Pontiac Wwtp Weather Records (USC00206658)
Record envelope, standing records and threshold days for Pontiac Wwtp (USC00206658), Michigan, United States, with 133 years of record.
Key Facts for Pontiac Wwtp
- Pontiac Wwtp (USC00206658) is a weather station in Michigan, United States at 42.64 latitude and -83.26 longitude, 271 m (890 ft) above sea level.
- The station reports from 1894 to 2026, 133 years of record.
- 1,464 records set at Pontiac Wwtp still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Pontiac Wwtp set a daily record high maximum temperature of 30.0 C (86.0 F) on 14 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Michigan, United States, 42.64 latitude, -83.26 longitude.
- Elevation: 271 m (890 ft).
- Period of record: 1894 to 2026, 133 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
6 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 18.9 C (66.0 F) | -29.4 C (-20.9 F) | 14.4 C (57.9 F) | -22.2 C (-8.0 F) |
| Feb | 22.2 C (72.0 F) | -30.0 C (-22.0 F) | 13.3 C (55.9 F) | -16.7 C (1.9 F) |
| Mar | 28.9 C (84.0 F) | -22.2 C (-8.0 F) | 22.8 C (73.0 F) | -11.1 C (12.0 F) |
| Apr | 31.7 C (89.1 F) | -14.4 C (6.1 F) | 27.2 C (81.0 F) | -5.6 C (21.9 F) |
| May | 35.0 C (95.0 F) | -5.0 C (23.0 F) | 31.1 C (88.0 F) | 1.1 C (34.0 F) |
| Jun | 38.9 C (102.0 F) | 1.1 C (34.0 F) | 31.7 C (89.1 F) | 9.4 C (48.9 F) |
| Jul | 40.0 C (104.0 F) | 5.0 C (41.0 F) | 35.6 C (96.1 F) | 11.1 C (52.0 F) |
| Aug | 38.9 C (102.0 F) | 3.3 C (37.9 F) | 32.2 C (90.0 F) | 11.1 C (52.0 F) |
| Sep | 36.7 C (98.1 F) | -1.7 C (28.9 F) | 35.6 C (96.1 F) | 5.0 C (41.0 F) |
| Oct | 32.2 C (90.0 F) | -9.4 C (15.1 F) | 30.0 C (86.0 F) | 4.4 C (39.9 F) |
| Nov | 26.1 C (79.0 F) | -16.7 C (1.9 F) | n/a | n/a |
| Dec | 17.8 C (64.0 F) | -24.4 C (-11.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1894 | 12 |
| 1895 | 37 |
| 1896 | 30 |
| 1897 | 12 |
| 1901 | 4 |
| 1902 | 1 |
| 1905 | 4 |
| 1906 | 23 |
| 1907 | 4 |
| 1908 | 22 |
| 1909 | 24 |
| 1910 | 9 |
| 1911 | 16 |
| 1912 | 22 |
| 1913 | 13 |
| 1914 | 17 |
| 1915 | 11 |
| 1916 | 26 |
| 1917 | 27 |
| 1918 | 25 |
| 1919 | 7 |
| 1920 | 25 |
| 1921 | 13 |
| 1922 | 5 |
| 1923 | 14 |
| 1924 | 11 |
| 1925 | 27 |
| 1926 | 14 |
| 1927 | 14 |
| 1928 | 17 |
| 1929 | 16 |
| 1930 | 30 |
| 1931 | 16 |
| 1932 | 14 |
| 1933 | 19 |
| 1934 | 21 |
| 1935 | 13 |
| 1936 | 24 |
| 1937 | 12 |
| 1938 | 6 |
| 1939 | 6 |
| 1940 | 8 |
| 1941 | 14 |
| 1942 | 13 |
| 1943 | 8 |
| 1944 | 12 |
| 1945 | 16 |
| 1946 | 11 |
| 1947 | 14 |
| 1948 | 8 |
| 1949 | 14 |
| 1950 | 22 |
| 1951 | 14 |
| 1952 | 8 |
| 1953 | 20 |
| 1954 | 9 |
| 1955 | 7 |
| 1956 | 8 |
| 1957 | 5 |
| 1958 | 7 |
| 1959 | 10 |
| 1960 | 8 |
| 1961 | 3 |
| 1962 | 13 |
| 1963 | 16 |
| 1964 | 12 |
| 1965 | 14 |
| 1966 | 11 |
| 1967 | 8 |
| 1968 | 9 |
| 1969 | 5 |
| 1970 | 3 |
| 1971 | 10 |
| 1972 | 15 |
| 1973 | 9 |
| 1974 | 10 |
| 1975 | 17 |
| 1976 | 13 |
| 1977 | 15 |
| 1978 | 6 |
| 1979 | 13 |
| 1980 | 4 |
| 1981 | 11 |
| 1982 | 19 |
| 1983 | 10 |
| 1984 | 15 |
| 1985 | 8 |
| 1986 | 13 |
| 1987 | 11 |
| 1988 | 23 |
| 1989 | 11 |
| 1990 | 15 |
| 1991 | 27 |
| 1992 | 12 |
| 1993 | 4 |
| 1994 | 17 |
| 1995 | 2 |
| 1996 | 7 |
| 1997 | 5 |
| 1998 | 6 |
| 2012 | 19 |
| 2013 | 10 |
| 2014 | 8 |
| 2015 | 11 |
| 2016 | 10 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 10 |
| 2020 | 9 |
| 2021 | 10 |
| 2022 | 5 |
| 2023 | 9 |
| 2024 | 13 |
| 2025 | 9 |
| 2026 | 8 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1934-07-24 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
| 1968-06-26 | Record daily precipitation | Record daily precipitation 119.4 mm (4.7 in) |
| 1974-12-02 | Record daily snowfall | Record daily snowfall 45.7 cm (18.0 in) |
| 1981-10-01 | Record daily precipitation | Record daily precipitation 120.7 mm (4.8 in) |
| 1982-01-17 | Record low maximum temperature | Record low maximum temperature -20.0 C (-4.0 F) |
Wettest Day of Each Month
Oct: 120.7 mm (4.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 35.6 mm (1.4 in) | 29 January 1909 |
