Chewelah Weather Records (USC00451395)
Record envelope, standing records and threshold days for Chewelah (USC00451395), Washington, United States, with 101 years of record.
Key Facts for Chewelah
- Chewelah (USC00451395) is a weather station in Washington, United States at 48.27 latitude and -117.74 longitude, 501 m (1,644 ft) above sea level.
- The station reports from 1925 to 2025, 101 years of record.
- 1,464 records set at Chewelah still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Chewelah set a daily record precipitation of 30.5 mm (1.2 in) on 7 April 2025.
About the Station
- Location: Washington, United States, 48.27 latitude, -117.74 longitude.
- Elevation: 501 m (1,644 ft).
- Period of record: 1925 to 2025, 101 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 | 13.9 C (57.0 F) | -38.9 C (-38.0 F) | 4.4 C (39.9 F) | -13.9 C (7.0 F) |
| Feb | 16.7 C (62.1 F) | -38.9 C (-38.0 F) | 7.2 C (45.0 F) | -20.0 C (-4.0 F) |
| Mar | 25.0 C (77.0 F) | -29.4 C (-20.9 F) | 22.8 C (73.0 F) | -5.6 C (21.9 F) |
| Apr | 32.8 C (91.0 F) | -11.1 C (12.0 F) | 25.0 C (77.0 F) | -4.4 C (24.1 F) |
| May | 37.2 C (99.0 F) | -8.9 C (16.0 F) | 31.1 C (88.0 F) | -0.6 C (30.9 F) |
| Jun | 43.3 C (109.9 F) | -3.3 C (26.1 F) | 30.6 C (87.1 F) | 4.4 C (39.9 F) |
| Jul | 41.7 C (107.1 F) | -0.6 C (30.9 F) | n/a | n/a |
| Aug | 43.3 C (109.9 F) | -2.2 C (28.0 F) | n/a | n/a |
| Sep | 40.0 C (104.0 F) | -11.1 C (12.0 F) | n/a | n/a |
| Oct | 33.3 C (91.9 F) | -17.2 C (1.0 F) | n/a | n/a |
| Nov | 20.6 C (69.1 F) | -28.3 C (-18.9 F) | n/a | n/a |
| Dec | 15.6 C (60.1 F) | -36.1 C (-33.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1925 | 1 |
| 1926 | 23 |
| 1927 | 22 |
| 1928 | 16 |
| 1929 | 24 |
| 1930 | 15 |
| 1931 | 22 |
| 1932 | 18 |
| 1933 | 31 |
| 1934 | 29 |
| 1935 | 18 |
| 1936 | 34 |
| 1937 | 11 |
| 1938 | 7 |
| 1939 | 23 |
| 1940 | 13 |
| 1941 | 13 |
| 1942 | 7 |
| 1943 | 8 |
| 1944 | 11 |
| 1945 | 15 |
| 1946 | 13 |
| 1947 | 11 |
| 1948 | 11 |
| 1949 | 32 |
| 1950 | 38 |
| 1951 | 13 |
| 1952 | 10 |
| 1953 | 15 |
| 1954 | 18 |
| 1955 | 26 |
| 1956 | 20 |
| 1957 | 14 |
| 1958 | 20 |
| 1959 | 13 |
| 1960 | 15 |
| 1961 | 22 |
| 1962 | 21 |
| 1963 | 13 |
| 1964 | 16 |
| 1965 | 14 |
| 1966 | 12 |
| 1967 | 11 |
| 1968 | 12 |
| 1969 | 7 |
| 1970 | 7 |
| 1971 | 12 |
| 1972 | 14 |
| 1973 | 9 |
| 1974 | 16 |
| 1975 | 16 |
| 1976 | 1 |
| 1977 | 11 |
| 1978 | 9 |
| 1979 | 7 |
| 1980 | 12 |
| 1981 | 14 |
| 1982 | 12 |
| 1983 | 16 |
| 1984 | 13 |
| 1985 | 25 |
| 1986 | 17 |
| 1987 | 22 |
| 1988 | 19 |
| 1989 | 10 |
| 1990 | 16 |
| 1991 | 7 |
| 1992 | 34 |
| 1993 | 16 |
| 1994 | 10 |
| 1995 | 11 |
| 1996 | 7 |
| 1997 | 4 |
| 1998 | 7 |
| 1999 | 9 |
| 2000 | 4 |
| 2001 | 11 |
| 2002 | 24 |
| 2003 | 17 |
| 2004 | 6 |
| 2005 | 8 |
| 2006 | 15 |
| 2007 | 8 |
| 2008 | 11 |
| 2009 | 18 |
| 2010 | 11 |
| 2011 | 12 |
| 2012 | 11 |
| 2013 | 8 |
| 2014 | 13 |
| 2015 | 26 |
| 2016 | 10 |
| 2017 | 8 |
| 2018 | 16 |
| 2019 | 12 |
| 2020 | 10 |
| 2021 | 21 |
| 2022 | 11 |
| 2023 | 12 |
| 2024 | 16 |
| 2025 | 4 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1961-08-05 | Record high maximum temperature | Record high maximum temperature 43.3 C (109.9 F) |
| 1990-01-22 | Record daily precipitation | Record daily precipitation 69.9 mm (2.8 in) |
| 1994-07-25 | Record high minimum temperature | Record high minimum temperature 21.1 C (70.0 F) |
