Ritzville 1 SSE Weather Records (USC00457059)
Record envelope, standing records and threshold days for Ritzville 1 SSE (USC00457059), Washington, United States, with 128 years of record.
Key Facts for Ritzville 1 SSE
- Ritzville 1 SSE (USC00457059) is a weather station in Washington, United States at 47.12 latitude and -118.37 longitude, 568 m (1,864 ft) above sea level.
- The station reports from 1899 to 2026, 128 years of record.
- 1,464 records set at Ritzville 1 SSE still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Ritzville 1 SSE tied a daily record low maximum temperature of 11.7 C (53.1 F) on 17 May 2026.
About the Station
- Location: Washington, United States, 47.12 latitude, -118.37 longitude.
- Elevation: 568 m (1,864 ft).
- Period of record: 1899 to 2026, 128 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
2 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 15.6 C (60.1 F) | -30.6 C (-23.1 F) | 12.2 C (54.0 F) | -9.4 C (15.1 F) |
| Feb | 18.9 C (66.0 F) | -31.1 C (-24.0 F) | 11.7 C (53.1 F) | -9.4 C (15.1 F) |
| Mar | 25.0 C (77.0 F) | -17.8 C (0.0 F) | 20.0 C (68.0 F) | -4.4 C (24.1 F) |
| Apr | 33.3 C (91.9 F) | -11.7 C (10.9 F) | 23.3 C (73.9 F) | -3.3 C (26.1 F) |
| May | 37.2 C (99.0 F) | -6.1 C (21.0 F) | 33.3 C (91.9 F) | 0.0 C (32.0 F) |
| Jun | 43.3 C (109.9 F) | -1.7 C (28.9 F) | 33.3 C (91.9 F) | 2.8 C (37.0 F) |
| Jul | 43.9 C (111.0 F) | 0.6 C (33.1 F) | 37.2 C (99.0 F) | 8.3 C (46.9 F) |
| Aug | 44.4 C (111.9 F) | 0.0 C (32.0 F) | 38.3 C (100.9 F) | 5.6 C (42.1 F) |
| Sep | 39.4 C (102.9 F) | -6.7 C (19.9 F) | 28.3 C (82.9 F) | 1.1 C (34.0 F) |
| Oct | 33.9 C (93.0 F) | -15.0 C (5.0 F) | n/a | n/a |
| Nov | 21.1 C (70.0 F) | -25.6 C (-14.1 F) | n/a | n/a |
| Dec | 16.7 C (62.1 F) | -29.4 C (-20.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1916 | 19 |
| 1917 | 18 |
| 1918 | 25 |
| 1919 | 26 |
| 1920 | 12 |
| 1921 | 16 |
| 1922 | 25 |
| 1923 | 14 |
| 1924 | 22 |
| 1925 | 15 |
| 1926 | 18 |
| 1927 | 14 |
| 1928 | 14 |
| 1929 | 24 |
| 1930 | 20 |
| 1931 | 13 |
| 1932 | 14 |
| 1933 | 23 |
| 1934 | 32 |
| 1935 | 27 |
| 1936 | 32 |
| 1937 | 18 |
| 1938 | 15 |
| 1939 | 10 |
| 1940 | 16 |
| 1941 | 13 |
| 1942 | 10 |
| 1943 | 15 |
| 1944 | 17 |
| 1945 | 11 |
| 1946 | 7 |
| 1947 | 7 |
| 1948 | 3 |
| 1949 | 24 |
| 1950 | 29 |
| 1951 | 6 |
| 1952 | 10 |
| 1953 | 17 |
| 1954 | 10 |
| 1955 | 28 |
| 1956 | 16 |
| 1957 | 19 |
| 1958 | 15 |
| 1959 | 12 |
| 1960 | 15 |
| 1961 | 17 |
| 1962 | 11 |
| 1963 | 16 |
| 1964 | 17 |
| 1965 | 18 |
| 1966 | 10 |
| 1967 | 6 |
| 1968 | 17 |
| 1969 | 14 |
| 1970 | 15 |
| 1971 | 12 |
| 1972 | 22 |
| 1973 | 11 |
| 1974 | 7 |
| 1975 | 10 |
| 1976 | 6 |
| 1977 | 10 |
| 1978 | 6 |
| 1979 | 9 |
| 1980 | 15 |
| 1981 | 11 |
| 1982 | 14 |
| 1983 | 9 |
| 1984 | 8 |
| 1985 | 31 |
| 1986 | 7 |
| 1987 | 13 |
| 1988 | 12 |
| 1989 | 11 |
| 1990 | 21 |
| 1991 | 2 |
| 1992 | 17 |
| 1993 | 7 |
| 1994 | 9 |
| 1995 | 7 |
| 1996 | 13 |
| 1998 | 6 |
| 1999 | 8 |
| 2000 | 4 |
| 2001 | 6 |
| 2002 | 15 |
| 2003 | 13 |
| 2004 | 5 |
| 2005 | 2 |
| 2006 | 14 |
| 2007 | 9 |
| 2008 | 7 |
| 2009 | 11 |
| 2010 | 4 |
| 2011 | 6 |
| 2012 | 4 |
| 2013 | 5 |
| 2014 | 8 |
| 2015 | 19 |
| 2016 | 6 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 22 |
| 2020 | 12 |
| 2021 | 19 |
| 2022 | 9 |
| 2023 | 8 |
| 2024 | 9 |
| 2025 | 17 |
| 2026 | 4 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1950-01-31 | Record low minimum temperature | Record low minimum temperature -30.0 C (-22.0 F) |
| 1950-02-01 | Record low minimum temperature | Record low minimum temperature -31.1 C (-24.0 F) |
| 1961-08-05 | Record high maximum temperature | Record high maximum temperature 44.4 C (111.9 F) |
| 1963-02-01 | Record daily snowfall | Record daily snowfall 27.9 cm (11.0 in) |
| 1996-02-01 | Record low maximum temperature | Record low maximum temperature -21.1 C (-6.0 F) |
Wettest Day of Each Month
Dec: 47.2 mm (1.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 26.7 mm (1.1 in) | 18 January 2015 |
