
| 1974 | -27.8 C (-18.0 F) |
| 1975 | -26.1 C (-15.0 F) |
| 1976 | -26.1 C (-15.0 F) |
| 1977 | -28.3 C (-18.9 F) |
| 1978 | -26.1 C (-15.0 F) |
| 1979 | -27.2 C (-17.0 F) |
| 1980 | -22.8 C (-9.0 F) |
| 1981 | -26.7 C (-16.1 F) |
| 1984 | -27.2 C (-17.0 F) |
| 1985 | -29.4 C (-20.9 F) |
| 1986 | -22.2 C (-8.0 F) |
| 1987 | -22.2 C (-8.0 F) |
| 1988 | -24.4 C (-11.9 F) |
| 1989 | -33.9 C (-29.0 F) |
| 1990 | -22.8 C (-9.0 F) |
| 1991 | -23.3 C (-9.9 F) |
| 1992 | -18.3 C (-0.9 F) |
| 1993 | -20.6 C (-5.1 F) |
| 2002 | -19.4 C (-2.9 F) |
| 2004 | -18.9 C (-2.0 F) |
| 2005 | -19.4 C (-2.9 F) |
| 2006 | -19.4 C (-2.9 F) |
| 2007 | -20.6 C (-5.1 F) |
| 2008 | -22.8 C (-9.0 F) |
| 2009 | -25.0 C (-13.0 F) |
| 2010 | -25.0 C (-13.0 F) |
| 2011 | -22.2 C (-8.0 F) |
| 2012 | -15.6 C (3.9 F) |
| 2013 | -26.7 C (-16.1 F) |
| 2014 | -25.6 C (-14.1 F) |
| 2015 | -22.8 C (-9.0 F) |
| 2016 | -25.6 C (-14.1 F) |
| 2017 | -24.4 C (-11.9 F) |
| 2018 | -28.9 C (-20.0 F) |
| 2019 | -26.1 C (-15.0 F) |
| 2020 | -22.2 C (-8.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 87.1 mm (3.4 in) |
| 1894 | 63.5 mm (2.5 in) |
| 1895 | 64.3 mm (2.5 in) |
| 1896 | 46.0 mm (1.8 in) |
| 1897 | 21.6 mm (0.9 in) |
| 1898 | 104.6 mm (4.1 in) |
| 1899 | 50.8 mm (2.0 in) |
| 1900 | 45.7 mm (1.8 in) |
| 1901 | 44.5 mm (1.8 in) |
| 1902 | 98.0 mm (3.9 in) |
| 1903 | 190.5 mm (7.5 in) |
| 1904 | 63.5 mm (2.5 in) |
| 1905 | 49.5 mm (1.9 in) |
| 1906 | 53.8 mm (2.1 in) |
| 1907 | 86.4 mm (3.4 in) |
| 1908 | 69.1 mm (2.7 in) |
| 1909 | 67.6 mm (2.7 in) |
| 1910 | 48.3 mm (1.9 in) |
| 1911 | 73.7 mm (2.9 in) |
| 1912 | 71.1 mm (2.8 in) |
| 1913 | 56.9 mm (2.2 in) |
| 1914 | 68.6 mm (2.7 in) |
| 1915 | 83.8 mm (3.3 in) |
| 1916 | 80.0 mm (3.1 in) |
| 1917 | 91.4 mm (3.6 in) |
| 1918 | 71.1 mm (2.8 in) |
| 1919 | 63.5 mm (2.5 in) |
| 1920 | 73.7 mm (2.9 in) |
| 1921 | 72.4 mm (2.9 in) |
| 1922 | 63.5 mm (2.5 in) |
| 1923 | 63.5 mm (2.5 in) |
| 1924 | 58.4 mm (2.3 in) |
| 1925 | 57.2 mm (2.3 in) |
| 1926 | 48.3 mm (1.9 in) |
| 1927 | 48.3 mm (1.9 in) |
| 1928 | 97.8 mm (3.9 in) |
| 1929 | 68.6 mm (2.7 in) |
| 1930 | 64.8 mm (2.6 in) |
| 1931 | 64.8 mm (2.6 in) |
| 1932 | 55.9 mm (2.2 in) |
| 1933 | 142.2 mm (5.6 in) |
| 1934 | 39.4 mm (1.6 in) |
| 1935 | 77.0 mm (3.0 in) |
| 1936 | 58.4 mm (2.3 in) |
| 1937 | 48.3 mm (1.9 in) |
| 1938 | 52.1 mm (2.1 in) |
| 1939 | 71.6 mm (2.8 in) |
| 1940 | 66.8 mm (2.6 in) |
| 1941 | 48.3 mm (1.9 in) |
| 1942 | 55.1 mm (2.2 in) |