| Feb | 89.2 mm (3.5 in) | 12 February 1938 |
| Mar | 47.2 mm (1.9 in) | 5 March 1974 |
| Apr | 101.6 mm (4.0 in) | 25 April 1914 |
| May | 64.8 mm (2.6 in) | 10 May 1948 |
| Jun | 119.4 mm (4.7 in) | 26 June 1968 |
| Jul | 95.0 mm (3.7 in) | 28 July 2011 |
| Aug | 71.9 mm (2.8 in) | 10 August 1896 |
| Sep | 71.9 mm (2.8 in) | 14 September 2008 |
| Oct | 120.7 mm (4.8 in) | 1 October 1981 |
| Nov | 57.2 mm (2.3 in) | 14 November 1997 |
| Dec | 59.4 mm (2.3 in) | 25 December 1965 |
Period of Record Coverage
1894 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1894 | 201 | 55% | No |
| 1895 | 354 | 97% | Yes |
| 1896 | 356 | 97% | Yes |
| 1897 | 222 | 61% | No |
| 1901 | 84 | 23% | No |
| 1902 | 101 | 28% | No |
| 1905 | 121 | 33% | No |
| 1906 | 319 | 87% | No |
| 1907 | 58 | 16% | No |
| 1908 | 333 | 91% | Yes |
| 1909 | 333 | 91% | Yes |
| 1910 | 357 | 98% | Yes |
| 1911 | 355 | 97% | Yes |
| 1912 | 363 | 99% | Yes |
| 1913 | 361 | 99% | Yes |
| 1914 | 363 | 99% | Yes |
| 1915 | 362 | 99% | Yes |
| 1916 | 362 | 99% | Yes |
| 1917 | 361 | 99% | Yes |
| 1918 | 361 | 99% | Yes |
| 1919 | 353 | 97% | Yes |
| 1920 | 358 | 98% | Yes |
| 1921 | 343 | 94% | Yes |
| 1922 | 358 | 98% | Yes |
| 1923 | 331 | 91% | Yes |
| 1924 | 364 | 99% | Yes |
| 1925 | 359 | 98% | Yes |
| 1926 | 275 | 75% | No |
| 1927 | 364 | 100% | Yes |
| 1928 | 363 | 99% | Yes |
| 1929 | 364 | 100% | Yes |
| 1930 | 362 | 99% | Yes |
| 1931 | 362 | 99% | Yes |
| 1932 | 362 | 99% | Yes |
| 1933 | 363 | 99% | Yes |
| 1934 | 323 | 88% | No |
| 1935 | 313 | 86% | No |
| 1936 | 358 | 98% | Yes |
| 1937 | 358 | 98% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 362 | 99% | Yes |
| 1940 | 364 | 99% | Yes |
| 1941 | 364 | 100% | Yes |
| 1942 | 362 | 99% | Yes |
| 1943 | 360 | 99% | Yes |
| 1944 | 364 | 99% | Yes |
| 1945 | 362 | 99% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 362 | 99% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 354 | 97% | Yes |
| 1952 | 360 | 98% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 362 | 99% | Yes |
| 1956 | 363 | 99% | Yes |
| 1957 | 360 | 99% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 364 | 99% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 339 | 93% | Yes |
| 1971 | 339 | 93% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 336 | 92% | Yes |
| 1981 | 362 | 99% | Yes |
| 1982 | 356 | 98% | Yes |
| 1983 | 351 | 96% | Yes |
| 1984 | 360 | 98% | Yes |
| 1985 | 361 | 99% | Yes |
| 1986 | 358 | 98% | Yes |
| 1987 | 358 | 98% | Yes |
| 1988 | 326 | 89% | No |
| 1989 | 332 | 91% | Yes |
| 1990 | 349 | 96% | Yes |
| 1991 | 352 | 96% | Yes |
| 1992 | 347 | 95% | Yes |
| 1993 | 347 | 95% | Yes |
| 1994 | 340 | 93% | Yes |
| 1995 | 346 | 95% | Yes |
| 1996 | 316 | 86% | No |
| 1997 | 344 | 94% | Yes |
| 1998 | 236 | 65% | No |
| 1999 | 31 | 8% | No |
| 2011 | 91 | 25% | No |
| 2012 | 353 | 96% | Yes |
| 2013 | 343 | 94% | Yes |
| 2014 | 299 | 82% | No |
| 2015 | 222 | 61% | No |
| 2016 | 192 | 52% | No |
| 2017 | 301 | 82% | No |
| 2018 | 365 | 100% | Yes |
| 2019 | 363 | 99% | Yes |
| 2020 | 364 | 99% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 363 | 99% | Yes |
| 2023 | 362 | 99% | Yes |
| 2024 | 358 | 98% | Yes |
| 2025 | 357 | 98% | Yes |
| 2026 | 279 | 76% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 14 October 2026 | Pontiac Wwtp, US | daily high max (Provisional) | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 117 years | 41 of 100 (Notable) |
| 2 October 2026 | Pontiac Wwtp, US | daily rain (Provisional) | 34.3 mm (1.4 in) | 6.4 mm (0.25 in) | 8 years | 18 of 100 (Routine) |
| 3 September 2026 | Pontiac Wwtp, US | daily rain (Provisional) | 25.1 mm (1.0 in) | 6.8 mm (0.27 in) | 32 years | 25 of 100 (Routine) |
| 2 September 2026 | Pontiac Wwtp, US | daily high min (Provisional) | 23.3 C (73.9 F) | 1.1 C (2.0 F) | 72 years | 33 of 100 (Routine) |
| 2 July 2026 | Pontiac Wwtp, US | daily high min | 26.1 C (79.0 F) | 1.7 C (3.1 F) | 115 years | 44 of 100 (Notable) |