| Feb | 27.9 mm (1.1 in) | 1 February 1963 |
| Mar | 24.6 mm (1.0 in) | 27 March 2005 |
| Apr | 22.9 mm (0.9 in) | 17 April 1925 |
| May | 41.1 mm (1.6 in) | 10 May 2005 |
| Jun | 39.4 mm (1.6 in) | 1 June 1923 |
| Jul | 44.2 mm (1.7 in) | 23 July 1993 |
| Aug | 35.3 mm (1.4 in) | 21 August 1959 |
| Sep | 37.6 mm (1.5 in) | 7 September 1900 |
| Oct | 26.2 mm (1.0 in) | 10 October 2016 |
| Nov | 23.6 mm (0.9 in) | 23 November 2024 |
| Dec | 47.2 mm (1.9 in) | 13 December 1912 |
Period of Record Coverage
1916 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1916 | 311 | 85% | No |
| 1917 | 364 | 100% | Yes |
| 1918 | 363 | 99% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 363 | 99% | Yes |
| 1921 | 362 | 99% | Yes |
| 1922 | 362 | 99% | Yes |
| 1923 | 333 | 91% | Yes |
| 1924 | 361 | 99% | Yes |
| 1925 | 326 | 89% | No |
| 1926 | 350 | 96% | Yes |
| 1927 | 331 | 91% | Yes |
| 1928 | 330 | 90% | Yes |
| 1929 | 361 | 99% | Yes |
| 1930 | 360 | 99% | Yes |
| 1931 | 361 | 99% | Yes |
| 1932 | 358 | 98% | Yes |
| 1933 | 363 | 99% | Yes |
| 1934 | 358 | 98% | Yes |
| 1935 | 359 | 98% | Yes |
| 1936 | 364 | 99% | Yes |
| 1937 | 360 | 99% | Yes |
| 1938 | 363 | 99% | Yes |
| 1939 | 358 | 98% | Yes |
| 1940 | 365 | 100% | Yes |
| 1941 | 364 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 365 | 100% | Yes |
| 1945 | 361 | 99% | Yes |
| 1946 | 331 | 91% | Yes |
| 1947 | 301 | 82% | No |
| 1948 | 259 | 71% | No |
| 1949 | 352 | 96% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 362 | 99% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 360 | 99% | Yes |
| 1954 | 362 | 99% | Yes |
| 1955 | 357 | 98% | Yes |
| 1956 | 363 | 99% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 364 | 99% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 324 | 89% | No |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 361 | 99% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 364 | 100% | Yes |
| 1994 | 364 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 364 | 99% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 363 | 99% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 360 | 99% | Yes |
| 2015 | 354 | 97% | Yes |
| 2016 | 360 | 98% | Yes |
| 2017 | 360 | 99% | Yes |
| 2018 | 356 | 98% | Yes |
| 2019 | 361 | 99% | Yes |
| 2020 | 363 | 99% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 362 | 99% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 363 | 99% | Yes |
| 2025 | 362 | 99% | Yes |
| 2026 | 259 | 71% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 17 May 2026 | Ritzville 1 SSE, US | daily low max (Tie) | 11.7 C (53.1 F) | tie | 71 years | 7 of 100 (Routine) |
| 2 April 2026 | Ritzville 1 SSE, US | daily rain | 13.2 mm (0.5 in) | 2.3 mm (0.09 in) | 16 years | 20 of 100 (Routine) |
| 20 March 2026 | Ritzville 1 SSE, US | monthly high min | 12.2 C (54.0 F) | 2.2 C (4.0 F) | 0 years | 26 of 100 (Routine) |
| 19 March 2026 | Ritzville 1 SSE, US | monthly high min | 10.0 C (50.0 F) | 0.6 C (1.1 F) | 91 years | 48 of 100 (Notable) |
| 8 March 2026 | Ritzville 1 SSE, US | daily high min | 5.0 C (41.0 F) | 1.1 C (2.0 F) | 89 years | 39 of 100 (Notable) |
| 14 January 2026 | Ritzville 1 SSE, US | daily high max | 12.2 C (54.0 F) | 1.6 C (2.9 F) | 80 years | 37 of 100 (Notable) |
| 13 January 2026 | Ritzville 1 SSE, US | daily high max (Tie) | 11.7 C (53.1 F) | tie | 72 years | 7 of 100 (Routine) |
| 25 December 2025 | Ritzville 1 SSE, US | daily high max (Tie) | 9.4 C (48.9 F) | tie | 20 years | 4 of 100 (Routine) |
| 17 December 2025 | Ritzville 1 SSE, US | daily high max | 12.8 C (55.0 F) | 1.1 C (2.0 F) | 26 years | 19 of 100 (Routine) |
| 16 December 2025 | Ritzville 1 SSE, US | daily high max | 14.4 C (57.9 F) | 1.6 C (2.9 F) | 86 years | 38 of 100 (Notable) |
| 14 December 2025 | Ritzville 1 SSE, US | daily high max | 14.4 C (57.9 F) | 1.6 C (2.9 F) | 108 years | 43 of 100 (Notable) |
