Rochester Weather Records (USC00127482)
Record envelope, standing records and threshold days for Rochester (USC00127482), Indiana, United States, with 123 years of record.
Key Facts for Rochester
- Rochester (USC00127482) is a weather station in Indiana, United States at 41.07 latitude and -86.21 longitude, 232 m (760 ft) above sea level.
- The station reports from 1904 to 2026, 123 years of record.
- 1,464 records set at Rochester still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Rochester tied a daily record high minimum temperature of 23.3 C (73.9 F) on 4 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Indiana, United States, 41.07 latitude, -86.21 longitude.
- Elevation: 232 m (760 ft).
- Period of record: 1904 to 2026, 123 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
7 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 20.6 C (69.1 F) | -31.1 C (-24.0 F) | 16.7 C (62.1 F) | -20.0 C (-4.0 F) |
| Feb | 22.8 C (73.0 F) | -29.4 C (-20.9 F) | 19.4 C (66.9 F) | -20.6 C (-5.1 F) |
| Mar | 30.0 C (86.0 F) | -21.7 C (-7.1 F) | 26.7 C (80.1 F) | -9.4 C (15.1 F) |
| Apr | 33.9 C (93.0 F) | -13.3 C (8.1 F) | 28.3 C (82.9 F) | -3.3 C (26.1 F) |
| May | 35.6 C (96.1 F) | -4.4 C (24.1 F) | 29.4 C (84.9 F) | 0.0 C (32.0 F) |
| Jun | 40.6 C (105.1 F) | -6.7 C (19.9 F) | 33.3 C (91.9 F) | 8.3 C (46.9 F) |
| Jul | 42.8 C (109.0 F) | 0.6 C (33.1 F) | 34.4 C (93.9 F) | 10.0 C (50.0 F) |
| Aug | 38.9 C (102.0 F) | 1.7 C (35.1 F) | 30.6 C (87.1 F) | 10.0 C (50.0 F) |
| Sep | 39.4 C (102.9 F) | -2.2 C (28.0 F) | 35.0 C (95.0 F) | 6.7 C (44.1 F) |
| Oct | 32.8 C (91.0 F) | -10.0 C (14.0 F) | 31.1 C (88.0 F) | 6.1 C (43.0 F) |
| Nov | 27.2 C (81.0 F) | -20.0 C (-4.0 F) | n/a | n/a |
| Dec | 21.1 C (70.0 F) | -34.4 C (-29.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1904 | 5 |
| 1905 | 17 |
| 1906 | 12 |
| 1907 | 11 |
| 1908 | 14 |
| 1909 | 15 |
| 1910 | 11 |
| 1911 | 22 |
| 1912 | 9 |
| 1913 | 21 |
| 1914 | 16 |
| 1915 | 15 |
| 1916 | 21 |
| 1924 | 5 |
| 1925 | 38 |
| 1926 | 12 |
| 1928 | 11 |
| 1929 | 21 |
| 1930 | 26 |
| 1931 | 19 |
| 1932 | 11 |
| 1933 | 25 |
| 1934 | 26 |
| 1935 | 7 |
| 1936 | 28 |
| 1937 | 5 |
| 1938 | 14 |
| 1939 | 19 |
| 1940 | 16 |
| 1941 | 15 |
| 1942 | 11 |
| 1943 | 9 |
| 1944 | 9 |
| 1945 | 10 |
| 1946 | 17 |
| 1947 | 12 |
| 1948 | 5 |
| 1949 | 8 |
| 1950 | 22 |
| 1951 | 16 |
| 1952 | 17 |
| 1953 | 17 |
| 1954 | 13 |
| 1955 | 13 |
| 1956 | 14 |
| 1957 | 9 |
| 1958 | 13 |
| 1959 | 9 |
| 1960 | 11 |
| 1961 | 6 |
| 1962 | 15 |
| 1963 | 31 |
| 1964 | 18 |
| 1965 | 14 |
| 1966 | 13 |
| 1967 | 23 |
| 1968 | 9 |
| 1969 | 10 |
| 1970 | 15 |
| 1971 | 9 |
| 1972 | 15 |
| 1973 | 5 |
| 1974 | 13 |
| 1975 | 9 |
| 1976 | 9 |
| 1977 | 22 |
| 1978 | 4 |
| 1979 | 16 |
| 1980 | 8 |
| 1981 | 8 |
| 1982 | 21 |
| 1983 | 24 |
| 1984 | 14 |
| 1985 | 13 |
| 1986 | 14 |
| 1987 | 5 |
| 1988 | 13 |
| 1989 | 19 |
| 1990 | 16 |
| 1991 | 20 |
| 1992 | 9 |
| 1993 | 3 |
| 1994 | 11 |
| 1995 | 8 |
| 1996 | 11 |
| 1997 | 11 |
| 1998 | 11 |
| 1999 | 11 |
| 2000 | 11 |
| 2001 | 7 |
| 2002 | 13 |
| 2003 | 2 |
| 2004 | 10 |
| 2005 | 4 |
| 2006 | 10 |
| 2007 | 7 |
| 2008 | 4 |
| 2009 | 8 |
| 2010 | 3 |
| 2011 | 6 |
| 2012 | 22 |
| 2013 | 5 |
| 2014 | 11 |
| 2015 | 12 |
| 2016 | 9 |
| 2017 | 14 |
| 2018 | 11 |
| 2019 | 15 |
| 2020 | 9 |
| 2021 | 8 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 10 |
| 2025 | 4 |
| 2026 | 7 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1956-04-29 | Record daily precipitation | Record daily precipitation 119.9 mm (4.7 in) |
| 1963-01-24 | Record low maximum temperature | Record low maximum temperature -20.0 C (-4.0 F) |
| 1972-01-16 | Record low maximum temperature | Record low maximum temperature -22.8 C (-9.0 F) |
| 1977-01-17 | Record low maximum temperature | Record low maximum temperature -23.3 C (-9.9 F) |
| 1983-12-25 | Record low maximum temperature | Record low maximum temperature -23.9 C (-11.0 F) |
