Sedro-Woolley Threshold Days by Year (USC00457507)
13 fixed thresholds counted per year at Sedro-Woolley (USC00457507): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Sedro-Woolley Thresholds
- Sedro-Woolley: nights with a minimum temperature at or below 0 C (32 F) in 120 years, most in 1916 with 107.
- Sedro-Woolley: days with 10 mm (0.39 in) or more of precipitation in 117 years, most in 2014 with 58.
- Sedro-Woolley: days with 25 mm (0.98 in) or more of precipitation in 117 years, most in 1959 with 19.
- Sedro-Woolley: days with a maximum temperature at or above 30 C (86 F) in 107 years, most in 1914 with 28.
- 13 fixed thresholds have at least one qualifying day at Sedro-Woolley.
Days at or above 30 C (86 F)
107 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1897 | 9 | 10 |
| 1898 | 11 | 10 |
| 1901 | 5 | 6.8 |
| 1903 | 2 | 6.8 |
| 1904 | 5 | 6.8 |
| 1905 | 3 | 6.8 |
| 1906 | 6 | 6.8 |
| 1907 | 4 | 6.8 |
| 1908 | 16 | 6.8 |
| 1909 | 13 | 6.8 |
| 1910 | 20 | 13.7 |
| 1911 | 11 | 13.7 |
| 1912 | 6 | 13.7 |
| 1913 | 2 | 13.7 |
| 1914 | 28 | 13.7 |
| 1915 | 23 | 13.7 |
| 1916 | 13 | 13.7 |
| 1917 | 28 | 13.7 |
| 1918 | 5 | 13.7 |
| 1919 | 1 | 13.7 |
| 1920 | 5 | 2.9 |
| 1922 | 3 | 2.9 |
| 1923 | 3 | 2.9 |
| 1924 | 3 | 2.9 |
| 1925 | 2 | 2.9 |
| 1926 | 4 | 2.9 |
| 1927 | 4 | 2.9 |
| 1928 | 1 | 2.9 |
| 1929 | 1 | 2.9 |
| 1931 | 1 | 1.9 |
| 1933 | 3 | 1.9 |
| 1934 | 2 | 1.9 |
| 1935 | 1 | 1.9 |
| 1936 | 1 | 1.9 |
| 1937 | 1 | 1.9 |
| 1938 | 2 | 1.9 |
| 1939 | 4 | 1.9 |
| 1941 | 5 | 6.1 |
| 1942 | 7 | 6.1 |
| 1943 | 3 | 6.1 |
| 1944 | 6 | 6.1 |
| 1945 | 16 | 6.1 |
| 1946 | 4 | 6.1 |
| 1949 | 2 | 6.1 |
| 1950 | 3 | 6.4 |
| 1951 | 7 | 6.4 |
| 1952 | 6 | 6.4 |
| 1953 | 3 | 6.4 |
| 1955 | 1 | 6.4 |
| 1956 | 7 | 6.4 |
| 1958 | 20 | 6.4 |
| 1959 | 4 | 6.4 |
| 1960 | 9 | 4.9 |
| 1961 | 4 | 4.9 |
| 1963 | 1 | 4.9 |
| 1965 | 4 | 4.9 |
| 1967 | 11 | 4.9 |
| 1968 | 2 | 4.9 |
| 1969 | 3 | 4.9 |
| 1970 | 3 | 4.3 |
| 1971 | 6 | 4.3 |
| 1972 | 2 | 4.3 |
| 1973 | 2 | 4.3 |
| 1974 | 3 | 4.3 |
| 1977 | 7 | 4.3 |
| 1978 | 5 | 4.3 |
| 1979 | 6 | 4.3 |
| 1981 | 6 | 3.6 |
| 1982 | 2 | 3.6 |
| 1983 | 2 | 3.6 |
| 1984 | 1 | 3.6 |
| 1985 | 10 | 3.6 |
| 1986 | 1 | 3.6 |
| 1987 | 2 | 3.6 |
| 1988 | 5 | 3.6 |
| 1990 | 5 | 2.5 |
| 1991 | 1 | 2.5 |
| 1992 | 3 | 2.5 |
| 1993 | 1 | 2.5 |
| 1994 | 3 | 2.5 |
| 1996 | 4 | 2.5 |
| 1997 | 2 | 2.5 |
| 1999 | 1 | 2.5 |
| 2000 | 1 | 3.9 |
| 2002 | 3 | 3.9 |
| 2003 | 9 | 3.9 |
| 2004 | 5 | 3.9 |
| 2005 | 1 | 3.9 |
| 2006 | 4 | 3.9 |
| 2007 | 2 | 3.9 |
| 2008 | 2 | 3.9 |