| 2002-07-14 | Record high minimum temperature | Record high minimum temperature 22.2 C (72.0 F) |
| 2009-01-05 | Record snow depth | Record snow depth 91.4 cm (36.0 in) |
Wettest Day of Each Month
Jan: 69.9 mm (2.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 69.9 mm (2.8 in) | 22 January 1990 |
| Feb | 38.1 mm (1.5 in) | 14 February 1990 |
| Mar | 61.2 mm (2.4 in) | 6 March 1939 |
| Apr | 33.0 mm (1.3 in) | 8 April 1983 |
| May | 59.7 mm (2.4 in) | 26 May 1998 |
| Jun | 40.6 mm (1.6 in) | 12 June 1992 |
| Jul | 43.2 mm (1.7 in) | 1 July 1955 |
| Aug | 48.3 mm (1.9 in) | 17 August 2004 |
| Sep | 47.5 mm (1.9 in) | 10 September 1927 |
| Oct | 45.5 mm (1.8 in) | 14 October 2016 |
| Nov | 50.8 mm (2.0 in) | 28 November 2005 |
| Dec | 63.5 mm (2.5 in) | 10 December 1992 |
Period of Record Coverage
1925 to 2025| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1925 | 59 | 16% | No |
| 1926 | 363 | 99% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 364 | 99% | Yes |
| 1929 | 356 | 98% | Yes |
| 1930 | 358 | 98% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 359 | 98% | Yes |
| 1933 | 362 | 99% | Yes |
| 1934 | 363 | 99% | Yes |
| 1935 | 361 | 99% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 359 | 98% | Yes |
| 1938 | 319 | 87% | No |
| 1939 | 364 | 100% | Yes |
| 1940 | 359 | 98% | Yes |
| 1941 | 359 | 98% | Yes |
| 1942 | 358 | 98% | Yes |
| 1943 | 354 | 97% | Yes |
| 1944 | 362 | 99% | Yes |
| 1945 | 360 | 99% | Yes |
| 1946 | 354 | 97% | Yes |
| 1947 | 350 | 96% | Yes |
| 1948 | 209 | 57% | No |
| 1949 | 362 | 99% | Yes |
| 1950 | 362 | 99% | Yes |
| 1951 | 363 | 99% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 336 | 92% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 360 | 99% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 334 | 92% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 334 | 92% | Yes |
| 1978 | 361 | 99% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 348 | 95% | Yes |
| 1983 | 361 | 99% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 361 | 99% | Yes |
| 1986 | 360 | 99% | Yes |
| 1987 | 330 | 90% | Yes |
| 1988 | 359 | 98% | Yes |
| 1989 | 355 | 97% | Yes |
| 1990 | 362 | 99% | Yes |
| 1991 | 359 | 98% | Yes |
| 1992 | 353 | 96% | Yes |
| 1993 | 352 | 96% | Yes |
| 1994 | 355 | 97% | Yes |
| 1995 | 354 | 97% | Yes |
| 1996 | 353 | 96% | Yes |
| 1997 | 353 | 97% | Yes |
| 1998 | 350 | 96% | Yes |
| 1999 | 355 | 97% | Yes |
| 2000 | 331 | 90% | Yes |
| 2001 | 354 | 97% | Yes |
| 2002 | 326 | 89% | No |
| 2003 | 351 | 96% | Yes |
| 2004 | 297 | 81% | No |
| 2005 | 303 | 83% | No |
| 2006 | 358 | 98% | Yes |
| 2007 | 354 | 97% | Yes |
| 2008 | 338 | 92% | Yes |
| 2009 | 346 | 95% | Yes |
| 2010 | 356 | 98% | Yes |
| 2011 | 364 | 100% | Yes |
| 2012 | 362 | 99% | Yes |
| 2013 | 338 | 93% | Yes |
| 2014 | 358 | 98% | Yes |
| 2015 | 353 | 97% | Yes |
| 2016 | 363 | 99% | Yes |
| 2017 | 336 | 92% | Yes |
| 2018 | 364 | 100% | Yes |
| 2019 | 364 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 345 | 95% | Yes |
| 2024 | 355 | 97% | Yes |
| 2025 | 143 | 39% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 7 April 2025 | Chewelah, US | daily rain | 30.5 mm (1.2 in) | 16.8 mm (0.7 in) | 8 years | 47 of 100 (Notable) |
| 29 March 2025 | Chewelah, US | daily high min (Tie) | 5.6 C (42.1 F) | tie | 91 years | 9 of 100 (Routine) |
| 28 March 2025 | Chewelah, US | daily high max | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 10 years | 14 of 100 (Routine) |