| 1987-01-20 | Record daily snowfall | Record daily snowfall 35.6 cm (14.0 in) |
| 1990-08-18 | Record daily precipitation | Record daily precipitation 158.8 mm (6.3 in) |
| 1994-01-19 | Record low maximum temperature | Record low maximum temperature -25.6 C (-14.1 F) |
Wettest Day of Each Month
Aug: 158.8 mm (6.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 79.0 mm (3.1 in) | 5 January 1916 |
| Feb | 78.7 mm (3.1 in) | 21 February 2018 |
| Mar | 81.3 mm (3.2 in) | 11 March 2009 |
| Apr | 119.9 mm (4.7 in) | 29 April 1956 |
| May | 103.1 mm (4.1 in) | 11 May 1905 |
| Jun | 104.9 mm (4.1 in) | 1 June 2013 |
| Jul | 119.4 mm (4.7 in) | 7 July 2001 |
| Aug | 158.8 mm (6.3 in) | 18 August 1990 |
| Sep | 109.2 mm (4.3 in) | 15 September 1966 |
| Oct | 87.6 mm (3.4 in) | 2 October 1942 |
| Nov | 116.8 mm (4.6 in) | 2 November 1982 |
| Dec | 78.7 mm (3.1 in) | 25 December 1965 |
Period of Record Coverage
1904 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1904 | 264 | 72% | No |
| 1905 | 341 | 93% | Yes |
| 1906 | 311 | 85% | No |
| 1907 | 361 | 99% | Yes |
| 1908 | 362 | 99% | Yes |
| 1909 | 359 | 98% | Yes |
| 1910 | 357 | 98% | Yes |
| 1911 | 361 | 99% | Yes |
| 1912 | 363 | 99% | Yes |
| 1913 | 328 | 90% | No |
| 1914 | 197 | 54% | No |
| 1915 | 333 | 91% | Yes |
| 1916 | 306 | 84% | No |
| 1924 | 61 | 17% | No |
| 1925 | 351 | 96% | Yes |
| 1926 | 160 | 44% | No |
| 1927 | 26 | 7% | No |
| 1928 | 291 | 80% | No |
| 1929 | 348 | 95% | Yes |
| 1930 | 334 | 92% | Yes |
| 1931 | 350 | 96% | Yes |
| 1932 | 357 | 98% | Yes |
| 1933 | 361 | 99% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 364 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 363 | 99% | Yes |
| 1938 | 363 | 99% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 364 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 365 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 363 | 99% | Yes |
| 1947 | 362 | 99% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 349 | 96% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 360 | 99% | Yes |
| 1952 | 358 | 98% | Yes |
| 1953 | 359 | 98% | Yes |
| 1954 | 361 | 99% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 363 | 99% | Yes |
| 1959 | 363 | 99% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 363 | 99% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 363 | 99% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 329 | 90% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 363 | 99% | Yes |
| 1982 | 345 | 95% | Yes |
| 1983 | 362 | 99% | Yes |
| 1984 | 364 | 99% | Yes |
| 1985 | 360 | 99% | Yes |
| 1986 | 362 | 99% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 364 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 363 | 99% | Yes |
| 1995 | 363 | 99% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 364 | 99% | Yes |
| 2001 | 361 | 99% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 364 | 100% | Yes |
| 2006 | 363 | 99% | Yes |
| 2007 | 364 | 100% | Yes |
| 2008 | 364 | 99% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 362 | 99% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 323 | 88% | No |
| 2014 | 253 | 69% | No |
| 2015 | 365 | 100% | Yes |
| 2016 | 360 | 98% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 364 | 100% | Yes |
| 2026 | 283 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 4 September 2026 | Rochester, US | daily high min (Tie, Provisional) | 23.3 C (73.9 F) | tie | 87 years | 9 of 100 (Routine) |
| 3 September 2026 | Rochester, US | daily high min (Tie, Provisional) | 22.8 C (73.0 F) | tie | 64 years | 7 of 100 (Routine) |
| 11 August 2026 | Rochester, US | daily rain | 41.7 mm (1.6 in) | 5.1 mm (0.20 in) | 109 years | 43 of 100 (Notable) |
| 28 July 2026 | Rochester, US | daily rain | 25.4 mm (1.0 in) | 2.0 mm (0.08 in) | 75 years | 33 of 100 (Routine) |
