Stevenson Dam Threshold Days by Year (USC00068065)
5 fixed thresholds counted per year at Stevenson Dam (USC00068065): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Stevenson Dam Thresholds
- Stevenson Dam: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1973 with 59.
- Stevenson Dam: days with 25 mm (0.98 in) or more of precipitation in 51 years, most in 1983 with 25.
- Stevenson Dam: days with 50 mm (1.97 in) or more of precipitation in 47 years, most in 1955 with 10.
- Stevenson Dam: days with 100 mm (3.94 in) or more of precipitation in 11 years, most in 1955 with 2.
- 5 fixed thresholds have at least one qualifying day at Stevenson Dam.
Days with 10 mm (0.39 in) or more of precipitation
51 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1949 | 40 | 40 |
| 1950 | 38 | 40.1 |
| 1953 | 52 | 40.1 |
| 1954 | 40 | 40.1 |
| 1955 | 41 | 40.1 |
| 1956 | 39 | 40.1 |
| 1957 | 34 | 40.1 |
| 1958 | 42 | 40.1 |
| 1959 | 35 | 40.1 |
| 1960 | 38 | 34.6 |
| 1961 | 39 | 34.6 |
| 1962 | 39 | 34.6 |
| 1963 | 30 | 34.6 |
| 1964 | 34 | 34.6 |
| 1965 | 27 | 34.6 |
| 1966 | 30 | 34.6 |
| 1967 | 40 | 34.6 |
| 1968 | 34 | 34.6 |
| 1969 | 35 | 34.6 |
| 1970 | 34 | 43.7 |
| 1971 | 38 | 43.7 |
| 1972 | 51 | 43.7 |
| 1973 | 59 | 43.7 |
| 1974 | 43 | 43.7 |
| 1975 | 59 | 43.7 |
| 1976 | 40 | 43.7 |
| 1977 | 37 | 43.7 |
| 1978 | 34 | 43.7 |
| 1979 | 42 | 43.7 |
| 1980 | 28 | 39.3 |
| 1981 | 32 | 39.3 |
| 1982 | 41 | 39.3 |
| 1983 | 54 | 39.3 |
| 1984 | 48 | 39.3 |
| 1985 | 35 | 39.3 |
| 1986 | 39 | 39.3 |
| 1987 | 36 | 39.3 |
| 1988 | 38 | 39.3 |
| 1989 | 42 | 39.3 |
| 1990 | 43 | 42 |
| 1991 | 38 | 42 |
| 1992 | 45 | 42 |
| 2004 | 30 | 34.2 |
| 2005 | 28 | 34.2 |
| 2006 | 37 | 34.2 |
| 2007 | 32 | 34.2 |
| 2008 | 42 | 34.2 |
| 2009 | 36 | 34.2 |
| 2010 | 30 | 31.3 |
| 2011 | 46 | 31.3 |
| 2012 | 18 | 31.3 |
| Year | First date | Last date |
|---|---|---|
| 1949 | 1949-01-01 | 1949-12-27 |
| 1950 | 1950-01-11 | 1950-12-30 |
| 1953 | 1953-01-03 | 1953-12-15 |
| 1954 | 1954-01-11 | 1954-12-30 |
| 1955 | 1955-02-07 | 1955-11-17 |
| 1956 | 1956-01-12 | 1956-12-16 |
| 1957 | 1957-01-23 | 1957-12-27 |
| 1958 | 1958-01-01 | 1958-12-06 |
| 1959 | 1959-01-02 | 1959-12-29 |
| 1960 | 1960-01-03 | 1960-12-30 |
| 1961 | 1961-01-01 | 1961-12-29 |
| 1962 | 1962-01-07 | 1962-12-30 |
| 1963 | 1963-01-20 | 1963-12-24 |
| 1964 | 1964-01-02 | 1964-12-28 |
| 1965 | 1965-01-03 | 1965-12-26 |
| 1966 | 1966-01-03 | 1966-12-30 |
| 1967 | 1967-01-28 | 1967-12-29 |
| 1968 | 1968-01-15 | 1968-12-23 |
| 1969 | 1969-01-01 | 1969-12-27 |
| 1970 | 1970-02-03 | 1970-12-24 |
| 1971 | 1971-01-05 | 1971-12-31 |
| 1972 | 1972-01-03 | 1972-12-31 |
| 1973 | 1973-01-01 | 1973-12-27 |
| 1974 | 1974-01-04 | 1974-12-26 |
| 1975 | 1975-01-07 | 1975-12-31 |
| 1976 | 1976-01-08 | 1976-12-26 |
| 1977 | 1977-01-11 | 1977-12-22 |
| 1978 | 1978-03-04 | 1978-12-25 |
| 1979 | 1979-01-01 | 1979-12-26 |
| 1980 | 1980-01-12 | 1980-11-29 |
| 1981 | 1981-01-07 | 1981-12-16 |
| 1982 | 1982-01-02 | 1982-12-17 |
| 1983 | 1983-01-06 | 1983-12-29 |
| 1984 | 1984-01-11 | 1984-12-22 |
| 1985 | 1985-01-03 | 1985-12-11 |
| 1986 | 1986-01-04 | 1986-12-25 |
| 1987 | 1987-01-02 | 1987-12-16 |
| 1988 | 1988-01-04 | 1988-12-29 |
| 1989 | 1989-02-14 | 1989-12-16 |
| 1990 | 1990-01-01 | 1990-12-24 |
| 1991 | 1991-01-12 | 1991-12-30 |
| 1992 | 1992-01-15 | 1992-12-31 |
| 2004 | 2004-02-03 | 2004-12-23 |
| 2005 | 2005-01-06 | 2005-12-25 |
| 2006 | 2006-01-03 | 2006-12-23 |
| 2007 | 2007-01-01 | 2007-12-23 |
| 2008 | 2008-01-11 | 2008-12-20 |
| 2009 | 2009-01-08 | 2009-12-28 |
| 2010 | 2010-01-26 | 2010-12-13 |
| 2011 | 2011-01-08 | 2011-12-28 |
| 2012 | 2012-04-23 | 2012-12-28 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 10 mm (0.39 in): Days with 10 mm or more rain | 51 | 59 | 1973 | 18 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 51 | 25 | 1983 | 7 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 47 | 10 | 1955 | 6 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 11 | 2 | 1955 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1982 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.
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).