Norwalk Wwtp Weather Records (USC00336118)
Record envelope, standing records and threshold days for Norwalk Wwtp (USC00336118), Ohio, United States, with 133 years of record.
Key Facts for Norwalk Wwtp
- Norwalk Wwtp (USC00336118) is a weather station in Ohio, United States at 41.26 latitude and -82.61 longitude, 204 m (670 ft) above sea level.
- The station reports from 1894 to 2026, 133 years of record.
- 1,464 records set at Norwalk Wwtp still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Norwalk Wwtp set a daily record precipitation of 68.6 mm (2.7 in) on 11 August 2026.
About the Station
- Location: Ohio, United States, 41.26 latitude, -82.61 longitude.
- Elevation: 204 m (670 ft).
- Period of record: 1894 to 2026, 133 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
3 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 22.2 C (72.0 F) | -30.6 C (-23.1 F) | 16.7 C (62.1 F) | -21.1 C (-6.0 F) |
| Feb | 23.9 C (75.0 F) | -31.7 C (-25.1 F) | 17.8 C (64.0 F) | -18.3 C (-0.9 F) |
| Mar | 29.4 C (84.9 F) | -26.1 C (-15.0 F) | 23.9 C (75.0 F) | -8.9 C (16.0 F) |
| Apr | 33.3 C (91.9 F) | -13.9 C (7.0 F) | 27.8 C (82.0 F) | -3.9 C (25.0 F) |
| May | 36.7 C (98.1 F) | -7.2 C (19.0 F) | 31.7 C (89.1 F) | 2.2 C (36.0 F) |
| Jun | 39.4 C (102.9 F) | -1.7 C (28.9 F) | 32.8 C (91.0 F) | 8.3 C (46.9 F) |
| Jul | 42.2 C (108.0 F) | 1.1 C (34.0 F) | 36.1 C (97.0 F) | 12.8 C (55.0 F) |
| Aug | 40.0 C (104.0 F) | 1.7 C (35.1 F) | 30.6 C (87.1 F) | 11.7 C (53.1 F) |
| Sep | 38.9 C (102.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Oct | 33.3 C (91.9 F) | -11.1 C (12.0 F) | n/a | n/a |
| Nov | 27.8 C (82.0 F) | -18.9 C (-2.0 F) | n/a | n/a |
| Dec | 22.8 C (73.0 F) | -27.2 C (-17.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1894 | 12 |
| 1895 | 63 |
| 1896 | 37 |
| 1897 | 23 |
| 1898 | 1 |
| 1899 | 27 |
| 1900 | 11 |
| 1901 | 13 |
| 1902 | 7 |
| 1903 | 16 |
| 1904 | 11 |
| 1905 | 7 |
| 1906 | 16 |
| 1907 | 14 |
| 1908 | 14 |
| 1909 | 14 |
| 1910 | 12 |
| 1911 | 15 |
| 1912 | 6 |
| 1913 | 20 |
| 1914 | 22 |
| 1915 | 12 |
| 1916 | 13 |
| 1917 | 19 |
| 1918 | 20 |
| 1919 | 2 |
| 1920 | 10 |
| 1921 | 6 |
| 1922 | 9 |
| 1923 | 12 |
| 1924 | 6 |
| 1925 | 21 |
| 1926 | 4 |
| 1927 | 13 |
| 1928 | 9 |
| 1929 | 16 |
| 1930 | 34 |
| 1931 | 19 |
| 1932 | 12 |
| 1933 | 23 |
| 1934 | 18 |
| 1935 | 2 |
| 1936 | 24 |
| 1937 | 9 |
| 1938 | 11 |
| 1939 | 11 |
| 1940 | 13 |
| 1941 | 13 |
| 1942 | 10 |
| 1943 | 9 |
| 1944 | 5 |
| 1945 | 14 |
| 1946 | 7 |
| 1947 | 8 |
| 1948 | 4 |
| 1949 | 6 |
| 1950 | 13 |
| 1951 | 15 |
| 1952 | 6 |
| 1953 | 11 |
| 1954 | 9 |
| 1955 | 5 |
| 1956 | 5 |
| 1957 | 5 |
| 1958 | 7 |
| 1959 | 10 |
| 1960 | 7 |
| 1961 | 2 |
| 1962 | 13 |
| 1963 | 9 |
| 1964 | 7 |
| 1965 | 9 |
| 1966 | 8 |
| 1967 | 12 |
| 1968 | 9 |
| 1969 | 4 |
| 1970 | 6 |
| 1971 | 6 |
| 1972 | 16 |
| 1973 | 3 |
| 1974 | 6 |
| 1975 | 3 |
| 1976 | 5 |
| 1977 | 11 |
| 1978 | 9 |
| 1979 | 8 |
| 1980 | 6 |
| 1981 | 3 |
| 1982 | 14 |
| 1983 | 14 |
| 1984 | 13 |
| 1985 | 11 |
| 1986 | 11 |
| 1987 | 7 |
| 1988 | 8 |
| 1989 | 11 |
| 1990 | 12 |
| 1991 | 20 |
| 1992 | 3 |
| 1993 | 5 |
| 1994 | 10 |
| 1995 | 10 |
| 1996 | 11 |
| 1997 | 6 |
| 1998 | 11 |
| 1999 | 7 |
| 2000 | 9 |
| 2001 | 6 |
| 2002 | 7 |
| 2003 | 1 |
| 2004 | 11 |
| 2005 | 3 |
| 2006 | 6 |
| 2007 | 10 |
| 2008 | 5 |
| 2009 | 7 |
| 2010 | 4 |
| 2011 | 10 |
| 2012 | 15 |
| 2013 | 12 |
| 2014 | 11 |
| 2015 | 24 |
| 2016 | 16 |
| 2017 | 10 |
| 2018 | 15 |
| 2019 | 14 |
| 2020 | 8 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 8 |
| 2024 | 13 |
| 2025 | 3 |
| 2026 | 9 |
All-Time Record Progression
12 new records| Date | Kind | Detail |
|---|---|---|
| 1929-02-20 | Record low minimum temperature | Record low minimum temperature -31.7 C (-25.1 F) |
| 1929-06-20 | Record daily precipitation | Record daily precipitation 95.0 mm (3.7 in) |
| 1930-07-20 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 1930-07-21 | Record high minimum temperature | Record high minimum temperature 26.1 C (79.0 F) |
| 1934-07-24 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
| 1948-08-12 | Record daily precipitation | Record daily precipitation 111.3 mm (4.4 in) |
| 1966-07-12 | Record daily precipitation | Record daily precipitation 176.0 mm (6.9 in) |