| 10 June 2026 | Pontiac Wwtp, US | daily high min | 22.2 C (72.0 F) | 1.6 C (2.9 F) | 115 years | 43 of 100 (Notable) |
| 16 April 2026 | Pontiac Wwtp, US | daily high min | 15.6 C (60.1 F) | 1.2 C (2.2 F) | 49 years | 26 of 100 (Routine) |
| 15 April 2026 | Pontiac Wwtp, US | daily high min | 15.6 C (60.1 F) | 1.2 C (2.2 F) | 84 years | 37 of 100 (Notable) |
| 11 March 2026 | Pontiac Wwtp, US | daily high max | 20.6 C (69.1 F) | 0.6 C (1.1 F) | 48 years | 24 of 100 (Routine) |
| 10 March 2026 | Pontiac Wwtp, US | daily high max | 21.7 C (71.1 F) | 3.4 C (6.1 F) | 100 years | 45 of 100 (Notable) |
| 10 March 2026 | Pontiac Wwtp, US | daily high min (Tie) | 6.7 C (44.1 F) | tie | 5 years | 2 of 100 (Routine) |
| 17 February 2026 | Pontiac Wwtp, US | daily high max | 12.8 C (55.0 F) | 0.6 C (1.1 F) | 115 years | 41 of 100 (Notable) |
| 10 January 2026 | Pontiac Wwtp, US | daily high max | 14.4 C (57.9 F) | 2.2 C (4.0 F) | 76 years | 35 of 100 (Notable) |
| 9 January 2026 | Pontiac Wwtp, US | daily high max (Tie) | 14.4 C (57.9 F) | tie | 60 years | 7 of 100 (Routine) |
| 29 December 2025 | Pontiac Wwtp, US | daily rain | 33.3 mm (1.3 in) | 8.7 mm (0.34 in) | 10 years | 26 of 100 (Routine) |
| 10 December 2025 | Pontiac Wwtp, US | daily snowfall | 12.7 cm (5.0 in) | 4.3 cm (1.7 in) | 31 years | 29 of 100 (Routine) |
| 30 November 2025 | Pontiac Wwtp, US | daily snowfall | 12.7 cm (5.0 in) | 5.1 cm (2.0 in) | 84 years | 49 of 100 (Notable) |
| 19 October 2025 | Pontiac Wwtp, US | daily high min | 16.7 C (62.1 F) | 1.7 C (3.1 F) | 78 years | 36 of 100 (Notable) |
| 5 October 2025 | Pontiac Wwtp, US | daily high max (Tie) | 31.1 C (88.0 F) | tie | 74 years | 8 of 100 (Routine) |
| 10 August 2025 | Pontiac Wwtp, US | daily high min (Tie) | 21.7 C (71.1 F) | tie | 76 years | 8 of 100 (Routine) |
Climate Trend
93 complete years, 1895 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1895 | 7.5 C | -1.58 C |
| 1896 | 8.2 C | -0.86 C |
| 1910 | 8.8 C | -0.26 C |
| 1911 | 9.6 C | +0.55 C |
| 1912 | 7.3 C | -1.75 C |
| 1913 | 8.9 C | -0.11 C |
| 1914 | 7.9 C | -1.16 C |
| 1915 | 8.1 C | -0.96 C |
| 1916 | 8.5 C | -0.53 C |
| 1917 | 6.3 C | -2.75 C |
| 1918 | 8.5 C | -0.57 C |
| 1920 | 7.8 C | -1.23 C |
| 1921 | 10.4 C | +1.38 C |
| 1922 | 9.2 C | +0.16 C |
| 1924 | 7.3 C | -1.79 C |
| 1925 | 8.4 C | -0.64 C |
| 1927 | 8.5 C | -0.55 C |
| 1928 | 8.1 C | -0.90 C |
| 1929 | 7.8 C | -1.29 C |
| 1930 | 8.9 C | -0.19 C |
| 1931 | 10.2 C | +1.13 C |
| 1932 | 8.8 C | -0.29 C |
| 1933 | 9.3 C | +0.27 C |
| 1934 | 8.8 C | -0.21 C |
| 1935 | 8.1 C | -0.96 C |
| 1936 | 8.1 C | -0.93 C |
| 1937 | 8.2 C | -0.86 C |
| 1938 | 9.6 C | +0.55 C |
| 1939 | 9.0 C | -0.04 C |
| 1940 | 8.1 C | -0.93 C |
| 1941 | 10.1 C | +1.07 C |
| 1942 | 9.1 C | +0.01 C |
| 1943 | 8.4 C | -0.68 C |
| 1944 | 9.5 C | +0.42 C |
| 1945 | 8.7 C | -0.36 C |
| 1946 | 9.9 C | +0.85 C |
| 1947 | 8.7 C | -0.38 C |
| 1948 | 9.0 C | -0.08 C |
| 1949 | 10.0 C | +0.98 C |
| 1950 | 8.4 C | -0.63 C |
| 1951 | 8.8 C | -0.26 C |
| 1952 | 9.9 C | +0.87 C |
| 1953 | 10.4 C | +1.34 C |
| 1954 | 9.6 C | +0.58 C |
| 1955 | 10.1 C | +1.06 C |
| 1956 | 9.1 C | +0.02 C |
| 1957 | 9.1 C | +0.05 C |
| 1958 | 8.7 C | -0.34 C |
| 1959 | 9.5 C | +0.46 C |
| 1960 | 9.0 C | 0.00 C |
| 1961 | 9.5 C | +0.47 C |
| 1962 | 8.9 C | -0.11 C |
| 1963 | 8.8 C | -0.21 C |
| 1964 | 9.9 C | +0.87 C |
| 1965 | 9.0 C | -0.02 C |
| 1966 | 8.7 C | -0.38 C |
| 1967 | 8.3 C | -0.78 C |
| 1968 | 8.7 C | -0.39 C |
| 1969 | 8.8 C | -0.29 C |
| 1972 | 8.0 C | -1.02 C |
| 1973 | 10.0 C | +0.98 C |
| 1974 | 8.8 C | -0.25 C |
| 1975 | 9.4 C | +0.32 C |
| 1976 | 8.4 C | -0.68 C |
| 1977 | 9.2 C | +0.15 C |
| 1978 | 8.5 C | -0.54 C |
| 1979 | 8.7 C | -0.39 C |
| 1981 | 9.2 C | +0.11 C |
| 1982 | 9.0 C | -0.06 C |
| 1983 | 9.6 C | +0.60 C |
| 1984 | 9.3 C | +0.27 C |
| 1985 | 9.1 C | +0.03 C |
| 1986 | 9.5 C | +0.48 C |
| 1987 | 10.6 C | +1.59 C |
| 1988 | 9.6 C | +0.54 C |
| 1989 | 8.7 C | -0.33 C |
| 1990 | 10.1 C | +1.07 C |
| 1991 | 10.3 C | +1.22 C |
| 1992 | 8.6 C | -0.45 C |