| 27 March 2025 | Chewelah, US | daily high min | 8.3 C (46.9 F) | 1.1 C (2.0 F) | 79 years | 35 of 100 (Notable) |
| 26 March 2025 | Chewelah, US | daily high max | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 64 years | 30 of 100 (Routine) |
| 24 February 2025 | Chewelah, US | daily rain | 33.0 mm (1.3 in) | 13.4 mm (0.5 in) | 68 years | 55 of 100 (Notable) |
| 12 February 2025 | Chewelah, US | daily low max | -8.3 C (17.1 F) | 2.2 C (4.0 F) | 89 years | 40 of 100 (Notable) |
| 3 February 2025 | Chewelah, US | daily rain | 25.4 mm (1.0 in) | 3.6 mm (0.14 in) | 62 years | 34 of 100 (Routine) |
| 7 January 2025 | Chewelah, US | daily high min (Tie) | 0.6 C (33.1 F) | tie | 71 years | 7 of 100 (Routine) |
| 8 September 2024 | Chewelah, US | daily high max | 36.7 C (98.1 F) | 1.1 C (2.0 F) | 66 years | 30 of 100 (Routine) |
| 7 September 2024 | Chewelah, US | daily high max | 36.7 C (98.1 F) | 0.6 C (1.1 F) | 80 years | 35 of 100 (Notable) |
| 3 August 2024 | Chewelah, US | daily high max | 39.4 C (102.9 F) | 0.5 C (0.9 F) | 63 years | 29 of 100 (Routine) |
| 10 July 2024 | Chewelah, US | daily high max (Tie) | 38.3 C (100.9 F) | tie | 39 years | 5 of 100 (Routine) |
| 16 June 2024 | Chewelah, US | daily low min | -0.6 C (30.9 F) | 1.2 C (2.2 F) | 69 years | 33 of 100 (Routine) |
| 16 May 2024 | Chewelah, US | daily low min | -5.6 C (21.9 F) | 2.3 C (4.1 F) | 47 years | 29 of 100 (Routine) |
| 6 April 2024 | Chewelah, US | daily low max | 5.6 C (42.1 F) | 1.1 C (2.0 F) | 49 years | 26 of 100 (Routine) |
| 20 March 2024 | Chewelah, US | daily high max | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 25 years | 18 of 100 (Routine) |
| 18 March 2024 | Chewelah, US | daily high max | 22.8 C (73.0 F) | 2.2 C (4.0 F) | 52 years | 29 of 100 (Routine) |
| 17 March 2024 | Chewelah, US | daily high max | 21.7 C (71.1 F) | 1.1 C (2.0 F) | 77 years | 35 of 100 (Notable) |
| 29 February 2024 | Chewelah, US | daily rain | 19.8 mm (0.8 in) | 10.9 mm (0.4 in) | 52 years | 20 of 100 (Routine) |
Climate Trend
85 complete years, 1926 to 2024| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1926 | 8.0 C | +0.04 C |
| 1927 | 6.6 C | -1.38 C |
| 1928 | 7.3 C | -0.68 C |
| 1930 | 7.1 C | -0.84 C |
| 1931 | 8.1 C | +0.14 C |
| 1932 | 7.1 C | -0.85 C |
| 1933 | 7.1 C | -0.85 C |
| 1934 | 9.3 C | +1.34 C |
| 1935 | 7.0 C | -0.94 C |
| 1936 | 7.2 C | -0.70 C |
| 1937 | 6.9 C | -1.09 C |
| 1939 | 8.0 C | +0.02 C |
| 1940 | 9.3 C | +1.33 C |
| 1941 | 9.2 C | +1.22 C |
| 1942 | 7.9 C | -0.08 C |
| 1943 | 7.4 C | -0.58 C |
| 1944 | 8.1 C | +0.15 C |
| 1945 | 8.2 C | +0.25 C |
| 1946 | 7.7 C | -0.21 C |
| 1949 | 6.5 C | -1.47 C |
| 1950 | 6.6 C | -1.30 C |
| 1951 | 7.2 C | -0.72 C |
| 1952 | 7.9 C | -0.03 C |
| 1953 | 9.1 C | +1.13 C |
| 1954 | 7.6 C | -0.31 C |
| 1955 | 6.4 C | -1.56 C |
| 1956 | 7.4 C | -0.54 C |
| 1957 | 7.3 C | -0.62 C |
| 1958 | 9.5 C | +1.54 C |
| 1959 | 7.1 C | -0.84 C |
| 1960 | 7.5 C | -0.47 C |
| 1961 | 8.2 C | +0.23 C |
| 1962 | 7.4 C | -0.53 C |
| 1963 | 8.0 C | +0.06 C |
| 1964 | 6.3 C | -1.63 C |
| 1965 | 7.4 C | -0.56 C |
| 1966 | 7.9 C | -0.07 C |
| 1967 | 8.5 C | +0.51 C |
| 1969 | 7.0 C | -0.96 C |
| 1970 | 7.3 C | -0.68 C |
| 1971 | 7.1 C | -0.83 C |
| 1972 | 7.2 C | -0.77 C |
| 1973 | 8.0 C | +0.06 C |
| 1974 | 8.1 C | +0.14 C |
| 1976 | 7.3 C | -0.64 C |
| 1978 | 6.9 C | -1.06 C |
| 1979 | 7.6 C | -0.31 C |