| 1969-07-05 | Record daily precipitation | Record daily precipitation 229.1 mm (9.0 in) |
| 1978-02-02 | Record snow depth | Record snow depth 50.8 cm (20.0 in) |
| 1978-02-05 | Record snow depth | Record snow depth 55.9 cm (22.0 in) |
| 1983-12-25 | Record low maximum temperature | Record low maximum temperature -20.0 C (-4.0 F) |
| 1985-01-21 | Record low maximum temperature | Record low maximum temperature -22.2 C (-8.0 F) |
Wettest Day of Each Month
Jul: 229.1 mm (9.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 71.4 mm (2.8 in) | 21 January 1959 |
| Feb | 61.5 mm (2.4 in) | 10 February 1959 |
| Mar | 74.4 mm (2.9 in) | 25 March 1913 |
| Apr | 63.0 mm (2.5 in) | 4 April 1934 |
| May | 72.6 mm (2.9 in) | 12 May 1956 |
| Jun | 137.7 mm (5.4 in) | 22 June 2006 |
| Jul | 229.1 mm (9.0 in) | 5 July 1969 |
| Aug | 111.3 mm (4.4 in) | 12 August 1948 |
| Sep | 91.4 mm (3.6 in) | 9 September 1990 |
| Oct | 67.3 mm (2.6 in) | 30 October 2012 |
| Nov | 71.1 mm (2.8 in) | 17 November 1958 |
| Dec | 79.8 mm (3.1 in) | 1 December 2006 |
Period of Record Coverage
1894 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1894 | 273 | 75% | No |
| 1895 | 364 | 100% | Yes |
| 1896 | 362 | 99% | Yes |
| 1897 | 359 | 98% | Yes |
| 1898 | 365 | 100% | Yes |
| 1899 | 361 | 99% | Yes |
| 1900 | 362 | 99% | Yes |
| 1901 | 364 | 100% | Yes |
| 1902 | 364 | 100% | Yes |
| 1903 | 360 | 99% | Yes |
| 1904 | 359 | 98% | Yes |
| 1905 | 362 | 99% | Yes |
| 1906 | 365 | 100% | Yes |
| 1907 | 356 | 98% | Yes |
| 1908 | 357 | 98% | Yes |
| 1909 | 354 | 97% | Yes |
| 1910 | 360 | 99% | Yes |
| 1911 | 354 | 97% | Yes |
| 1912 | 365 | 100% | Yes |
| 1913 | 359 | 98% | Yes |
| 1914 | 358 | 98% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 363 | 99% | Yes |
| 1917 | 361 | 99% | Yes |
| 1918 | 363 | 99% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 362 | 99% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 365 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 364 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 364 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 363 | 99% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 336 | 92% | Yes |
| 1951 | 364 | 100% | Yes |
| 1952 | 326 | 89% | No |
| 1953 | 335 | 92% | Yes |
| 1954 | 348 | 95% | Yes |
| 1955 | 332 | 91% | Yes |
| 1956 | 343 | 94% | Yes |
| 1957 | 354 | 97% | Yes |
| 1958 | 329 | 90% | Yes |
| 1959 | 329 | 90% | Yes |
| 1960 | 363 | 99% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 357 | 98% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 335 | 92% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 334 | 91% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 364 | 99% | Yes |
| 1977 | 362 | 99% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 359 | 98% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 364 | 99% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 362 | 99% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 363 | 99% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 364 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 365 | 100% | Yes |
| 2005 | 362 | 99% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 338 | 93% | Yes |
| 2008 | 260 | 71% | No |
| 2009 | 364 | 100% | Yes |
| 2010 | 362 | 99% | Yes |
| 2011 | 364 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 364 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 364 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 243 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 August 2026 | Norwalk Wwtp, US | daily rain | 68.6 mm (2.7 in) | 14.0 mm (0.6 in) | 121 years | 51 of 100 (Notable) |
| 7 August 2026 | Norwalk Wwtp, US | daily rain (Tie) | 48.8 mm (1.9 in) | tie | 91 years | 9 of 100 (Routine) |
| 3 July 2026 | Norwalk Wwtp, US | daily high min | 25.6 C (78.1 F) | 3.4 C (6.1 F) | 127 years | 48 of 100 (Notable) |
| 2 July 2026 | Norwalk Wwtp, US | daily high min | 25.0 C (77.0 F) | 0.6 C (1.1 F) | 8 years | 13 of 100 (Routine) |
| 1 July 2026 | Norwalk Wwtp, US | daily high min | 25.6 C (78.1 F) | 2.8 C (5.0 F) | 95 years | 45 of 100 (Notable) |
| 16 April 2026 | Norwalk Wwtp, US | daily high min | 17.2 C (63.0 F) | 0.5 C (0.9 F) | 13 years | 14 of 100 (Routine) |
| 15 April 2026 | Norwalk Wwtp, US | daily high min | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 72 years | 33 of 100 (Routine) |