| 1 July 2026 | Rochester, US | daily high min | 24.4 C (75.9 F) | 0.5 C (0.9 F) | 95 years | 39 of 100 (Notable) |
| 14 April 2026 | Rochester, US | daily high min | 16.7 C (62.1 F) | 1.7 C (3.1 F) | 84 years | 38 of 100 (Notable) |
| 1 April 2026 | Rochester, US | daily rain | 40.6 mm (1.6 in) | 8.1 mm (0.32 in) | 96 years | 47 of 100 (Notable) |
| 27 March 2026 | Rochester, US | daily high max (Tie) | 26.7 C (80.1 F) | tie | 80 years | 8 of 100 (Routine) |
| 11 March 2026 | Rochester, US | daily high min | 15.6 C (60.1 F) | 2.8 C (5.0 F) | 36 years | 24 of 100 (Routine) |
| 11 March 2026 | Rochester, US | daily high max (Tie) | 20.6 C (69.1 F) | tie | 4 years | 2 of 100 (Routine) |
| 10 March 2026 | Rochester, US | daily high max (Tie) | 21.7 C (71.1 F) | tie | 100 years | 10 of 100 (Routine) |
| 7 March 2026 | Rochester, US | daily high max | 25.0 C (77.0 F) | 3.3 C (5.9 F) | 43 years | 26 of 100 (Routine) |
| 7 March 2026 | Rochester, US | daily high min | 12.2 C (54.0 F) | 1.6 C (2.9 F) | 43 years | 24 of 100 (Routine) |
| 17 February 2026 | Rochester, US | daily high max (Tie) | 15.0 C (59.0 F) | tie | 115 years | 10 of 100 (Routine) |
| 25 January 2026 | Rochester, US | daily snowfall | 11.4 cm (4.5 in) | 3.8 cm (1.5 in) | 12 years | 21 of 100 (Routine) |
| 15 January 2026 | Rochester, US | daily snowfall | 15.2 cm (6.0 in) | 2.5 cm (1.0 in) | 16 years | 20 of 100 (Routine) |
| 10 January 2026 | Rochester, US | daily high max | 16.7 C (62.1 F) | 2.3 C (4.1 F) | 87 years | 39 of 100 (Notable) |
| 9 January 2026 | Rochester, US | daily high max | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 60 years | 29 of 100 (Routine) |
| 8 December 2025 | Rochester, US | daily snow depth (Tie) | 12.7 cm (5.0 in) | tie | 60 years | 7 of 100 (Routine) |
| 7 December 2025 | Rochester, US | daily snow depth (Tie) | 12.7 cm (5.0 in) | tie | 83 years | 8 of 100 (Routine) |
Climate Trend
102 complete years, 1905 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1905 | 9.8 C | -0.27 C |
| 1907 | 9.7 C | -0.39 C |
| 1908 | 11.2 C | +1.15 C |
| 1909 | 10.3 C | +0.20 C |
| 1910 | 10.6 C | +0.49 C |
| 1911 | 11.3 C | +1.23 C |
| 1912 | 9.5 C | -0.56 C |
| 1915 | 9.9 C | -0.19 C |
| 1925 | 9.2 C | -0.85 C |
| 1929 | 9.1 C | -0.92 C |
| 1930 | 10.8 C | +0.72 C |
| 1931 | 12.2 C | +2.16 C |
| 1932 | 10.6 C | +0.50 C |
| 1933 | 11.2 C | +1.13 C |
| 1934 | 11.0 C | +0.97 C |
| 1935 | 10.2 C | +0.14 C |
| 1936 | 10.4 C | +0.33 C |
| 1937 | 9.9 C | -0.12 C |
| 1938 | 11.9 C | +1.81 C |
| 1939 | 11.6 C | +1.56 C |
| 1940 | 10.1 C | +0.02 C |
| 1941 | 11.8 C | +1.73 C |
| 1942 | 10.9 C | +0.87 C |
| 1943 | 10.3 C | +0.26 C |
| 1944 | 11.4 C | +1.30 C |
| 1945 | 10.4 C | +0.36 C |
| 1946 | 12.2 C | +2.13 C |
| 1947 | 10.5 C | +0.45 C |
| 1948 | 10.6 C | +0.51 C |
| 1950 | 9.3 C | -0.72 C |
| 1951 | 9.2 C | -0.89 C |
| 1952 | 10.3 C | +0.26 C |
| 1953 | 10.7 C | +0.63 C |
| 1954 | 10.4 C | +0.30 C |
| 1955 | 10.2 C | +0.12 C |
| 1956 | 10.4 C | +0.32 C |
| 1957 | 9.8 C | -0.22 C |
| 1958 | 8.8 C | -1.31 C |
| 1959 | 9.9 C | -0.21 C |
| 1960 | 9.1 C | -1.00 C |
| 1961 | 9.6 C | -0.48 C |
| 1962 | 9.1 C | -1.00 C |
| 1963 | 8.4 C | -1.65 C |
| 1964 | 9.7 C | -0.40 C |
| 1965 | 9.3 C | -0.77 C |
| 1966 | 8.8 C | -1.28 C |
| 1967 | 8.6 C | -1.44 C |
| 1968 | 9.2 C | -0.86 C |
| 1969 | 8.8 C | -1.30 C |
| 1970 | 9.1 C | -0.99 C |
| 1971 | 9.6 C | -0.46 C |
| 1972 | 8.6 C | -1.44 C |
| 1973 | 10.6 C | +0.54 C |
| 1974 | 9.5 C | -0.56 C |
| 1975 | 10.0 C | -0.10 C |
| 1976 | 8.8 C | -1.23 C |
| 1977 | 9.5 C | -0.52 C |
| 1979 | 8.6 C | -1.49 C |
| 1980 | 9.5 C | -0.60 C |
| 1981 | 9.3 C | -0.76 C |
| 1982 | 8.9 C | -1.12 C |
| 1983 | 9.5 C | -0.58 C |
| 1984 | 9.3 C | -0.81 C |
| 1985 | 9.4 C | -0.70 C |
| 1986 | 9.9 C | -0.15 C |
| 1987 | 10.6 C | +0.57 C |
| 1988 | 9.6 C | -0.45 C |
| 1989 | 8.6 C | -1.45 C |
| 1990 | 10.5 C | +0.39 C |
| 1991 | 10.7 C | +0.67 C |
| 1992 | 9.3 C | -0.77 C |
| 1993 | 9.1 C | -0.95 C |
