Heppner Weather Records (USC00353827)
Record envelope, standing records and threshold days for Heppner (USC00353827), Oregon, United States, with 134 years of record.
Key Facts for Heppner
- Heppner (USC00353827) is a weather station in Oregon, United States at 45.37 latitude and -119.56 longitude, 575 m (1,885 ft) above sea level.
- The station reports from 1893 to 2026, 134 years of record.
- 1,464 records set at Heppner still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Heppner set a daily record precipitation of 12.7 mm (0.5 in) on 13 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Oregon, United States, 45.37 latitude, -119.56 longitude.
- Elevation: 575 m (1,885 ft).
- Period of record: 1893 to 2026, 134 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
1 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 21.1 C (70.0 F) | -28.3 C (-18.9 F) | n/a | n/a |
| Feb | 23.9 C (75.0 F) | -27.8 C (-18.0 F) | 17.2 C (63.0 F) | -5.0 C (23.0 F) |
| Mar | 27.2 C (81.0 F) | -16.1 C (3.0 F) | 25.6 C (78.1 F) | -3.9 C (25.0 F) |
| Apr | 33.3 C (91.9 F) | -9.4 C (15.1 F) | 22.8 C (73.0 F) | -1.7 C (28.9 F) |
| May | 37.8 C (100.0 F) | -3.9 C (25.0 F) | 28.3 C (82.9 F) | 0.6 C (33.1 F) |
| Jun | 42.8 C (109.0 F) | -0.6 C (30.9 F) | 31.7 C (89.1 F) | 4.4 C (39.9 F) |
| Jul | 42.2 C (108.0 F) | 0.0 C (32.0 F) | 35.6 C (96.1 F) | 5.6 C (42.1 F) |
| Aug | 43.3 C (109.9 F) | 1.7 C (35.1 F) | 35.0 C (95.0 F) | 6.1 C (43.0 F) |
| Sep | 37.2 C (99.0 F) | -7.2 C (19.0 F) | 28.3 C (82.9 F) | 2.8 C (37.0 F) |
| Oct | 33.3 C (91.9 F) | -12.2 C (10.0 F) | 27.8 C (82.0 F) | -0.6 C (30.9 F) |
| Nov | 26.7 C (80.1 F) | -22.8 C (-9.0 F) | n/a | n/a |
| Dec | 23.9 C (75.0 F) | -27.8 C (-18.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 2 |
| 1894 | 2 |
| 1895 | 13 |
| 1896 | 2 |
| 1897 | 10 |
| 1898 | 16 |
| 1899 | 21 |
| 1900 | 2 |
| 1901 | 10 |
| 1902 | 10 |
| 1903 | 7 |
| 1904 | 4 |
| 1905 | 11 |
| 1906 | 26 |
| 1907 | 11 |
| 1908 | 15 |
| 1909 | 23 |
| 1910 | 15 |
| 1911 | 13 |
| 1912 | 11 |
| 1913 | 18 |
| 1914 | 4 |
| 1915 | 8 |
| 1916 | 19 |
| 1917 | 23 |
| 1918 | 15 |
| 1919 | 24 |
| 1920 | 2 |
| 1921 | 11 |
| 1922 | 5 |
| 1923 | 7 |
| 1924 | 17 |
| 1925 | 12 |
| 1926 | 15 |
| 1927 | 8 |
| 1928 | 10 |
| 1929 | 10 |
| 1930 | 23 |
| 1931 | 9 |
| 1932 | 13 |
| 1933 | 19 |
| 1934 | 18 |
| 1935 | 20 |
| 1936 | 26 |
| 1937 | 14 |
| 1938 | 13 |
| 1939 | 13 |
| 1940 | 10 |
| 1941 | 6 |
| 1942 | 5 |
| 1943 | 6 |
| 1944 | 11 |
| 1945 | 4 |
| 1946 | 4 |
| 1947 | 10 |
| 1948 | 14 |
| 1949 | 12 |
| 1950 | 19 |
| 1951 | 6 |
| 1952 | 11 |
| 1953 | 5 |
| 1954 | 13 |
| 1955 | 19 |
| 1956 | 7 |
| 1957 | 12 |
| 1958 | 13 |
| 1959 | 11 |
| 1960 | 17 |
| 1961 | 12 |
| 1962 | 13 |
| 1963 | 14 |
| 1964 | 16 |
| 1965 | 15 |
| 1966 | 8 |
| 1967 | 7 |
| 1968 | 22 |
| 1969 | 8 |
| 1970 | 13 |
| 1971 | 13 |
| 1972 | 24 |
| 1973 | 11 |
| 1974 | 8 |
| 1975 | 9 |
| 1976 | 7 |
| 1977 | 15 |
| 1978 | 11 |
| 1979 | 9 |
| 1980 | 11 |
| 1981 | 6 |
| 1982 | 3 |
| 1983 | 15 |
| 1984 | 5 |
| 1985 | 23 |
| 1986 | 20 |
| 1987 | 20 |
| 1988 | 7 |
| 1989 | 8 |
| 1990 | 13 |
| 1991 | 4 |
| 1992 | 13 |
| 1993 | 9 |
| 1994 | 7 |
| 1995 | 5 |
| 1996 | 6 |
| 1997 | 3 |
| 1998 | 4 |
| 1999 | 10 |
| 2000 | 5 |
| 2001 | 4 |
| 2002 | 10 |
| 2003 | 15 |
| 2004 | 5 |
| 2005 | 7 |
| 2006 | 10 |
| 2007 | 9 |
| 2008 | 5 |
| 2009 | 5 |
| 2010 | 3 |
| 2011 | 6 |
| 2012 | 6 |
| 2013 | 3 |
| 2014 | 10 |
| 2015 | 13 |
| 2016 | 8 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 19 |
| 2020 | 11 |
| 2021 | 15 |
| 2022 | 14 |
| 2023 | 10 |
| 2024 | 5 |
| 2025 | 12 |
| 2026 | 2 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1959-07-23 | Record high minimum temperature | Record high minimum temperature 24.4 C (75.9 F) |
| 1968-12-30 | Record low maximum temperature | Record low maximum temperature -19.4 C (-2.9 F) |
| 2008-12-22 | Record snow depth | Record snow depth 61.0 cm (24.0 in) |
| 2008-12-25 | Record snow depth | Record snow depth 66.0 cm (26.0 in) |
| 2008-12-26 | Record snow depth | Record snow depth 68.6 cm (27.0 in) |
| 2021-06-29 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
Wettest Day of Each Month
Oct: 69.9 mm (2.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 38.1 mm (1.5 in) | 27 January 2024 |
| Feb | 23.1 mm (0.9 in) | 9 February 1942 |
