Cascade 20 SSE Threshold Days by Year (USC00241557)
17 fixed thresholds counted per year at Cascade 20 SSE (USC00241557): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Cascade 20 SSE Thresholds
- Cascade 20 SSE: days with a maximum temperature at or above 30 C (86 F) in 56 years, most in 1988 with 48.
- Cascade 20 SSE: days with a maximum temperature at or below 0 C (32 F) in 56 years, most in 1978 with 57.
- Cascade 20 SSE: nights with a minimum temperature at or below 0 C (32 F) in 55 years, most in 1970 with 227.
- Cascade 20 SSE: nights with a minimum temperature at or below -10 C (14 F) in 55 years, most in 1978 with 87.
- 17 fixed thresholds have at least one qualifying day at Cascade 20 SSE.
Days at or above 30 C (86 F)
56 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1957 | 11 | 14.3 |
| 1958 | 12 | 14.3 |
| 1959 | 20 | 14.3 |
| 1960 | 25 | 19.3 |
| 1961 | 32 | 19.3 |
| 1962 | 4 | 19.3 |
| 1963 | 15 | 19.3 |
| 1964 | 13 | 19.3 |
| 1965 | 8 | 19.3 |
| 1966 | 29 | 19.3 |
| 1967 | 29 | 19.3 |
| 1968 | 13 | 19.3 |
| 1969 | 25 | 19.3 |
| 1970 | 32 | 19.4 |
| 1971 | 33 | 19.4 |
| 1972 | 15 | 19.4 |
| 1973 | 24 | 19.4 |
| 1974 | 19 | 19.4 |
| 1975 | 11 | 19.4 |
| 1976 | 14 | 19.4 |
| 1977 | 10 | 19.4 |
| 1978 | 16 | 19.4 |
| 1979 | 20 | 19.4 |
| 1980 | 7 | 24.5 |
| 1981 | 26 | 24.5 |
| 1982 | 22 | 24.5 |
| 1983 | 24 | 24.5 |
| 1984 | 25 | 24.5 |
| 1985 | 29 | 24.5 |
| 1986 | 19 | 24.5 |
| 1987 | 26 | 24.5 |
| 1988 | 48 | 24.5 |
| 1989 | 19 | 24.5 |
| 1990 | 25 | 22.8 |
| 1991 | 25 | 22.8 |
| 1992 | 18 | 22.8 |
| 1993 | 3 | 22.8 |
| 1994 | 31 | 22.8 |
| 1995 | 16 | 22.8 |
| 1996 | 32 | 22.8 |
| 1997 | 11 | 22.8 |
| 1998 | 39 | 22.8 |
| 1999 | 28 | 22.8 |
| 2000 | 34 | 28.3 |
| 2001 | 37 | 28.3 |
| 2002 | 19 | 28.3 |
| 2003 | 47 | 28.3 |
| 2004 | 14 | 28.3 |
| 2005 | 14 | 28.3 |
| 2006 | 37 | 28.3 |
| 2007 | 36 | 28.3 |
| 2008 | 26 | 28.3 |
| 2009 | 19 | 28.3 |
| 2010 | 7 | 19.7 |
| 2011 | 20 | 19.7 |
| 2012 | 32 | 19.7 |
| Year | First date | Last date |
|---|---|---|
| 1957 | 1957-07-09 | 1957-08-08 |
| 1958 | 1958-08-01 | 1958-09-11 |
| 1959 | 1959-06-12 | 1959-09-13 |
| 1960 | 1960-07-07 | 1960-08-22 |
| 1961 | 1961-06-16 | 1961-08-24 |
| 1962 | 1962-06-25 | 1962-08-16 |
| 1963 | 1963-07-07 | 1963-09-12 |
| 1964 | 1964-06-26 | 1964-08-18 |
| 1965 | 1965-07-27 | 1965-08-11 |
| 1966 | 1966-05-26 | 1966-09-23 |
| 1967 | 1967-07-12 | 1967-09-29 |
| 1968 | 1968-06-19 | 1968-09-10 |
| 1969 | 1969-06-04 | 1969-09-02 |
| 1970 | 1970-06-03 | 1970-08-31 |
| 1971 | 1971-06-22 | 1971-09-08 |