| 1980 | 8.4 C | +0.41 C |
| 1981 | 8.9 C | +0.98 C |
| 1982 | 8.0 C | +0.03 C |
| 1983 | 8.4 C | +0.49 C |
| 1984 | 7.4 C | -0.54 C |
| 1985 | 6.4 C | -1.56 C |
| 1986 | 8.8 C | +0.86 C |
| 1988 | 8.8 C | +0.82 C |
| 1989 | 8.5 C | +0.52 C |
| 1990 | 9.0 C | +1.02 C |
| 1991 | 8.6 C | +0.69 C |
| 1992 | 9.8 C | +1.89 C |
| 1993 | 7.5 C | -0.48 C |
| 1994 | 9.5 C | +1.54 C |
| 1995 | 9.1 C | +1.12 C |
| 1996 | 7.7 C | -0.27 C |
| 1997 | 8.7 C | +0.80 C |
| 1998 | 10.2 C | +2.21 C |
| 1999 | 9.1 C | +1.15 C |
| 2001 | 8.7 C | +0.80 C |
| 2003 | 9.7 C | +1.73 C |
| 2006 | 8.5 C | +0.59 C |
| 2007 | 8.0 C | +0.02 C |
| 2008 | 6.5 C | -1.40 C |
| 2009 | 6.8 C | -1.10 C |
| 2010 | 8.0 C | +0.09 C |
| 2011 | 7.0 C | -0.99 C |
| 2012 | 8.5 C | +0.56 C |
| 2013 | 8.1 C | +0.13 C |
| 2014 | 8.4 C | +0.44 C |
| 2015 | 9.4 C | +1.49 C |
| 2016 | 8.9 C | +0.97 C |
| 2018 | 8.3 C | +0.35 C |
| 2019 | 7.2 C | -0.70 C |
| 2020 | 8.4 C | +0.50 C |
| 2021 | 8.8 C | +0.83 C |
| 2022 | 7.2 C | -0.76 C |
| 2024 | 8.6 C | +0.69 C |
The annual mean temperature here has risen by 0.10 C (0.04 to 0.17) per decade over 1926 to 2024. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 85 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.10 C (0.04 to 0.17) per decade | 0.2 F (0.1 to 0.3) per decade | 1926 to 2024 | 85 | Rise |
| Mean daily maximum | 0.05 C (-0.03 to 0.12) per decade | 0.09 F (-0.05 to 0.22) per decade | 1926 to 2024 | 85 | Not clearly different from zero |
| Mean daily minimum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1926 to 2024 | 85 | 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
1925 to 2025| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.3 C (109.9 F) | 1961 | 38.3 C (100.9 F) | 101 |
| Coldest night (TNn) | -38.9 C (-38.0 F) | 1933 | -25.6 C (-14.1 F) | 101 |
| Wettest day (Rx1day) | 69.9 mm (2.8 in) | 1990 | 28.7 mm (1.1 in) | 101 |
| Wettest five days (Rx5day) | 109.5 mm (4.3 in) | 1927 | 48.8 mm (1.9 in) | 101 |
| Longest dry spell (CDD) | 95 days | 1929 | 30 days | 101 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1925 | 10.6 C (51.1 F) |
| 1926 | 38.3 C (100.9 F) |
| 1927 | 37.2 C (99.0 F) |
| 1928 | 39.4 C (102.9 F) |
| 1929 | 38.3 C (100.9 F) |
| 1930 | 40.6 C (105.1 F) |
| 1931 | 40.0 C (104.0 F) |
| 1932 | 38.3 C (100.9 F) |
| 1933 | 38.3 C (100.9 F) |
| 1934 | 41.7 C (107.1 F) |
| 1935 | 37.8 C (100.0 F) |
| 1936 | 39.4 C (102.9 F) |
| 1937 | 37.2 C (99.0 F) |
| 1938 | 40.0 C (104.0 F) |
| 1939 | 41.7 C (107.1 F) |
| 1940 | 41.7 C (107.1 F) |
| 1941 | 41.7 C (107.1 F) |
| 1942 | 38.9 C (102.0 F) |
| 1943 | 37.2 C (99.0 F) |
| 1944 | 38.9 C (102.0 F) |
| 1945 | 37.2 C (99.0 F) |
| 1946 | 38.3 C (100.9 F) |
| 1947 | 38.3 C (100.9 F) |
| 1948 | 33.9 C (93.0 F) |
| 1949 | 38.9 C (102.0 F) |
| 1950 | 37.8 C (100.0 F) |
| 1951 | 38.3 C (100.9 F) |
| 1952 | 38.3 C (100.9 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 35.0 C (95.0 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 38.3 C (100.9 F) |
| 1957 | 35.0 C (95.0 F) |
| 1958 | 39.4 C (102.9 F) |
| 1959 | 40.0 C (104.0 F) |
| 1960 | 40.0 C (104.0 F) |
| 1961 | 43.3 C (109.9 F) |
| 1962 | 37.2 C (99.0 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 37.8 C (100.0 F) |
| 1965 | 37.8 C (100.0 F) |
| 1966 | 38.3 C (100.9 F) |
| 1967 | 40.0 C (104.0 F) |
| 1968 | 37.8 C (100.0 F) |
| 1969 | 36.7 C (98.1 F) |