| Mar | 26.2 mm (1.0 in) | 4 March 1983 |
| Apr | 48.5 mm (1.9 in) | 22 April 1988 |
| May | 51.1 mm (2.0 in) | 15 May 2011 |
| Jun | 42.9 mm (1.7 in) | 4 June 1997 |
| Jul | 48.3 mm (1.9 in) | 13 July 1908 |
| Aug | 34.0 mm (1.3 in) | 19 August 1918 |
| Sep | 35.3 mm (1.4 in) | 4 September 1899 |
| Oct | 69.9 mm (2.8 in) | 15 October 1905 |
| Nov | 43.2 mm (1.7 in) | 19 November 1996 |
| Dec | 30.5 mm (1.2 in) | 19 December 1895 |
Period of Record Coverage
1893 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 30 | 8% | No |
| 1894 | 184 | 50% | No |
| 1895 | 257 | 70% | No |
| 1896 | 27 | 7% | No |
| 1897 | 144 | 39% | No |
| 1898 | 358 | 98% | Yes |
| 1899 | 360 | 99% | Yes |
| 1900 | 83 | 23% | No |
| 1901 | 234 | 64% | No |
| 1902 | 361 | 99% | Yes |
| 1903 | 150 | 41% | No |
| 1904 | 212 | 58% | No |
| 1905 | 240 | 66% | No |
| 1906 | 359 | 98% | Yes |
| 1907 | 343 | 94% | Yes |
| 1908 | 345 | 94% | Yes |
| 1909 | 314 | 86% | No |
| 1910 | 355 | 97% | Yes |
| 1911 | 364 | 100% | Yes |
| 1912 | 363 | 99% | Yes |
| 1913 | 361 | 99% | Yes |
| 1914 | 363 | 99% | Yes |
| 1915 | 363 | 99% | Yes |
| 1916 | 365 | 100% | Yes |
| 1917 | 362 | 99% | Yes |
| 1918 | 362 | 99% | Yes |
| 1919 | 359 | 98% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 361 | 99% | Yes |
| 1922 | 363 | 99% | Yes |
| 1923 | 363 | 99% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 363 | 99% | Yes |
| 1926 | 329 | 90% | Yes |
| 1927 | 361 | 99% | Yes |
| 1928 | 364 | 99% | Yes |
| 1929 | 362 | 99% | Yes |
| 1930 | 356 | 98% | Yes |
| 1931 | 357 | 98% | Yes |
| 1932 | 365 | 100% | Yes |
| 1933 | 364 | 100% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 363 | 99% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 362 | 99% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 362 | 99% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 363 | 99% | Yes |
| 1950 | 362 | 99% | Yes |
| 1951 | 361 | 99% | Yes |
| 1952 | 362 | 99% | Yes |
| 1953 | 361 | 99% | Yes |
| 1954 | 362 | 99% | Yes |
| 1955 | 361 | 99% | Yes |
| 1956 | 362 | 99% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 361 | 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 | 365 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 363 | 99% | Yes |
| 1980 | 354 | 97% | Yes |
| 1981 | 322 | 88% | No |
| 1982 | 360 | 99% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 363 | 99% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 364 | 99% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 362 | 99% | Yes |
| 1991 | 357 | 98% | Yes |
| 1992 | 356 | 97% | Yes |
| 1993 | 356 | 98% | Yes |
| 1994 | 360 | 99% | Yes |
| 1995 | 357 | 98% | Yes |
| 1996 | 363 | 99% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 333 | 91% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 364 | 99% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 360 | 99% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 361 | 99% | Yes |
| 2005 | 330 | 90% | Yes |
| 2006 | 335 | 92% | Yes |
| 2007 | 363 | 99% | Yes |
| 2008 | 293 | 80% | No |
| 2009 | 364 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 362 | 99% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 307 | 84% | No |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 363 | 99% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 363 | 99% | Yes |
| 2023 | 360 | 99% | Yes |
| 2024 | 355 | 97% | Yes |
| 2025 | 307 | 84% | No |
| 2026 | 250 | 68% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 13 September 2026 | Heppner, US | daily rain (Provisional) | 12.7 mm (0.5 in) | 0.8 mm (0.03 in) | 63 years | 20 of 100 (Routine) |
| 20 March 2026 | Heppner, US | daily high max | 25.6 C (78.1 F) | 2.8 C (5.0 F) | 1 year | 16 of 100 (Routine) |
| 19 March 2026 | Heppner, US | daily high min | 12.2 C (54.0 F) | 0.5 C (0.9 F) | 28 years | 19 of 100 (Routine) |
| 15 December 2025 | Heppner, US | daily high min | 7.8 C (46.0 F) | 1.1 C (2.0 F) | 44 years | 25 of 100 (Routine) |
| 14 December 2025 | Heppner, US | daily high max | 20.0 C (68.0 F) | 2.2 C (4.0 F) | 100 years | 43 of 100 (Notable) |
| 11 December 2025 | Heppner, US | daily high min | 11.7 C (53.1 F) | 1.1 C (2.0 F) | 104 years | 42 of 100 (Notable) |
| 7 December 2025 | Heppner, US | daily high min | 5.6 C (42.1 F) | 0.6 C (1.1 F) | 127 years | 41 of 100 (Notable) |