| 1943 | 50.8 mm (2.0 in) |
| 1944 | 80.5 mm (3.2 in) |
| 1945 | 95.3 mm (3.8 in) |
| 1946 | 49.5 mm (1.9 in) |
| 1947 | 74.4 mm (2.9 in) |
| 1948 | 56.6 mm (2.2 in) |
| 1949 | 86.9 mm (3.4 in) |
| 1950 | 81.3 mm (3.2 in) |
| 1951 | 121.9 mm (4.8 in) |
| 1952 | 65.8 mm (2.6 in) |
| 1953 | 39.4 mm (1.6 in) |
| 1954 | 68.8 mm (2.7 in) |
| 1955 | 35.1 mm (1.4 in) |
| 1956 | 47.0 mm (1.9 in) |
| 1957 | 111.5 mm (4.4 in) |
| 1958 | 79.0 mm (3.1 in) |
| 1959 | 81.8 mm (3.2 in) |
| 1960 | 50.3 mm (2.0 in) |
| 1961 | 95.3 mm (3.8 in) |
| 1962 | 62.0 mm (2.4 in) |
| 1963 | 60.7 mm (2.4 in) |
| 1964 | 81.3 mm (3.2 in) |
| 1965 | 89.7 mm (3.5 in) |
| 1966 | 50.3 mm (2.0 in) |
| 1967 | 56.4 mm (2.2 in) |
| 1968 | 80.3 mm (3.2 in) |
| 1969 | 68.6 mm (2.7 in) |
| 1970 | 67.3 mm (2.6 in) |
| 1971 | 71.1 mm (2.8 in) |
| 1972 | 54.6 mm (2.1 in) |
| 1973 | 91.9 mm (3.6 in) |
| 1974 | 159.3 mm (6.3 in) |
| 1975 | 43.2 mm (1.7 in) |
| 1976 | 72.9 mm (2.9 in) |
| 1977 | 54.1 mm (2.1 in) |
| 1978 | 110.2 mm (4.3 in) |
| 1979 | 58.7 mm (2.3 in) |
| 1980 | 88.9 mm (3.5 in) |
| 1981 | 106.7 mm (4.2 in) |
| 1984 | 56.1 mm (2.2 in) |
| 1985 | 62.2 mm (2.4 in) |
| 1986 | 68.8 mm (2.7 in) |
| 1987 | 68.1 mm (2.7 in) |
| 1988 | 67.1 mm (2.6 in) |
| 1989 | 79.2 mm (3.1 in) |
| 1990 | 75.4 mm (3.0 in) |
| 1991 | 59.2 mm (2.3 in) |
| 1992 | 52.8 mm (2.1 in) |
| 1993 | 56.9 mm (2.2 in) |
| 2002 | 45.7 mm (1.8 in) |
| 2004 | 108.0 mm (4.3 in) |
| 2005 | 57.4 mm (2.3 in) |
| 2006 | 33.5 mm (1.3 in) |
| 2007 | 77.7 mm (3.1 in) |
| 2008 | 226.6 mm (8.9 in) |
| 2009 | 59.9 mm (2.4 in) |
| 2010 | 168.9 mm (6.6 in) |
| 2011 | 54.6 mm (2.1 in) |
| 2012 | 38.9 mm (1.5 in) |
| 2013 | 120.9 mm (4.8 in) |
| 2014 | 172.2 mm (6.8 in) |
| 2015 | 75.7 mm (3.0 in) |
| 2016 | 104.1 mm (4.1 in) |
| 2017 | 72.9 mm (2.9 in) |
| 2018 | 71.1 mm (2.8 in) |
| 2019 | 120.9 mm (4.8 in) |
| 2020 | 65.5 mm (2.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 87.1 mm (3.4 in) |
| 1894 | 69.3 mm (2.7 in) |
| 1895 | 81.2 mm (3.2 in) |
| 1896 | 68.4 mm (2.7 in) |
| 1897 | 58.9 mm (2.3 in) |
| 1898 | 118.4 mm (4.7 in) |
| 1899 | 90.2 mm (3.6 in) |
| 1900 | 77.3 mm (3.0 in) |
| 1901 | 73.7 mm (2.9 in) |
| 1902 | 109.2 mm (4.3 in) |
| 1903 | 211.8 mm (8.3 in) |
| 1904 | 69.9 mm (2.8 in) |
| 1905 | 85.6 mm (3.4 in) |
| 1906 | 65.8 mm (2.6 in) |
| 1907 | 127.3 mm (5.0 in) |
| 1908 | 129.6 mm (5.1 in) |
| 1909 | 205.9 mm (8.1 in) |
| 1910 | 73.7 mm (2.9 in) |
| 1911 | 139.7 mm (5.5 in) |