| 1994 | 9.4 C | -0.62 C |
| 1995 | 9.6 C | -0.48 C |
| 1996 | 8.7 C | -1.37 C |
| 1997 | 8.9 C | -1.12 C |
| 1998 | 11.7 C | +1.62 C |
| 1999 | 10.4 C | +0.31 C |
| 2000 | 9.5 C | -0.57 C |
| 2001 | 10.4 C | +0.37 C |
| 2002 | 10.5 C | +0.39 C |
| 2003 | 9.6 C | -0.45 C |
| 2004 | 10.0 C | -0.10 C |
| 2005 | 10.4 C | +0.34 C |
| 2006 | 10.9 C | +0.83 C |
| 2007 | 10.4 C | +0.35 C |
| 2008 | 9.5 C | -0.56 C |
| 2009 | 9.5 C | -0.56 C |
| 2010 | 10.6 C | +0.49 C |
| 2011 | 10.5 C | +0.39 C |
| 2012 | 11.8 C | +1.69 C |
| 2015 | 10.1 C | +0.08 C |
| 2016 | 11.4 C | +1.37 C |
| 2017 | 11.1 C | +1.04 C |
| 2018 | 10.2 C | +0.18 C |
| 2019 | 9.8 C | -0.23 C |
| 2020 | 10.7 C | +0.66 C |
| 2021 | 10.9 C | +0.79 C |
| 2022 | 10.0 C | -0.08 C |
| 2023 | 11.3 C | +1.20 C |
| 2024 | 11.7 C | +1.63 C |
| 2025 | 10.3 C | +0.23 C |
The fitted trend in annual mean temperature here over 1905 to 2025 is -0.02 C (-0.07 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.03 F (-0.13 to 0.07) per decade. The slope is a straight line fitted to 102 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.02 C (-0.07 to 0.04) per decade | -0.03 F (-0.13 to 0.07) per decade | 1905 to 2025 | 102 | Not clearly different from zero |
| Mean daily maximum | -0.1 C (-0.1 to 0.0) per decade | -0.1 F (-0.2 to 0.0) per decade | 1905 to 2025 | 102 | Not clearly different from zero |
| Mean daily minimum | 0.02 C (-0.04 to 0.09) per decade | 0.04 F (-0.08 to 0.16) per decade | 1905 to 2025 | 102 | 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
1904 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.8 C (109.0 F) | 1934 | 35.6 C (96.1 F) | 116 |
| Coldest night (TNn) | -34.4 C (-29.9 F) | 1924 | -22.8 C (-9.0 F) | 116 |
| Wettest day (Rx1day) | 158.8 mm (6.3 in) | 1990 | 61.4 mm (2.4 in) | 116 |
| Wettest five days (Rx5day) | 211.9 mm (8.3 in) | 1990 | 92.6 mm (3.6 in) | 116 |
| Longest dry spell (CDD) | 41 days | 1908 | 18 days | 116 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1904 | 32.8 C (91.0 F) |
| 1905 | 37.8 C (100.0 F) |
| 1906 | 31.7 C (89.1 F) |
| 1907 | 31.7 C (89.1 F) |
| 1908 | 35.0 C (95.0 F) |
| 1909 | 31.7 C (89.1 F) |
| 1910 | 36.1 C (97.0 F) |
| 1911 | 38.3 C (100.9 F) |
| 1912 | 33.9 C (93.0 F) |
| 1913 | 36.1 C (97.0 F) |
| 1914 | 35.6 C (96.1 F) |
| 1915 | 33.3 C (91.9 F) |
| 1916 | 40.6 C (105.1 F) |
| 1924 | 23.9 C (75.0 F) |
| 1925 | 39.4 C (102.9 F) |
| 1926 | 33.3 C (91.9 F) |
| 1927 | 12.2 C (54.0 F) |
| 1928 | 37.2 C (99.0 F) |
| 1929 | 35.6 C (96.1 F) |
| 1930 | 40.0 C (104.0 F) |
| 1931 | 38.3 C (100.9 F) |
| 1932 | 37.8 C (100.0 F) |
| 1933 | 39.4 C (102.9 F) |
| 1934 | 42.8 C (109.0 F) |
| 1935 | 36.1 C (97.0 F) |
| 1936 | 42.2 C (108.0 F) |
| 1937 | 35.6 C (96.1 F) |
| 1938 | 35.0 C (95.0 F) |
| 1939 | 39.4 C (102.9 F) |
| 1940 | 38.3 C (100.9 F) |
| 1941 | 37.8 C (100.0 F) |
| 1942 | 36.1 C (97.0 F) |
| 1943 | 34.4 C (93.9 F) |
| 1944 | 37.8 C (100.0 F) |
| 1945 | 36.7 C (98.1 F) |
| 1946 | 37.2 C (99.0 F) |
| 1947 | 38.3 C (100.9 F) |
| 1948 | 35.0 C (95.0 F) |
| 1949 | 35.0 C (95.0 F) |
| 1950 | 33.9 C (93.0 F) |
| 1951 | 35.6 C (96.1 F) |
| 1952 | 37.8 C (100.0 F) |
| 1953 | 38.3 C (100.9 F) |
| 1954 | 39.4 C (102.9 F) |
| 1955 | 37.8 C (100.0 F) |
| 1956 | 37.8 C (100.0 F) |
| 1957 | 36.7 C (98.1 F) |
| 1958 | 32.8 C (91.0 F) |
| 1959 | 33.9 C (93.0 F) |
| 1960 | 34.4 C (93.9 F) |
| 1961 | 33.3 C (91.9 F) |
| 1962 | 36.1 C (97.0 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 37.2 C (99.0 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 35.0 C (95.0 F) |
| 1969 | 36.7 C (98.1 F) |
| 1970 | 36.7 C (98.1 F) |
| 1971 | 36.1 C (97.0 F) |
| 1972 | 33.9 C (93.0 F) |
| 1973 | 35.0 C (95.0 F) |
| 1974 | 37.2 C (99.0 F) |
| 1975 | 35.0 C (95.0 F) |
| 1976 | 35.0 C (95.0 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 32.8 C (91.0 F) |
| 1980 | 39.4 C (102.9 F) |
| 1981 | 35.6 C (96.1 F) |
| 1982 | 35.6 C (96.1 F) |