| 30 November 2025 | Heppner, US | daily snowfall | 5.1 cm (2.0 in) | 2.6 cm (1.0 in) | 96 years | 44 of 100 (Notable) |
| 27 August 2025 | Heppner, US | daily high min | 20.6 C (69.1 F) | 0.6 C (1.1 F) | 58 years | 28 of 100 (Routine) |
| 26 August 2025 | Heppner, US | daily high min | 20.6 C (69.1 F) | 2.3 C (4.1 F) | 87 years | 43 of 100 (Notable) |
| 25 August 2025 | Heppner, US | daily high min | 20.0 C (68.0 F) | 3.3 C (5.9 F) | 99 years | 49 of 100 (Notable) |
| 11 June 2025 | Heppner, US | daily high max | 36.7 C (98.1 F) | 2.3 C (4.1 F) | 114 years | 44 of 100 (Notable) |
| 11 June 2025 | Heppner, US | daily high min | 15.6 C (60.1 F) | 1.2 C (2.2 F) | 119 years | 43 of 100 (Notable) |
| 10 June 2025 | Heppner, US | daily high max | 36.7 C (98.1 F) | 1.7 C (3.1 F) | 115 years | 43 of 100 (Notable) |
| 10 June 2025 | Heppner, US | daily high min | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 10 years | 16 of 100 (Routine) |
| 27 March 2025 | Heppner, US | monthly high max | 27.2 C (81.0 F) | 0.5 C (0.9 F) | 21 years | 27 of 100 (Routine) |
| 26 December 2024 | Heppner, US | daily rain | 11.9 mm (0.5 in) | 1.2 mm (0.05 in) | 91 years | 20 of 100 (Routine) |
| 24 December 2024 | Heppner, US | daily rain | 15.5 mm (0.6 in) | 0.3 mm (0.01 in) | 60 years | 20 of 100 (Routine) |
| 4 August 2024 | Heppner, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 63 years | 7 of 100 (Routine) |
| 3 August 2024 | Heppner, US | daily high min | 20.0 C (68.0 F) | 0.6 C (1.1 F) | 128 years | 41 of 100 (Notable) |
Climate Trend
112 complete years, 1898 to 2024| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1898 | 9.4 C | -0.89 C |
| 1899 | 9.5 C | -0.76 C |
| 1902 | 10.3 C | +0.02 C |
| 1906 | 11.3 C | +0.96 C |
| 1907 | 9.8 C | -0.51 C |
| 1910 | 10.1 C | -0.23 C |
| 1911 | 9.6 C | -0.66 C |
| 1912 | 9.5 C | -0.78 C |
| 1913 | 9.4 C | -0.94 C |
| 1914 | 10.5 C | +0.19 C |
| 1915 | 10.6 C | +0.31 C |
| 1916 | 8.2 C | -2.10 C |
| 1917 | 10.3 C | +0.01 C |
| 1918 | 10.8 C | +0.45 C |
| 1919 | 9.6 C | -0.74 C |
| 1920 | 9.5 C | -0.84 C |
| 1921 | 10.2 C | -0.13 C |
| 1922 | 9.5 C | -0.85 C |
| 1923 | 10.2 C | -0.14 C |
| 1924 | 10.0 C | -0.33 C |
| 1925 | 11.5 C | +1.16 C |
| 1927 | 9.9 C | -0.40 C |
| 1928 | 10.2 C | -0.15 C |
| 1929 | 9.4 C | -0.91 C |
| 1930 | 9.4 C | -0.86 C |
| 1931 | 10.2 C | -0.08 C |
| 1932 | 9.9 C | -0.38 C |
| 1933 | 10.3 C | -0.01 C |
| 1934 | 12.1 C | +1.78 C |
| 1935 | 9.7 C | -0.62 C |
| 1936 | 10.2 C | -0.14 C |
| 1937 | 9.5 C | -0.81 C |
| 1938 | 10.1 C | -0.24 C |
| 1939 | 11.2 C | +0.90 C |
| 1940 | 10.5 C | +0.18 C |
| 1941 | 10.7 C | +0.40 C |
| 1942 | 9.7 C | -0.58 C |
| 1943 | 9.1 C | -1.23 C |
| 1944 | 9.8 C | -0.55 C |
| 1945 | 10.0 C | -0.26 C |
| 1946 | 10.2 C | -0.10 C |
| 1947 | 10.8 C | +0.50 C |
| 1948 | 8.7 C | -1.57 C |
| 1949 | 9.0 C | -1.31 C |
| 1950 | 9.4 C | -0.87 C |
| 1951 | 9.5 C | -0.80 C |
| 1952 | 9.8 C | -0.51 C |
| 1953 | 10.7 C | +0.44 C |
| 1954 | 9.4 C | -0.92 C |
| 1955 | 9.0 C | -1.31 C |
| 1956 | 9.9 C | -0.37 C |
| 1957 | 9.7 C | -0.63 C |
| 1958 | 11.7 C | +1.39 C |
| 1959 | 9.9 C | -0.36 C |
| 1960 | 10.1 C | -0.22 C |
| 1961 | 11.0 C | +0.67 C |
| 1962 | 10.0 C | -0.28 C |
| 1963 | 10.3 C | +0.00 C |
| 1964 | 9.8 C | -0.53 C |
| 1965 | 10.6 C | +0.26 C |
| 1966 | 11.0 C | +0.71 C |
| 1967 | 11.5 C | +1.18 C |
| 1968 | 10.7 C | +0.43 C |
| 1969 | 9.8 C | -0.55 C |
| 1970 | 10.3 C | -0.04 C |
| 1971 | 10.4 C | +0.09 C |
| 1972 | 10.0 C | -0.29 C |
| 1973 | 10.6 C | +0.32 C |
| 1974 | 10.7 C | +0.40 C |
| 1975 | 10.1 C | -0.22 C |
| 1976 | 10.2 C | -0.09 C |
| 1977 | 10.4 C | +0.08 C |
| 1978 | 9.8 C | -0.46 C |
| 1979 | 10.2 C | -0.13 C |
| 1982 | 9.8 C | -0.47 C |
| 1983 | 10.5 C | +0.22 C |
| 1984 | 9.8 C | -0.49 C |
| 1985 | 8.6 C | -1.69 C |
| 1986 | 10.7 C | +0.41 C |
| 1987 | 11.1 C | +0.79 C |
| 1988 | 11.0 C | +0.74 C |
| 1989 | 10.2 C | -0.11 C |
| 1990 | 11.2 C | +0.85 C |
| 1991 | 10.9 C | +0.57 C |
| 1992 | 11.6 C | +1.31 C |
| 1993 | 9.3 C | -1.02 C |
| 1994 | 11.4 C | +1.13 C |
| 1995 | 11.1 C | +0.78 C |
| 1996 | 10.7 C | +0.42 C |
| 1997 | 11.1 C | +0.75 C |
| 1999 | 11.1 C | +0.79 C |
| 2000 | 10.4 C | +0.09 C |
| 2001 | 11.0 C | +0.65 C |
| 2002 | 11.2 C | +0.91 C |
| 2003 | 11.8 C | +1.51 C |
| 2004 | 11.5 C | +1.17 C |
| 2007 | 10.5 C | +0.24 C |
| 2009 | 10.2 C | -0.12 C |