| 1912 | 74.1 mm (2.9 in) |
| 1913 | 73.9 mm (2.9 in) |
| 1914 | 99.1 mm (3.9 in) |
| 1915 | 140.2 mm (5.5 in) |
| 1916 | 181.7 mm (7.2 in) |
| 1917 | 160.0 mm (6.3 in) |
| 1918 | 115.9 mm (4.6 in) |
| 1919 | 109.2 mm (4.3 in) |
| 1920 | 99.6 mm (3.9 in) |
| 1921 | 90.2 mm (3.6 in) |
| 1922 | 139.7 mm (5.5 in) |
| 1923 | 120.7 mm (4.8 in) |
| 1924 | 118.1 mm (4.6 in) |
| 1925 | 94.0 mm (3.7 in) |
| 1926 | 89.4 mm (3.5 in) |
| 1927 | 95.2 mm (3.7 in) |
| 1928 | 190.5 mm (7.5 in) |
| 1929 | 104.1 mm (4.1 in) |
| 1930 | 96.5 mm (3.8 in) |
| 1931 | 155.0 mm (6.1 in) |
| 1932 | 133.4 mm (5.3 in) |
| 1933 | 142.2 mm (5.6 in) |
| 1934 | 63.2 mm (2.5 in) |
| 1935 | 133.9 mm (5.3 in) |
| 1936 | 108.7 mm (4.3 in) |
| 1937 | 56.6 mm (2.2 in) |
| 1938 | 114.9 mm (4.5 in) |
| 1939 | 109.8 mm (4.3 in) |
| 1940 | 102.6 mm (4.0 in) |
| 1941 | 107.2 mm (4.2 in) |
| 1942 | 65.3 mm (2.6 in) |
| 1943 | 66.9 mm (2.6 in) |
| 1944 | 98.8 mm (3.9 in) |
| 1945 | 126.0 mm (5.0 in) |
| 1946 | 121.1 mm (4.8 in) |
| 1947 | 110.5 mm (4.4 in) |
| 1948 | 69.6 mm (2.7 in) |
| 1949 | 116.4 mm (4.6 in) |
| 1950 | 131.8 mm (5.2 in) |
| 1951 | 121.9 mm (4.8 in) |
| 1952 | 90.4 mm (3.6 in) |
| 1953 | 59.4 mm (2.3 in) |
| 1954 | 84.4 mm (3.3 in) |
| 1955 | 62.0 mm (2.4 in) |
| 1956 | 122.7 mm (4.8 in) |
| 1957 | 127.3 mm (5.0 in) |
| 1958 | 113.3 mm (4.5 in) |
| 1959 | 195.1 mm (7.7 in) |
| 1960 | 91.9 mm (3.6 in) |
| 1961 | 142.3 mm (5.6 in) |
| 1962 | 126.2 mm (5.0 in) |
| 1963 | 66.5 mm (2.6 in) |
| 1964 | 98.3 mm (3.9 in) |
| 1965 | 156.1 mm (6.1 in) |
| 1966 | 72.4 mm (2.9 in) |
| 1967 | 112.2 mm (4.4 in) |
| 1968 | 87.2 mm (3.4 in) |
| 1969 | 81.1 mm (3.2 in) |
| 1970 | 107.1 mm (4.2 in) |
| 1971 | 73.6 mm (2.9 in) |
| 1972 | 76.8 mm (3.0 in) |
| 1973 | 110.8 mm (4.4 in) |
| 1974 | 159.3 mm (6.3 in) |
| 1975 | 73.3 mm (2.9 in) |
| 1976 | 118.9 mm (4.7 in) |
| 1977 | 98.5 mm (3.9 in) |
| 1978 | 138.2 mm (5.4 in) |
| 1979 | 98.3 mm (3.9 in) |
| 1980 | 119.4 mm (4.7 in) |
| 1981 | 155.2 mm (6.1 in) |
| 1984 | 109.9 mm (4.3 in) |
| 1985 | 106.9 mm (4.2 in) |
| 1986 | 136.6 mm (5.4 in) |
| 1987 | 134.1 mm (5.3 in) |
| 1988 | 68.4 mm (2.7 in) |
| 1989 | 107.3 mm (4.2 in) |
| 1990 | 86.9 mm (3.4 in) |
| 1991 | 116.6 mm (4.6 in) |
| 1992 | 116.1 mm (4.6 in) |
| 1993 | 92.8 mm (3.7 in) |
| 2002 | 50.3 mm (2.0 in) |
| 2004 | 203.0 mm (8.0 in) |
| 2005 | 83.9 mm (3.3 in) |
| 2006 | 46.0 mm (1.8 in) |
| 2007 | 88.9 mm (3.5 in) |
| 2008 | 281.7 mm (11.1 in) |