| 1993 | 8.8 C | -0.28 C |
| 1994 | 9.0 C | 0.00 C |
| 1995 | 9.0 C | -0.07 C |
| 1997 | 8.5 C | -0.50 C |
| 2012 | 11.0 C | +2.00 C |
| 2013 | 8.9 C | -0.15 C |
| 2018 | 9.4 C | +0.38 C |
| 2019 | 9.2 C | +0.18 C |
| 2020 | 10.3 C | +1.24 C |
| 2021 | 10.4 C | +1.37 C |
| 2022 | 9.5 C | +0.43 C |
| 2023 | 10.5 C | +1.50 C |
| 2024 | 11.5 C | +2.49 C |
| 2025 | 10.0 C | +0.95 C |
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1895 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.3) per decade. The slope is a straight line fitted to 93 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.1 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.3) per decade | 1895 to 2025 | 93 | Rise |
| Mean daily maximum | 0.1 C (0.1 to 0.2) per decade | 0.2 F (0.1 to 0.3) per decade | 1895 to 2025 | 93 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1895 to 2025 | 93 | 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) | 40.0 C (104.0 F) | 1934 | 34.4 C (93.9 F) | 117 |
| Coldest night (TNn) | -30.0 C (-22.0 F) | 1918 | -21.7 C (-7.1 F) | 117 |
| Wettest day (Rx1day) | 120.7 mm (4.8 in) | 1981 | 48.4 mm (1.9 in) | 126 |
| Wettest five days (Rx5day) | 154.0 mm (6.1 in) | 1968 | 74.3 mm (2.9 in) | 126 |
| Longest dry spell (CDD) | 45 days | 1969 | 19 days | 126 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1894 | 36.7 C (98.1 F) |
| 1895 | 33.9 C (93.0 F) |
| 1896 | 32.2 C (90.0 F) |
| 1897 | 37.2 C (99.0 F) |
| 1901 | 25.0 C (77.0 F) |
| 1902 | 28.9 C (84.0 F) |
| 1905 | 32.2 C (90.0 F) |
| 1906 | 35.6 C (96.1 F) |
| 1907 | 16.7 C (62.1 F) |
| 1908 | 38.3 C (100.9 F) |
| 1909 | 35.0 C (95.0 F) |
| 1910 | 36.1 C (97.0 F) |
| 1911 | 39.4 C (102.9 F) |
| 1912 | 32.2 C (90.0 F) |
| 1913 | 35.6 C (96.1 F) |
| 1914 | 33.3 C (91.9 F) |
| 1915 | 31.7 C (89.1 F) |
| 1916 | 37.8 C (100.0 F) |
| 1917 | 35.0 C (95.0 F) |
| 1918 | 38.9 C (102.0 F) |
| 1919 | 33.9 C (93.0 F) |
| 1920 | 34.4 C (93.9 F) |
| 1921 | 36.1 C (97.0 F) |
| 1922 | 37.8 C (100.0 F) |
| 1923 | 34.4 C (93.9 F) |
| 1924 | 32.8 C (91.0 F) |
| 1925 | 35.6 C (96.1 F) |
| 1926 | 35.6 C (96.1 F) |
| 1927 | 33.3 C (91.9 F) |
| 1928 | 32.2 C (90.0 F) |
| 1929 | 34.4 C (93.9 F) |
| 1930 | 38.9 C (102.0 F) |
| 1931 | 37.8 C (100.0 F) |
| 1932 | 33.3 C (91.9 F) |
| 1933 | 38.3 C (100.9 F) |
| 1934 | 40.0 C (104.0 F) |
| 1935 | 35.6 C (96.1 F) |
| 1936 | 40.0 C (104.0 F) |
| 1937 | 34.4 C (93.9 F) |
| 1938 | 33.3 C (91.9 F) |
| 1939 | 36.1 C (97.0 F) |
| 1940 | 36.7 C (98.1 F) |
| 1941 | 36.7 C (98.1 F) |
| 1942 | 35.6 C (96.1 F) |
| 1943 | 33.3 C (91.9 F) |
| 1944 | 37.2 C (99.0 F) |
| 1945 | 33.3 C (91.9 F) |
| 1946 | 36.7 C (98.1 F) |
| 1947 | 35.6 C (96.1 F) |
| 1948 | 37.2 C (99.0 F) |
| 1949 | 35.0 C (95.0 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 34.4 C (93.9 F) |
| 1952 | 36.7 C (98.1 F) |
| 1953 | 36.7 C (98.1 F) |
| 1954 | 36.7 C (98.1 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 35.0 C (95.0 F) |
| 1957 | 33.3 C (91.9 F) |
| 1958 | 33.3 C (91.9 F) |
| 1959 | 33.3 C (91.9 F) |
| 1960 | 33.9 C (93.0 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 35.0 C (95.0 F) |
| 1964 | 35.0 C (95.0 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 36.1 C (97.0 F) |
| 1967 | 32.8 C (91.0 F) |
| 1968 | 33.3 C (91.9 F) |
| 1969 | 32.8 C (91.0 F) |
| 1970 | 33.9 C (93.0 F) |
| 1971 | 37.8 C (100.0 F) |
| 1972 | 33.3 C (91.9 F) |
| 1973 | 34.4 C (93.9 F) |
| 1974 | 34.4 C (93.9 F) |
| 1975 | 36.1 C (97.0 F) |
| 1976 | 35.0 C (95.0 F) |
| 1977 | 36.1 C (97.0 F) |
| 1978 | 35.6 C (96.1 F) |
| 1979 | 32.8 C (91.0 F) |
| 1980 | 33.9 C (93.0 F) |
| 1981 | 34.4 C (93.9 F) |
| 1982 | 32.2 C (90.0 F) |
| 1983 | 35.0 C (95.0 F) |
| 1984 | 34.4 C (93.9 F) |
| 1985 | 33.3 C (91.9 F) |
| 1986 | 33.9 C (93.0 F) |
| 1987 | 35.6 C (96.1 F) |
| 1988 | 40.0 C (104.0 F) |
| 1989 | 34.4 C (93.9 F) |
| 1990 | 36.1 C (97.0 F) |
| 1991 | 34.4 C (93.9 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 36.1 C (97.0 F) |
| 1994 | 34.4 C (93.9 F) |
| 1995 | 34.4 C (93.9 F) |
| 1996 | 33.9 C (93.0 F) |