| 11 December 2025 | Ritzville 1 SSE, US | daily high min | 10.0 C (50.0 F) | 3.9 C (7.0 F) | 20 years | 23 of 100 (Routine) |
| 11 December 2025 | Ritzville 1 SSE, US | daily high max (Tie) | 14.4 C (57.9 F) | tie | 11 years | 3 of 100 (Routine) |
| 10 December 2025 | Ritzville 1 SSE, US | daily high min | 6.7 C (44.1 F) | 2.3 C (4.1 F) | 86 years | 39 of 100 (Notable) |
| 8 December 2025 | Ritzville 1 SSE, US | daily high min (Tie) | 4.4 C (39.9 F) | tie | 10 years | 3 of 100 (Routine) |
| 17 November 2025 | Ritzville 1 SSE, US | daily high min | 8.3 C (46.9 F) | 1.6 C (2.9 F) | 104 years | 43 of 100 (Notable) |
| 16 November 2025 | Ritzville 1 SSE, US | daily high min | 8.9 C (48.0 F) | 1.7 C (3.1 F) | 106 years | 43 of 100 (Notable) |
| 16 November 2025 | Ritzville 1 SSE, US | daily high max (Tie) | 16.1 C (61.0 F) | tie | 26 years | 4 of 100 (Routine) |
| 6 September 2025 | Ritzville 1 SSE, US | daily high min | 17.2 C (63.0 F) | 1.6 C (2.9 F) | 92 years | 41 of 100 (Notable) |
| 5 September 2025 | Ritzville 1 SSE, US | daily high min | 17.8 C (64.0 F) | 1.1 C (2.0 F) | 58 years | 29 of 100 (Routine) |
Climate Trend
99 complete years, 1917 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1917 | 9.2 C | -0.06 C |
| 1918 | 10.2 C | +0.97 C |
| 1919 | 8.7 C | -0.56 C |
| 1920 | 9.0 C | -0.26 C |
| 1921 | 9.5 C | +0.21 C |
| 1922 | 8.3 C | -1.00 C |
| 1924 | 9.7 C | +0.41 C |
| 1929 | 8.3 C | -1.00 C |
| 1930 | 9.4 C | +0.12 C |
| 1931 | 10.0 C | +0.76 C |
| 1932 | 9.4 C | +0.13 C |
| 1933 | 9.4 C | +0.15 C |
| 1934 | 11.8 C | +2.54 C |
| 1935 | 9.5 C | +0.24 C |
| 1936 | 9.7 C | +0.43 C |
| 1937 | 9.1 C | -0.15 C |
| 1938 | 10.3 C | +1.04 C |
| 1939 | 10.7 C | +1.42 C |
| 1940 | 10.4 C | +1.17 C |
| 1941 | 10.2 C | +0.93 C |
| 1942 | 9.2 C | -0.10 C |
| 1943 | 8.6 C | -0.64 C |
| 1944 | 9.5 C | +0.25 C |
| 1945 | 9.5 C | +0.29 C |
| 1950 | 8.3 C | -0.91 C |
| 1951 | 9.0 C | -0.30 C |
| 1952 | 9.7 C | +0.41 C |
| 1953 | 10.4 C | +1.14 C |
| 1954 | 8.8 C | -0.45 C |
| 1955 | 7.9 C | -1.33 C |
| 1956 | 9.0 C | -0.25 C |
| 1957 | 8.9 C | -0.35 C |
| 1958 | 11.0 C | +1.78 C |
| 1959 | 8.8 C | -0.44 C |
| 1960 | 9.1 C | -0.12 C |
| 1961 | 10.2 C | +0.90 C |
| 1962 | 9.3 C | +0.04 C |
| 1963 | 9.7 C | +0.42 C |
| 1964 | 8.9 C | -0.36 C |
| 1966 | 9.7 C | +0.48 C |
| 1967 | 10.1 C | +0.81 C |
| 1968 | 9.2 C | -0.01 C |
| 1969 | 8.1 C | -1.14 C |
| 1970 | 8.5 C | -0.76 C |
| 1971 | 8.3 C | -0.96 C |
| 1972 | 8.2 C | -1.06 C |
| 1973 | 9.2 C | -0.04 C |
| 1974 | 9.1 C | -0.17 C |
| 1975 | 8.2 C | -1.07 C |
| 1976 | 8.6 C | -0.64 C |
| 1977 | 8.5 C | -0.77 C |
| 1978 | 8.4 C | -0.89 C |
| 1979 | 8.8 C | -0.45 C |
| 1980 | 8.6 C | -0.68 C |
| 1981 | 9.3 C | +0.01 C |
| 1982 | 8.1 C | -1.20 C |
| 1983 | 9.1 C | -0.15 C |
| 1984 | 7.9 C | -1.37 C |
| 1985 | 6.8 C | -2.42 C |
| 1986 | 9.5 C | +0.25 C |
| 1987 | 10.3 C | +1.04 C |
| 1988 | 9.6 C | +0.33 C |
| 1989 | 9.1 C | -0.18 C |
| 1990 | 9.2 C | -0.09 C |
| 1991 | 8.7 C | -0.59 C |
| 1992 | 9.7 C | +0.49 C |
| 1993 | 7.8 C | -1.43 C |
| 1994 | 9.9 C | +0.67 C |
| 1995 | 9.3 C | +0.08 C |
| 1996 | 8.0 C | -1.26 C |
| 1997 | 9.2 C | -0.08 C |
| 1998 | 10.5 C | +1.25 C |
| 1999 | 9.5 C | +0.25 C |
| 2000 | 8.6 C | -0.70 C |
| 2001 | 9.3 C | +0.06 C |
| 2002 | 9.1 C | -0.11 C |
| 2003 | 10.1 C | +0.80 C |
| 2004 | 9.8 C | +0.58 C |
| 2005 | 9.1 C | -0.11 C |
| 2006 | 9.5 C | +0.26 C |
| 2007 | 9.8 C | +0.58 C |
| 2008 | 8.2 C | -1.10 C |
| 2009 | 8.8 C | -0.47 C |
| 2010 | 9.2 C | -0.02 C |
| 2011 | 8.3 C | -0.98 C |
| 2012 | 9.4 C | +0.19 C |
| 2013 | 9.0 C | -0.23 C |
| 2014 | 9.8 C | +0.58 C |
| 2015 | 11.0 C | +1.72 C |
| 2016 | 10.0 C | +0.71 C |
| 2017 | 8.8 C | -0.50 C |
| 2018 | 9.5 C | +0.23 C |
| 2019 | 8.2 C | -1.08 C |
| 2020 | 9.5 C | +0.29 C |
| 2021 | 10.0 C | +0.75 C |
| 2022 | 8.7 C | -0.55 C |
| 2023 | 10.0 C | +0.79 C |
| 2024 | 10.2 C | +0.96 C |
| 2025 | 10.9 C | +1.62 C |