| 2009 | 84.9 mm (3.3 in) |
| 2010 | 184.6 mm (7.3 in) |
| 2011 | 87.1 mm (3.4 in) |
| 2012 | 80.2 mm (3.2 in) |
| 2013 | 181.8 mm (7.2 in) |
| 2014 | 280.7 mm (11.1 in) |
| 2015 | 150.6 mm (5.9 in) |
| 2016 | 156.4 mm (6.2 in) |
| 2017 | 97.6 mm (3.8 in) |
| 2018 | 127.3 mm (5.0 in) |
| 2019 | 246.9 mm (9.7 in) |
| 2020 | 135.7 mm (5.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 36 days |
| 1894 | 35 days |
| 1895 | 21 days |
| 1896 | 20 days |
| 1897 | 5 days |
| 1898 | 20 days |
| 1899 | 22 days |
| 1900 | 28 days |
| 1901 | 29 days |
| 1902 | 21 days |
| 1903 | 22 days |
| 1904 | 71 days |
| 1905 | 22 days |
| 1906 | 38 days |
| 1907 | 18 days |
| 1908 | 25 days |
| 1909 | 36 days |
| 1910 | 30 days |
| 1911 | 17 days |
| 1912 | 29 days |
| 1913 | 45 days |
| 1914 | 21 days |
| 1915 | 36 days |
| 1916 | 27 days |
| 1917 | 28 days |
| 1918 | 19 days |
| 1919 | 32 days |
| 1920 | 19 days |
| 1921 | 32 days |
| 1922 | 24 days |
| 1923 | 22 days |
| 1924 | 21 days |
| 1925 | 22 days |
| 1926 | 21 days |
| 1927 | 21 days |
| 1928 | 23 days |
| 1929 | 16 days |
| 1930 | 30 days |
| 1931 | 26 days |
| 1932 | 23 days |
| 1933 | 27 days |
| 1934 | 41 days |
| 1935 | 19 days |
| 1936 | 39 days |
| 1937 | 33 days |
| 1938 | 24 days |
| 1939 | 36 days |
| 1940 | 20 days |
| 1941 | 18 days |
| 1942 | 33 days |
| 1943 | 26 days |
| 1944 | 28 days |
| 1945 | 21 days |
| 1946 | 21 days |
| 1947 | 29 days |
| 1948 | 21 days |
| 1949 | 26 days |
| 1950 | 31 days |
| 1951 | 18 days |
| 1952 | 63 days |
| 1953 | 26 days |
| 1954 | 25 days |
| 1955 | 29 days |
| 1956 | 37 days |
| 1957 | 36 days |
| 1958 | 36 days |
| 1959 | 26 days |
| 1960 | 18 days |
| 1961 | 16 days |
| 1962 | 14 days |
| 1963 | 18 days |
| 1964 | 27 days |
| 1965 | 20 days |
| 1966 | 26 days |
| 1967 | 29 days |
| 1968 | 27 days |
| 1969 | 36 days |
| 1970 | 21 days |
| 1971 | 25 days |
| 1972 | 18 days |
| 1973 | 19 days |
| 1974 | 25 days |
| 1975 | 20 days |
| 1976 | 27 days |
| 1977 | 19 days |
| 1978 | 27 days |
| 1979 | 30 days |
| 1980 | 24 days |
| 1981 | 31 days |
| 1984 | 24 days |
| 1985 | 20 days |
| 1986 | 34 days |
| 1987 | 21 days |
| 1988 | 26 days |
| 1989 | 40 days |
| 1990 | 18 days |
| 1991 | 22 days |
| 1992 | 22 days |
| 1993 | 19 days |
| 2002 | 18 days |
| 2004 | 22 days |
| 2005 | 18 days |
| 2006 | 20 days |
| 2007 | 28 days |
| 2008 | 14 days |
| 2009 | 24 days |
| 2010 | 26 days |
| 2011 | 17 days |
| 2012 | 31 days |
| 2013 | 26 days |