| 1983 | 38.3 C (100.9 F) |
| 1984 | 34.4 C (93.9 F) |
| 1985 | 33.3 C (91.9 F) |
| 1986 | 33.9 C (93.0 F) |
| 1987 | 34.4 C (93.9 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 35.6 C (96.1 F) |
| 1990 | 35.6 C (96.1 F) |
| 1991 | 36.7 C (98.1 F) |
| 1992 | 34.4 C (93.9 F) |
| 1993 | 32.8 C (91.0 F) |
| 1994 | 33.9 C (93.0 F) |
| 1995 | 36.1 C (97.0 F) |
| 1996 | 33.3 C (91.9 F) |
| 1997 | 34.4 C (93.9 F) |
| 1998 | 34.4 C (93.9 F) |
| 1999 | 37.8 C (100.0 F) |
| 2000 | 36.7 C (98.1 F) |
| 2001 | 33.3 C (91.9 F) |
| 2002 | 35.6 C (96.1 F) |
| 2003 | 34.4 C (93.9 F) |
| 2004 | 32.2 C (90.0 F) |
| 2005 | 35.0 C (95.0 F) |
| 2006 | 34.4 C (93.9 F) |
| 2007 | 34.4 C (93.9 F) |
| 2008 | 33.3 C (91.9 F) |
| 2009 | 33.3 C (91.9 F) |
| 2010 | 34.4 C (93.9 F) |
| 2011 | 37.2 C (99.0 F) |
| 2012 | 37.8 C (100.0 F) |
| 2013 | 35.6 C (96.1 F) |
| 2014 | 36.7 C (98.1 F) |
| 2015 | 33.3 C (91.9 F) |
| 2016 | 33.9 C (93.0 F) |
| 2017 | 35.0 C (95.0 F) |
| 2018 | 35.6 C (96.1 F) |
| 2019 | 35.0 C (95.0 F) |
| 2020 | 34.4 C (93.9 F) |
| 2021 | 33.9 C (93.0 F) |
| 2022 | 36.1 C (97.0 F) |
| 2023 | 33.9 C (93.0 F) |
| 2024 | 35.6 C (96.1 F) |
| 2025 | 34.4 C (93.9 F) |
| 2026 | 35.0 C (95.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1904 | -17.8 C (0.0 F) |
| 1905 | -29.4 C (-20.9 F) |
| 1906 | -22.8 C (-9.0 F) |
| 1907 | -18.9 C (-2.0 F) |
| 1908 | -15.6 C (3.9 F) |
| 1909 | -23.3 C (-9.9 F) |
| 1910 | -22.8 C (-9.0 F) |
| 1911 | -16.7 C (1.9 F) |
| 1912 | -26.1 C (-15.0 F) |
| 1913 | -21.7 C (-7.1 F) |
| 1914 | -24.4 C (-11.9 F) |
| 1915 | -28.9 C (-20.0 F) |
| 1916 | -22.8 C (-9.0 F) |
| 1924 | -34.4 C (-29.9 F) |
| 1925 | -24.4 C (-11.9 F) |
| 1926 | -24.4 C (-11.9 F) |
| 1927 | -15.6 C (3.9 F) |
| 1928 | -24.4 C (-11.9 F) |
| 1929 | -23.9 C (-11.0 F) |
| 1930 | -27.8 C (-18.0 F) |
| 1931 | -14.4 C (6.1 F) |
| 1932 | -24.4 C (-11.9 F) |
| 1933 | -27.2 C (-17.0 F) |
| 1934 | -22.8 C (-9.0 F) |
| 1935 | -21.7 C (-7.1 F) |
| 1936 | -28.3 C (-18.9 F) |
| 1937 | -20.6 C (-5.1 F) |
| 1938 | -17.8 C (0.0 F) |
| 1939 | -15.6 C (3.9 F) |
| 1940 | -25.6 C (-14.1 F) |
| 1941 | -18.9 C (-2.0 F) |
| 1942 | -23.3 C (-9.9 F) |
| 1943 | -22.8 C (-9.0 F) |
| 1944 | -21.7 C (-7.1 F) |
| 1945 | -22.8 C (-9.0 F) |
| 1946 | -20.0 C (-4.0 F) |
| 1947 | -17.8 C (0.0 F) |
| 1948 | -21.1 C (-6.0 F) |
| 1949 | -18.9 C (-2.0 F) |
| 1950 | -21.7 C (-7.1 F) |
| 1951 | -26.7 C (-16.1 F) |
| 1952 | -17.8 C (0.0 F) |
| 1953 | -20.6 C (-5.1 F) |
| 1954 | -18.3 C (-0.9 F) |
| 1955 | -25.6 C (-14.1 F) |
| 1956 | -17.8 C (0.0 F) |
| 1957 | -23.9 C (-11.0 F) |
| 1958 | -25.6 C (-14.1 F) |
| 1959 | -25.0 C (-13.0 F) |
| 1960 | -26.7 C (-16.1 F) |
| 1961 | -26.1 C (-15.0 F) |
| 1962 | -24.4 C (-11.9 F) |
| 1963 | -27.8 C (-18.0 F) |
| 1964 | -21.7 C (-7.1 F) |
| 1965 | -23.9 C (-11.0 F) |
| 1966 | -26.1 C (-15.0 F) |
| 1967 | -22.8 C (-9.0 F) |
| 1968 | -27.2 C (-17.0 F) |
| 1969 | -22.2 C (-8.0 F) |
| 1970 | -26.7 C (-16.1 F) |
| 1971 | -23.3 C (-9.9 F) |
| 1972 | -29.4 C (-20.9 F) |
| 1973 | -22.2 C (-8.0 F) |
| 1974 | -22.2 C (-8.0 F) |
| 1975 | -26.1 C (-15.0 F) |
| 1976 | -26.1 C (-15.0 F) |
| 1977 | -28.9 C (-20.0 F) |
| 1978 | -25.6 C (-14.1 F) |
| 1979 | -26.7 C (-16.1 F) |
| 1980 | -21.7 C (-7.1 F) |
| 1981 | -26.1 C (-15.0 F) |
| 1982 | -30.0 C (-22.0 F) |
| 1983 | -30.0 C (-22.0 F) |
| 1984 | -28.9 C (-20.0 F) |
| 1985 | -31.1 C (-24.0 F) |
| 1986 | -20.0 C (-4.0 F) |
| 1987 | -25.0 C (-13.0 F) |
| 1988 | -22.8 C (-9.0 F) |
| 1989 | -29.4 C (-20.9 F) |
| 1990 | -21.7 C (-7.1 F) |
| 1991 | -17.2 C (1.0 F) |
| 1992 | -24.4 C (-11.9 F) |
| 1993 | -22.8 C (-9.0 F) |
| 1994 | -29.4 C (-20.9 F) |
| 1995 | -20.6 C (-5.1 F) |
| 1996 | -25.0 C (-13.0 F) |
| 1997 | -25.6 C (-14.1 F) |
| 1998 | -15.6 C (3.9 F) |
| 1999 | -26.7 C (-16.1 F) |
| 2000 | -23.9 C (-11.0 F) |
| 2001 | -17.2 C (1.0 F) |
| 2002 | -18.9 C (-2.0 F) |
| 2003 | -21.7 C (-7.1 F) |
| 2004 | -22.8 C (-9.0 F) |