The fitted trend in annual mean temperature here over 1917 to 2025 is -0.01 C (-0.06 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.02 F (-0.12 to 0.08) per decade. The slope is a straight line fitted to 99 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.01 C (-0.06 to 0.04) per decade | -0.02 F (-0.12 to 0.08) per decade | 1917 to 2025 | 99 | 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 | 1917 to 2025 | 99 | Not clearly different from zero |
| Mean daily minimum | 0.04 C (-0.02 to 0.09) per decade | 0.06 F (-0.03 to 0.16) per decade | 1917 to 2025 | 99 | 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
1899 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 44.4 C (111.9 F) | 1961 | 39.4 C (102.9 F) | 111 |
| Coldest night (TNn) | -31.1 C (-24.0 F) | 1950 | -18.9 C (-2.0 F) | 111 |
| Wettest day (Rx1day) | 47.2 mm (1.9 in) | 1912 | 18.5 mm (0.7 in) | 128 |
| Wettest five days (Rx5day) | 71.9 mm (2.8 in) | 1927 | 31.3 mm (1.2 in) | 128 |
| Longest dry spell (CDD) | 104 days | 1974 | 45 days | 128 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1899 | n/a |
| 1900 | n/a |
| 1901 | n/a |
| 1902 | n/a |
| 1903 | n/a |
| 1904 | n/a |
| 1905 | n/a |
| 1906 | n/a |
| 1907 | n/a |
| 1908 | n/a |
| 1909 | n/a |
| 1910 | n/a |
| 1911 | n/a |
| 1912 | n/a |
| 1913 | n/a |
| 1914 | n/a |
| 1915 | n/a |
| 1916 | 38.3 C (100.9 F) |
| 1917 | 39.4 C (102.9 F) |
| 1918 | 41.1 C (106.0 F) |
| 1919 | 40.6 C (105.1 F) |
| 1920 | 38.9 C (102.0 F) |
| 1921 | 38.9 C (102.0 F) |
| 1922 | 40.0 C (104.0 F) |
| 1923 | 41.1 C (106.0 F) |
| 1924 | 42.2 C (108.0 F) |
| 1925 | 40.6 C (105.1 F) |
| 1926 | 39.4 C (102.9 F) |
| 1927 | 40.0 C (104.0 F) |
| 1928 | 43.9 C (111.0 F) |
| 1929 | 41.1 C (106.0 F) |
| 1930 | 41.1 C (106.0 F) |
| 1931 | 42.8 C (109.0 F) |
| 1932 | 40.0 C (104.0 F) |
| 1933 | 41.1 C (106.0 F) |
| 1934 | 41.7 C (107.1 F) |
| 1935 | 42.8 C (109.0 F) |
| 1936 | 40.0 C (104.0 F) |
| 1937 | 40.6 C (105.1 F) |
| 1938 | 40.6 C (105.1 F) |
| 1939 | 43.3 C (109.9 F) |
| 1940 | 40.0 C (104.0 F) |
| 1941 | 42.8 C (109.0 F) |
| 1942 | 40.6 C (105.1 F) |
| 1943 | 37.8 C (100.0 F) |
| 1944 | 38.3 C (100.9 F) |
| 1945 | 38.3 C (100.9 F) |
| 1946 | 40.0 C (104.0 F) |
| 1947 | 38.3 C (100.9 F) |
| 1948 | 37.2 C (99.0 F) |
| 1949 | 40.6 C (105.1 F) |
| 1950 | 38.3 C (100.9 F) |
| 1951 | 40.0 C (104.0 F) |
| 1952 | 40.0 C (104.0 F) |
| 1953 | 40.0 C (104.0 F) |
| 1954 | 37.2 C (99.0 F) |
| 1955 | 40.6 C (105.1 F) |
| 1956 | 40.0 C (104.0 F) |
| 1957 | 36.1 C (97.0 F) |
| 1958 | 39.4 C (102.9 F) |
| 1959 | 41.1 C (106.0 F) |
| 1960 | 42.2 C (108.0 F) |
| 1961 | 44.4 C (111.9 F) |
| 1962 | 38.9 C (102.0 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 40.6 C (105.1 F) |
| 1965 | 39.4 C (102.9 F) |
| 1966 | 38.9 C (102.0 F) |
| 1967 | 40.6 C (105.1 F) |
| 1968 | 38.9 C (102.0 F) |
| 1969 | 36.1 C (97.0 F) |
| 1970 | 38.9 C (102.0 F) |
| 1971 | 40.0 C (104.0 F) |
| 1972 | 40.6 C (105.1 F) |
| 1973 | 38.3 C (100.9 F) |
| 1974 | 37.2 C (99.0 F) |
| 1975 | 41.7 C (107.1 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 40.0 C (104.0 F) |
| 1978 | 38.9 C (102.0 F) |
| 1979 | 41.1 C (106.0 F) |
| 1980 | 39.4 C (102.9 F) |
| 1981 | 38.9 C (102.0 F) |
| 1982 | 38.9 C (102.0 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 41.7 C (107.1 F) |
| 1985 | 38.9 C (102.0 F) |
| 1986 | 37.8 C (100.0 F) |
| 1987 | 37.8 C (100.0 F) |
| 1988 | 39.4 C (102.9 F) |
| 1989 | 37.8 C (100.0 F) |
| 1990 | 40.0 C (104.0 F) |
| 1991 | 37.2 C (99.0 F) |
| 1992 | 38.9 C (102.0 F) |
| 1993 | 35.0 C (95.0 F) |
| 1994 | 40.0 C (104.0 F) |
| 1995 | 36.7 C (98.1 F) |
| 1996 | 38.3 C (100.9 F) |
| 1997 | 37.2 C (99.0 F) |
| 1998 | 40.6 C (105.1 F) |
| 1999 | 37.8 C (100.0 F) |
| 2000 | 37.8 C (100.0 F) |
| 2001 | 38.9 C (102.0 F) |
| 2002 | 41.1 C (106.0 F) |
| 2003 | 38.9 C (102.0 F) |
| 2004 | 38.9 C (102.0 F) |
| 2005 | 37.8 C (100.0 F) |
| 2006 | 40.0 C (104.0 F) |
| 2007 | 38.9 C (102.0 F) |
| 2008 | 41.1 C (106.0 F) |
| 2009 | 39.4 C (102.9 F) |
| 2010 | 36.1 C (97.0 F) |
| 2011 | 36.1 C (97.0 F) |
| 2012 | 36.7 C (98.1 F) |