| 1997 | 33.9 C (93.0 F) |
| 1998 | 35.0 C (95.0 F) |
| 1999 | 12.2 C (54.0 F) |
| 2001 | n/a |
| 2002 | n/a |
| 2003 | n/a |
| 2004 | n/a |
| 2005 | n/a |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
| 2011 | 26.7 C (80.1 F) |
| 2012 | 37.2 C (99.0 F) |
| 2013 | 34.4 C (93.9 F) |
| 2014 | 32.2 C (90.0 F) |
| 2015 | 32.8 C (91.0 F) |
| 2016 | 33.9 C (93.0 F) |
| 2017 | 33.3 C (91.9 F) |
| 2018 | 33.9 C (93.0 F) |
| 2019 | 35.0 C (95.0 F) |
| 2020 | 35.6 C (96.1 F) |
| 2021 | 32.8 C (91.0 F) |
| 2022 | 35.6 C (96.1 F) |
| 2023 | 33.3 C (91.9 F) |
| 2024 | 33.9 C (93.0 F) |
| 2025 | 35.6 C (96.1 F) |
| 2026 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1894 | -20.6 C (-5.1 F) |
| 1895 | -27.8 C (-18.0 F) |
| 1896 | -22.2 C (-8.0 F) |
| 1897 | -25.0 C (-13.0 F) |
| 1901 | -22.2 C (-8.0 F) |
| 1902 | -22.2 C (-8.0 F) |
| 1905 | -12.2 C (10.0 F) |
| 1906 | -22.2 C (-8.0 F) |
| 1907 | -25.6 C (-14.1 F) |
| 1908 | -22.8 C (-9.0 F) |
| 1909 | -21.1 C (-6.0 F) |
| 1910 | -20.6 C (-5.1 F) |
| 1911 | -18.3 C (-0.9 F) |
| 1912 | -28.9 C (-20.0 F) |
| 1913 | -21.7 C (-7.1 F) |
| 1914 | -26.1 C (-15.0 F) |
| 1915 | -23.9 C (-11.0 F) |
| 1916 | -21.7 C (-7.1 F) |
| 1917 | -29.4 C (-20.9 F) |
| 1918 | -30.0 C (-22.0 F) |
| 1919 | -20.0 C (-4.0 F) |
| 1920 | -25.0 C (-13.0 F) |
| 1921 | -16.1 C (3.0 F) |
| 1922 | -22.2 C (-8.0 F) |
| 1923 | -23.3 C (-9.9 F) |
| 1924 | -24.4 C (-11.9 F) |
| 1925 | -23.9 C (-11.0 F) |
| 1926 | -22.8 C (-9.0 F) |
| 1927 | -25.6 C (-14.1 F) |
| 1928 | -22.2 C (-8.0 F) |
| 1929 | -28.9 C (-20.0 F) |
| 1930 | -23.3 C (-9.9 F) |
| 1931 | -18.3 C (-0.9 F) |
| 1932 | -21.1 C (-6.0 F) |
| 1933 | -26.1 C (-15.0 F) |
| 1934 | -28.9 C (-20.0 F) |
| 1935 | -21.1 C (-6.0 F) |
| 1936 | -25.6 C (-14.1 F) |
| 1937 | -17.8 C (0.0 F) |
| 1938 | -21.7 C (-7.1 F) |
| 1939 | -18.9 C (-2.0 F) |
| 1940 | -24.4 C (-11.9 F) |
| 1941 | -15.0 C (5.0 F) |
| 1942 | -23.3 C (-9.9 F) |
| 1943 | -22.2 C (-8.0 F) |
| 1944 | -21.1 C (-6.0 F) |
| 1945 | -21.1 C (-6.0 F) |
| 1946 | -18.9 C (-2.0 F) |
| 1947 | -20.0 C (-4.0 F) |
| 1948 | -23.9 C (-11.0 F) |
| 1949 | -18.3 C (-0.9 F) |
| 1950 | -20.6 C (-5.1 F) |
| 1951 | -22.8 C (-9.0 F) |
| 1952 | -16.7 C (1.9 F) |
| 1953 | -15.6 C (3.9 F) |
| 1954 | -17.8 C (0.0 F) |
| 1955 | -18.9 C (-2.0 F) |
| 1956 | -16.7 C (1.9 F) |
| 1957 | -21.1 C (-6.0 F) |
| 1958 | -23.3 C (-9.9 F) |
| 1959 | -21.1 C (-6.0 F) |
| 1960 | -21.7 C (-7.1 F) |
| 1961 | -22.2 C (-8.0 F) |
| 1962 | -22.8 C (-9.0 F) |
| 1963 | -26.1 C (-15.0 F) |
| 1964 | -19.4 C (-2.9 F) |
| 1965 | -20.0 C (-4.0 F) |
| 1966 | -22.8 C (-9.0 F) |
| 1967 | -21.7 C (-7.1 F) |
| 1968 | -22.8 C (-9.0 F) |
| 1969 | -20.6 C (-5.1 F) |
| 1970 | -22.2 C (-8.0 F) |
| 1971 | -23.3 C (-9.9 F) |
| 1972 | -25.0 C (-13.0 F) |
| 1973 | -21.7 C (-7.1 F) |
| 1974 | -20.6 C (-5.1 F) |
| 1975 | -18.9 C (-2.0 F) |
| 1976 | -24.4 C (-11.9 F) |
| 1977 | -23.3 C (-9.9 F) |
| 1978 | -21.1 C (-6.0 F) |
| 1979 | -23.3 C (-9.9 F) |
| 1980 | -20.6 C (-5.1 F) |
| 1981 | -24.4 C (-11.9 F) |
| 1982 | -26.1 C (-15.0 F) |
| 1983 | -23.9 C (-11.0 F) |
| 1984 | -26.1 C (-15.0 F) |
| 1985 | -26.1 C (-15.0 F) |
| 1986 | -22.2 C (-8.0 F) |
| 1987 | -21.7 C (-7.1 F) |
| 1988 | -22.2 C (-8.0 F) |
| 1989 | -21.1 C (-6.0 F) |
| 1990 | -18.3 C (-0.9 F) |
| 1991 | -18.3 C (-0.9 F) |
| 1992 | -19.4 C (-2.9 F) |
| 1993 | -19.4 C (-2.9 F) |
| 1994 | -29.4 C (-20.9 F) |
| 1995 | -22.2 C (-8.0 F) |
| 1996 | -23.9 C (-11.0 F) |
| 1997 | -22.2 C (-8.0 F) |
| 1998 | -13.9 C (7.0 F) |
| 1999 | -21.7 C (-7.1 F) |
| 2001 | n/a |
| 2002 | n/a |
| 2003 | n/a |
| 2004 | n/a |
| 2005 | n/a |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
| 2011 | -9.4 C (15.1 F) |
| 2012 | -16.7 C (1.9 F) |
| 2013 | -18.9 C (-2.0 F) |
| 2014 | -24.4 C (-11.9 F) |
| 2015 | -26.7 C (-16.1 F) |
| 2016 | -17.8 C (0.0 F) |
| 2017 | -19.4 C (-2.9 F) |
| 2018 | -21.1 C (-6.0 F) |
| 2019 | -25.0 C (-13.0 F) |
| 2020 | -17.2 C (1.0 F) |
| 2021 | -19.4 C (-2.9 F) |
| 2022 | -18.3 C (-0.9 F) |
| 2023 | -16.1 C (3.0 F) |
| 2024 | -20.6 C (-5.1 F) |
