N Willamette Exp STN Threshold Days by Year
14 fixed thresholds counted per year at N Willamette Exp STN (USC00356151): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for N Willamette Exp STN Thresholds
- N Willamette Exp STN: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 1967 with 50.
- N Willamette Exp STN: days with a maximum temperature at or above 90 F (32.2 C) in 42 years, most in 1967 with 28.
- N Willamette Exp STN: nights with a minimum temperature at or below 0 C (32 F) in 42 years, most in 1985 with 114.
- N Willamette Exp STN: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1996 with 66.
- 14 fixed thresholds have at least one qualifying day at N Willamette Exp STN.
Days at or above 30 C (86 F)
42 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1963 | 13 | 22 |
| 1964 | 10 | 22 |
| 1965 | 23 | 22 |
| 1966 | 16 | 22 |
| 1967 | 50 | 22 |
| 1968 | 22 | 22 |
| 1969 | 20 | 22 |
| 1970 | 39 | 26.5 |
| 1971 | 23 | 26.5 |
| 1972 | 30 | 26.5 |
| 1973 | 25 | 26.5 |
| 1974 | 36 | 26.5 |
| 1975 | 25 | 26.5 |
| 1976 | 14 | 26.5 |
| 1977 | 27 | 26.5 |
| 1978 | 23 | 26.5 |
| 1979 | 23 | 26.5 |
| 1980 | 16 | 25.9 |
| 1981 | 32 | 25.9 |
| 1982 | 24 | 25.9 |
| 1983 | 10 | 25.9 |
| 1984 | 17 | 25.9 |
| 1985 | 34 | 25.9 |
| 1986 | 36 | 25.9 |
| 1987 | 40 | 25.9 |
| 1988 | 28 | 25.9 |
| 1989 | 22 | 25.9 |
| 1990 | 34 | 31.9 |
| 1991 | 33 | 31.9 |
| 1992 | 44 | 31.9 |
| 1993 | 24 | 31.9 |
| 1994 | 30 | 31.9 |
| 1995 | 28 | 31.9 |
| 1996 | 31 | 31.9 |
| 1997 | 26 | 31.9 |
| 1998 | 40 | 31.9 |
| 1999 | 29 | 31.9 |
| 2000 | 20 | 33 |
| 2003 | 41 | 33 |
| 2004 | 35 | 33 |
| 2005 | 28 | 33 |
| 2006 | 41 | 33 |
| Year | First date | Last date |
|---|---|---|
| 1963 | 1963-05-20 | 1963-09-28 |
| 1964 | 1964-07-12 | 1964-08-25 |
| 1965 | 1965-07-01 | 1965-09-25 |
| 1966 | 1966-05-05 | 1966-09-23 |
| 1967 | 1967-05-21 | 1967-09-28 |
| 1968 | 1968-06-25 | 1968-09-06 |
| 1969 | 1969-05-08 | 1969-09-12 |
| 1970 | 1970-05-26 | 1970-10-03 |
| 1971 | 1971-05-12 | 1971-08-29 |
| 1972 | 1972-05-28 | 1972-09-04 |
| 1973 | 1973-05-14 | 1973-09-11 |
| 1974 | 1974-06-12 | 1974-09-26 |
| 1975 | 1975-06-01 | 1975-10-01 |
| 1976 | 1976-06-19 | 1976-09-21 |
| 1977 | 1977-06-06 | 1977-09-13 |
| 1978 | 1978-06-03 | 1978-08-30 |
| 1979 | 1979-06-02 | 1979-10-04 |
| 1980 | 1980-07-08 | 1980-10-07 |
| 1981 | 1981-06-26 | 1981-09-17 |
| 1982 | 1982-05-25 | 1982-09-03 |
| 1983 | 1983-05-24 | 1983-08-15 |
| 1984 | 1984-05-29 | 1984-09-18 |
| 1985 | 1985-06-12 | 1985-08-27 |
| 1986 | 1986-05-30 | 1986-09-07 |
| 1987 | 1987-04-27 | 1987-10-07 |
| 1988 | 1988-05-22 | 1988-10-02 |
| 1989 | 1989-06-04 | 1989-09-29 |
| 1990 | 1990-05-05 | 1990-09-23 |
| 1991 | 1991-07-03 | 1991-10-11 |
| 1992 | 1992-05-04 | 1992-09-23 |
| 1993 | 1993-05-20 | 1993-10-03 |
| 1994 | 1994-07-08 | 1994-09-28 |
| 1995 | 1995-05-29 | 1995-09-23 |
| 1996 | 1996-06-03 | 1996-10-10 |
| 1997 | 1997-05-12 | 1997-09-25 |
| 1998 | 1998-04-30 | 1998-09-16 |
| 1999 | 1999-05-23 | 1999-09-22 |
| 2000 | 2000-06-17 | 2000-08-23 |
| 2003 | 2003-05-23 | 2003-09-27 |
| 2004 | 2004-04-26 | 2004-08-31 |
| 2005 | 2005-05-26 | 2005-09-08 |
| 2006 | 2006-05-15 | 2006-09-27 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 42 | 50 | 1967 | 41 |
| 35 C (95 F): Days | 39 | 15 | 1996 | 8 |
| 40 C (104 F): Days | 5 | 3 | 1981 | 1 |
| 90 F (32.2 C): Days | 42 | 28 | 1967 | 24 |
| 100 F (37.8 C): Days | 23 | 6 | 1981 | 3 |
| 0 C (32 F): Ice days (max | 27 | 16 | 1998 | 2 |
| 0 C (32 F): Frost days (min | 42 | 114 | 1985 | 36 |
| -10 C (14 F): Days with min | 15 | 7 | 1979 | 7 |
| 20 C (68 F): Tropical nights (min | 4 | 3 | 2006 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 42 | 66 | 1996 | 52 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 42 | 18 | 1996 | 9 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 19 | 3 | 1994 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1982 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 3 | 2 | 1969 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.
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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).