| 2010 | 10.6 C | +0.26 C |
| 2011 | 10.2 C | -0.13 C |
| 2012 | 11.0 C | +0.68 C |
| 2013 | 10.5 C | +0.22 C |
| 2014 | 11.2 C | +0.85 C |
| 2016 | 11.4 C | +1.06 C |
| 2017 | 10.3 C | +0.04 C |
| 2018 | 11.1 C | +0.76 C |
| 2019 | 9.5 C | -0.82 C |
| 2020 | 11.2 C | +0.91 C |
| 2021 | 11.6 C | +1.27 C |
| 2022 | 10.3 C | +0.02 C |
| 2023 | 10.8 C | +0.47 C |
| 2024 | 10.9 C | +0.61 C |
The annual mean temperature here has risen by 0.1 C (0.1 to 0.1) per decade over 1898 to 2024. In Fahrenheit: 0.2 F (0.1 to 0.2) per decade. The slope is a straight line fitted to 112 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 0.1) per decade | 0.2 F (0.1 to 0.2) per decade | 1898 to 2024 | 112 | Rise |
| Mean daily maximum | 0.08 C (0.04 to 0.12) per decade | 0.1 F (0.1 to 0.2) per decade | 1898 to 2024 | 112 | Rise |
| Mean daily minimum | 0.1 C (0.1 to 0.1) per decade | 0.2 F (0.1 to 0.2) per decade | 1898 to 2024 | 112 | 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
1893 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.3 C (109.9 F) | 1898 | 37.5 C (99.5 F) | 134 |
| Coldest night (TNn) | -28.3 C (-18.9 F) | 1909 | -17.2 C (1.0 F) | 134 |
| Wettest day (Rx1day) | 69.9 mm (2.8 in) | 1905 | 21.1 mm (0.8 in) | 134 |
| Wettest five days (Rx5day) | 75.7 mm (3.0 in) | 1957 | 36.5 mm (1.4 in) | 134 |
| Longest dry spell (CDD) | 120 days | 1932 | 43 days | 134 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 19.4 C (66.9 F) |
| 1894 | 37.2 C (99.0 F) |
| 1895 | 35.0 C (95.0 F) |
| 1896 | 16.1 C (61.0 F) |
| 1897 | 42.2 C (108.0 F) |
| 1898 | 43.3 C (109.9 F) |
| 1899 | 37.2 C (99.0 F) |
| 1900 | 21.7 C (71.1 F) |
| 1901 | 37.2 C (99.0 F) |
| 1902 | 39.4 C (102.9 F) |
| 1903 | 37.8 C (100.0 F) |
| 1904 | 36.7 C (98.1 F) |
| 1905 | 41.7 C (107.1 F) |
| 1906 | 40.6 C (105.1 F) |
| 1907 | 36.1 C (97.0 F) |
| 1908 | 38.9 C (102.0 F) |
| 1909 | 36.7 C (98.1 F) |
| 1910 | 36.1 C (97.0 F) |
| 1911 | 39.4 C (102.9 F) |
| 1912 | 35.6 C (96.1 F) |
| 1913 | 37.2 C (99.0 F) |
| 1914 | 37.8 C (100.0 F) |
| 1915 | 38.9 C (102.0 F) |
| 1916 | 35.0 C (95.0 F) |
| 1917 | 36.7 C (98.1 F) |
| 1918 | 37.8 C (100.0 F) |
| 1919 | 38.9 C (102.0 F) |
| 1920 | 37.2 C (99.0 F) |
| 1921 | 36.7 C (98.1 F) |
| 1922 | 40.0 C (104.0 F) |
| 1923 | 37.2 C (99.0 F) |
| 1924 | 36.7 C (98.1 F) |
| 1925 | 37.2 C (99.0 F) |
| 1926 | 40.6 C (105.1 F) |
| 1927 | 37.2 C (99.0 F) |
| 1928 | 42.2 C (108.0 F) |
| 1929 | 37.2 C (99.0 F) |
| 1930 | 35.0 C (95.0 F) |
| 1931 | 37.2 C (99.0 F) |
| 1932 | 34.4 C (93.9 F) |
| 1933 | 37.2 C (99.0 F) |
| 1934 | 36.7 C (98.1 F) |
| 1935 | 39.4 C (102.9 F) |
| 1936 | 36.7 C (98.1 F) |
| 1937 | 36.1 C (97.0 F) |
| 1938 | 38.9 C (102.0 F) |
| 1939 | 41.7 C (107.1 F) |
| 1940 | 34.4 C (93.9 F) |
| 1941 | 40.0 C (104.0 F) |
| 1942 | 38.9 C (102.0 F) |
| 1943 | 35.6 C (96.1 F) |
| 1944 | 36.1 C (97.0 F) |
| 1945 | 35.0 C (95.0 F) |
| 1946 | 37.8 C (100.0 F) |
| 1947 | 33.9 C (93.0 F) |
| 1948 | 35.6 C (96.1 F) |
| 1949 | 35.6 C (96.1 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 36.1 C (97.0 F) |
| 1952 | 36.1 C (97.0 F) |
| 1953 | 36.7 C (98.1 F) |
| 1954 | 34.4 C (93.9 F) |
| 1955 | 37.8 C (100.0 F) |
| 1956 | 36.7 C (98.1 F) |
| 1957 | 33.3 C (91.9 F) |
| 1958 | 37.8 C (100.0 F) |
| 1959 | 38.3 C (100.9 F) |
| 1960 | 39.4 C (102.9 F) |
| 1961 | 41.7 C (107.1 F) |
| 1962 | 37.2 C (99.0 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 37.2 C (99.0 F) |
| 1965 | 37.8 C (100.0 F) |
| 1966 | 36.1 C (97.0 F) |
| 1967 | 38.9 C (102.0 F) |
| 1968 | 39.4 C (102.9 F) |
| 1969 | 35.6 C (96.1 F) |
| 1970 | 37.8 C (100.0 F) |
| 1971 | 39.4 C (102.9 F) |
| 1972 | 40.6 C (105.1 F) |
| 1973 | 37.8 C (100.0 F) |
| 1974 | 37.2 C (99.0 F) |
| 1975 | 38.9 C (102.0 F) |
| 1976 | 35.6 C (96.1 F) |
| 1977 | 38.9 C (102.0 F) |
| 1978 | 38.9 C (102.0 F) |
| 1979 | 38.9 C (102.0 F) |
| 1980 | 36.7 C (98.1 F) |
| 1981 | 38.3 C (100.9 F) |
| 1982 | 37.8 C (100.0 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 37.2 C (99.0 F) |
| 1986 | 38.9 C (102.0 F) |
| 1987 | 37.8 C (100.0 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 36.1 C (97.0 F) |
| 1990 | 39.4 C (102.9 F) |
| 1991 | 37.2 C (99.0 F) |
| 1992 | 40.0 C (104.0 F) |
| 1993 | 35.0 C (95.0 F) |
| 1994 | 40.0 C (104.0 F) |
| 1995 | 36.7 C (98.1 F) |
| 1996 | 39.4 C (102.9 F) |