| 2025 | -20.6 C (-5.1 F) |
| 2026 | -22.2 C (-8.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1894 | 56.6 mm (2.2 in) |
| 1895 | 34.8 mm (1.4 in) |
| 1896 | 84.8 mm (3.3 in) |
| 1897 | 36.1 mm (1.4 in) |
| 1901 | 38.1 mm (1.5 in) |
| 1902 | 17.8 mm (0.7 in) |
| 1905 | 50.8 mm (2.0 in) |
| 1906 | 44.5 mm (1.8 in) |
| 1907 | 15.7 mm (0.6 in) |
| 1908 | 48.8 mm (1.9 in) |
| 1909 | 72.4 mm (2.9 in) |
| 1910 | 26.2 mm (1.0 in) |
| 1911 | 35.6 mm (1.4 in) |
| 1912 | 43.7 mm (1.7 in) |
| 1913 | 68.1 mm (2.7 in) |
| 1914 | 101.6 mm (4.0 in) |
| 1915 | 45.2 mm (1.8 in) |
| 1916 | 40.6 mm (1.6 in) |
| 1917 | 37.1 mm (1.5 in) |
| 1918 | 42.9 mm (1.7 in) |
| 1919 | 42.7 mm (1.7 in) |
| 1920 | 41.7 mm (1.6 in) |
| 1921 | 33.8 mm (1.3 in) |
| 1922 | 47.0 mm (1.9 in) |
| 1923 | 66.3 mm (2.6 in) |
| 1924 | 51.6 mm (2.0 in) |
| 1925 | 33.0 mm (1.3 in) |
| 1926 | 64.5 mm (2.5 in) |
| 1927 | 54.4 mm (2.1 in) |
| 1928 | 38.1 mm (1.5 in) |
| 1929 | 50.8 mm (2.0 in) |
| 1930 | 27.4 mm (1.1 in) |
| 1931 | 25.4 mm (1.0 in) |
| 1932 | 58.4 mm (2.3 in) |
| 1933 | 58.4 mm (2.3 in) |
| 1934 | 33.5 mm (1.3 in) |
| 1935 | 45.2 mm (1.8 in) |
| 1936 | 48.0 mm (1.9 in) |
| 1937 | 62.2 mm (2.4 in) |
| 1938 | 89.2 mm (3.5 in) |
| 1939 | 40.6 mm (1.6 in) |
| 1940 | 50.8 mm (2.0 in) |
| 1941 | 61.2 mm (2.4 in) |
| 1942 | 49.3 mm (1.9 in) |
| 1943 | 49.3 mm (1.9 in) |
| 1944 | 51.3 mm (2.0 in) |
| 1945 | 44.2 mm (1.7 in) |
| 1946 | 44.7 mm (1.8 in) |
| 1947 | 64.0 mm (2.5 in) |
| 1948 | 64.8 mm (2.6 in) |
| 1949 | 70.1 mm (2.8 in) |
| 1950 | 64.0 mm (2.5 in) |
| 1951 | 60.7 mm (2.4 in) |
| 1952 | 30.2 mm (1.2 in) |
| 1953 | 29.5 mm (1.2 in) |
| 1954 | 94.5 mm (3.7 in) |
| 1955 | 43.7 mm (1.7 in) |
| 1956 | 89.4 mm (3.5 in) |
| 1957 | 65.5 mm (2.6 in) |
| 1958 | 74.9 mm (2.9 in) |
| 1959 | 77.2 mm (3.0 in) |
| 1960 | 30.5 mm (1.2 in) |
| 1961 | 52.3 mm (2.1 in) |
| 1962 | 35.6 mm (1.4 in) |
| 1963 | 52.8 mm (2.1 in) |
| 1964 | 25.9 mm (1.0 in) |
| 1965 | 59.4 mm (2.3 in) |
| 1966 | 38.1 mm (1.5 in) |
| 1967 | 53.8 mm (2.1 in) |
| 1968 | 119.4 mm (4.7 in) |
| 1969 | 73.9 mm (2.9 in) |
| 1970 | 33.8 mm (1.3 in) |
| 1971 | 36.6 mm (1.4 in) |
| 1972 | 51.8 mm (2.0 in) |
| 1973 | 37.3 mm (1.5 in) |
| 1974 | 47.2 mm (1.9 in) |
| 1975 | 62.2 mm (2.4 in) |
| 1976 | 36.6 mm (1.4 in) |
| 1977 | 29.7 mm (1.2 in) |
| 1978 | 22.4 mm (0.9 in) |
| 1979 | 34.8 mm (1.4 in) |
| 1980 | 49.8 mm (2.0 in) |
| 1981 | 120.7 mm (4.8 in) |
| 1982 | 41.9 mm (1.6 in) |
| 1983 | 39.4 mm (1.6 in) |
| 1984 | 40.6 mm (1.6 in) |
| 1985 | 59.2 mm (2.3 in) |
| 1986 | 84.3 mm (3.3 in) |
| 1987 | 94.0 mm (3.7 in) |
| 1988 | 85.9 mm (3.4 in) |
| 1989 | 49.5 mm (1.9 in) |
| 1990 | 60.5 mm (2.4 in) |
| 1991 | 50.8 mm (2.0 in) |
| 1992 | 51.8 mm (2.0 in) |
| 1993 | 71.1 mm (2.8 in) |
| 1994 | 34.3 mm (1.4 in) |
| 1995 | 39.6 mm (1.6 in) |
| 1996 | 47.2 mm (1.9 in) |
| 1997 | 57.2 mm (2.3 in) |
| 1998 | 28.4 mm (1.1 in) |
| 1999 | n/a |
| 2001 | 9.7 mm (0.38 in) |
| 2002 | 27.7 mm (1.1 in) |
| 2003 | 39.6 mm (1.6 in) |
| 2004 | 55.6 mm (2.2 in) |
| 2005 | 52.6 mm (2.1 in) |
| 2006 | 53.8 mm (2.1 in) |
| 2007 | 45.0 mm (1.8 in) |
| 2008 | 71.9 mm (2.8 in) |
| 2009 | 62.2 mm (2.4 in) |
| 2010 | 43.4 mm (1.7 in) |
| 2011 | 95.0 mm (3.7 in) |
| 2012 | 53.1 mm (2.1 in) |
| 2013 | 77.5 mm (3.1 in) |
| 2014 | 35.6 mm (1.4 in) |
| 2015 | 38.1 mm (1.5 in) |
| 2016 | 41.1 mm (1.6 in) |
| 2017 | 66.0 mm (2.6 in) |
| 2018 | 46.5 mm (1.8 in) |
| 2019 | 40.1 mm (1.6 in) |
| 2020 | 61.0 mm (2.4 in) |
| 2021 | 71.1 mm (2.8 in) |
| 2022 | 36.6 mm (1.4 in) |
| 2023 | 55.9 mm (2.2 in) |
| 2024 | 42.4 mm (1.7 in) |
| 2025 | 42.9 mm (1.7 in) |
| 2026 | 40.9 mm (1.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1894 | 106.9 mm (4.2 in) |
| 1895 | 77.8 mm (3.1 in) |
| 1896 | 101.1 mm (4.0 in) |
| 1897 | 51.6 mm (2.0 in) |
| 1901 | 56.6 mm (2.2 in) |
| 1902 | 27.9 mm (1.1 in) |
| 1905 | 58.5 mm (2.3 in) |
| 1906 | 58.4 mm (2.3 in) |
| 1907 | 62.5 mm (2.5 in) |
| 1908 | 73.7 mm (2.9 in) |
| 1909 | 110.5 mm (4.4 in) |
| 1910 | 54.9 mm (2.2 in) |