| 1970 | 37.8 C (100.0 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 38.3 C (100.9 F) |
| 1973 | 37.2 C (99.0 F) |
| 1974 | 35.6 C (96.1 F) |
| 1975 | 38.3 C (100.9 F) |
| 1976 | 34.4 C (93.9 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 37.2 C (99.0 F) |
| 1979 | 39.4 C (102.9 F) |
| 1980 | 37.8 C (100.0 F) |
| 1981 | 40.0 C (104.0 F) |
| 1982 | 38.9 C (102.0 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 38.3 C (100.9 F) |
| 1986 | 40.6 C (105.1 F) |
| 1987 | 38.3 C (100.9 F) |
| 1988 | 40.0 C (104.0 F) |
| 1989 | 37.8 C (100.0 F) |
| 1990 | 40.0 C (104.0 F) |
| 1991 | 38.3 C (100.9 F) |
| 1992 | 41.1 C (106.0 F) |
| 1993 | 36.7 C (98.1 F) |
| 1994 | 40.6 C (105.1 F) |
| 1995 | 39.4 C (102.9 F) |
| 1996 | 37.8 C (100.0 F) |
| 1997 | 38.9 C (102.0 F) |
| 1998 | 39.4 C (102.9 F) |
| 1999 | 37.8 C (100.0 F) |
| 2000 | 38.3 C (100.9 F) |
| 2001 | 38.9 C (102.0 F) |
| 2002 | 40.0 C (104.0 F) |
| 2003 | 40.0 C (104.0 F) |
| 2004 | 38.3 C (100.9 F) |
| 2005 | 37.8 C (100.0 F) |
| 2006 | 41.7 C (107.1 F) |
| 2007 | 40.6 C (105.1 F) |
| 2008 | 39.4 C (102.9 F) |
| 2009 | 38.9 C (102.0 F) |
| 2010 | 35.0 C (95.0 F) |
| 2011 | 36.7 C (98.1 F) |
| 2012 | 37.2 C (99.0 F) |
| 2013 | 36.7 C (98.1 F) |
| 2014 | 41.1 C (106.0 F) |
| 2015 | 41.7 C (107.1 F) |
| 2016 | 37.2 C (99.0 F) |
| 2017 | 38.3 C (100.9 F) |
| 2018 | 40.0 C (104.0 F) |
| 2019 | 37.8 C (100.0 F) |
| 2020 | 39.4 C (102.9 F) |
| 2021 | 43.3 C (109.9 F) |
| 2022 | 39.4 C (102.9 F) |
| 2023 | 39.4 C (102.9 F) |
| 2024 | 40.6 C (105.1 F) |
| 2025 | 31.1 C (88.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1925 | -11.7 C (10.9 F) |
| 1926 | -20.0 C (-4.0 F) |
| 1927 | -36.1 C (-33.0 F) |
| 1928 | -19.4 C (-2.9 F) |
| 1929 | -35.0 C (-31.0 F) |
| 1930 | -26.7 C (-16.1 F) |
| 1931 | -24.4 C (-11.9 F) |
| 1932 | -30.6 C (-23.1 F) |
| 1933 | -38.9 C (-38.0 F) |
| 1934 | -17.2 C (1.0 F) |
| 1935 | -37.2 C (-35.0 F) |
| 1936 | -33.3 C (-27.9 F) |
| 1937 | -36.1 C (-33.0 F) |
| 1938 | -17.8 C (0.0 F) |
| 1939 | -28.9 C (-20.0 F) |
| 1940 | -16.7 C (1.9 F) |
| 1941 | -14.4 C (6.1 F) |
| 1942 | -21.1 C (-6.0 F) |
| 1943 | -27.2 C (-17.0 F) |
| 1944 | -20.6 C (-5.1 F) |
| 1945 | -18.9 C (-2.0 F) |
| 1946 | -20.6 C (-5.1 F) |
| 1947 | -25.6 C (-14.1 F) |
| 1948 | -32.8 C (-27.0 F) |
| 1949 | -35.6 C (-32.1 F) |
| 1950 | -38.9 C (-38.0 F) |
| 1951 | -32.8 C (-27.0 F) |
| 1952 | -34.4 C (-29.9 F) |
| 1953 | -11.1 C (12.0 F) |
| 1954 | -31.7 C (-25.1 F) |
| 1955 | -27.8 C (-18.0 F) |
| 1956 | -30.6 C (-23.1 F) |
| 1957 | -37.8 C (-36.0 F) |
| 1958 | -23.9 C (-11.0 F) |
| 1959 | -22.2 C (-8.0 F) |
| 1960 | -29.4 C (-20.9 F) |
| 1961 | -27.2 C (-17.0 F) |
| 1962 | -35.0 C (-31.0 F) |
| 1963 | -25.6 C (-14.1 F) |
| 1964 | -28.3 C (-18.9 F) |
| 1965 | -20.0 C (-4.0 F) |
| 1966 | -21.1 C (-6.0 F) |
| 1967 | -20.6 C (-5.1 F) |
| 1968 | -32.8 C (-27.0 F) |
| 1969 | -33.3 C (-27.9 F) |
| 1970 | -23.9 C (-11.0 F) |
| 1971 | -26.7 C (-16.1 F) |
| 1972 | -28.9 C (-20.0 F) |
| 1973 | -20.0 C (-4.0 F) |
| 1974 | -27.2 C (-17.0 F) |
| 1975 | -25.6 C (-14.1 F) |
| 1976 | -19.4 C (-2.9 F) |
| 1977 | -22.2 C (-8.0 F) |
| 1978 | -33.9 C (-29.0 F) |
| 1979 | -33.3 C (-27.9 F) |
| 1980 | -27.8 C (-18.0 F) |
| 1981 | -16.7 C (1.9 F) |
| 1982 | -28.3 C (-18.9 F) |
| 1983 | -28.9 C (-20.0 F) |
| 1984 | -25.6 C (-14.1 F) |
| 1985 | -28.3 C (-18.9 F) |
| 1986 | -19.4 C (-2.9 F) |
| 1987 | -20.6 C (-5.1 F) |
| 1988 | -21.7 C (-7.1 F) |
| 1989 | -21.1 C (-6.0 F) |