| 2013 | 38.9 C (102.0 F) |
| 2014 | 38.9 C (102.0 F) |
| 2015 | 41.7 C (107.1 F) |
| 2016 | 37.2 C (99.0 F) |
| 2017 | 37.8 C (100.0 F) |
| 2018 | 40.6 C (105.1 F) |
| 2019 | 37.8 C (100.0 F) |
| 2020 | 40.0 C (104.0 F) |
| 2021 | 43.3 C (109.9 F) |
| 2022 | 41.1 C (106.0 F) |
| 2023 | 39.4 C (102.9 F) |
| 2024 | 42.2 C (108.0 F) |
| 2025 | 38.3 C (100.9 F) |
| 2026 | 38.3 C (100.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1899 | n/a |
| 1900 | n/a |
| 1901 | n/a |
| 1902 | n/a |
| 1903 | n/a |
| 1904 | n/a |
| 1905 | n/a |
| 1906 | n/a |
| 1907 | n/a |
| 1908 | n/a |
| 1909 | n/a |
| 1910 | n/a |
| 1911 | n/a |
| 1912 | n/a |
| 1913 | n/a |
| 1914 | n/a |
| 1915 | n/a |
| 1916 | -23.3 C (-9.9 F) |
| 1917 | -18.9 C (-2.0 F) |
| 1918 | -18.3 C (-0.9 F) |
| 1919 | -29.4 C (-20.9 F) |
| 1920 | -13.9 C (7.0 F) |
| 1921 | -16.7 C (1.9 F) |
| 1922 | -26.1 C (-15.0 F) |
| 1923 | -21.1 C (-6.0 F) |
| 1924 | -22.2 C (-8.0 F) |
| 1925 | -20.0 C (-4.0 F) |
| 1926 | -17.8 C (0.0 F) |
| 1927 | -23.3 C (-9.9 F) |
| 1928 | -15.0 C (5.0 F) |
| 1929 | -28.3 C (-18.9 F) |
| 1930 | -26.1 C (-15.0 F) |
| 1931 | -17.2 C (1.0 F) |
| 1932 | -20.0 C (-4.0 F) |
| 1933 | -27.2 C (-17.0 F) |
| 1934 | -5.6 C (21.9 F) |
| 1935 | -24.4 C (-11.9 F) |
| 1936 | -23.9 C (-11.0 F) |
| 1937 | -26.1 C (-15.0 F) |
| 1938 | -12.2 C (10.0 F) |
| 1939 | -18.9 C (-2.0 F) |
| 1940 | -15.6 C (3.9 F) |
| 1941 | -12.8 C (9.0 F) |
| 1942 | -21.7 C (-7.1 F) |
| 1943 | -22.8 C (-9.0 F) |
| 1944 | -13.3 C (8.1 F) |
| 1945 | -14.4 C (6.1 F) |
| 1946 | -15.0 C (5.0 F) |
| 1947 | -19.4 C (-2.9 F) |
| 1948 | -21.7 C (-7.1 F) |
| 1949 | -25.0 C (-13.0 F) |
| 1950 | -31.1 C (-24.0 F) |
| 1951 | -19.4 C (-2.9 F) |
| 1952 | -26.1 C (-15.0 F) |
| 1953 | -9.4 C (15.1 F) |
| 1954 | -23.3 C (-9.9 F) |
| 1955 | -23.3 C (-9.9 F) |
| 1956 | -25.6 C (-14.1 F) |
| 1957 | -30.6 C (-23.1 F) |
| 1958 | -13.3 C (8.1 F) |
| 1959 | -19.4 C (-2.9 F) |
| 1960 | -19.4 C (-2.9 F) |
| 1961 | -20.6 C (-5.1 F) |
| 1962 | -19.4 C (-2.9 F) |
| 1963 | -21.1 C (-6.0 F) |
| 1964 | -27.8 C (-18.0 F) |
| 1965 | -13.3 C (8.1 F) |
| 1966 | -12.2 C (10.0 F) |
| 1967 | -16.7 C (1.9 F) |
| 1968 | -26.1 C (-15.0 F) |
| 1969 | -25.0 C (-13.0 F) |
| 1970 | -17.8 C (0.0 F) |
| 1971 | -16.1 C (3.0 F) |
| 1972 | -23.9 C (-11.0 F) |
| 1973 | -16.7 C (1.9 F) |
| 1974 | -24.4 C (-11.9 F) |
| 1975 | -17.8 C (0.0 F) |
| 1976 | -14.4 C (6.1 F) |
| 1977 | -20.6 C (-5.1 F) |
| 1978 | -23.9 C (-11.0 F) |
| 1979 | -25.6 C (-14.1 F) |
| 1980 | -18.9 C (-2.0 F) |
| 1981 | -14.4 C (6.1 F) |
| 1982 | -27.8 C (-18.0 F) |
| 1983 | -22.8 C (-9.0 F) |
| 1984 | -21.1 C (-6.0 F) |
| 1985 | -25.6 C (-14.1 F) |
| 1986 | -13.3 C (8.1 F) |
| 1987 | -19.4 C (-2.9 F) |
| 1988 | -16.1 C (3.0 F) |
| 1989 | -21.1 C (-6.0 F) |
| 1990 | -26.1 C (-15.0 F) |
| 1991 | -16.7 C (1.9 F) |
| 1992 | -15.0 C (5.0 F) |
| 1993 | -17.8 C (0.0 F) |
| 1994 | -16.1 C (3.0 F) |
| 1995 | -15.0 C (5.0 F) |
| 1996 | -29.4 C (-20.9 F) |
| 1997 | -15.0 C (5.0 F) |
| 1998 | -18.3 C (-0.9 F) |
| 1999 | -12.8 C (9.0 F) |
| 2000 | -13.3 C (8.1 F) |
| 2001 | -10.6 C (12.9 F) |
| 2002 | -13.3 C (8.1 F) |
| 2003 | -16.7 C (1.9 F) |
| 2004 | -25.0 C (-13.0 F) |
| 2005 | -17.2 C (1.0 F) |
| 2006 | -18.9 C (-2.0 F) |
| 2007 | -16.1 C (3.0 F) |
| 2008 | -22.8 C (-9.0 F) |
| 2009 | -16.7 C (1.9 F) |
| 2010 | -22.8 C (-9.0 F) |
| 2011 | -17.2 C (1.0 F) |
| 2012 | -13.9 C (7.0 F) |
| 2013 | -21.1 C (-6.0 F) |
| 2014 | -18.3 C (-0.9 F) |
| 2015 | -13.9 C (7.0 F) |
| 2016 | -22.2 C (-8.0 F) |
| 2017 | -20.6 C (-5.1 F) |
| 2018 | -12.8 C (9.0 F) |
| 2019 | -16.7 C (1.9 F) |
| 2020 | -12.2 C (10.0 F) |
| 2021 | -15.6 C (3.9 F) |
| 2022 | -22.2 C (-8.0 F) |
| 2023 | -15.0 C (5.0 F) |
| 2024 | -21.7 C (-7.1 F) |
| 2025 | -17.8 C (0.0 F) |
| 2026 | -9.4 C (15.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1899 | 15.5 mm (0.6 in) |
| 1900 | 37.6 mm (1.5 in) |
| 1901 | 12.7 mm (0.5 in) |
| 1902 | 25.4 mm (1.0 in) |
| 1903 | 16.5 mm (0.6 in) |
| 1904 | 15.5 mm (0.6 in) |