| 14 April 2026 | Norwalk Wwtp, US | daily high min | 16.7 C (62.1 F) | 2.3 C (4.1 F) | 84 years | 39 of 100 (Notable) |
| 1 April 2026 | Norwalk Wwtp, US | daily rain | 46.2 mm (1.8 in) | 17.0 mm (0.7 in) | 121 years | 61 of 100 (Major) |
| 27 March 2026 | Norwalk Wwtp, US | daily rain | 31.2 mm (1.2 in) | 1.2 mm (0.05 in) | 112 years | 41 of 100 (Notable) |
| 11 March 2026 | Norwalk Wwtp, US | daily high min | 16.7 C (62.1 F) | 6.1 C (11.0 F) | 127 years | 50 of 100 (Notable) |
| 11 March 2026 | Norwalk Wwtp, US | daily high max | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 52 years | 25 of 100 (Routine) |
| 18 February 2026 | Norwalk Wwtp, US | daily high max (Tie) | 15.0 C (59.0 F) | tie | 76 years | 8 of 100 (Routine) |
| 15 January 2026 | Norwalk Wwtp, US | daily snowfall | 12.7 cm (5.0 in) | 2.5 cm (1.0 in) | 108 years | 46 of 100 (Notable) |
| 10 January 2026 | Norwalk Wwtp, US | daily high max | 16.7 C (62.1 F) | 1.7 C (3.1 F) | 76 years | 34 of 100 (Routine) |
| 29 December 2025 | Norwalk Wwtp, US | daily high max (Tie) | 18.3 C (64.9 F) | tie | 40 years | 5 of 100 (Routine) |
| 7 October 2025 | Norwalk Wwtp, US | daily high min (Tie) | 18.3 C (64.9 F) | tie | 18 years | 3 of 100 (Routine) |
| 17 August 2025 | Norwalk Wwtp, US | daily high min (Tie) | 22.8 C (73.0 F) | tie | 38 years | 5 of 100 (Routine) |
| 11 August 2025 | Norwalk Wwtp, US | daily high min | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 4 years | 12 of 100 (Routine) |
| 25 July 2025 | Norwalk Wwtp, US | daily high min (Tie) | 23.3 C (73.9 F) | tie | 115 years | 10 of 100 (Routine) |
Climate Trend
119 complete years, 1896 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1896 | 9.7 C | -0.38 C |
| 1897 | 9.9 C | -0.19 C |
| 1898 | 10.6 C | +0.56 C |
| 1899 | 10.2 C | +0.10 C |
| 1900 | 10.7 C | +0.63 C |
| 1901 | 9.8 C | -0.24 C |
| 1902 | 9.8 C | -0.29 C |
| 1903 | 9.9 C | -0.17 C |
| 1904 | 8.6 C | -1.50 C |
| 1905 | 9.7 C | -0.39 C |
| 1906 | 10.8 C | +0.72 C |
| 1907 | 8.6 C | -1.43 C |
| 1908 | 10.1 C | +0.05 C |
| 1909 | 9.7 C | -0.32 C |
| 1910 | 9.5 C | -0.51 C |
| 1911 | 11.0 C | +0.94 C |
| 1912 | 9.4 C | -0.62 C |
| 1913 | 10.9 C | +0.83 C |
| 1914 | 9.9 C | -0.13 C |
| 1915 | 9.8 C | -0.23 C |
| 1916 | 9.9 C | -0.17 C |
| 1917 | 8.1 C | -1.99 C |
| 1918 | 10.0 C | -0.02 C |
| 1919 | 10.7 C | +0.63 C |
| 1920 | 9.7 C | -0.33 C |
| 1921 | 12.1 C | +2.08 C |
| 1922 | 10.9 C | +0.87 C |
| 1923 | 10.1 C | +0.06 C |
| 1924 | 8.9 C | -1.15 C |
| 1925 | 10.1 C | +0.05 C |
| 1926 | 9.2 C | -0.86 C |
| 1927 | 10.6 C | +0.52 C |
| 1928 | 10.4 C | +0.31 C |
| 1929 | 9.8 C | -0.30 C |
| 1930 | 10.8 C | +0.74 C |
| 1931 | 11.9 C | +1.85 C |
| 1932 | 10.8 C | +0.73 C |
| 1933 | 11.2 C | +1.11 C |
| 1934 | 10.4 C | +0.36 C |
| 1935 | 9.6 C | -0.47 C |
| 1936 | 9.9 C | -0.15 C |
| 1937 | 10.1 C | +0.01 C |
| 1938 | 11.5 C | +1.45 C |
| 1939 | 11.0 C | +0.96 C |
| 1940 | 8.8 C | -1.29 C |
| 1941 | 10.7 C | +0.68 C |
| 1942 | 10.3 C | +0.24 C |
| 1943 | 9.8 C | -0.27 C |
| 1944 | 10.6 C | +0.56 C |
| 1945 | 9.9 C | -0.17 C |
| 1946 | 10.7 C | +0.66 C |
| 1947 | 9.8 C | -0.23 C |
| 1948 | 9.7 C | -0.31 C |
| 1949 | 11.2 C | +1.17 C |
| 1951 | 9.7 C | -0.36 C |
| 1954 | 10.9 C | +0.81 C |
| 1957 | 10.3 C | +0.23 C |
| 1960 | 8.8 C | -1.24 C |
| 1961 | 9.6 C | -0.42 C |
| 1962 | 10.0 C | -0.10 C |
| 1963 | 9.6 C | -0.41 C |
| 1965 | 10.0 C | -0.05 C |
| 1966 | 9.6 C | -0.43 C |
| 1967 | 9.6 C | -0.49 C |
| 1969 | 9.3 C | -0.77 C |
| 1970 | 9.8 C | -0.25 C |
| 1971 | 9.6 C | -0.48 C |
| 1972 | 8.2 C | -1.89 C |
| 1973 | 10.6 C | +0.58 C |
| 1974 | 9.3 C | -0.77 C |
| 1975 | 9.9 C | -0.15 C |
| 1976 | 8.9 C | -1.13 C |
| 1977 | 9.1 C | -0.91 C |
| 1978 | 8.1 C | -1.95 C |
| 1979 | 9.0 C | -1.06 C |
| 1980 | 9.0 C | -1.02 C |
| 1981 | 9.3 C | -0.77 C |
| 1982 | 9.6 C | -0.41 C |
| 1983 | 9.6 C | -0.43 C |
| 1984 | 9.6 C | -0.50 C |
| 1985 | 9.6 C | -0.48 C |
| 1986 | 9.9 C | -0.11 C |
| 1987 | 10.3 C | +0.20 C |
| 1988 | 8.9 C | -1.16 C |
| 1989 | 8.3 C | -1.71 C |
| 1990 | 10.8 C | +0.79 C |
| 1991 | 11.1 C | +1.01 C |
| 1992 | 9.3 C | -0.78 C |
| 1993 | 9.4 C | -0.63 C |
| 1994 | 9.6 C | -0.44 C |
| 1995 | 9.4 C | -0.64 C |
| 1996 | 9.0 C | -1.08 C |
| 1997 | 9.2 C | -0.81 C |
| 1998 | 11.8 C | +1.77 C |