| 1911 | 88.2 mm (3.5 in) |
| 1912 | 49.6 mm (2.0 in) |
| 1913 | 76.7 mm (3.0 in) |
| 1914 | 106.2 mm (4.2 in) |
| 1915 | 64.5 mm (2.5 in) |
| 1916 | 52.6 mm (2.1 in) |
| 1917 | 57.7 mm (2.3 in) |
| 1918 | 54.3 mm (2.1 in) |
| 1919 | 67.1 mm (2.6 in) |
| 1920 | 47.3 mm (1.9 in) |
| 1921 | 51.1 mm (2.0 in) |
| 1922 | 77.2 mm (3.0 in) |
| 1923 | 79.5 mm (3.1 in) |
| 1924 | 73.5 mm (2.9 in) |
| 1925 | 73.0 mm (2.9 in) |
| 1926 | 64.5 mm (2.5 in) |
| 1927 | 93.8 mm (3.7 in) |
| 1928 | 44.9 mm (1.8 in) |
| 1929 | 83.0 mm (3.3 in) |
| 1930 | 54.6 mm (2.1 in) |
| 1931 | 47.6 mm (1.9 in) |
| 1932 | 73.4 mm (2.9 in) |
| 1933 | 76.5 mm (3.0 in) |
| 1934 | 48.0 mm (1.9 in) |
| 1935 | 61.3 mm (2.4 in) |
| 1936 | 69.9 mm (2.8 in) |
| 1937 | 94.7 mm (3.7 in) |
| 1938 | 104.9 mm (4.1 in) |
| 1939 | 76.9 mm (3.0 in) |
| 1940 | 107.2 mm (4.2 in) |
| 1941 | 84.3 mm (3.3 in) |
| 1942 | 74.4 mm (2.9 in) |
| 1943 | 77.5 mm (3.1 in) |
| 1944 | 64.1 mm (2.5 in) |
| 1945 | 122.0 mm (4.8 in) |
| 1946 | 109.5 mm (4.3 in) |
| 1947 | 92.7 mm (3.6 in) |
| 1948 | 109.2 mm (4.3 in) |
| 1949 | 70.6 mm (2.8 in) |
| 1950 | 88.4 mm (3.5 in) |
| 1951 | 75.2 mm (3.0 in) |
| 1952 | 55.7 mm (2.2 in) |
| 1953 | 53.3 mm (2.1 in) |
| 1954 | 147.3 mm (5.8 in) |
| 1955 | 67.3 mm (2.6 in) |
| 1956 | 98.6 mm (3.9 in) |
| 1957 | 113.7 mm (4.5 in) |
| 1958 | 104.9 mm (4.1 in) |
| 1959 | 106.4 mm (4.2 in) |
| 1960 | 58.0 mm (2.3 in) |
| 1961 | 56.2 mm (2.2 in) |
| 1962 | 77.5 mm (3.1 in) |
| 1963 | 96.5 mm (3.8 in) |
| 1964 | 45.7 mm (1.8 in) |
| 1965 | 61.9 mm (2.4 in) |
| 1966 | 66.3 mm (2.6 in) |
| 1967 | 111.7 mm (4.4 in) |
| 1968 | 154.0 mm (6.1 in) |
| 1969 | 74.2 mm (2.9 in) |
| 1970 | 57.1 mm (2.2 in) |
| 1971 | 39.9 mm (1.6 in) |
| 1972 | 70.9 mm (2.8 in) |
| 1973 | 60.7 mm (2.4 in) |
| 1974 | 80.9 mm (3.2 in) |
| 1975 | 75.0 mm (3.0 in) |
| 1976 | 62.0 mm (2.4 in) |
| 1977 | 55.8 mm (2.2 in) |
| 1978 | 51.9 mm (2.0 in) |
| 1979 | 65.2 mm (2.6 in) |
| 1980 | 61.8 mm (2.4 in) |
| 1981 | 121.2 mm (4.8 in) |
| 1982 | 74.7 mm (2.9 in) |
| 1983 | 69.8 mm (2.7 in) |
| 1984 | 67.4 mm (2.7 in) |
| 1985 | 104.2 mm (4.1 in) |
| 1986 | 89.4 mm (3.5 in) |
| 1987 | 104.4 mm (4.1 in) |
| 1988 | 98.1 mm (3.9 in) |
| 1989 | 75.2 mm (3.0 in) |
| 1990 | 80.1 mm (3.2 in) |
| 1991 | 72.4 mm (2.9 in) |
| 1992 | 73.9 mm (2.9 in) |
| 1993 | 89.4 mm (3.5 in) |
| 1994 | 81.6 mm (3.2 in) |
| 1995 | 53.1 mm (2.1 in) |
| 1996 | 84.5 mm (3.3 in) |
| 1997 | 140.1 mm (5.5 in) |
| 1998 | 32.7 mm (1.3 in) |
| 1999 | n/a |
| 2001 | 23.1 mm (0.9 in) |
| 2002 | 39.9 mm (1.6 in) |
| 2003 | 70.9 mm (2.8 in) |
| 2004 | 101.9 mm (4.0 in) |
| 2005 | 74.1 mm (2.9 in) |
| 2006 | 71.1 mm (2.8 in) |
| 2007 | 80.3 mm (3.2 in) |
| 2008 | 134.1 mm (5.3 in) |
| 2009 | 84.5 mm (3.3 in) |
| 2010 | 61.4 mm (2.4 in) |
| 2011 | 123.4 mm (4.9 in) |
| 2012 | 85.3 mm (3.4 in) |
| 2013 | 119.0 mm (4.7 in) |
| 2014 | 40.6 mm (1.6 in) |
| 2015 | 76.5 mm (3.0 in) |
| 2016 | 82.2 mm (3.2 in) |
| 2017 | 79.0 mm (3.1 in) |
| 2018 | 58.2 mm (2.3 in) |
| 2019 | 50.8 mm (2.0 in) |
| 2020 | 88.3 mm (3.5 in) |
| 2021 | 124.4 mm (4.9 in) |
| 2022 | 67.3 mm (2.6 in) |
| 2023 | 100.4 mm (4.0 in) |
| 2024 | 92.5 mm (3.6 in) |
| 2025 | 84.3 mm (3.3 in) |
| 2026 | 69.6 mm (2.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1894 | 11 days |
| 1895 | 25 days |
| 1896 | 11 days |
| 1897 | 14 days |
| 1901 | 16 days |
| 1902 | 21 days |
| 1905 | 16 days |
| 1906 | 32 days |
| 1907 | 16 days |
| 1908 | 39 days |
| 1909 | 17 days |
| 1910 | 23 days |
| 1911 | 19 days |
| 1912 | 16 days |
| 1913 | 15 days |
| 1914 | 18 days |
| 1915 | 24 days |
| 1916 | 17 days |
| 1917 | 22 days |
| 1918 | 17 days |
| 1919 | 23 days |
| 1920 | 25 days |
| 1921 | 19 days |
| 1922 | 22 days |
| 1923 | 15 days |
| 1924 | 39 days |
| 1925 | 34 days |
| 1926 | 16 days |
| 1927 | 24 days |
| 1928 | 18 days |
| 1929 | 26 days |
| 1930 | 21 days |
| 1931 | 18 days |
| 1932 | 21 days |
| 1933 | 15 days |
| 1934 | 36 days |
| 1935 | 14 days |
| 1936 | 26 days |
| 1937 | 16 days |
| 1938 | 15 days |