| 2009 | 8 | 3.9 |
| 2010 | 5 | 4.4 |
| 2012 | 2 | 4.4 |
| 2013 | 2 | 4.4 |
| 2014 | 4 | 4.4 |
| 2015 | 8 | 4.4 |
| 2016 | 4 | 4.4 |
| 2017 | 3 | 4.4 |
| 2018 | 7 | 4.4 |
| 2020 | 2 | 4.3 |
| 2021 | 7 | 4.3 |
| 2022 | 10 | 4.3 |
| 2023 | 4 | 4.3 |
| 2024 | 4 | 4.3 |
| 2025 | 2 | 4.3 |
| 2026 | 1 | 4.3 |
| Year | First date | Last date |
|---|---|---|
| 1897 | 1897-05-28 | 1897-09-15 |
| 1898 | 1898-05-25 | 1898-08-10 |
| 1901 | 1901-06-18 | 1901-09-19 |
| 1903 | 1903-06-08 | 1903-07-21 |
| 1904 | 1904-06-29 | 1904-07-22 |
| 1905 | 1905-07-08 | 1905-07-25 |
| 1906 | 1906-06-24 | 1906-07-14 |
| 1907 | 1907-07-20 | 1907-07-31 |
| 1908 | 1908-06-30 | 1908-08-22 |
| 1909 | 1909-06-07 | 1909-09-05 |
| 1910 | 1910-04-23 | 1910-08-21 |
| 1911 | 1911-06-10 | 1911-07-28 |
| 1912 | 1912-05-14 | 1912-07-18 |
| 1913 | 1913-08-01 | 1913-08-10 |
| 1914 | 1914-06-14 | 1914-08-19 |
| 1915 | 1915-06-04 | 1915-07-24 |
| 1916 | 1916-05-16 | 1916-08-26 |
| 1917 | 1917-06-15 | 1917-08-16 |
| 1918 | 1918-07-17 | 1918-09-28 |
| 1919 | 1919-08-16 | 1919-08-16 |
| 1920 | 1920-06-03 | 1920-08-12 |
| 1922 | 1922-05-31 | 1922-07-04 |
| 1923 | 1923-08-15 | 1923-08-17 |
| 1924 | 1924-07-24 | 1924-09-12 |
| 1925 | 1925-06-25 | 1925-06-26 |
| 1926 | 1926-05-12 | 1926-07-12 |
| 1927 | 1927-07-16 | 1927-08-02 |
| 1928 | 1928-07-26 | 1928-07-26 |
| 1929 | 1929-09-05 | 1929-09-05 |
| 1931 | 1931-08-09 | 1931-08-09 |
| 1933 | 1933-08-24 | 1933-08-26 |
| 1934 | 1934-08-25 | 1934-08-26 |
| 1935 | 1935-08-27 | 1935-08-27 |
| 1936 | 1936-08-28 | 1936-08-28 |
| 1937 | 1937-09-14 | 1937-09-14 |
| 1938 | 1938-07-14 | 1938-07-21 |
| 1939 | 1939-08-03 | 1939-08-10 |
| 1941 | 1941-07-14 | 1941-07-18 |
| 1942 | 1942-07-01 | 1942-08-16 |
| 1943 | 1943-07-21 | 1943-09-24 |
| 1944 | 1944-07-18 | 1944-09-10 |
| 1945 | 1945-06-20 | 1945-08-22 |
| 1946 | 1946-07-20 | 1946-09-10 |
| 1949 | 1949-08-01 | 1949-09-07 |
| 1950 | 1950-08-20 | 1950-09-21 |
| 1951 | 1951-06-29 | 1951-09-15 |
| 1952 | 1952-07-14 | 1952-09-21 |
| 1953 | 1953-05-05 | 1953-09-05 |
| 1955 | 1955-06-09 | 1955-06-09 |
| 1956 | 1956-07-18 | 1956-09-06 |
| 1958 | 1958-06-17 | 1958-08-25 |
| 1959 | 1959-05-13 | 1959-07-31 |
| 1960 | 1960-07-06 | 1960-08-10 |
| 1961 | 1961-07-11 | 1961-08-11 |
| 1963 | 1963-05-21 | 1963-05-21 |
| 1965 | 1965-07-30 | 1965-08-02 |
| 1967 | 1967-06-20 | 1967-09-17 |
| 1968 | 1968-08-01 | 1968-08-02 |
| 1969 | 1969-05-24 | 1969-06-19 |
| 1970 | 1970-06-02 | 1970-07-16 |
| 1971 | 1971-07-27 | 1971-08-12 |
| 1972 | 1972-08-08 | 1972-08-09 |