| 1999 | 10.6 C | +0.54 C |
| 2000 | 9.7 C | -0.36 C |
| 2001 | 10.7 C | +0.69 C |
| 2002 | 10.9 C | +0.80 C |
| 2003 | 9.3 C | -0.77 C |
| 2004 | 9.8 C | -0.21 C |
| 2005 | 10.3 C | +0.22 C |
| 2006 | 11.0 C | +0.95 C |
| 2009 | 9.7 C | -0.39 C |
| 2010 | 10.6 C | +0.54 C |
| 2011 | 10.8 C | +0.74 C |
| 2012 | 12.0 C | +1.93 C |
| 2013 | 10.0 C | -0.10 C |
| 2014 | 8.8 C | -1.27 C |
| 2015 | 10.2 C | +0.13 C |
| 2016 | 11.5 C | +1.40 C |
| 2017 | 11.3 C | +1.25 C |
| 2018 | 10.5 C | +0.44 C |
| 2019 | 10.5 C | +0.48 C |
| 2020 | 11.1 C | +1.07 C |
| 2021 | 11.4 C | +1.38 C |
| 2022 | 10.6 C | +0.52 C |
| 2023 | 11.4 C | +1.33 C |
| 2024 | 12.0 C | +1.96 C |
| 2025 | 10.5 C | +0.41 C |
The fitted trend in annual mean temperature here over 1896 to 2025 is 0.02 C (-0.02 to 0.06) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.04 F (-0.03 to 0.12) per decade. The slope is a straight line fitted to 119 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 (-0.02 to 0.06) per decade | 0.04 F (-0.03 to 0.12) per decade | 1896 to 2025 | 119 | Not clearly different from zero |
| Mean daily maximum | -0.08 C (-0.12 to -0.04) per decade | -0.1 F (-0.2 to -0.1) per decade | 1896 to 2025 | 119 | Fall |
| Mean daily minimum | 0.1 C (0.1 to 0.2) per decade | 0.2 F (0.2 to 0.3) per decade | 1896 to 2025 | 119 | 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
1894 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 1934 | 35.6 C (96.1 F) | 133 |
| Coldest night (TNn) | -31.7 C (-25.1 F) | 1929 | -22.2 C (-8.0 F) | 133 |
| Wettest day (Rx1day) | 229.1 mm (9.0 in) | 1969 | 51.6 mm (2.0 in) | 133 |
| Wettest five days (Rx5day) | 251.5 mm (9.9 in) | 1969 | 80.4 mm (3.2 in) | 132 |
| Longest dry spell (CDD) | 36 days | 2026 | 15 days | 133 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1894 | 37.2 C (99.0 F) |
| 1895 | 37.8 C (100.0 F) |
| 1896 | 36.7 C (98.1 F) |
| 1897 | 37.8 C (100.0 F) |
| 1898 | 37.8 C (100.0 F) |
| 1899 | 36.7 C (98.1 F) |
| 1900 | 37.8 C (100.0 F) |
| 1901 | 39.4 C (102.9 F) |
| 1902 | 35.0 C (95.0 F) |
| 1903 | 36.7 C (98.1 F) |
| 1904 | 35.0 C (95.0 F) |
| 1905 | 36.7 C (98.1 F) |
| 1906 | 37.2 C (99.0 F) |
| 1907 | 33.3 C (91.9 F) |
| 1908 | 37.2 C (99.0 F) |
| 1909 | 34.4 C (93.9 F) |
| 1910 | 36.1 C (97.0 F) |
| 1911 | 39.4 C (102.9 F) |
| 1912 | 36.1 C (97.0 F) |
| 1913 | 38.3 C (100.9 F) |
| 1914 | 37.8 C (100.0 F) |
| 1915 | 33.3 C (91.9 F) |
| 1916 | 40.0 C (104.0 F) |
| 1917 | 36.7 C (98.1 F) |
| 1918 | 40.0 C (104.0 F) |
| 1919 | 37.2 C (99.0 F) |
| 1920 | 34.4 C (93.9 F) |
| 1921 | 37.8 C (100.0 F) |
| 1922 | 36.7 C (98.1 F) |
| 1923 | 37.2 C (99.0 F) |
| 1924 | 36.1 C (97.0 F) |
| 1925 | 37.2 C (99.0 F) |
| 1926 | 37.2 C (99.0 F) |
| 1927 | 36.1 C (97.0 F) |
| 1928 | 36.1 C (97.0 F) |
| 1929 | 35.6 C (96.1 F) |
| 1930 | 41.7 C (107.1 F) |
| 1931 | 39.4 C (102.9 F) |
| 1932 | 38.9 C (102.0 F) |
| 1933 | 40.0 C (104.0 F) |
| 1934 | 42.2 C (108.0 F) |
| 1935 | 37.8 C (100.0 F) |
| 1936 | 41.7 C (107.1 F) |
| 1937 | 35.6 C (96.1 F) |
| 1938 | 35.6 C (96.1 F) |
| 1939 | 38.9 C (102.0 F) |
| 1940 | 36.7 C (98.1 F) |
| 1941 | 38.3 C (100.9 F) |
| 1942 | 36.1 C (97.0 F) |
| 1943 | 35.0 C (95.0 F) |
| 1944 | 36.7 C (98.1 F) |
| 1945 | 34.4 C (93.9 F) |
| 1946 | 33.9 C (93.0 F) |
| 1947 | 36.1 C (97.0 F) |
| 1948 | 36.1 C (97.0 F) |
| 1949 | 37.8 C (100.0 F) |
| 1950 | 33.3 C (91.9 F) |
| 1951 | 36.1 C (97.0 F) |
| 1952 | 38.9 C (102.0 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 36.7 C (98.1 F) |
| 1955 | 36.1 C (97.0 F) |
| 1956 | 34.4 C (93.9 F) |
| 1957 | 34.4 C (93.9 F) |
| 1958 | 33.3 C (91.9 F) |
| 1959 | 36.1 C (97.0 F) |
| 1960 | 33.3 C (91.9 F) |
| 1961 | 33.9 C (93.0 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 37.2 C (99.0 F) |
| 1966 | 36.7 C (98.1 F) |
| 1967 | 35.6 C (96.1 F) |
| 1968 | 35.0 C (95.0 F) |
| 1969 | 34.4 C (93.9 F) |
| 1970 | 35.0 C (95.0 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 33.3 C (91.9 F) |
| 1973 | 34.4 C (93.9 F) |
| 1974 | 36.1 C (97.0 F) |
| 1975 | 35.0 C (95.0 F) |
| 1976 | 36.1 C (97.0 F) |
| 1977 | 35.0 C (95.0 F) |
| 1978 | 34.4 C (93.9 F) |
| 1979 | 33.3 C (91.9 F) |
| 1980 | 36.7 C (98.1 F) |
| 1981 | 35.6 C (96.1 F) |
| 1982 | 32.8 C (91.0 F) |
| 1983 | 35.0 C (95.0 F) |
| 1984 | 34.4 C (93.9 F) |
| 1985 | 33.9 C (93.0 F) |
| 1986 | 33.3 C (91.9 F) |