| 1939 | 20 days |
| 1940 | 14 days |
| 1941 | 22 days |
| 1942 | 22 days |
| 1943 | 25 days |
| 1944 | 28 days |
| 1945 | 16 days |
| 1946 | 17 days |
| 1947 | 19 days |
| 1948 | 15 days |
| 1949 | 15 days |
| 1950 | 12 days |
| 1951 | 14 days |
| 1952 | 21 days |
| 1953 | 23 days |
| 1954 | 17 days |
| 1955 | 22 days |
| 1956 | 19 days |
| 1957 | 22 days |
| 1958 | 30 days |
| 1959 | 20 days |
| 1960 | 14 days |
| 1961 | 26 days |
| 1962 | 26 days |
| 1963 | 20 days |
| 1964 | 17 days |
| 1965 | 20 days |
| 1966 | 17 days |
| 1967 | 20 days |
| 1968 | 25 days |
| 1969 | 45 days |
| 1970 | 21 days |
| 1971 | 25 days |
| 1972 | 20 days |
| 1973 | 28 days |
| 1974 | 14 days |
| 1975 | 15 days |
| 1976 | 23 days |
| 1977 | 16 days |
| 1978 | 19 days |
| 1979 | 24 days |
| 1980 | 21 days |
| 1981 | 20 days |
| 1982 | 22 days |
| 1983 | 22 days |
| 1984 | 14 days |
| 1985 | 11 days |
| 1986 | 13 days |
| 1987 | 17 days |
| 1988 | 28 days |
| 1989 | 23 days |
| 1990 | 16 days |
| 1991 | 14 days |
| 1992 | 17 days |
| 1993 | 11 days |
| 1994 | 18 days |
| 1995 | 24 days |
| 1996 | 21 days |
| 1997 | 18 days |
| 1998 | 15 days |
| 1999 | n/a |
| 2001 | 11 days |
| 2002 | 21 days |
| 2003 | 19 days |
| 2004 | 22 days |
| 2005 | 21 days |
| 2006 | 14 days |
| 2007 | 16 days |
| 2008 | 15 days |
| 2009 | 18 days |
| 2010 | 18 days |
| 2011 | 13 days |
| 2012 | 14 days |
| 2013 | 21 days |
| 2014 | 13 days |
| 2015 | 13 days |
| 2016 | 10 days |
| 2017 | 26 days |
| 2018 | 14 days |
| 2019 | 18 days |
| 2020 | 12 days |
| 2021 | 26 days |
| 2022 | 20 days |
| 2023 | 22 days |
| 2024 | 16 days |
| 2025 | 17 days |
| 2026 | 11 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
93 years with a frostAcross 93 years with a frost, the median last spring frost at Pontiac Wwtp falls on 3 May and the median first autumn frost on 14 October, which leaves a median of 164 days between them.
In 1976 to 2025 the median growing season was 168 days. That is 15 days more than in 1895 to 1940.
Fitted over all years, the growing season changes by +2.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1895 to 1940) | Recent period (1976 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 3 May | 12 May | 29 April | 13 days earlier | -1.1 days per decade |
| First autumn frost | 14 October | 13 October | 17 October | 4 days later | +1.0 days per decade |
| Growing days | 164 days | 153 days | 168 days | 15 days more | +2.2 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
105 years, 1908 to 2025A day with at least 48.6 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 117.2 mm (4.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 48.6 mm (1.9 in) | |
| 5 years | 65.4 mm (2.6 in) | |
| 10 years | 77.1 mm (3.0 in) | |
| 25 years | 92.6 mm (3.6 in) | |
| 50 years | 104.7 mm (4.1 in) | |
| 100 years | 117.2 mm (4.6 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 105 years of values from 1908 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: 120.7 mm (4.8 in) in 1981; 119.4 mm (4.7 in) in 1968; 95.0 mm (3.7 in) in 2011.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Pontiac Wwtp, at 1950. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1950 ran 0.3 C (0.5 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1950 | +0.3 | +0.5 | 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
1992 to 2025 against 1961 to 1990Over 1992 to 2025, Pontiac Wwtp had a mean temperature of 9.7 C (49.4 F) and 859.5 mm (33.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Norwalk Wwtp (United States, 162 km away), Oberlin (United States, 174 km away) and Berwick (United States, 606 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Norwalk Wwtp | United States | 162 km (101 mi) | 9.5 C (49.0 F) | 905.1 mm (35.6 in) | 0.66 |
| Oberlin | United States | 174 km (108 mi) | 9.5 C (49.1 F) | 876.3 mm (34.5 in) | 0.68 |
| Berwick | United States | 606 km (377 mi) | 10.1 C (50.1 F) | 933.9 mm (36.8 in) | 0.68 |
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-17).