| 1997 | 37.8 C (100.0 F) |
| 1998 | 42.2 C (108.0 F) |
| 1999 | 37.8 C (100.0 F) |
| 2000 | 37.2 C (99.0 F) |
| 2001 | 37.8 C (100.0 F) |
| 2002 | 41.1 C (106.0 F) |
| 2003 | 40.6 C (105.1 F) |
| 2004 | 37.2 C (99.0 F) |
| 2005 | 36.7 C (98.1 F) |
| 2006 | 40.6 C (105.1 F) |
| 2007 | 38.9 C (102.0 F) |
| 2008 | 37.8 C (100.0 F) |
| 2009 | 40.6 C (105.1 F) |
| 2010 | 36.7 C (98.1 F) |
| 2011 | 34.4 C (93.9 F) |
| 2012 | 36.7 C (98.1 F) |
| 2013 | 38.3 C (100.9 F) |
| 2014 | 38.3 C (100.9 F) |
| 2015 | 40.0 C (104.0 F) |
| 2016 | 37.2 C (99.0 F) |
| 2017 | 37.2 C (99.0 F) |
| 2018 | 38.3 C (100.9 F) |
| 2019 | 35.0 C (95.0 F) |
| 2020 | 37.8 C (100.0 F) |
| 2021 | 42.8 C (109.0 F) |
| 2022 | 40.6 C (105.1 F) |
| 2023 | 38.3 C (100.9 F) |
| 2024 | 40.0 C (104.0 F) |
| 2025 | 36.7 C (98.1 F) |
| 2026 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -1.1 C (30.0 F) |
| 1894 | -15.0 C (5.0 F) |
| 1895 | -13.9 C (7.0 F) |
| 1896 | -10.6 C (12.9 F) |
| 1897 | -12.8 C (9.0 F) |
| 1898 | -20.6 C (-5.1 F) |
| 1899 | -25.0 C (-13.0 F) |
| 1900 | -17.2 C (1.0 F) |
| 1901 | -11.1 C (12.0 F) |
| 1902 | -26.7 C (-16.1 F) |
| 1903 | -11.1 C (12.0 F) |
| 1904 | -7.8 C (18.0 F) |
| 1905 | -6.1 C (21.0 F) |
| 1906 | -16.1 C (3.0 F) |
| 1907 | -21.7 C (-7.1 F) |
| 1908 | -16.7 C (1.9 F) |
| 1909 | -28.3 C (-18.9 F) |
| 1910 | -18.9 C (-2.0 F) |
| 1911 | -16.1 C (3.0 F) |
| 1912 | -17.8 C (0.0 F) |
| 1913 | -13.9 C (7.0 F) |
| 1914 | -15.6 C (3.9 F) |
| 1915 | -13.9 C (7.0 F) |
| 1916 | -23.3 C (-9.9 F) |
| 1917 | -14.4 C (6.1 F) |
| 1918 | -21.7 C (-7.1 F) |
| 1919 | -27.8 C (-18.0 F) |
| 1920 | -16.7 C (1.9 F) |
| 1921 | -15.0 C (5.0 F) |
| 1922 | -25.0 C (-13.0 F) |
| 1923 | -17.8 C (0.0 F) |
| 1924 | -23.3 C (-9.9 F) |
| 1925 | -9.4 C (15.1 F) |
| 1926 | -20.6 C (-5.1 F) |
| 1927 | -25.0 C (-13.0 F) |
| 1928 | -17.2 C (1.0 F) |
| 1929 | -24.4 C (-11.9 F) |
| 1930 | -27.8 C (-18.0 F) |
| 1931 | -16.7 C (1.9 F) |
| 1932 | -23.3 C (-9.9 F) |
| 1933 | -27.8 C (-18.0 F) |
| 1934 | -6.1 C (21.0 F) |
| 1935 | -20.6 C (-5.1 F) |
| 1936 | -21.7 C (-7.1 F) |
| 1937 | -25.6 C (-14.1 F) |
| 1938 | -12.8 C (9.0 F) |
| 1939 | -20.0 C (-4.0 F) |
| 1940 | -12.8 C (9.0 F) |
| 1941 | -16.7 C (1.9 F) |
| 1942 | -21.7 C (-7.1 F) |
| 1943 | -25.0 C (-13.0 F) |
| 1944 | -12.2 C (10.0 F) |
| 1945 | -17.2 C (1.0 F) |
| 1946 | -12.2 C (10.0 F) |
| 1947 | -16.7 C (1.9 F) |
| 1948 | -17.8 C (0.0 F) |
| 1949 | -23.9 C (-11.0 F) |
| 1950 | -27.8 C (-18.0 F) |
| 1951 | -20.0 C (-4.0 F) |
| 1952 | -17.2 C (1.0 F) |
| 1953 | -8.9 C (16.0 F) |
| 1954 | -20.0 C (-4.0 F) |
| 1955 | -22.2 C (-8.0 F) |
| 1956 | -22.2 C (-8.0 F) |
| 1957 | -26.1 C (-15.0 F) |
| 1958 | -12.2 C (10.0 F) |
| 1959 | -20.6 C (-5.1 F) |
| 1960 | -15.6 C (3.9 F) |
| 1961 | -18.9 C (-2.0 F) |
| 1962 | -23.9 C (-11.0 F) |
| 1963 | -23.9 C (-11.0 F) |
| 1964 | -26.1 C (-15.0 F) |
| 1965 | -10.6 C (12.9 F) |
| 1966 | -8.3 C (17.1 F) |
| 1967 | -15.6 C (3.9 F) |
| 1968 | -22.2 C (-8.0 F) |
| 1969 | -22.2 C (-8.0 F) |
| 1970 | -15.6 C (3.9 F) |
| 1971 | -11.7 C (10.9 F) |
| 1972 | -26.1 C (-15.0 F) |
| 1973 | -20.6 C (-5.1 F) |
| 1974 | -24.4 C (-11.9 F) |
| 1975 | -11.1 C (12.0 F) |
| 1976 | -17.2 C (1.0 F) |
| 1977 | -20.0 C (-4.0 F) |
| 1978 | -23.3 C (-9.9 F) |
| 1979 | -24.4 C (-11.9 F) |
| 1980 | -22.2 C (-8.0 F) |
| 1981 | -15.0 C (5.0 F) |
| 1982 | -16.7 C (1.9 F) |
| 1983 | -25.6 C (-14.1 F) |
| 1984 | -18.9 C (-2.0 F) |
| 1985 | -22.8 C (-9.0 F) |
| 1986 | -10.6 C (12.9 F) |
| 1987 | -15.0 C (5.0 F) |
| 1988 | -15.0 C (5.0 F) |
| 1989 | -26.1 C (-15.0 F) |
| 1990 | -26.1 C (-15.0 F) |
| 1991 | -12.2 C (10.0 F) |
| 1992 | -13.3 C (8.1 F) |
| 1993 | -18.9 C (-2.0 F) |
| 1994 | -18.3 C (-0.9 F) |
| 1995 | -14.4 C (6.1 F) |
| 1996 | -23.9 C (-11.0 F) |
| 1997 | -13.9 C (7.0 F) |
| 1998 | -18.9 C (-2.0 F) |
| 1999 | -7.8 C (18.0 F) |
| 2000 | -10.0 C (14.0 F) |
| 2001 | -9.4 C (15.1 F) |
| 2002 | -12.2 C (10.0 F) |
| 2003 | -13.9 C (7.0 F) |
| 2004 | -21.7 C (-7.1 F) |
| 2005 | -12.2 C (10.0 F) |
| 2006 | -14.4 C (6.1 F) |
| 2007 | -17.2 C (1.0 F) |
| 2008 | -20.6 C (-5.1 F) |
| 2009 | -17.2 C (1.0 F) |
| 2010 | -17.8 C (0.0 F) |
| 2011 | -15.6 C (3.9 F) |
| 2012 | -10.6 C (12.9 F) |
| 2013 | -21.1 C (-6.0 F) |
| 2014 | -17.8 C (0.0 F) |
| 2015 | -15.0 C (5.0 F) |
| 2016 | -16.7 C (1.9 F) |
| 2017 | -18.9 C (-2.0 F) |