| 1987 | 35.0 C (95.0 F) |
| 1988 | 39.4 C (102.9 F) |
| 1989 | 35.0 C (95.0 F) |
| 1990 | 36.7 C (98.1 F) |
| 1991 | 35.0 C (95.0 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 35.6 C (96.1 F) |
| 1994 | 35.0 C (95.0 F) |
| 1995 | 36.1 C (97.0 F) |
| 1996 | 33.3 C (91.9 F) |
| 1997 | 33.9 C (93.0 F) |
| 1998 | 34.4 C (93.9 F) |
| 1999 | 36.1 C (97.0 F) |
| 2000 | 32.2 C (90.0 F) |
| 2001 | 34.4 C (93.9 F) |
| 2002 | 35.0 C (95.0 F) |
| 2003 | 32.8 C (91.0 F) |
| 2004 | 32.8 C (91.0 F) |
| 2005 | 34.4 C (93.9 F) |
| 2006 | 33.9 C (93.0 F) |
| 2007 | 34.4 C (93.9 F) |
| 2008 | 33.3 C (91.9 F) |
| 2009 | 35.0 C (95.0 F) |
| 2010 | 36.1 C (97.0 F) |
| 2011 | 37.8 C (100.0 F) |
| 2012 | 37.8 C (100.0 F) |
| 2013 | 36.1 C (97.0 F) |
| 2014 | 34.4 C (93.9 F) |
| 2015 | 33.9 C (93.0 F) |
| 2016 | 35.0 C (95.0 F) |
| 2017 | 33.9 C (93.0 F) |
| 2018 | 35.0 C (95.0 F) |
| 2019 | 35.0 C (95.0 F) |
| 2020 | 35.6 C (96.1 F) |
| 2021 | 33.3 C (91.9 F) |
| 2022 | 35.6 C (96.1 F) |
| 2023 | 32.2 C (90.0 F) |
| 2024 | 34.4 C (93.9 F) |
| 2025 | 35.0 C (95.0 F) |
| 2026 | 36.1 C (97.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1894 | -22.2 C (-8.0 F) |
| 1895 | -26.1 C (-15.0 F) |
| 1896 | -23.3 C (-9.9 F) |
| 1897 | -30.0 C (-22.0 F) |
| 1898 | -21.7 C (-7.1 F) |
| 1899 | -30.0 C (-22.0 F) |
| 1900 | -21.7 C (-7.1 F) |
| 1901 | -25.0 C (-13.0 F) |
| 1902 | -21.7 C (-7.1 F) |
| 1903 | -22.2 C (-8.0 F) |
| 1904 | -27.2 C (-17.0 F) |
| 1905 | -25.6 C (-14.1 F) |
| 1906 | -24.4 C (-11.9 F) |
| 1907 | -24.4 C (-11.9 F) |
| 1908 | -18.3 C (-0.9 F) |
| 1909 | -23.9 C (-11.0 F) |
| 1910 | -22.8 C (-9.0 F) |
| 1911 | -25.0 C (-13.0 F) |
| 1912 | -30.6 C (-23.1 F) |
| 1913 | -19.4 C (-2.9 F) |
| 1914 | -26.7 C (-16.1 F) |
| 1915 | -27.2 C (-17.0 F) |
| 1916 | -20.0 C (-4.0 F) |
| 1917 | -29.4 C (-20.9 F) |
| 1918 | -31.1 C (-24.0 F) |
| 1919 | -18.9 C (-2.0 F) |
| 1920 | -20.6 C (-5.1 F) |
| 1921 | -11.7 C (10.9 F) |
| 1922 | -25.0 C (-13.0 F) |
| 1923 | -17.8 C (0.0 F) |
| 1924 | -25.6 C (-14.1 F) |
| 1925 | -19.4 C (-2.9 F) |
| 1926 | -22.8 C (-9.0 F) |
| 1927 | -23.3 C (-9.9 F) |
| 1928 | -19.4 C (-2.9 F) |
| 1929 | -31.7 C (-25.1 F) |
| 1930 | -23.9 C (-11.0 F) |
| 1931 | -18.9 C (-2.0 F) |
| 1932 | -22.8 C (-9.0 F) |
| 1933 | -21.7 C (-7.1 F) |
| 1934 | -29.4 C (-20.9 F) |
| 1935 | -20.6 C (-5.1 F) |
| 1936 | -26.1 C (-15.0 F) |
| 1937 | -17.2 C (1.0 F) |
| 1938 | -18.3 C (-0.9 F) |
| 1939 | -17.8 C (0.0 F) |
| 1940 | -25.6 C (-14.1 F) |
| 1941 | -16.1 C (3.0 F) |
| 1942 | -25.6 C (-14.1 F) |
| 1943 | -23.3 C (-9.9 F) |
| 1944 | -25.6 C (-14.1 F) |
| 1945 | -21.7 C (-7.1 F) |
| 1946 | -22.2 C (-8.0 F) |
| 1947 | -20.0 C (-4.0 F) |
| 1948 | -26.1 C (-15.0 F) |
| 1949 | -16.7 C (1.9 F) |
| 1950 | -27.2 C (-17.0 F) |
| 1951 | -23.3 C (-9.9 F) |
| 1952 | -18.9 C (-2.0 F) |
| 1953 | -17.2 C (1.0 F) |
| 1954 | -19.4 C (-2.9 F) |
| 1955 | -20.6 C (-5.1 F) |
| 1956 | -18.9 C (-2.0 F) |
| 1957 | -25.0 C (-13.0 F) |
| 1958 | -22.8 C (-9.0 F) |
| 1959 | -21.7 C (-7.1 F) |
| 1960 | -22.2 C (-8.0 F) |
| 1961 | -23.3 C (-9.9 F) |
| 1962 | -22.8 C (-9.0 F) |
| 1963 | -27.2 C (-17.0 F) |
| 1964 | -20.6 C (-5.1 F) |
| 1965 | -23.9 C (-11.0 F) |
| 1966 | -22.2 C (-8.0 F) |
| 1967 | -26.7 C (-16.1 F) |
| 1968 | -24.4 C (-11.9 F) |
| 1969 | -18.9 C (-2.0 F) |
| 1970 | -22.2 C (-8.0 F) |
| 1971 | -21.7 C (-7.1 F) |
| 1972 | -26.7 C (-16.1 F) |
| 1973 | -21.7 C (-7.1 F) |
| 1974 | -20.0 C (-4.0 F) |
| 1975 | -22.8 C (-9.0 F) |
| 1976 | -23.3 C (-9.9 F) |
| 1977 | -26.7 C (-16.1 F) |
| 1978 | -23.9 C (-11.0 F) |
| 1979 | -22.8 C (-9.0 F) |
| 1980 | -20.6 C (-5.1 F) |
| 1981 | -23.9 C (-11.0 F) |
| 1982 | -26.7 C (-16.1 F) |
| 1983 | -25.0 C (-13.0 F) |
| 1984 | -27.2 C (-17.0 F) |
| 1985 | -27.8 C (-18.0 F) |
| 1986 | -18.3 C (-0.9 F) |
| 1987 | -19.4 C (-2.9 F) |
| 1988 | -21.1 C (-6.0 F) |
| 1989 | -27.2 C (-17.0 F) |
| 1990 | -15.6 C (3.9 F) |
| 1991 | -18.9 C (-2.0 F) |
| 1992 | -21.1 C (-6.0 F) |
| 1993 | -20.0 C (-4.0 F) |
| 1994 | -29.4 C (-20.9 F) |
| 1995 | -19.4 C (-2.9 F) |
| 1996 | -21.1 C (-6.0 F) |
| 1997 | -19.4 C (-2.9 F) |
| 1998 | -13.9 C (7.0 F) |
| 1999 | -20.6 C (-5.1 F) |
| 2000 | -20.6 C (-5.1 F) |
| 2001 | -16.7 C (1.9 F) |
| 2002 | -16.7 C (1.9 F) |
| 2003 | -22.2 C (-8.0 F) |
| 2004 | -23.9 C (-11.0 F) |