| 1990 | -30.6 C (-23.1 F) |
| 1991 | -21.7 C (-7.1 F) |
| 1992 | -18.3 C (-0.9 F) |
| 1993 | -31.7 C (-25.1 F) |
| 1994 | -20.0 C (-4.0 F) |
| 1995 | -16.7 C (1.9 F) |
| 1996 | -30.0 C (-22.0 F) |
| 1997 | -19.4 C (-2.9 F) |
| 1998 | -20.6 C (-5.1 F) |
| 1999 | -11.1 C (12.0 F) |
| 2000 | -18.3 C (-0.9 F) |
| 2001 | -16.1 C (3.0 F) |
| 2002 | -15.0 C (5.0 F) |
| 2003 | -15.0 C (5.0 F) |
| 2004 | -28.3 C (-18.9 F) |
| 2005 | -27.8 C (-18.0 F) |
| 2006 | -21.7 C (-7.1 F) |
| 2007 | -20.0 C (-4.0 F) |
| 2008 | -30.0 C (-22.0 F) |
| 2009 | -31.7 C (-25.1 F) |
| 2010 | -21.1 C (-6.0 F) |
| 2011 | -22.8 C (-9.0 F) |
| 2012 | -16.7 C (1.9 F) |
| 2013 | -21.1 C (-6.0 F) |
| 2014 | -30.0 C (-22.0 F) |
| 2015 | -18.9 C (-2.0 F) |
| 2016 | -26.1 C (-15.0 F) |
| 2017 | -30.6 C (-23.1 F) |
| 2018 | -24.4 C (-11.9 F) |
| 2019 | -29.4 C (-20.9 F) |
| 2020 | -17.2 C (1.0 F) |
| 2021 | -20.6 C (-5.1 F) |
| 2022 | -32.8 C (-27.0 F) |
| 2023 | -18.9 C (-2.0 F) |
| 2024 | -28.9 C (-20.0 F) |
| 2025 | -20.0 C (-4.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1925 | 14.0 mm (0.6 in) |
| 1926 | 33.8 mm (1.3 in) |
| 1927 | 47.5 mm (1.9 in) |
| 1928 | 24.1 mm (0.9 in) |
| 1929 | 24.1 mm (0.9 in) |
| 1930 | 16.0 mm (0.6 in) |
| 1931 | 26.7 mm (1.1 in) |
| 1932 | 29.2 mm (1.1 in) |
| 1933 | 21.6 mm (0.9 in) |
| 1934 | 35.6 mm (1.4 in) |
| 1935 | 20.6 mm (0.8 in) |
| 1936 | 30.2 mm (1.2 in) |
| 1937 | 22.9 mm (0.9 in) |
| 1938 | 38.9 mm (1.5 in) |
| 1939 | 61.2 mm (2.4 in) |
| 1940 | 26.9 mm (1.1 in) |
| 1941 | 35.1 mm (1.4 in) |
| 1942 | 21.8 mm (0.9 in) |
| 1943 | 26.4 mm (1.0 in) |
| 1944 | 18.5 mm (0.7 in) |
| 1945 | 36.6 mm (1.4 in) |
| 1946 | 28.7 mm (1.1 in) |
| 1947 | 27.9 mm (1.1 in) |
| 1948 | 24.9 mm (1.0 in) |
| 1949 | 23.4 mm (0.9 in) |
| 1950 | 18.8 mm (0.7 in) |
| 1951 | 31.2 mm (1.2 in) |
| 1952 | 18.8 mm (0.7 in) |
| 1953 | 24.9 mm (1.0 in) |
| 1954 | 24.9 mm (1.0 in) |
| 1955 | 43.2 mm (1.7 in) |
| 1956 | 22.1 mm (0.9 in) |
| 1957 | 32.8 mm (1.3 in) |
| 1958 | 31.5 mm (1.2 in) |
| 1959 | 29.2 mm (1.1 in) |
| 1960 | 31.8 mm (1.3 in) |
| 1961 | 21.6 mm (0.9 in) |
| 1962 | 21.8 mm (0.9 in) |
| 1963 | 24.9 mm (1.0 in) |
| 1964 | 20.3 mm (0.8 in) |
| 1965 | 33.0 mm (1.3 in) |
| 1966 | 27.2 mm (1.1 in) |
| 1967 | 22.9 mm (0.9 in) |
| 1968 | 25.1 mm (1.0 in) |
| 1969 | 29.2 mm (1.1 in) |
| 1970 | 21.1 mm (0.8 in) |
| 1971 | 24.1 mm (0.9 in) |
| 1972 | 22.6 mm (0.9 in) |
| 1973 | 49.8 mm (2.0 in) |
| 1974 | 38.1 mm (1.5 in) |
| 1975 | 28.2 mm (1.1 in) |
| 1976 | 24.4 mm (1.0 in) |
| 1977 | 24.6 mm (1.0 in) |
| 1978 | 33.0 mm (1.3 in) |
| 1979 | 45.7 mm (1.8 in) |
| 1980 | 40.6 mm (1.6 in) |
| 1981 | 24.1 mm (0.9 in) |
| 1982 | 19.8 mm (0.8 in) |
| 1983 | 33.0 mm (1.3 in) |
| 1984 | 46.2 mm (1.8 in) |
| 1985 | 14.2 mm (0.6 in) |
| 1986 | 25.9 mm (1.0 in) |
| 1987 | 26.4 mm (1.0 in) |
| 1988 | 29.7 mm (1.2 in) |
| 1989 | 22.9 mm (0.9 in) |
| 1990 | 69.9 mm (2.8 in) |
| 1991 | 25.4 mm (1.0 in) |
| 1992 | 63.5 mm (2.5 in) |
| 1993 | 30.5 mm (1.2 in) |
| 1994 | 17.5 mm (0.7 in) |
| 1995 | 24.6 mm (1.0 in) |
| 1996 | 27.9 mm (1.1 in) |
| 1997 | 45.7 mm (1.8 in) |
| 1998 | 59.7 mm (2.4 in) |
| 1999 | 29.2 mm (1.1 in) |
| 2000 | 31.0 mm (1.2 in) |
| 2001 | 49.0 mm (1.9 in) |
| 2002 | 49.5 mm (1.9 in) |
| 2003 | 35.6 mm (1.4 in) |
| 2004 | 48.3 mm (1.9 in) |
| 2005 | 50.8 mm (2.0 in) |
| 2006 | 36.8 mm (1.4 in) |
| 2007 | 51.3 mm (2.0 in) |
| 2008 | 28.2 mm (1.1 in) |