| 2005 | -18.9 C (-2.0 F) |
| 2006 | -17.8 C (0.0 F) |
| 2007 | -22.8 C (-9.0 F) |
| 2008 | -19.4 C (-2.9 F) |
| 2009 | -27.8 C (-18.0 F) |
| 2010 | -18.3 C (-0.9 F) |
| 2011 | -22.2 C (-8.0 F) |
| 2012 | -16.7 C (1.9 F) |
| 2013 | -16.7 C (1.9 F) |
| 2014 | -13.3 C (8.1 F) |
| 2015 | -22.2 C (-8.0 F) |
| 2016 | -24.4 C (-11.9 F) |
| 2017 | -21.7 C (-7.1 F) |
| 2018 | -26.1 C (-15.0 F) |
| 2019 | -28.3 C (-18.9 F) |
| 2020 | -18.3 C (-0.9 F) |
| 2021 | -21.1 C (-6.0 F) |
| 2022 | -22.8 C (-9.0 F) |
| 2023 | -15.0 C (5.0 F) |
| 2024 | -22.8 C (-9.0 F) |
| 2025 | -20.0 C (-4.0 F) |
| 2026 | -20.6 C (-5.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1904 | 86.4 mm (3.4 in) |
| 1905 | 103.1 mm (4.1 in) |
| 1906 | 50.8 mm (2.0 in) |
| 1907 | 69.9 mm (2.8 in) |
| 1908 | 47.2 mm (1.9 in) |
| 1909 | 80.8 mm (3.2 in) |
| 1910 | 54.1 mm (2.1 in) |
| 1911 | 63.5 mm (2.5 in) |
| 1912 | 73.7 mm (2.9 in) |
| 1913 | 54.9 mm (2.2 in) |
| 1914 | 30.5 mm (1.2 in) |
| 1915 | 38.4 mm (1.5 in) |
| 1916 | 79.0 mm (3.1 in) |
| 1924 | 33.0 mm (1.3 in) |
| 1925 | 57.7 mm (2.3 in) |
| 1926 | 46.0 mm (1.8 in) |
| 1927 | 36.6 mm (1.4 in) |
| 1928 | 38.6 mm (1.5 in) |
| 1929 | 45.7 mm (1.8 in) |
| 1930 | 66.0 mm (2.6 in) |
| 1931 | 44.2 mm (1.7 in) |
| 1932 | 106.9 mm (4.2 in) |
| 1933 | 90.7 mm (3.6 in) |
| 1934 | 98.8 mm (3.9 in) |
| 1935 | 58.4 mm (2.3 in) |
| 1936 | 92.7 mm (3.6 in) |
| 1937 | 68.1 mm (2.7 in) |
| 1938 | 80.5 mm (3.2 in) |
| 1939 | 62.0 mm (2.4 in) |
| 1940 | 46.2 mm (1.8 in) |
| 1941 | 50.3 mm (2.0 in) |
| 1942 | 99.8 mm (3.9 in) |
| 1943 | 62.2 mm (2.4 in) |
| 1944 | 35.1 mm (1.4 in) |
| 1945 | 61.0 mm (2.4 in) |
| 1946 | 60.2 mm (2.4 in) |
| 1947 | 78.5 mm (3.1 in) |
| 1948 | 56.6 mm (2.2 in) |
| 1949 | 58.9 mm (2.3 in) |
| 1950 | 67.3 mm (2.6 in) |
| 1951 | 83.3 mm (3.3 in) |
| 1952 | 57.9 mm (2.3 in) |
| 1953 | 25.4 mm (1.0 in) |
| 1954 | 58.7 mm (2.3 in) |
| 1955 | 58.7 mm (2.3 in) |
| 1956 | 119.9 mm (4.7 in) |
| 1957 | 66.8 mm (2.6 in) |
| 1958 | 105.9 mm (4.2 in) |
| 1959 | 39.9 mm (1.6 in) |
| 1960 | 50.8 mm (2.0 in) |
| 1961 | 69.3 mm (2.7 in) |
| 1962 | 37.1 mm (1.5 in) |
| 1963 | 49.8 mm (2.0 in) |
| 1964 | 48.3 mm (1.9 in) |
| 1965 | 94.0 mm (3.7 in) |
| 1966 | 109.2 mm (4.3 in) |
| 1967 | 56.1 mm (2.2 in) |
| 1968 | 74.4 mm (2.9 in) |
| 1969 | 33.3 mm (1.3 in) |
| 1970 | 81.3 mm (3.2 in) |
| 1971 | 63.5 mm (2.5 in) |
| 1972 | 72.1 mm (2.8 in) |
| 1973 | 34.3 mm (1.4 in) |
| 1974 | 46.2 mm (1.8 in) |
| 1975 | 80.0 mm (3.1 in) |
| 1976 | 41.1 mm (1.6 in) |
| 1977 | 63.5 mm (2.5 in) |
| 1978 | 38.4 mm (1.5 in) |
| 1979 | 44.5 mm (1.8 in) |
| 1980 | 87.1 mm (3.4 in) |
| 1981 | 81.3 mm (3.2 in) |
| 1982 | 116.8 mm (4.6 in) |
| 1983 | 50.8 mm (2.0 in) |
| 1984 | 63.5 mm (2.5 in) |
| 1985 | 54.6 mm (2.1 in) |
| 1986 | 65.3 mm (2.6 in) |
| 1987 | 53.3 mm (2.1 in) |
| 1988 | 41.7 mm (1.6 in) |
| 1989 | 63.0 mm (2.5 in) |
| 1990 | 158.8 mm (6.3 in) |
| 1991 | 56.6 mm (2.2 in) |
| 1992 | 59.9 mm (2.4 in) |
| 1993 | 55.9 mm (2.2 in) |
| 1994 | 64.3 mm (2.5 in) |
| 1995 | 74.2 mm (2.9 in) |
| 1996 | 117.3 mm (4.6 in) |
| 1997 | 66.0 mm (2.6 in) |
| 1998 | 97.8 mm (3.9 in) |
| 1999 | 61.7 mm (2.4 in) |
| 2000 | 43.9 mm (1.7 in) |
| 2001 | 119.4 mm (4.7 in) |
| 2002 | 48.8 mm (1.9 in) |
| 2003 | 55.1 mm (2.2 in) |
| 2004 | 56.4 mm (2.2 in) |
| 2005 | 38.6 mm (1.5 in) |
| 2006 | 53.3 mm (2.1 in) |
| 2007 | 57.7 mm (2.3 in) |
| 2008 | 76.2 mm (3.0 in) |
| 2009 | 81.3 mm (3.2 in) |
| 2010 | 43.2 mm (1.7 in) |
| 2011 | 51.8 mm (2.0 in) |
| 2012 | 55.9 mm (2.2 in) |
| 2013 | 104.9 mm (4.1 in) |
| 2014 | 72.9 mm (2.9 in) |
| 2015 | 78.0 mm (3.1 in) |
| 2016 | 67.3 mm (2.6 in) |
| 2017 | 66.0 mm (2.6 in) |
| 2018 | 78.7 mm (3.1 in) |
| 2019 | 101.6 mm (4.0 in) |
| 2020 | 50.8 mm (2.0 in) |
| 2021 | 75.2 mm (3.0 in) |
| 2022 | 30.5 mm (1.2 in) |
| 2023 | 82.6 mm (3.3 in) |
| 2024 | 77.2 mm (3.0 in) |
| 2025 | 50.8 mm (2.0 in) |