| 2005 | -21.1 C (-6.0 F) |
| 2006 | -14.4 C (6.1 F) |
| 2007 | -22.2 C (-8.0 F) |
| 2008 | -18.3 C (-0.9 F) |
| 2009 | -25.6 C (-14.1 F) |
| 2010 | -18.3 C (-0.9 F) |
| 2011 | -20.0 C (-4.0 F) |
| 2012 | -16.1 C (3.0 F) |
| 2013 | -16.1 C (3.0 F) |
| 2014 | -25.0 C (-13.0 F) |
| 2015 | -24.4 C (-11.9 F) |
| 2016 | -19.4 C (-2.9 F) |
| 2017 | -18.9 C (-2.0 F) |
| 2018 | -20.6 C (-5.1 F) |
| 2019 | -22.8 C (-9.0 F) |
| 2020 | -12.8 C (9.0 F) |
| 2021 | -18.9 C (-2.0 F) |
| 2022 | -21.1 C (-6.0 F) |
| 2023 | -12.8 C (9.0 F) |
| 2024 | -18.3 C (-0.9 F) |
| 2025 | -21.1 C (-6.0 F) |
| 2026 | -21.1 C (-6.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1894 | 40.6 mm (1.6 in) |
| 1895 | 40.6 mm (1.6 in) |
| 1896 | 53.3 mm (2.1 in) |
| 1897 | 67.8 mm (2.7 in) |
| 1898 | 36.8 mm (1.4 in) |
| 1899 | 45.2 mm (1.8 in) |
| 1900 | 93.0 mm (3.7 in) |
| 1901 | 35.1 mm (1.4 in) |
| 1902 | 45.2 mm (1.8 in) |
| 1903 | 74.9 mm (2.9 in) |
| 1904 | 63.8 mm (2.5 in) |
| 1905 | 69.9 mm (2.8 in) |
| 1906 | 55.9 mm (2.2 in) |
| 1907 | 48.3 mm (1.9 in) |
| 1908 | 34.3 mm (1.4 in) |
| 1909 | 50.8 mm (2.0 in) |
| 1910 | 57.2 mm (2.3 in) |
| 1911 | 48.0 mm (1.9 in) |
| 1912 | 55.6 mm (2.2 in) |
| 1913 | 74.4 mm (2.9 in) |
| 1914 | 37.1 mm (1.5 in) |
| 1915 | 50.8 mm (2.0 in) |
| 1916 | 44.5 mm (1.8 in) |
| 1917 | 58.4 mm (2.3 in) |
| 1918 | 46.0 mm (1.8 in) |
| 1919 | 85.6 mm (3.4 in) |
| 1920 | 63.5 mm (2.5 in) |
| 1921 | 41.4 mm (1.6 in) |
| 1922 | 89.4 mm (3.5 in) |
| 1923 | 43.4 mm (1.7 in) |
| 1924 | 47.8 mm (1.9 in) |
| 1925 | 49.3 mm (1.9 in) |
| 1926 | 53.6 mm (2.1 in) |
| 1927 | 30.7 mm (1.2 in) |
| 1928 | 51.3 mm (2.0 in) |
| 1929 | 95.0 mm (3.7 in) |
| 1930 | 29.7 mm (1.2 in) |
| 1931 | 53.3 mm (2.1 in) |
| 1932 | 43.2 mm (1.7 in) |
| 1933 | 42.4 mm (1.7 in) |
| 1934 | 76.2 mm (3.0 in) |
| 1935 | 48.8 mm (1.9 in) |
| 1936 | 52.6 mm (2.1 in) |
| 1937 | 67.8 mm (2.7 in) |
| 1938 | 56.4 mm (2.2 in) |
| 1939 | 31.5 mm (1.2 in) |
| 1940 | 48.3 mm (1.9 in) |
| 1941 | 38.6 mm (1.5 in) |
| 1942 | 47.2 mm (1.9 in) |
| 1943 | 35.8 mm (1.4 in) |
| 1944 | 60.5 mm (2.4 in) |
| 1945 | 39.6 mm (1.6 in) |
| 1946 | 68.6 mm (2.7 in) |
| 1947 | 46.0 mm (1.8 in) |
| 1948 | 111.3 mm (4.4 in) |
| 1949 | 46.7 mm (1.8 in) |
| 1950 | 58.9 mm (2.3 in) |
| 1951 | 36.1 mm (1.4 in) |
| 1952 | 48.0 mm (1.9 in) |
| 1953 | 51.6 mm (2.0 in) |
| 1954 | 52.3 mm (2.1 in) |
| 1955 | 59.7 mm (2.4 in) |
| 1956 | 72.6 mm (2.9 in) |
| 1957 | 62.0 mm (2.4 in) |
| 1958 | 71.1 mm (2.8 in) |
| 1959 | 71.4 mm (2.8 in) |
| 1960 | 41.4 mm (1.6 in) |
| 1961 | 47.8 mm (1.9 in) |
| 1962 | 62.2 mm (2.4 in) |
| 1963 | 21.6 mm (0.9 in) |
| 1964 | 31.2 mm (1.2 in) |
| 1965 | 36.1 mm (1.4 in) |
| 1966 | 176.0 mm (6.9 in) |
| 1967 | 104.9 mm (4.1 in) |
| 1968 | 51.8 mm (2.0 in) |
| 1969 | 229.1 mm (9.0 in) |
| 1970 | 31.0 mm (1.2 in) |
| 1971 | 55.9 mm (2.2 in) |
| 1972 | 79.2 mm (3.1 in) |
| 1973 | 46.5 mm (1.8 in) |
| 1974 | 50.8 mm (2.0 in) |
| 1975 | 32.8 mm (1.3 in) |
| 1976 | 48.5 mm (1.9 in) |
| 1977 | 93.7 mm (3.7 in) |
| 1978 | 38.9 mm (1.5 in) |
| 1979 | 55.6 mm (2.2 in) |
| 1980 | 43.9 mm (1.7 in) |
| 1981 | 59.4 mm (2.3 in) |
| 1982 | 87.6 mm (3.4 in) |
| 1983 | 40.6 mm (1.6 in) |
| 1984 | 40.9 mm (1.6 in) |
| 1985 | 51.6 mm (2.0 in) |
| 1986 | 45.0 mm (1.8 in) |
| 1987 | 42.7 mm (1.7 in) |
| 1988 | 34.8 mm (1.4 in) |
| 1989 | 36.3 mm (1.4 in) |
| 1990 | 91.4 mm (3.6 in) |
| 1991 | 57.4 mm (2.3 in) |
| 1992 | 50.8 mm (2.0 in) |
| 1993 | 34.0 mm (1.3 in) |
| 1994 | 96.0 mm (3.8 in) |
| 1995 | 57.2 mm (2.3 in) |
| 1996 | 65.3 mm (2.6 in) |
| 1997 | 55.9 mm (2.2 in) |
| 1998 | 53.3 mm (2.1 in) |
| 1999 | 64.0 mm (2.5 in) |
| 2000 | 123.7 mm (4.9 in) |
| 2001 | 41.9 mm (1.6 in) |
| 2002 | 39.9 mm (1.6 in) |
| 2003 | 50.0 mm (2.0 in) |
| 2004 | 65.3 mm (2.6 in) |
| 2005 | 42.7 mm (1.7 in) |
| 2006 | 137.7 mm (5.4 in) |
| 2007 | 105.2 mm (4.1 in) |
| 2008 | 47.8 mm (1.9 in) |
| 2009 | 40.1 mm (1.6 in) |
| 2010 | 39.9 mm (1.6 in) |
| 2011 | 54.9 mm (2.2 in) |
| 2012 | 67.3 mm (2.6 in) |
| 2013 | 72.6 mm (2.9 in) |
| 2014 | 59.7 mm (2.4 in) |
| 2015 | 55.4 mm (2.2 in) |
| 2016 | 41.4 mm (1.6 in) |
| 2017 | 57.2 mm (2.3 in) |
| 2018 | 57.9 mm (2.3 in) |
| 2019 | 41.9 mm (1.6 in) |
| 2020 | 78.7 mm (3.1 in) |
| 2021 | 67.1 mm (2.6 in) |
| 2022 | 55.6 mm (2.2 in) |
| 2023 | 101.6 mm (4.0 in) |