| 1972 | 1972-06-06 | 1972-08-29 |
| 1973 | 1973-06-22 | 1973-09-06 |
| 1974 | 1974-06-16 | 1974-08-05 |
| 1975 | 1975-07-04 | 1975-08-06 |
| 1976 | 1976-06-30 | 1976-09-05 |
| 1977 | 1977-06-01 | 1977-08-18 |
| 1978 | 1978-06-29 | 1978-09-03 |
| 1979 | 1979-06-12 | 1979-09-08 |
| 1980 | 1980-05-22 | 1980-09-06 |
| 1981 | 1981-06-26 | 1981-09-19 |
| 1982 | 1982-07-20 | 1982-09-09 |
| 1983 | 1983-05-28 | 1983-09-02 |
| 1984 | 1984-06-28 | 1984-09-18 |
| 1985 | 1985-06-07 | 1985-08-29 |
| 1986 | 1986-05-30 | 1986-08-28 |
| 1987 | 1987-06-05 | 1987-09-23 |
| 1988 | 1988-05-16 | 1988-09-05 |
| 1989 | 1989-06-29 | 1989-08-14 |
| 1990 | 1990-06-24 | 1990-09-12 |
| 1991 | 1991-07-13 | 1991-09-06 |
| 1992 | 1992-06-10 | 1992-10-01 |
| 1993 | 1993-07-29 | 1993-08-10 |
| 1994 | 1994-06-30 | 1994-09-09 |
| 1995 | 1995-06-25 | 1995-09-04 |
| 1996 | 1996-06-07 | 1996-08-31 |
| 1997 | 1997-07-15 | 1997-09-24 |
| 1998 | 1998-05-04 | 1998-09-17 |
| 1999 | 1999-07-07 | 1999-08-31 |
| 2000 | 2000-06-05 | 2000-09-16 |
| 2001 | 2001-05-12 | 2001-09-25 |
| 2002 | 2002-06-26 | 2002-09-16 |
| 2003 | 2003-05-28 | 2003-09-05 |
| 2004 | 2004-07-13 | 2004-09-01 |
| 2005 | 2005-06-21 | 2005-09-08 |
| 2006 | 2006-06-27 | 2006-09-03 |
| 2007 | 2007-06-22 | 2007-09-03 |
| 2008 | 2008-06-29 | 2008-08-30 |
| 2009 | 2009-07-17 | 2009-09-25 |
| 2010 | 2010-07-16 | 2010-10-03 |
| 2011 | 2011-06-28 | 2011-09-25 |
| 2012 | 2012-07-07 | 2012-09-09 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 56 | 48 | 1988 | 32 |
| 35 C (95 F): Days | 25 | 10 | 2003 | 10 |
| 90 F (32.2 C): Days | 54 | 28 | 2003 | 9 |
| 100 F (37.8 C): Days | 1 | 1 | 1961 | 1 |
| 0 C (32 F): Ice days (max | 56 | 57 | 1978 | 35 |
| 0 C (32 F): Frost days (min | 55 | 227 | 1970 | 187 |
| -10 C (14 F): Days with min | 55 | 87 | 1978 | 50 |
| -20 C (-4 F): Days with min | 55 | 44 | 1996 | 11 |
| -30 C (-22 F): Days with min | 47 | 15 | 1985 | 3 |
| -40 C (-40 F): Days with min | 4 | 3 | 1968 | 2 |
| 20 C (68 F): Tropical nights (min | 1 | 1 | 2007 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 55 | 20 | 1975 | 5 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 41 | 5 | 1975 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 5 | 1 | 1957 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 19 | 12 | 1984 | 4 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 6 | 2 | 1982 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 2005 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.
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 (2025-12-31).