| 2018 | -13.9 C (7.0 F) |
| 2019 | -14.4 C (6.1 F) |
| 2020 | -10.0 C (14.0 F) |
| 2021 | -14.4 C (6.1 F) |
| 2022 | -17.8 C (0.0 F) |
| 2023 | -16.1 C (3.0 F) |
| 2024 | -20.0 C (-4.0 F) |
| 2025 | -14.4 C (6.1 F) |
| 2026 | -5.0 C (23.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 11.4 mm (0.4 in) |
| 1894 | 18.0 mm (0.7 in) |
| 1895 | 30.5 mm (1.2 in) |
| 1896 | 15.2 mm (0.6 in) |
| 1897 | 17.3 mm (0.7 in) |
| 1898 | 22.1 mm (0.9 in) |
| 1899 | 35.3 mm (1.4 in) |
| 1900 | 14.2 mm (0.6 in) |
| 1901 | 16.5 mm (0.6 in) |
| 1902 | 16.3 mm (0.6 in) |
| 1903 | 11.7 mm (0.5 in) |
| 1904 | 34.3 mm (1.4 in) |
| 1905 | 69.9 mm (2.8 in) |
| 1906 | 37.3 mm (1.5 in) |
| 1907 | 16.8 mm (0.7 in) |
| 1908 | 48.3 mm (1.9 in) |
| 1909 | 16.0 mm (0.6 in) |
| 1910 | 23.6 mm (0.9 in) |
| 1911 | 17.3 mm (0.7 in) |
| 1912 | 33.5 mm (1.3 in) |
| 1913 | 33.5 mm (1.3 in) |
| 1914 | 21.1 mm (0.8 in) |
| 1915 | 20.3 mm (0.8 in) |
| 1916 | 36.8 mm (1.4 in) |
| 1917 | 20.1 mm (0.8 in) |
| 1918 | 48.3 mm (1.9 in) |
| 1919 | 22.6 mm (0.9 in) |
| 1920 | 27.9 mm (1.1 in) |
| 1921 | 42.2 mm (1.7 in) |
| 1922 | 25.9 mm (1.0 in) |
| 1923 | 28.4 mm (1.1 in) |
| 1924 | 17.0 mm (0.7 in) |
| 1925 | 21.6 mm (0.9 in) |
| 1926 | 21.8 mm (0.9 in) |
| 1927 | 26.2 mm (1.0 in) |
| 1928 | 29.2 mm (1.1 in) |
| 1929 | 18.5 mm (0.7 in) |
| 1930 | 22.6 mm (0.9 in) |
| 1931 | 12.4 mm (0.5 in) |
| 1932 | 16.5 mm (0.6 in) |
| 1933 | 31.2 mm (1.2 in) |
| 1934 | 16.8 mm (0.7 in) |
| 1935 | 22.9 mm (0.9 in) |
| 1936 | 17.3 mm (0.7 in) |
| 1937 | 21.1 mm (0.8 in) |
| 1938 | 20.3 mm (0.8 in) |
| 1939 | 12.4 mm (0.5 in) |
| 1940 | 23.1 mm (0.9 in) |
| 1941 | 22.4 mm (0.9 in) |
| 1942 | 24.9 mm (1.0 in) |
| 1943 | 21.1 mm (0.8 in) |
| 1944 | 15.5 mm (0.6 in) |
| 1945 | 17.0 mm (0.7 in) |
| 1946 | 15.0 mm (0.6 in) |
| 1947 | 23.6 mm (0.9 in) |
| 1948 | 19.6 mm (0.8 in) |
| 1949 | 29.7 mm (1.2 in) |
| 1950 | 30.0 mm (1.2 in) |
| 1951 | 18.5 mm (0.7 in) |
| 1952 | 20.3 mm (0.8 in) |
| 1953 | 23.6 mm (0.9 in) |
| 1954 | 22.9 mm (0.9 in) |
| 1955 | 21.1 mm (0.8 in) |
| 1956 | 27.2 mm (1.1 in) |
| 1957 | 52.1 mm (2.1 in) |
| 1958 | 20.1 mm (0.8 in) |
| 1959 | 20.3 mm (0.8 in) |
| 1960 | 19.1 mm (0.8 in) |
| 1961 | 17.8 mm (0.7 in) |
| 1962 | 18.5 mm (0.7 in) |
| 1963 | 26.7 mm (1.1 in) |
| 1964 | 16.8 mm (0.7 in) |
| 1965 | 22.6 mm (0.9 in) |
| 1966 | 30.2 mm (1.2 in) |
| 1967 | 13.5 mm (0.5 in) |
| 1968 | 21.3 mm (0.8 in) |
| 1969 | 24.1 mm (0.9 in) |
| 1970 | 18.5 mm (0.7 in) |
| 1971 | 23.4 mm (0.9 in) |
| 1972 | 39.6 mm (1.6 in) |
| 1973 | 19.6 mm (0.8 in) |
| 1974 | 15.7 mm (0.6 in) |
| 1975 | 21.8 mm (0.9 in) |
| 1976 | 18.0 mm (0.7 in) |
| 1977 | 17.3 mm (0.7 in) |
| 1978 | 32.3 mm (1.3 in) |
| 1979 | 21.1 mm (0.8 in) |
| 1980 | 26.9 mm (1.1 in) |
| 1981 | 45.2 mm (1.8 in) |
| 1982 | 32.0 mm (1.3 in) |
| 1983 | 26.2 mm (1.0 in) |
| 1984 | 23.4 mm (0.9 in) |
| 1985 | 38.4 mm (1.5 in) |
| 1986 | 15.5 mm (0.6 in) |
| 1987 | 23.4 mm (0.9 in) |
| 1988 | 48.5 mm (1.9 in) |
| 1989 | 23.4 mm (0.9 in) |
| 1990 | 15.2 mm (0.6 in) |
| 1991 | 20.1 mm (0.8 in) |
| 1992 | 21.6 mm (0.9 in) |
| 1993 | 21.6 mm (0.9 in) |
| 1994 | 31.2 mm (1.2 in) |
| 1995 | 19.6 mm (0.8 in) |
| 1996 | 43.2 mm (1.7 in) |
| 1997 | 42.9 mm (1.7 in) |
| 1998 | 18.3 mm (0.7 in) |
| 1999 | 16.5 mm (0.6 in) |
| 2000 | 21.6 mm (0.9 in) |
| 2001 | 16.3 mm (0.6 in) |
| 2002 | 16.3 mm (0.6 in) |
| 2003 | 15.7 mm (0.6 in) |
| 2004 | 18.3 mm (0.7 in) |
| 2005 | 15.7 mm (0.6 in) |
| 2006 | 20.3 mm (0.8 in) |
| 2007 | 30.7 mm (1.2 in) |
| 2008 | 28.4 mm (1.1 in) |
| 2009 | 18.3 mm (0.7 in) |
| 2010 | 20.3 mm (0.8 in) |
| 2011 | 51.1 mm (2.0 in) |
| 2012 | 27.9 mm (1.1 in) |
| 2013 | 13.5 mm (0.5 in) |
| 2014 | 23.4 mm (0.9 in) |
| 2015 | 16.0 mm (0.6 in) |
| 2016 | 18.8 mm (0.7 in) |
| 2017 | 15.2 mm (0.6 in) |
| 2018 | 29.2 mm (1.1 in) |
| 2019 | 15.7 mm (0.6 in) |
| 2020 | 21.1 mm (0.8 in) |
| 2021 | 15.7 mm (0.6 in) |
| 2022 | 27.9 mm (1.1 in) |
| 2023 | 15.7 mm (0.6 in) |
| 2024 | 38.1 mm (1.5 in) |
| 2025 | 14.5 mm (0.6 in) |
| 2026 | 17.0 mm (0.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 25.2 mm (1.0 in) |
| 1894 | 22.4 mm (0.9 in) |
| 1895 | 33.8 mm (1.3 in) |
| 1896 | 27.9 mm (1.1 in) |
| 1897 | 35.8 mm (1.4 in) |
| 1898 | 32.2 mm (1.3 in) |
| 1899 | 44.5 mm (1.8 in) |
| 1900 | 23.3 mm (0.9 in) |