| 1905 | 22.6 mm (0.9 in) |
| 1906 | 25.4 mm (1.0 in) |
| 1907 | 25.9 mm (1.0 in) |
| 1908 | 16.8 mm (0.7 in) |
| 1909 | 19.8 mm (0.8 in) |
| 1910 | 20.3 mm (0.8 in) |
| 1911 | 15.2 mm (0.6 in) |
| 1912 | 47.2 mm (1.9 in) |
| 1913 | 20.3 mm (0.8 in) |
| 1914 | 14.0 mm (0.6 in) |
| 1915 | 14.7 mm (0.6 in) |
| 1916 | 19.1 mm (0.8 in) |
| 1917 | 23.9 mm (0.9 in) |
| 1918 | 15.7 mm (0.6 in) |
| 1919 | 20.8 mm (0.8 in) |
| 1920 | 16.5 mm (0.6 in) |
| 1921 | 14.2 mm (0.6 in) |
| 1922 | 10.9 mm (0.4 in) |
| 1923 | 39.4 mm (1.6 in) |
| 1924 | 21.8 mm (0.9 in) |
| 1925 | 22.9 mm (0.9 in) |
| 1926 | 33.5 mm (1.3 in) |
| 1927 | 24.1 mm (0.9 in) |
| 1928 | 20.3 mm (0.8 in) |
| 1929 | 10.7 mm (0.4 in) |
| 1930 | 11.2 mm (0.4 in) |
| 1931 | 18.5 mm (0.7 in) |
| 1932 | 14.7 mm (0.6 in) |
| 1933 | 14.0 mm (0.6 in) |
| 1934 | 18.3 mm (0.7 in) |
| 1935 | 15.0 mm (0.6 in) |
| 1936 | 17.8 mm (0.7 in) |
| 1937 | 20.3 mm (0.8 in) |
| 1938 | 35.6 mm (1.4 in) |
| 1939 | 12.2 mm (0.5 in) |
| 1940 | 27.4 mm (1.1 in) |
| 1941 | 22.9 mm (0.9 in) |
| 1942 | 29.5 mm (1.2 in) |
| 1943 | 20.3 mm (0.8 in) |
| 1944 | 17.3 mm (0.7 in) |
| 1945 | 16.8 mm (0.7 in) |
| 1946 | 21.1 mm (0.8 in) |
| 1947 | 18.5 mm (0.7 in) |
| 1948 | 25.7 mm (1.0 in) |
| 1949 | 19.1 mm (0.8 in) |
| 1950 | 15.7 mm (0.6 in) |
| 1951 | 14.0 mm (0.6 in) |
| 1952 | 17.3 mm (0.7 in) |
| 1953 | 16.5 mm (0.6 in) |
| 1954 | 16.8 mm (0.7 in) |
| 1955 | 16.0 mm (0.6 in) |
| 1956 | 25.9 mm (1.0 in) |
| 1957 | 29.0 mm (1.1 in) |
| 1958 | 22.1 mm (0.9 in) |
| 1959 | 35.3 mm (1.4 in) |
| 1960 | 18.5 mm (0.7 in) |
| 1961 | 16.0 mm (0.6 in) |
| 1962 | 15.5 mm (0.6 in) |
| 1963 | 27.9 mm (1.1 in) |
| 1964 | 16.0 mm (0.6 in) |
| 1965 | 28.7 mm (1.1 in) |
| 1966 | 23.9 mm (0.9 in) |
| 1967 | 17.5 mm (0.7 in) |
| 1968 | 16.5 mm (0.6 in) |
| 1969 | 17.8 mm (0.7 in) |
| 1970 | 21.8 mm (0.9 in) |
| 1971 | 17.5 mm (0.7 in) |
| 1972 | 16.5 mm (0.6 in) |
| 1973 | 20.1 mm (0.8 in) |
| 1974 | 12.4 mm (0.5 in) |
| 1975 | 15.7 mm (0.6 in) |
| 1976 | 13.0 mm (0.5 in) |
| 1977 | 24.6 mm (1.0 in) |
| 1978 | 20.1 mm (0.8 in) |
| 1979 | 21.6 mm (0.9 in) |
| 1980 | 17.5 mm (0.7 in) |
| 1981 | 11.2 mm (0.4 in) |
| 1982 | 15.2 mm (0.6 in) |
| 1983 | 19.1 mm (0.8 in) |
| 1984 | 23.4 mm (0.9 in) |
| 1985 | 10.9 mm (0.4 in) |
| 1986 | 20.8 mm (0.8 in) |
| 1987 | 19.3 mm (0.8 in) |
| 1988 | 20.6 mm (0.8 in) |
| 1989 | 12.7 mm (0.5 in) |
| 1990 | 19.6 mm (0.8 in) |
| 1991 | 14.2 mm (0.6 in) |
| 1992 | 16.8 mm (0.7 in) |
| 1993 | 44.2 mm (1.7 in) |
| 1994 | 17.3 mm (0.7 in) |
| 1995 | 17.3 mm (0.7 in) |
| 1996 | 18.3 mm (0.7 in) |
| 1997 | 19.3 mm (0.8 in) |
| 1998 | 30.7 mm (1.2 in) |
| 1999 | 16.3 mm (0.6 in) |
| 2000 | 14.2 mm (0.6 in) |
| 2001 | 18.5 mm (0.7 in) |
| 2002 | 12.7 mm (0.5 in) |
| 2003 | 16.5 mm (0.6 in) |
| 2004 | 25.7 mm (1.0 in) |
| 2005 | 41.1 mm (1.6 in) |
| 2006 | 15.2 mm (0.6 in) |
| 2007 | 12.2 mm (0.5 in) |
| 2008 | 14.7 mm (0.6 in) |
| 2009 | 21.1 mm (0.8 in) |
| 2010 | 27.2 mm (1.1 in) |
| 2011 | 17.8 mm (0.7 in) |
| 2012 | 20.3 mm (0.8 in) |
| 2013 | 18.5 mm (0.7 in) |
| 2014 | 19.6 mm (0.8 in) |
| 2015 | 26.7 mm (1.1 in) |
| 2016 | 26.2 mm (1.0 in) |
| 2017 | 21.1 mm (0.8 in) |
| 2018 | 18.0 mm (0.7 in) |
| 2019 | 18.0 mm (0.7 in) |
| 2020 | 28.7 mm (1.1 in) |
| 2021 | 14.2 mm (0.6 in) |
| 2022 | 16.0 mm (0.6 in) |
| 2023 | 18.8 mm (0.7 in) |
| 2024 | 23.6 mm (0.9 in) |
| 2025 | 18.3 mm (0.7 in) |
| 2026 | 13.2 mm (0.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1899 | 32.0 mm (1.3 in) |
| 1900 | 37.6 mm (1.5 in) |
| 1901 | 16.0 mm (0.6 in) |
| 1902 | 25.4 mm (1.0 in) |
| 1903 | 30.5 mm (1.2 in) |
| 1904 | 20.4 mm (0.8 in) |
| 1905 | 30.0 mm (1.2 in) |
| 1906 | 34.5 mm (1.4 in) |
| 1907 | 38.1 mm (1.5 in) |
| 1908 | 42.2 mm (1.7 in) |
| 1909 | 35.8 mm (1.4 in) |
| 1910 | 34.0 mm (1.3 in) |
| 1911 | 29.9 mm (1.2 in) |
| 1912 | 57.4 mm (2.3 in) |
| 1913 | 32.0 mm (1.3 in) |
| 1914 | 35.0 mm (1.4 in) |
| 1915 | 36.8 mm (1.4 in) |
| 1916 | 31.3 mm (1.2 in) |