| 2009 | 17.3 mm (0.7 in) |
| 2010 | 22.9 mm (0.9 in) |
| 2011 | 28.7 mm (1.1 in) |
| 2012 | 39.9 mm (1.6 in) |
| 2013 | 47.5 mm (1.9 in) |
| 2014 | 24.6 mm (1.0 in) |
| 2015 | 29.2 mm (1.1 in) |
| 2016 | 45.5 mm (1.8 in) |
| 2017 | 37.6 mm (1.5 in) |
| 2018 | 23.1 mm (0.9 in) |
| 2019 | 32.5 mm (1.3 in) |
| 2020 | 29.2 mm (1.1 in) |
| 2021 | 31.2 mm (1.2 in) |
| 2022 | 57.2 mm (2.3 in) |
| 2023 | 21.3 mm (0.8 in) |
| 2024 | 23.6 mm (0.9 in) |
| 2025 | 33.0 mm (1.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1925 | 29.2 mm (1.1 in) |
| 1926 | 59.2 mm (2.3 in) |
| 1927 | 109.5 mm (4.3 in) |
| 1928 | 28.0 mm (1.1 in) |
| 1929 | 43.9 mm (1.7 in) |
| 1930 | 36.8 mm (1.4 in) |
| 1931 | 50.6 mm (2.0 in) |
| 1932 | 60.0 mm (2.4 in) |
| 1933 | 59.4 mm (2.3 in) |
| 1934 | 54.3 mm (2.1 in) |
| 1935 | 32.5 mm (1.3 in) |
| 1936 | 36.5 mm (1.4 in) |
| 1937 | 62.6 mm (2.5 in) |
| 1938 | 51.0 mm (2.0 in) |
| 1939 | 51.8 mm (2.0 in) |
| 1940 | 40.4 mm (1.6 in) |
| 1941 | 54.6 mm (2.1 in) |
| 1942 | 48.7 mm (1.9 in) |
| 1943 | 51.3 mm (2.0 in) |
| 1944 | 38.7 mm (1.5 in) |
| 1945 | 51.9 mm (2.0 in) |
| 1946 | 38.9 mm (1.5 in) |
| 1947 | 59.9 mm (2.4 in) |
| 1948 | 39.7 mm (1.6 in) |
| 1949 | 34.3 mm (1.4 in) |
| 1950 | 43.1 mm (1.7 in) |
| 1951 | 59.1 mm (2.3 in) |
| 1952 | 51.0 mm (2.0 in) |
| 1953 | 42.4 mm (1.7 in) |
| 1954 | 40.1 mm (1.6 in) |
| 1955 | 82.5 mm (3.2 in) |
| 1956 | 37.3 mm (1.5 in) |
| 1957 | 72.6 mm (2.9 in) |
| 1958 | 48.2 mm (1.9 in) |
| 1959 | 77.2 mm (3.0 in) |
| 1960 | 71.1 mm (2.8 in) |
| 1961 | 65.3 mm (2.6 in) |
| 1962 | 51.1 mm (2.0 in) |
| 1963 | 42.7 mm (1.7 in) |
| 1964 | 44.4 mm (1.7 in) |
| 1965 | 55.4 mm (2.2 in) |
| 1966 | 64.2 mm (2.5 in) |
| 1967 | 44.7 mm (1.8 in) |
| 1968 | 59.7 mm (2.4 in) |
| 1969 | 57.2 mm (2.3 in) |
| 1970 | 45.5 mm (1.8 in) |
| 1971 | 48.1 mm (1.9 in) |
| 1972 | 47.8 mm (1.9 in) |
| 1973 | 100.6 mm (4.0 in) |
| 1974 | 70.5 mm (2.8 in) |
| 1975 | 45.4 mm (1.8 in) |
| 1976 | 40.4 mm (1.6 in) |
| 1977 | 44.1 mm (1.7 in) |
| 1978 | 47.0 mm (1.9 in) |
| 1979 | 47.5 mm (1.9 in) |
| 1980 | 48.1 mm (1.9 in) |
| 1981 | 43.9 mm (1.7 in) |
| 1982 | 57.4 mm (2.3 in) |
| 1983 | 46.5 mm (1.8 in) |
| 1984 | 78.2 mm (3.1 in) |
| 1985 | 28.1 mm (1.1 in) |
| 1986 | 36.1 mm (1.4 in) |
| 1987 | 59.5 mm (2.3 in) |
| 1988 | 48.8 mm (1.9 in) |
| 1989 | 36.8 mm (1.4 in) |
| 1990 | 71.9 mm (2.8 in) |
| 1991 | 41.2 mm (1.6 in) |
| 1992 | 73.2 mm (2.9 in) |
| 1993 | 42.5 mm (1.7 in) |
| 1994 | 61.2 mm (2.4 in) |
| 1995 | 62.9 mm (2.5 in) |
| 1996 | 56.7 mm (2.2 in) |
| 1997 | 58.4 mm (2.3 in) |
| 1998 | 84.1 mm (3.3 in) |
| 1999 | 51.3 mm (2.0 in) |
| 2000 | 50.1 mm (2.0 in) |
| 2001 | 55.1 mm (2.2 in) |
| 2002 | 82.0 mm (3.2 in) |
| 2003 | 28.7 mm (1.1 in) |
| 2004 | 53.1 mm (2.1 in) |
| 2005 | 36.1 mm (1.4 in) |
| 2006 | 68.9 mm (2.7 in) |
| 2007 | 53.1 mm (2.1 in) |
| 2008 | 41.2 mm (1.6 in) |
| 2009 | 54.2 mm (2.1 in) |
| 2010 | 69.6 mm (2.7 in) |
| 2011 | 33.1 mm (1.3 in) |
| 2012 | 67.8 mm (2.7 in) |
| 2013 | 48.8 mm (1.9 in) |
| 2014 | 29.0 mm (1.1 in) |
| 2015 | 57.2 mm (2.3 in) |
| 2016 | 44.8 mm (1.8 in) |
| 2017 | 40.6 mm (1.6 in) |
| 2018 | 45.0 mm (1.8 in) |
| 2019 | 32.5 mm (1.3 in) |
| 2020 | 42.4 mm (1.7 in) |
| 2021 | 50.0 mm (2.0 in) |
| 2022 | 43.0 mm (1.7 in) |
| 2023 | 56.4 mm (2.2 in) |
| 2024 | 40.7 mm (1.6 in) |
| 2025 | 33.0 mm (1.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1925 | 28 days |