| 2026 | 47.0 mm (1.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1904 | 102.7 mm (4.0 in) |
| 1905 | 139.0 mm (5.5 in) |
| 1906 | 79.0 mm (3.1 in) |
| 1907 | 83.9 mm (3.3 in) |
| 1908 | 80.4 mm (3.2 in) |
| 1909 | 112.3 mm (4.4 in) |
| 1910 | 65.8 mm (2.6 in) |
| 1911 | 69.4 mm (2.7 in) |
| 1912 | 97.8 mm (3.9 in) |
| 1913 | 131.1 mm (5.2 in) |
| 1914 | 53.4 mm (2.1 in) |
| 1915 | 61.5 mm (2.4 in) |
| 1916 | 65.1 mm (2.6 in) |
| 1924 | 12.7 mm (0.5 in) |
| 1925 | 64.3 mm (2.5 in) |
| 1926 | 85.9 mm (3.4 in) |
| 1927 | 105.1 mm (4.1 in) |
| 1928 | 65.8 mm (2.6 in) |
| 1929 | 67.3 mm (2.6 in) |
| 1930 | 90.4 mm (3.6 in) |
| 1931 | 68.8 mm (2.7 in) |
| 1932 | 114.5 mm (4.5 in) |
| 1933 | 110.3 mm (4.3 in) |
| 1934 | 118.4 mm (4.7 in) |
| 1935 | 99.3 mm (3.9 in) |
| 1936 | 121.6 mm (4.8 in) |
| 1937 | 98.6 mm (3.9 in) |
| 1938 | 117.8 mm (4.6 in) |
| 1939 | 84.1 mm (3.3 in) |
| 1940 | 66.8 mm (2.6 in) |
| 1941 | 107.0 mm (4.2 in) |
| 1942 | 112.8 mm (4.4 in) |
| 1943 | 91.8 mm (3.6 in) |
| 1944 | 84.4 mm (3.3 in) |
| 1945 | 78.0 mm (3.1 in) |
| 1946 | 82.3 mm (3.2 in) |
| 1947 | 98.5 mm (3.9 in) |
| 1948 | 72.9 mm (2.9 in) |
| 1949 | 85.4 mm (3.4 in) |
| 1950 | 80.8 mm (3.2 in) |
| 1951 | 101.1 mm (4.0 in) |
| 1952 | 75.7 mm (3.0 in) |
| 1953 | 52.9 mm (2.1 in) |
| 1954 | 95.2 mm (3.7 in) |
| 1955 | 121.2 mm (4.8 in) |
| 1956 | 129.3 mm (5.1 in) |
| 1957 | 100.3 mm (3.9 in) |
| 1958 | 153.4 mm (6.0 in) |
| 1959 | 68.7 mm (2.7 in) |
| 1960 | 69.6 mm (2.7 in) |
| 1961 | 128.0 mm (5.0 in) |
| 1962 | 47.5 mm (1.9 in) |
| 1963 | 79.2 mm (3.1 in) |
| 1964 | 83.3 mm (3.3 in) |
| 1965 | 105.5 mm (4.2 in) |
| 1966 | 133.8 mm (5.3 in) |
| 1967 | 93.2 mm (3.7 in) |
| 1968 | 103.9 mm (4.1 in) |
| 1969 | 65.5 mm (2.6 in) |
| 1970 | 125.3 mm (4.9 in) |
| 1971 | 86.9 mm (3.4 in) |
| 1972 | 94.4 mm (3.7 in) |
| 1973 | 70.2 mm (2.8 in) |
| 1974 | 65.6 mm (2.6 in) |
| 1975 | 108.9 mm (4.3 in) |
| 1976 | 56.2 mm (2.2 in) |
| 1977 | 105.5 mm (4.2 in) |
| 1978 | 71.4 mm (2.8 in) |
| 1979 | 66.7 mm (2.6 in) |
| 1980 | 122.8 mm (4.8 in) |
| 1981 | 120.7 mm (4.8 in) |
| 1982 | 144.0 mm (5.7 in) |
| 1983 | 89.4 mm (3.5 in) |
| 1984 | 79.6 mm (3.1 in) |
| 1985 | 72.4 mm (2.9 in) |
| 1986 | 106.9 mm (4.2 in) |
| 1987 | 95.0 mm (3.7 in) |
| 1988 | 55.1 mm (2.2 in) |
| 1989 | 85.4 mm (3.4 in) |
| 1990 | 211.9 mm (8.3 in) |
| 1991 | 107.9 mm (4.2 in) |
| 1992 | 72.4 mm (2.9 in) |
| 1993 | 92.5 mm (3.6 in) |
| 1994 | 92.7 mm (3.6 in) |
| 1995 | 101.4 mm (4.0 in) |
| 1996 | 181.5 mm (7.1 in) |
| 1997 | 115.5 mm (4.5 in) |
| 1998 | 128.3 mm (5.1 in) |
| 1999 | 71.9 mm (2.8 in) |
| 2000 | 68.9 mm (2.7 in) |
| 2001 | 150.6 mm (5.9 in) |
| 2002 | 80.0 mm (3.1 in) |
| 2003 | 159.5 mm (6.3 in) |
| 2004 | 100.2 mm (3.9 in) |
| 2005 | 67.9 mm (2.7 in) |
| 2006 | 73.1 mm (2.9 in) |
| 2007 | 103.2 mm (4.1 in) |
| 2008 | 136.7 mm (5.4 in) |
| 2009 | 151.9 mm (6.0 in) |
| 2010 | 83.8 mm (3.3 in) |
| 2011 | 106.0 mm (4.2 in) |
| 2012 | 55.9 mm (2.2 in) |
| 2013 | 136.4 mm (5.4 in) |
| 2014 | 80.3 mm (3.2 in) |
| 2015 | 145.4 mm (5.7 in) |
| 2016 | 78.7 mm (3.1 in) |
| 2017 | 107.7 mm (4.2 in) |
| 2018 | 137.1 mm (5.4 in) |
| 2019 | 109.2 mm (4.3 in) |
| 2020 | 82.3 mm (3.2 in) |
| 2021 | 129.0 mm (5.1 in) |
| 2022 | 48.5 mm (1.9 in) |
| 2023 | 91.2 mm (3.6 in) |
| 2024 | 128.5 mm (5.1 in) |
| 2025 | 65.0 mm (2.6 in) |
| 2026 | 125.7 mm (4.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1904 | 25 days |
| 1905 | 14 days |
| 1906 | 22 days |
| 1907 | 14 days |
| 1908 | 41 days |
| 1909 | 16 days |
| 1910 | 34 days |
| 1911 | 20 days |
| 1912 | 16 days |
| 1913 | 20 days |
| 1914 | 19 days |
| 1915 | 24 days |
| 1916 | 20 days |
| 1924 | 34 days |
| 1925 | 20 days |
| 1926 | 14 days |
| 1927 | 14 days |
| 1928 | 22 days |
| 1929 | 22 days |
| 1930 | 22 days |
| 1931 | 17 days |
| 1932 | 19 days |
| 1933 | 29 days |
| 1934 | 24 days |
| 1935 | 17 days |
| 1936 | 32 days |
| 1937 | 16 days |