| 2024 | 38.4 mm (1.5 in) |
| 2025 | 47.8 mm (1.9 in) |
| 2026 | 68.6 mm (2.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1894 | 48.3 mm (1.9 in) |
| 1895 | n/a |
| 1896 | 61.0 mm (2.4 in) |
| 1897 | 73.9 mm (2.9 in) |
| 1898 | 63.0 mm (2.5 in) |
| 1899 | 63.0 mm (2.5 in) |
| 1900 | 122.2 mm (4.8 in) |
| 1901 | 55.6 mm (2.2 in) |
| 1902 | 107.2 mm (4.2 in) |
| 1903 | 90.4 mm (3.6 in) |
| 1904 | 117.9 mm (4.6 in) |
| 1905 | 95.8 mm (3.8 in) |
| 1906 | 122.5 mm (4.8 in) |
| 1907 | 61.0 mm (2.4 in) |
| 1908 | 50.6 mm (2.0 in) |
| 1909 | 86.9 mm (3.4 in) |
| 1910 | 114.3 mm (4.5 in) |
| 1911 | 76.0 mm (3.0 in) |
| 1912 | 89.4 mm (3.5 in) |
| 1913 | 220.2 mm (8.7 in) |
| 1914 | 84.6 mm (3.3 in) |
| 1915 | 72.5 mm (2.9 in) |
| 1916 | 64.0 mm (2.5 in) |
| 1917 | 72.4 mm (2.9 in) |
| 1918 | 79.8 mm (3.1 in) |
| 1919 | 130.8 mm (5.1 in) |
| 1920 | 83.8 mm (3.3 in) |
| 1921 | 59.9 mm (2.4 in) |
| 1922 | 108.4 mm (4.3 in) |
| 1923 | 79.7 mm (3.1 in) |
| 1924 | 87.5 mm (3.4 in) |
| 1925 | 119.6 mm (4.7 in) |
| 1926 | 84.0 mm (3.3 in) |
| 1927 | 60.5 mm (2.4 in) |
| 1928 | 67.3 mm (2.6 in) |
| 1929 | 118.2 mm (4.7 in) |
| 1930 | 78.5 mm (3.1 in) |
| 1931 | 139.2 mm (5.5 in) |
| 1932 | 55.9 mm (2.2 in) |
| 1933 | 56.3 mm (2.2 in) |
| 1934 | 77.0 mm (3.0 in) |
| 1935 | 69.4 mm (2.7 in) |
| 1936 | 60.2 mm (2.4 in) |
| 1937 | 127.7 mm (5.0 in) |
| 1938 | 76.9 mm (3.0 in) |
| 1939 | 48.0 mm (1.9 in) |
| 1940 | 84.4 mm (3.3 in) |
| 1941 | 68.8 mm (2.7 in) |
| 1942 | 92.2 mm (3.6 in) |
| 1943 | 79.0 mm (3.1 in) |
| 1944 | 114.6 mm (4.5 in) |
| 1945 | 110.3 mm (4.3 in) |
| 1946 | 90.7 mm (3.6 in) |
| 1947 | 86.1 mm (3.4 in) |
| 1948 | 129.4 mm (5.1 in) |
| 1949 | 93.7 mm (3.7 in) |
| 1950 | 99.6 mm (3.9 in) |
| 1951 | 52.9 mm (2.1 in) |
| 1952 | 57.7 mm (2.3 in) |
| 1953 | 112.6 mm (4.4 in) |
| 1954 | 74.4 mm (2.9 in) |
| 1955 | 92.8 mm (3.7 in) |
| 1956 | 91.4 mm (3.6 in) |
| 1957 | 80.5 mm (3.2 in) |
| 1958 | 101.9 mm (4.0 in) |
| 1959 | 84.6 mm (3.3 in) |
| 1960 | 76.6 mm (3.0 in) |
| 1961 | 102.7 mm (4.0 in) |
| 1962 | 66.5 mm (2.6 in) |
| 1963 | 55.4 mm (2.2 in) |
| 1964 | 59.5 mm (2.3 in) |
| 1965 | 60.7 mm (2.4 in) |
| 1966 | 205.2 mm (8.1 in) |
| 1967 | 112.6 mm (4.4 in) |
| 1968 | 76.9 mm (3.0 in) |
| 1969 | 251.5 mm (9.9 in) |
| 1970 | 58.7 mm (2.3 in) |
| 1971 | 57.2 mm (2.3 in) |
| 1972 | 118.4 mm (4.7 in) |
| 1973 | 69.8 mm (2.7 in) |
| 1974 | 63.5 mm (2.5 in) |
| 1975 | 64.8 mm (2.6 in) |
| 1976 | 79.8 mm (3.1 in) |
| 1977 | 166.8 mm (6.6 in) |
| 1978 | 79.0 mm (3.1 in) |
| 1979 | 73.1 mm (2.9 in) |
| 1980 | 81.2 mm (3.2 in) |
| 1981 | 75.4 mm (3.0 in) |
| 1982 | 113.2 mm (4.5 in) |
| 1983 | 80.2 mm (3.2 in) |
| 1984 | 86.1 mm (3.4 in) |
| 1985 | 83.9 mm (3.3 in) |
| 1986 | 80.3 mm (3.2 in) |
| 1987 | 77.2 mm (3.0 in) |
| 1988 | 55.1 mm (2.2 in) |
| 1989 | 69.9 mm (2.8 in) |
| 1990 | 115.0 mm (4.5 in) |
| 1991 | 60.5 mm (2.4 in) |
| 1992 | 87.2 mm (3.4 in) |
| 1993 | 71.4 mm (2.8 in) |
| 1994 | 106.2 mm (4.2 in) |
| 1995 | 76.3 mm (3.0 in) |
| 1996 | 94.0 mm (3.7 in) |
| 1997 | 89.7 mm (3.5 in) |
| 1998 | 89.7 mm (3.5 in) |
| 1999 | 93.2 mm (3.7 in) |
| 2000 | 156.9 mm (6.2 in) |
| 2001 | 54.4 mm (2.1 in) |
| 2002 | 68.3 mm (2.7 in) |
| 2003 | 82.1 mm (3.2 in) |
| 2004 | 75.5 mm (3.0 in) |
| 2005 | 93.3 mm (3.7 in) |
| 2006 | 178.0 mm (7.0 in) |
| 2007 | 140.5 mm (5.5 in) |
| 2008 | 115.4 mm (4.5 in) |
| 2009 | 79.0 mm (3.1 in) |
| 2010 | 72.5 mm (2.9 in) |
| 2011 | 79.4 mm (3.1 in) |
| 2012 | 161.8 mm (6.4 in) |
| 2013 | 163.3 mm (6.4 in) |
| 2014 | 73.6 mm (2.9 in) |
| 2015 | 87.1 mm (3.4 in) |
| 2016 | 72.3 mm (2.8 in) |
| 2017 | 76.8 mm (3.0 in) |
| 2018 | 93.5 mm (3.7 in) |
| 2019 | 72.4 mm (2.9 in) |
| 2020 | 84.5 mm (3.3 in) |
| 2021 | 89.9 mm (3.5 in) |
| 2022 | 73.4 mm (2.9 in) |
| 2023 | 119.9 mm (4.7 in) |
| 2024 | 57.5 mm (2.3 in) |
| 2025 | 76.1 mm (3.0 in) |
| 2026 | 134.7 mm (5.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1894 | 1 day |
| 1895 | 1 day |
| 1896 | 8 days |
| 1897 | 10 days |
| 1898 | 12 days |
| 1899 | 14 days |
| 1900 | 14 days |
| 1901 | 21 days |
| 1902 | 18 days |
| 1903 | 26 days |
| 1904 | 30 days |
| 1905 | 18 days |
| 1906 | 22 days |
| 1907 | 15 days |
| 1908 | 34 days |
| 1909 | 12 days |
| 1910 | 19 days |
| 1911 | 12 days |
| 1912 | 18 days |
| 1913 | 13 days |
| 1914 | 15 days |