| 1901 | 27.4 mm (1.1 in) |
| 1902 | 34.1 mm (1.3 in) |
| 1903 | 16.8 mm (0.7 in) |
| 1904 | 40.4 mm (1.6 in) |
| 1905 | 70.4 mm (2.8 in) |
| 1906 | 56.9 mm (2.2 in) |
| 1907 | 28.2 mm (1.1 in) |
| 1908 | 55.6 mm (2.2 in) |
| 1909 | 38.8 mm (1.5 in) |
| 1910 | 27.7 mm (1.1 in) |
| 1911 | 32.1 mm (1.3 in) |
| 1912 | 44.0 mm (1.7 in) |
| 1913 | 48.8 mm (1.9 in) |
| 1914 | 31.7 mm (1.2 in) |
| 1915 | 32.1 mm (1.3 in) |
| 1916 | 64.5 mm (2.5 in) |
| 1917 | 41.2 mm (1.6 in) |
| 1918 | 48.3 mm (1.9 in) |
| 1919 | 50.5 mm (2.0 in) |
| 1920 | 41.2 mm (1.6 in) |
| 1921 | 63.6 mm (2.5 in) |
| 1922 | 34.6 mm (1.4 in) |
| 1923 | 40.4 mm (1.6 in) |
| 1924 | 32.6 mm (1.3 in) |
| 1925 | 33.8 mm (1.3 in) |
| 1926 | 24.9 mm (1.0 in) |
| 1927 | 41.1 mm (1.6 in) |
| 1928 | 30.5 mm (1.2 in) |
| 1929 | 30.4 mm (1.2 in) |
| 1930 | 27.5 mm (1.1 in) |
| 1931 | 19.6 mm (0.8 in) |
| 1932 | 22.7 mm (0.9 in) |
| 1933 | 53.0 mm (2.1 in) |
| 1934 | 24.1 mm (0.9 in) |
| 1935 | 26.5 mm (1.0 in) |
| 1936 | 25.1 mm (1.0 in) |
| 1937 | 30.7 mm (1.2 in) |
| 1938 | 42.9 mm (1.7 in) |
| 1939 | 21.6 mm (0.9 in) |
| 1940 | 28.5 mm (1.1 in) |
| 1941 | 38.2 mm (1.5 in) |
| 1942 | 45.6 mm (1.8 in) |
| 1943 | 36.8 mm (1.4 in) |
| 1944 | 23.6 mm (0.9 in) |
| 1945 | 44.7 mm (1.8 in) |
| 1946 | 40.4 mm (1.6 in) |
| 1947 | 44.2 mm (1.7 in) |
| 1948 | 45.5 mm (1.8 in) |
| 1949 | 43.9 mm (1.7 in) |
| 1950 | 46.5 mm (1.8 in) |
| 1951 | 25.4 mm (1.0 in) |
| 1952 | 27.7 mm (1.1 in) |
| 1953 | 30.5 mm (1.2 in) |
| 1954 | 50.6 mm (2.0 in) |
| 1955 | 40.4 mm (1.6 in) |
| 1956 | 41.2 mm (1.6 in) |
| 1957 | 75.7 mm (3.0 in) |
| 1958 | 32.1 mm (1.3 in) |
| 1959 | 27.7 mm (1.1 in) |
| 1960 | 32.7 mm (1.3 in) |
| 1961 | 30.7 mm (1.2 in) |
| 1962 | 43.9 mm (1.7 in) |
| 1963 | 63.7 mm (2.5 in) |
| 1964 | 72.3 mm (2.8 in) |
| 1965 | 43.0 mm (1.7 in) |
| 1966 | 36.8 mm (1.4 in) |
| 1967 | 24.9 mm (1.0 in) |
| 1968 | 34.2 mm (1.3 in) |
| 1969 | 41.9 mm (1.6 in) |
| 1970 | 42.1 mm (1.7 in) |
| 1971 | 34.8 mm (1.4 in) |
| 1972 | 40.7 mm (1.6 in) |
| 1973 | 39.6 mm (1.6 in) |
| 1974 | 37.6 mm (1.5 in) |
| 1975 | 42.4 mm (1.7 in) |
| 1976 | 35.1 mm (1.4 in) |
| 1977 | 33.9 mm (1.3 in) |
| 1978 | 40.2 mm (1.6 in) |
| 1979 | 41.9 mm (1.6 in) |
| 1980 | 32.5 mm (1.3 in) |
| 1981 | 55.1 mm (2.2 in) |
| 1982 | 38.4 mm (1.5 in) |
| 1983 | 47.2 mm (1.9 in) |
| 1984 | 43.2 mm (1.7 in) |
| 1985 | 39.7 mm (1.6 in) |
| 1986 | 26.4 mm (1.0 in) |
| 1987 | 36.6 mm (1.4 in) |
| 1988 | 74.9 mm (2.9 in) |
| 1989 | 51.9 mm (2.0 in) |
| 1990 | 28.0 mm (1.1 in) |
| 1991 | 26.7 mm (1.1 in) |
| 1992 | 39.7 mm (1.6 in) |
| 1993 | 36.9 mm (1.5 in) |
| 1994 | 62.6 mm (2.5 in) |
| 1995 | 42.7 mm (1.7 in) |
| 1996 | 66.9 mm (2.6 in) |
| 1997 | 59.7 mm (2.4 in) |
| 1998 | 32.5 mm (1.3 in) |
| 1999 | 29.9 mm (1.2 in) |
| 2000 | 36.3 mm (1.4 in) |
| 2001 | 27.3 mm (1.1 in) |
| 2002 | 26.1 mm (1.0 in) |
| 2003 | 30.9 mm (1.2 in) |
| 2004 | 30.2 mm (1.2 in) |
| 2005 | 30.0 mm (1.2 in) |
| 2006 | 41.5 mm (1.6 in) |
| 2007 | 42.9 mm (1.7 in) |
| 2008 | 33.5 mm (1.3 in) |
| 2009 | 20.3 mm (0.8 in) |
| 2010 | 40.6 mm (1.6 in) |
| 2011 | 52.6 mm (2.1 in) |
| 2012 | 44.4 mm (1.7 in) |
| 2013 | 32.9 mm (1.3 in) |
| 2014 | 28.0 mm (1.1 in) |
| 2015 | 21.1 mm (0.8 in) |
| 2016 | 26.7 mm (1.1 in) |
| 2017 | 33.2 mm (1.3 in) |
| 2018 | 52.1 mm (2.1 in) |
| 2019 | 32.8 mm (1.3 in) |
| 2020 | 36.9 mm (1.5 in) |
| 2021 | 29.8 mm (1.2 in) |
| 2022 | 37.9 mm (1.5 in) |
| 2023 | 25.4 mm (1.0 in) |
| 2024 | 48.3 mm (1.9 in) |
| 2025 | 22.3 mm (0.9 in) |
| 2026 | 26.1 mm (1.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 5 days |
| 1894 | 22 days |
| 1895 | 54 days |
| 1896 | 11 days |
| 1897 | 32 days |
| 1898 | 43 days |
| 1899 | 44 days |
| 1900 | 14 days |
| 1901 | 35 days |
| 1902 | 41 days |
| 1903 | 29 days |
| 1904 | 55 days |
| 1905 | 31 days |
| 1906 | 56 days |
| 1907 | 65 days |
| 1908 | 26 days |
| 1909 | 37 days |
| 1910 | 62 days |
| 1911 | 36 days |
| 1912 | 22 days |
| 1913 | 35 days |
| 1914 | 61 days |
| 1915 | 43 days |
| 1916 | 30 days |
| 1917 | 49 days |
| 1918 | 27 days |
| 1919 | 55 days |
| 1920 | 39 days |
| 1921 | 38 days |
| 1922 | 53 days |
| 1923 | 36 days |
| 1924 | 53 days |
| 1925 | 74 days |
| 1926 | 58 days |
| 1927 | 62 days |
| 1928 | 42 days |
| 1929 | 98 days |
| 1930 | 59 days |
| 1931 | 70 days |
| 1932 | 120 days |