| 1917 | 30.3 mm (1.2 in) |
| 1918 | 18.6 mm (0.7 in) |
| 1919 | 34.4 mm (1.4 in) |
| 1920 | 32.0 mm (1.3 in) |
| 1921 | 26.9 mm (1.1 in) |
| 1922 | 15.3 mm (0.6 in) |
| 1923 | 44.8 mm (1.8 in) |
| 1924 | 27.5 mm (1.1 in) |
| 1925 | 32.8 mm (1.3 in) |
| 1926 | 31.5 mm (1.2 in) |
| 1927 | 71.9 mm (2.8 in) |
| 1928 | 28.3 mm (1.1 in) |
| 1929 | 25.5 mm (1.0 in) |
| 1930 | 23.6 mm (0.9 in) |
| 1931 | 46.9 mm (1.8 in) |
| 1932 | 21.6 mm (0.9 in) |
| 1933 | 33.8 mm (1.3 in) |
| 1934 | 28.0 mm (1.1 in) |
| 1935 | 18.8 mm (0.7 in) |
| 1936 | 38.9 mm (1.5 in) |
| 1937 | 29.9 mm (1.2 in) |
| 1938 | 39.9 mm (1.6 in) |
| 1939 | 18.0 mm (0.7 in) |
| 1940 | 31.9 mm (1.3 in) |
| 1941 | 29.5 mm (1.2 in) |
| 1942 | 26.4 mm (1.0 in) |
| 1943 | 40.2 mm (1.6 in) |
| 1944 | 26.7 mm (1.1 in) |
| 1945 | 32.6 mm (1.3 in) |
| 1946 | 31.3 mm (1.2 in) |
| 1947 | 39.0 mm (1.5 in) |
| 1948 | 47.6 mm (1.9 in) |
| 1949 | 25.1 mm (1.0 in) |
| 1950 | 29.6 mm (1.2 in) |
| 1951 | 30.6 mm (1.2 in) |
| 1952 | 23.6 mm (0.9 in) |
| 1953 | 37.8 mm (1.5 in) |
| 1954 | 32.5 mm (1.3 in) |
| 1955 | 27.8 mm (1.1 in) |
| 1956 | 30.5 mm (1.2 in) |
| 1957 | 32.3 mm (1.3 in) |
| 1958 | 37.1 mm (1.5 in) |
| 1959 | 39.9 mm (1.6 in) |
| 1960 | 37.6 mm (1.5 in) |
| 1961 | 33.5 mm (1.3 in) |
| 1962 | 29.5 mm (1.2 in) |
| 1963 | 45.7 mm (1.8 in) |
| 1964 | 30.6 mm (1.2 in) |
| 1965 | 29.5 mm (1.2 in) |
| 1966 | 46.6 mm (1.8 in) |
| 1967 | 32.0 mm (1.3 in) |
| 1968 | 35.3 mm (1.4 in) |
| 1969 | 20.4 mm (0.8 in) |
| 1970 | 37.3 mm (1.5 in) |
| 1971 | 40.6 mm (1.6 in) |
| 1972 | 24.2 mm (1.0 in) |
| 1973 | 43.8 mm (1.7 in) |
| 1974 | 22.9 mm (0.9 in) |
| 1975 | 24.1 mm (0.9 in) |
| 1976 | 21.8 mm (0.9 in) |
| 1977 | 57.6 mm (2.3 in) |
| 1978 | 29.7 mm (1.2 in) |
| 1979 | 31.8 mm (1.3 in) |
| 1980 | 31.2 mm (1.2 in) |
| 1981 | 18.8 mm (0.7 in) |
| 1982 | 30.4 mm (1.2 in) |
| 1983 | 29.2 mm (1.1 in) |
| 1984 | 29.0 mm (1.1 in) |
| 1985 | 18.2 mm (0.7 in) |
| 1986 | 25.9 mm (1.0 in) |
| 1987 | 37.9 mm (1.5 in) |
| 1988 | 30.5 mm (1.2 in) |
| 1989 | 38.0 mm (1.5 in) |
| 1990 | 46.2 mm (1.8 in) |
| 1991 | 28.2 mm (1.1 in) |
| 1992 | 26.8 mm (1.1 in) |
| 1993 | 51.1 mm (2.0 in) |
| 1994 | 33.6 mm (1.3 in) |
| 1995 | 32.3 mm (1.3 in) |
| 1996 | 36.6 mm (1.4 in) |
| 1997 | 35.6 mm (1.4 in) |
| 1998 | 34.9 mm (1.4 in) |
| 1999 | 24.9 mm (1.0 in) |
| 2000 | 21.6 mm (0.9 in) |
| 2001 | 27.5 mm (1.1 in) |
| 2002 | 29.0 mm (1.1 in) |
| 2003 | 31.3 mm (1.2 in) |
| 2004 | 40.6 mm (1.6 in) |
| 2005 | 43.4 mm (1.7 in) |
| 2006 | 47.3 mm (1.9 in) |
| 2007 | 20.8 mm (0.8 in) |
| 2008 | 25.2 mm (1.0 in) |
| 2009 | 31.0 mm (1.2 in) |
| 2010 | 32.7 mm (1.3 in) |
| 2011 | 28.7 mm (1.1 in) |
| 2012 | 34.4 mm (1.4 in) |
| 2013 | 33.2 mm (1.3 in) |
| 2014 | 29.5 mm (1.2 in) |
| 2015 | 46.7 mm (1.8 in) |
| 2016 | 48.1 mm (1.9 in) |
| 2017 | 32.2 mm (1.3 in) |
| 2018 | 28.6 mm (1.1 in) |
| 2019 | 28.4 mm (1.1 in) |
| 2020 | 38.2 mm (1.5 in) |
| 2021 | 23.8 mm (0.9 in) |
| 2022 | 28.5 mm (1.1 in) |
| 2023 | 44.0 mm (1.7 in) |
| 2024 | 44.1 mm (1.7 in) |
| 2025 | 26.9 mm (1.1 in) |
| 2026 | 18.6 mm (0.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1899 | 45 days |
| 1900 | 33 days |
| 1901 | 49 days |
| 1902 | 52 days |
| 1903 | 53 days |
| 1904 | 82 days |
| 1905 | 32 days |
| 1906 | 17 days |
| 1907 | 30 days |
| 1908 | 33 days |
| 1909 | 28 days |
| 1910 | 47 days |
| 1911 | 51 days |
| 1912 | 32 days |
| 1913 | 43 days |
| 1914 | 22 days |
| 1915 | 5 days |
| 1916 | 43 days |
| 1917 | 78 days |
| 1918 | 43 days |
| 1919 | 69 days |
| 1920 | 27 days |
| 1921 | 54 days |
| 1922 | 62 days |
| 1923 | 42 days |
| 1924 | 56 days |
| 1925 | 65 days |
| 1926 | 42 days |
| 1927 | 28 days |
| 1928 | 28 days |
| 1929 | 99 days |
| 1930 | 76 days |
| 1931 | 54 days |
| 1932 | 49 days |
| 1933 | 31 days |
| 1934 | 35 days |
| 1935 | 63 days |
| 1936 | 33 days |
| 1937 | 25 days |
| 1938 | 29 days |
| 1939 | 60 days |
| 1940 | 36 days |
| 1941 | 34 days |
| 1942 | 61 days |
| 1943 | 47 days |