| 1926 | 46 days |
| 1927 | 44 days |
| 1928 | 60 days |
| 1929 | 95 days |
| 1930 | 28 days |
| 1931 | 55 days |
| 1932 | 35 days |
| 1933 | 26 days |
| 1934 | 36 days |
| 1935 | 28 days |
| 1936 | 59 days |
| 1937 | 40 days |
| 1938 | 51 days |
| 1939 | 41 days |
| 1940 | 47 days |
| 1941 | 26 days |
| 1942 | 26 days |
| 1943 | 37 days |
| 1944 | 48 days |
| 1945 | 54 days |
| 1946 | 34 days |
| 1947 | 19 days |
| 1948 | 29 days |
| 1949 | 23 days |
| 1950 | 33 days |
| 1951 | 48 days |
| 1952 | 44 days |
| 1953 | 27 days |
| 1954 | 28 days |
| 1955 | 46 days |
| 1956 | 30 days |
| 1957 | 23 days |
| 1958 | 28 days |
| 1959 | 39 days |
| 1960 | 42 days |
| 1961 | 26 days |
| 1962 | 39 days |
| 1963 | 27 days |
| 1964 | 20 days |
| 1965 | 28 days |
| 1966 | 28 days |
| 1967 | 58 days |
| 1968 | 25 days |
| 1969 | 71 days |
| 1970 | 31 days |
| 1971 | 24 days |
| 1972 | 30 days |
| 1973 | 60 days |
| 1974 | 50 days |
| 1975 | 16 days |
| 1976 | 22 days |
| 1977 | 28 days |
| 1978 | 35 days |
| 1979 | 44 days |
| 1980 | 33 days |
| 1981 | 27 days |
| 1982 | 20 days |
| 1983 | 28 days |
| 1984 | 34 days |
| 1985 | 53 days |
| 1986 | 49 days |
| 1987 | 31 days |
| 1988 | 45 days |
| 1989 | 41 days |
| 1990 | 42 days |
| 1991 | 45 days |
| 1992 | 26 days |
| 1993 | 19 days |
| 1994 | 34 days |
| 1995 | 17 days |
| 1996 | 17 days |
| 1997 | 22 days |
| 1998 | 39 days |
| 1999 | 19 days |
| 2000 | 45 days |
| 2001 | 31 days |
| 2002 | 47 days |
| 2003 | 36 days |
| 2004 | 21 days |
| 2005 | 33 days |
| 2006 | 40 days |
| 2007 | 31 days |
| 2008 | 26 days |
| 2009 | 23 days |
| 2010 | 24 days |
| 2011 | 11 days |
| 2012 | 12 days |
| 2013 | 7 days |
| 2014 | 10 days |
| 2015 | 29 days |
| 2016 | 8 days |
| 2017 | 22 days |
| 2018 | 7 days |
| 2019 | 15 days |
| 2020 | 19 days |
| 2021 | 8 days |
| 2022 | 6 days |
| 2023 | 34 days |
| 2024 | 16 days |
| 2025 | 30 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
85 years with a frostAcross 85 years with a frost, the median last spring frost at Chewelah falls on 22 May and the median first autumn frost on 7 September, which leaves a median of 110 days between them.
In 1989 to 2024 the median growing season was 122 days. That is 44 days more than in 1926 to 1959.
Fitted over all years, the growing season changes by +6.8 days per decade at this station.
| Measure | Median, all years | Earliest period (1926 to 1959) | Recent period (1989 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 22 May | 2 June | 15 May | 18 days earlier | -2.8 days per decade |
| First autumn frost | 7 September | 20 August | 19 September | 30 days later | +4.0 days per decade |
| Growing days | 110 days | 78 days | 122 days | 44 days more | +6.8 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
70 years, 1926 to 2010A day with at least 27.0 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 69.7 mm (2.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 27.0 mm (1.1 in) | |
| 5 years | 35.4 mm (1.4 in) | |
| 10 years | 42.0 mm (1.7 in) | |
| 25 years | 51.8 mm (2.0 in) | |
| 50 years | 60.2 mm (2.4 in) | |
| 100 years | 69.7 mm (2.7 in) | Longer than the 70 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 70 years of values from 1926 to 2010.
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: 69.9 mm (2.8 in) in 1990; 59.7 mm (2.4 in) in 1998; 51.3 mm (2.0 in) in 2007.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).