| 1938 | 20 days |
| 1939 | 37 days |
| 1940 | 37 days |
| 1941 | 15 days |
| 1942 | 15 days |
| 1943 | 27 days |
| 1944 | 24 days |
| 1945 | 20 days |
| 1946 | 18 days |
| 1947 | 25 days |
| 1948 | 19 days |
| 1949 | 16 days |
| 1950 | 25 days |
| 1951 | 16 days |
| 1952 | 18 days |
| 1953 | 23 days |
| 1954 | 15 days |
| 1955 | 16 days |
| 1956 | 34 days |
| 1957 | 23 days |
| 1958 | 22 days |
| 1959 | 14 days |
| 1960 | 18 days |
| 1961 | 33 days |
| 1962 | 17 days |
| 1963 | 19 days |
| 1964 | 27 days |
| 1965 | 15 days |
| 1966 | 27 days |
| 1967 | 19 days |
| 1968 | 17 days |
| 1969 | 29 days |
| 1970 | 21 days |
| 1971 | 12 days |
| 1972 | 17 days |
| 1973 | 14 days |
| 1974 | 16 days |
| 1975 | 16 days |
| 1976 | 19 days |
| 1977 | 17 days |
| 1978 | 16 days |
| 1979 | 32 days |
| 1980 | 16 days |
| 1981 | 21 days |
| 1982 | 12 days |
| 1983 | 26 days |
| 1984 | 25 days |
| 1985 | 13 days |
| 1986 | 19 days |
| 1987 | 29 days |
| 1988 | 22 days |
| 1989 | 20 days |
| 1990 | 15 days |
| 1991 | 25 days |
| 1992 | 18 days |
| 1993 | 18 days |
| 1994 | 13 days |
| 1995 | 22 days |
| 1996 | 20 days |
| 1997 | 12 days |
| 1998 | 19 days |
| 1999 | 22 days |
| 2000 | 12 days |
| 2001 | 15 days |
| 2002 | 20 days |
| 2003 | 17 days |
| 2004 | 20 days |
| 2005 | 17 days |
| 2006 | 16 days |
| 2007 | 14 days |
| 2008 | 16 days |
| 2009 | 15 days |
| 2010 | 17 days |
| 2011 | 14 days |
| 2012 | 14 days |
| 2013 | 18 days |
| 2014 | 15 days |
| 2015 | 19 days |
| 2016 | 14 days |
| 2017 | 15 days |
| 2018 | 16 days |
| 2019 | 17 days |
| 2020 | 17 days |
| 2021 | 21 days |
| 2022 | 16 days |
| 2023 | 22 days |
| 2024 | 16 days |
| 2025 | 17 days |
| 2026 | 13 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
102 years with a frostAcross 102 years with a frost, the median last spring frost at Rochester falls on 27 April and the median first autumn frost on 13 October, which leaves a median of 169 days between them.
In 1994 to 2025 the median growing season was 174 days. That is 6 days more than in 1905 to 1950.
Fitted over all years, the growing season changes by +1.4 days per decade at this station.
| Measure | Median, all years | Earliest period (1905 to 1950) | Recent period (1994 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 27 April | 1 May | 24 April | 7 days earlier | -0.7 days per decade |
| First autumn frost | 13 October | 13 October | 18 October | 5 days later | +0.7 days per decade |
| Growing days | 169 days | 168 days | 174 days | 6 days more | +1.4 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, 1906 to 2025A day with at least 62.4 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 141.3 mm (5.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 62.4 mm (2.5 in) | |
| 5 years | 82.8 mm (3.3 in) | |
| 10 years | 96.6 mm (3.8 in) | |
| 25 years | 114.4 mm (4.5 in) | |
| 50 years | 127.8 mm (5.0 in) | |
| 100 years | 141.3 mm (5.6 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 1906 to 2025.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 158.8 mm (6.3 in) in 1990; 119.9 mm (4.7 in) in 1956; 119.4 mm (4.7 in) in 2001.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2009 to 2025 against 1961 to 1990Over 2009 to 2025, Rochester had a mean temperature of 10.7 C (51.2 F) and 974.9 mm (38.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Shelbyville Sewage Plt (United States, 175 km away), Muncie Delaware Co AP (United States, 115 km away) and Salamonia (United States, 136 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Shelbyville Sewage Plt | United States | 175 km (109 mi) | 10.8 C (51.4 F) | 990.4 mm (39.0 in) | 0.44 |
| Muncie Delaware Co AP | United States | 115 km (71 mi) | 10.7 C (51.3 F) | 979.2 mm (38.6 in) | 0.50 |
| Salamonia | United States | 136 km (85 mi) | 10.5 C (50.9 F) | 936.2 mm (36.9 in) | 0.50 |
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 (2026-10-14).