| 1933 | 35 days |
| 1934 | 50 days |
| 1935 | 48 days |
| 1936 | 60 days |
| 1937 | 31 days |
| 1938 | 21 days |
| 1939 | 58 days |
| 1940 | 48 days |
| 1941 | 23 days |
| 1942 | 42 days |
| 1943 | 41 days |
| 1944 | 70 days |
| 1945 | 42 days |
| 1946 | 51 days |
| 1947 | 29 days |
| 1948 | 26 days |
| 1949 | 81 days |
| 1950 | 32 days |
| 1951 | 53 days |
| 1952 | 40 days |
| 1953 | 44 days |
| 1954 | 35 days |
| 1955 | 42 days |
| 1956 | 43 days |
| 1957 | 42 days |
| 1958 | 67 days |
| 1959 | 42 days |
| 1960 | 46 days |
| 1961 | 31 days |
| 1962 | 50 days |
| 1963 | 29 days |
| 1964 | 40 days |
| 1965 | 26 days |
| 1966 | 43 days |
| 1967 | 81 days |
| 1968 | 43 days |
| 1969 | 60 days |
| 1970 | 58 days |
| 1971 | 42 days |
| 1972 | 29 days |
| 1973 | 57 days |
| 1974 | 109 days |
| 1975 | 36 days |
| 1976 | 31 days |
| 1977 | 58 days |
| 1978 | 37 days |
| 1979 | 43 days |
| 1980 | 58 days |
| 1981 | 31 days |
| 1982 | 31 days |
| 1983 | 35 days |
| 1984 | 43 days |
| 1985 | 53 days |
| 1986 | 42 days |
| 1987 | 78 days |
| 1988 | 83 days |
| 1989 | 24 days |
| 1990 | 45 days |
| 1991 | 66 days |
| 1992 | 29 days |
| 1993 | 82 days |
| 1994 | 39 days |
| 1995 | 30 days |
| 1996 | 45 days |
| 1997 | 24 days |
| 1998 | 35 days |
| 1999 | 41 days |
| 2000 | 57 days |
| 2001 | 32 days |
| 2002 | 53 days |
| 2003 | 65 days |
| 2004 | 39 days |
| 2005 | 64 days |
| 2006 | 58 days |
| 2007 | 31 days |
| 2008 | 32 days |
| 2009 | 47 days |
| 2010 | 33 days |
| 2011 | 79 days |
| 2012 | 43 days |
| 2013 | 43 days |
| 2014 | 25 days |
| 2015 | 53 days |
| 2016 | 29 days |
| 2017 | 46 days |
| 2018 | 58 days |
| 2019 | 30 days |
| 2020 | 93 days |
| 2021 | 62 days |
| 2022 | 51 days |
| 2023 | 46 days |
| 2024 | 81 days |
| 2025 | 45 days |
| 2026 | 29 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
112 years with a frostAcross 112 years with a frost, the median last spring frost at Heppner falls on 7 May and the median first autumn frost on 9 October, which leaves a median of 154 days between them.
In 1990 to 2024 the median growing season was 171 days. That is 19 days more than in 1898 to 1935.
Fitted over all years, the growing season changes by +1.9 days per decade at this station.
| Measure | Median, all years | Earliest period (1898 to 1935) | Recent period (1990 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 7 May | 14 May | 1 May | 13 days earlier | -1.4 days per decade |
| First autumn frost | 9 October | 10 October | 16 October | 6 days later | +0.4 days per decade |
| Growing days | 154 days | 152 days | 171 days | 19 days more | +1.9 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
119 years, 1898 to 2024A day with at least 21.8 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 59.8 mm (2.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 21.8 mm (0.9 in) | |
| 5 years | 29.1 mm (1.1 in) | |
| 10 years | 35.0 mm (1.4 in) | |
| 25 years | 43.7 mm (1.7 in) | |
| 50 years | 51.2 mm (2.0 in) | |
| 100 years | 59.8 mm (2.4 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 119 years of values from 1898 to 2024.
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: 52.1 mm (2.1 in) in 1957; 51.1 mm (2.0 in) in 2011; 48.5 mm (1.9 in) in 1988.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Heppner, at 1930 and 1960. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1930 ran 0.3 C (0.5 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1960 ran 0.2 C (0.4 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1930 | -0.2 | -0.4 | possible | 5 |
| 1960 | +0.2 | +0.4 | possible | 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
2009 to 2024 against 1961 to 1990Over 2009 to 2024, Heppner had a mean temperature of 10.7 C (51.3 F) and 324.0 mm (12.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Pomeroy (United States, 196 km away), Reserve Rs (United States, 1,589 km away) and Dayton 1 WSW (United States, 161 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Pomeroy | United States | 196 km (122 mi) | 10.7 C (51.2 F) | 400.7 mm (15.8 in) | 0.68 |
| Reserve Rs | United States | 1,589 km (987 mi) | 10.4 C (50.8 F) | 414.7 mm (16.3 in) | 0.75 |
| Dayton 1 WSW | United States | 161 km (100 mi) | 10.6 C (51.0 F) | 471.5 mm (18.6 in) | 0.82 |
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).