| 1973 | 1973-07-29 | 1973-09-06 |
| 1974 | 1974-08-30 | 1974-09-15 |
| 1977 | 1977-08-10 | 1977-08-18 |
| 1978 | 1978-07-22 | 1978-08-09 |
| 1979 | 1979-07-17 | 1979-09-15 |
| 1981 | 1981-08-08 | 1981-09-08 |
| 1982 | 1982-06-19 | 1982-06-20 |
| 1983 | 1983-05-29 | 1983-05-30 |
| 1984 | 1984-07-25 | 1984-07-25 |
| 1985 | 1985-07-09 | 1985-08-18 |
| 1986 | 1986-09-07 | 1986-09-07 |
| 1987 | 1987-06-30 | 1987-10-02 |
| 1988 | 1988-07-21 | 1988-09-04 |
| 1990 | 1990-07-22 | 1990-08-13 |
| 1991 | 1991-07-24 | 1991-07-24 |
| 1992 | 1992-08-01 | 1992-08-15 |
| 1993 | 1993-08-05 | 1993-08-05 |
| 1994 | 1994-07-21 | 1994-07-23 |
| 1996 | 1996-07-28 | 1996-08-30 |
| 1997 | 1997-08-15 | 1997-08-18 |
| 1999 | 1999-06-13 | 1999-06-13 |
| 2000 | 2000-07-01 | 2000-07-01 |
| 2002 | 2002-07-24 | 2002-08-15 |
| 2003 | 2003-06-07 | 2003-07-30 |
| 2004 | 2004-07-19 | 2004-08-11 |
| 2005 | 2005-08-15 | 2005-08-15 |
| 2006 | 2006-07-22 | 2006-07-25 |
| 2007 | 2007-07-11 | 2007-07-12 |
| 2008 | 2008-05-18 | 2008-08-16 |
| 2009 | 2009-07-18 | 2009-08-03 |
| 2010 | 2010-07-09 | 2010-08-17 |
| 2012 | 2012-08-06 | 2012-08-18 |
| 2013 | 2013-07-01 | 2013-07-17 |
| 2014 | 2014-07-13 | 2014-08-12 |
| 2015 | 2015-06-28 | 2015-08-20 |
| 2016 | 2016-08-14 | 2016-08-27 |
| 2017 | 2017-08-23 | 2017-09-29 |
| 2018 | 2018-06-19 | 2018-08-11 |
| 2020 | 2020-07-28 | 2020-08-17 |
| 2021 | 2021-06-26 | 2021-07-31 |
| 2022 | 2022-06-28 | 2022-09-01 |
| 2023 | 2023-07-07 | 2023-08-17 |
| 2024 | 2024-07-07 | 2024-07-10 |
| 2025 | 2025-07-17 | 2025-08-13 |
| 2026 | 2026-08-26 | 2026-08-26 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 107 | 28 | 1914 | 1 |
| 35 C (95 F): Days | 11 | 3 | 1914 | 3 |
| 90 F (32.2 C): Days | 51 | 11 | 1915 | 1 |
| 0 C (32 F): Ice days (max | 87 | 20 | 1916 | 4 |
| 0 C (32 F): Frost days (min | 120 | 107 | 1916 | 27 |
| -10 C (14 F): Days with min | 61 | 23 | 1950 | 4 |
| 20 C (68 F): Tropical nights (min | 5 | 3 | 1898 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 117 | 58 | 2014 | 24 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 117 | 19 | 1959 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 48 | 3 | 1911 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1911 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 30 | 7 | 1951 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 5 | 1 | 1936 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.
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). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-12).