| 1915 | 23 days |
| 1916 | 17 days |
| 1917 | 20 days |
| 1918 | 19 days |
| 1919 | 21 days |
| 1920 | 23 days |
| 1921 | 12 days |
| 1922 | 25 days |
| 1923 | 16 days |
| 1924 | 16 days |
| 1925 | 14 days |
| 1926 | 13 days |
| 1927 | 14 days |
| 1928 | 15 days |
| 1929 | 13 days |
| 1930 | 11 days |
| 1931 | 14 days |
| 1932 | 16 days |
| 1933 | 22 days |
| 1934 | 21 days |
| 1935 | 16 days |
| 1936 | 27 days |
| 1937 | 15 days |
| 1938 | 21 days |
| 1939 | 15 days |
| 1940 | 12 days |
| 1941 | 14 days |
| 1942 | 15 days |
| 1943 | 19 days |
| 1944 | 17 days |
| 1945 | 12 days |
| 1946 | 14 days |
| 1947 | 15 days |
| 1948 | 18 days |
| 1949 | 17 days |
| 1950 | 12 days |
| 1951 | 15 days |
| 1952 | 18 days |
| 1953 | 26 days |
| 1954 | 14 days |
| 1955 | 15 days |
| 1956 | 17 days |
| 1957 | 23 days |
| 1958 | 13 days |
| 1959 | 16 days |
| 1960 | 17 days |
| 1961 | 18 days |
| 1962 | 17 days |
| 1963 | 31 days |
| 1964 | 18 days |
| 1965 | 18 days |
| 1966 | 15 days |
| 1967 | 25 days |
| 1968 | 12 days |
| 1969 | 29 days |
| 1970 | 19 days |
| 1971 | 12 days |
| 1972 | 13 days |
| 1973 | 18 days |
| 1974 | 10 days |
| 1975 | 15 days |
| 1976 | 13 days |
| 1977 | 20 days |
| 1978 | 17 days |
| 1979 | 19 days |
| 1980 | 21 days |
| 1981 | 20 days |
| 1982 | 19 days |
| 1983 | 18 days |
| 1984 | 15 days |
| 1985 | 13 days |
| 1986 | 15 days |
| 1987 | 19 days |
| 1988 | 20 days |
| 1989 | 17 days |
| 1990 | 15 days |
| 1991 | 14 days |
| 1992 | 12 days |
| 1993 | 12 days |
| 1994 | 14 days |
| 1995 | 19 days |
| 1996 | 16 days |
| 1997 | 12 days |
| 1998 | 22 days |
| 1999 | 21 days |
| 2000 | 12 days |
| 2001 | 18 days |
| 2002 | 13 days |
| 2003 | 12 days |
| 2004 | 14 days |
| 2005 | 13 days |
| 2006 | 11 days |
| 2007 | 18 days |
| 2008 | 15 days |
| 2009 | 13 days |
| 2010 | 13 days |
| 2011 | 14 days |
| 2012 | 18 days |
| 2013 | 13 days |
| 2014 | 13 days |
| 2015 | 14 days |
| 2016 | 15 days |
| 2017 | 15 days |
| 2018 | 14 days |
| 2019 | 13 days |
| 2020 | 14 days |
| 2021 | 16 days |
| 2022 | 14 days |
| 2023 | 22 days |
| 2024 | 34 days |
| 2025 | 33 days |
| 2026 | 36 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
119 years with a frostAcross 119 years with a frost, the median last spring frost at Norwalk Wwtp falls on 1 May and the median first autumn frost on 15 October, which leaves a median of 167 days between them.
In 1994 to 2025 the median growing season was 184 days. That is 28 days more than in 1896 to 1925.
Fitted over all years, the growing season changes by +2.7 days per decade at this station.
| Measure | Median, all years | Earliest period (1896 to 1925) | Recent period (1994 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 1 May | 5 May | 27 April | 8 days earlier | -1.2 days per decade |
| First autumn frost | 15 October | 10 October | 26 October | 16 days later | +1.5 days per decade |
| Growing days | 167 days | 156 days | 184 days | 28 days more | +2.7 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
127 years, 1899 to 2025A day with at least 51.5 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 164.7 mm (6.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 51.5 mm (2.0 in) | |
| 5 years | 70.8 mm (2.8 in) | |
| 10 years | 87.2 mm (3.4 in) | |
| 25 years | 112.9 mm (4.4 in) | |
| 50 years | 136.6 mm (5.4 in) | |
| 100 years | 164.7 mm (6.5 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 127 years of values from 1899 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: 229.1 mm (9.0 in) in 1969; 176.0 mm (6.9 in) in 1966; 137.7 mm (5.4 in) in 2006.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Norwalk Wwtp had a mean temperature of 10.8 C (51.5 F) and 1,020.7 mm (40.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Landisville 2 NW (United States, 537 km away), Franklin (United States, 239 km away) and Allentown Lehigh Vly Intl AP (United States, 606 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Landisville 2 NW | United States | 537 km (334 mi) | 10.9 C (51.6 F) | 1,034.5 mm (40.7 in) | 0.73 |
| Franklin | United States | 239 km (149 mi) | 10.8 C (51.5 F) | 975.1 mm (38.4 in) | 0.73 |
| Allentown Lehigh Vly Intl AP | United States | 606 km (377 mi) | 10.6 C (51.1 F) | 1,106.1 mm (43.5 in) | 0.75 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).