| 2014 | 14 days |
| 2015 | 31 days |
| 2016 | 20 days |
| 2017 | 19 days |
| 2018 | 22 days |
| 2019 | 15 days |
| 2020 | 21 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
100 years with a frostAcross 100 years with a frost, the median last spring frost at Unionville falls on 23 April and the median first autumn frost on 13 October, which leaves a median of 174 days between them.
In 1971 to 2017 the median growing season was 178 days. That is 11 days more than in 1894 to 1928.
Fitted over all years, the growing season changes by +1.6 days per decade at this station.
| Measure | Median, all years | Earliest period (1894 to 1928) | Recent period (1971 to 2017) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 23 April | 25 April | 16 April | 9 days earlier | -0.6 days per decade |
| First autumn frost | 13 October | 7 October | 18 October | 11 days later | +1.0 days per decade |
| Growing days | 174 days | 167 days | 178 days | 11 days more | +1.6 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
107 years, 1894 to 2017A day with at least 66.1 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 198.0 mm (7.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 66.1 mm (2.6 in) | |
| 5 years | 89.6 mm (3.5 in) | |
| 10 years | 109.1 mm (4.3 in) | |
| 25 years | 139.1 mm (5.5 in) | |
| 50 years | 166.2 mm (6.5 in) | |
| 100 years | 198.0 mm (7.8 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 107 years of values from 1894 to 2017.
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: 226.6 mm (8.9 in) in 2008; 190.5 mm (7.5 in) in 1903; 172.2 mm (6.8 in) in 2014.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
1991 to 2017 against 1961 to 1990Over 1991 to 2017, Unionville had a mean temperature of 10.7 C (51.3 F) and 1,086.5 mm (42.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Champaign 3S (United States, 406 km away), Whitestown (United States, 567 km away) and Jacksonville 2E (United States, 252 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Champaign 3S | United States | 406 km (252 mi) | 10.9 C (51.5 F) | 1,008.5 mm (39.7 in) | 0.55 |
| Whitestown | United States | 567 km (352 mi) | 10.4 C (50.8 F) | 1,041.7 mm (41.0 in) | 0.60 |
| Jacksonville 2E | United States | 252 km (157 mi) | 11.0 C (51.7 F) | 995.4 mm (39.2 in) | 0.64 |
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.
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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).