| 1944 | 46 days |
| 1945 | 57 days |
| 1946 | 53 days |
| 1947 | 34 days |
| 1948 | 29 days |
| 1949 | 101 days |
| 1950 | 53 days |
| 1951 | 52 days |
| 1952 | 50 days |
| 1953 | 51 days |
| 1954 | 35 days |
| 1955 | 48 days |
| 1956 | 23 days |
| 1957 | 49 days |
| 1958 | 52 days |
| 1959 | 44 days |
| 1960 | 42 days |
| 1961 | 27 days |
| 1962 | 58 days |
| 1963 | 46 days |
| 1964 | 28 days |
| 1965 | 34 days |
| 1966 | 41 days |
| 1967 | 75 days |
| 1968 | 47 days |
| 1969 | 81 days |
| 1970 | 32 days |
| 1971 | 42 days |
| 1972 | 34 days |
| 1973 | 59 days |
| 1974 | 104 days |
| 1975 | 36 days |
| 1976 | 59 days |
| 1977 | 72 days |
| 1978 | 45 days |
| 1979 | 44 days |
| 1980 | 52 days |
| 1981 | 44 days |
| 1982 | 55 days |
| 1983 | 48 days |
| 1984 | 34 days |
| 1985 | 57 days |
| 1986 | 44 days |
| 1987 | 78 days |
| 1988 | 64 days |
| 1989 | 36 days |
| 1990 | 47 days |
| 1991 | 45 days |
| 1992 | 45 days |
| 1993 | 31 days |
| 1994 | 58 days |
| 1995 | 19 days |
| 1996 | 40 days |
| 1997 | 35 days |
| 1998 | 31 days |
| 1999 | 55 days |
| 2000 | 57 days |
| 2001 | 32 days |
| 2002 | 86 days |
| 2003 | 42 days |
| 2004 | 34 days |
| 2005 | 30 days |
| 2006 | 56 days |
| 2007 | 31 days |
| 2008 | 57 days |
| 2009 | 34 days |
| 2010 | 30 days |
| 2011 | 63 days |
| 2012 | 54 days |
| 2013 | 33 days |
| 2014 | 42 days |
| 2015 | 52 days |
| 2016 | 23 days |
| 2017 | 81 days |
| 2018 | 50 days |
| 2019 | 31 days |
| 2020 | 56 days |
| 2021 | 62 days |
| 2022 | 41 days |
| 2023 | 29 days |
| 2024 | 81 days |
| 2025 | 56 days |
| 2026 | 85 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
99 years with a frostAcross 99 years with a frost, the median last spring frost at Ritzville 1 SSE falls on 15 May and the median first autumn frost on 3 October, which leaves a median of 141 days between them.
In 1996 to 2025 the median growing season was 151 days. That is 20 days more than in 1917 to 1955.
Fitted over all years, the growing season changes by +2.9 days per decade at this station.
| Measure | Median, all years | Earliest period (1917 to 1955) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 15 May | 24 May | 9 May | 15 days earlier | -1.6 days per decade |
| First autumn frost | 3 October | 3 October | 10 October | 7 days later | +1.3 days per decade |
| Growing days | 141 days | 131 days | 151 days | 20 days more | +2.9 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
100 years, 1901 to 2025A day with at least 18.4 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 43.5 mm (1.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 18.4 mm (0.7 in) | |
| 5 years | 23.7 mm (0.9 in) | |
| 10 years | 27.7 mm (1.1 in) | |
| 25 years | 33.4 mm (1.3 in) | |
| 50 years | 38.2 mm (1.5 in) | |
| 100 years | 43.5 mm (1.7 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 100 years of values from 1901 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: 47.2 mm (1.9 in) in 1912; 44.2 mm (1.7 in) in 1993; 41.1 mm (1.6 in) in 2005.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Ritzville 1 SSE, at 1967. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1967 ran 0.3 C (0.5 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1967 | -0.3 | -0.5 | 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
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Ritzville 1 SSE had a mean temperature of 9.6 C (49.2 F) and 309.2 mm (12.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Paragonah (United States, 1,124 km away), Modena (United States, 1,098 km away) and Gallup Muni AP (United States, 1,516 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Paragonah | United States | 1,124 km (698 mi) | 9.2 C (48.6 F) | 328.7 mm (12.9 in) | 0.74 |
| Modena | United States | 1,098 km (682 mi) | 9.5 C (49.0 F) | 253.3 mm (10.0 in) | 0.74 |
| Gallup Muni AP | United States | 1,516 km (942 mi) | 9.3 C (48.7 F) | 286.9 mm (11.3 in) | 0.76 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).