Red Bluff Dam Threshold Days by Year
18 fixed thresholds counted per year at Red Bluff Dam (USC00417481): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Red Bluff Dam Thresholds
- Red Bluff Dam: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 1978 with 15.
- Red Bluff Dam: days with a maximum temperature at or above 30 C (86 F) in 44 years, most in 1989 with 194.
- Red Bluff Dam: days with a maximum temperature at or above 35 C (95 F) in 44 years, most in 1998 with 145.
- Red Bluff Dam: days with a maximum temperature at or above 40 C (104 F) in 44 years, most in 1980 with 43.
- 18 fixed thresholds have at least one qualifying day at Red Bluff Dam.
Days at or above 30 C (86 F)
44 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1940 | 149 | 149.7 |
| 1944 | 144 | 149.7 |
| 1945 | 156 | 149.7 |
| 1952 | 156 | 160.9 |
| 1953 | 162 | 160.9 |
| 1954 | 182 | 160.9 |
| 1955 | 164 | 160.9 |
| 1956 | 180 | 160.9 |
| 1957 | 144 | 160.9 |
| 1958 | 141 | 160.9 |
| 1959 | 158 | 160.9 |
| 1960 | 160 | 158.5 |
| 1961 | 160 | 158.5 |
| 1962 | 168 | 158.5 |
| 1963 | 174 | 158.5 |
| 1964 | 155 | 158.5 |
| 1965 | 153 | 158.5 |
| 1966 | 144 | 158.5 |
| 1967 | 170 | 158.5 |
| 1968 | 144 | 158.5 |
| 1969 | 157 | 158.5 |
| 1970 | 141 | 156.6 |
| 1971 | 147 | 156.6 |
| 1973 | 163 | 156.6 |
| 1976 | 137 | 156.6 |
| 1977 | 168 | 156.6 |
| 1978 | 176 | 156.6 |
| 1979 | 164 | 156.6 |
| 1980 | 166 | 168.1 |
| 1981 | 167 | 168.1 |
| 1982 | 183 | 168.1 |
| 1985 | 159 | 168.1 |
| 1986 | 166 | 168.1 |
| 1987 | 143 | 168.1 |
| 1988 | 167 | 168.1 |
| 1989 | 194 | 168.1 |
| 1993 | 180 | 178.7 |
| 1994 | 188 | 178.7 |
| 1995 | 170 | 178.7 |
| 1996 | 176 | 178.7 |
| 1997 | 171 | 178.7 |
| 1998 | 189 | 178.7 |
| 1999 | 177 | 178.7 |
| 2000 | 182 | 182 |
| Year | First date | Last date |
|---|---|---|
| 1940 | 1940-03-30 | 1940-12-10 |
| 1944 | 1944-04-06 | 1944-11-07 |
| 1945 | 1945-03-23 | 1945-11-08 |
| 1952 | 1952-04-03 | 1952-11-01 |
| 1953 | 1953-01-07 | 1953-10-20 |
| 1954 | 1954-03-09 | 1954-12-04 |
| 1955 | 1955-03-12 | 1955-10-26 |
| 1956 | 1956-03-26 | 1956-10-24 |
| 1957 | 1957-04-01 | 1957-10-07 |
| 1958 | 1958-04-16 | 1958-10-20 |
| 1959 | 1959-04-02 | 1959-10-25 |
| 1960 | 1960-03-08 | 1960-10-14 |
| 1961 | 1961-04-04 | 1961-10-29 |
| 1962 | 1962-02-11 | 1962-10-15 |
| 1963 | 1963-03-24 | 1963-10-30 |
| 1964 | 1964-04-10 | 1964-10-31 |
| 1965 | 1965-04-02 | 1965-10-16 |
| 1966 | 1966-03-17 | 1966-10-21 |
| 1967 | 1967-03-02 | 1967-10-28 |
| 1968 | 1968-03-30 | 1968-10-30 |
| 1969 | 1969-04-01 | 1969-10-19 |
| 1970 | 1970-01-24 | 1970-10-13 |
| 1971 | 1971-03-13 | 1971-10-17 |
| 1973 | 1973-04-14 | 1973-11-13 |
| 1976 | 1976-03-18 | 1976-10-12 |
| 1977 | 1977-02-22 | 1977-10-21 |
| 1978 | 1978-03-18 | 1978-10-13 |
| 1979 | 1979-04-07 | 1979-10-29 |
| 1980 | 1980-02-28 | 1980-11-08 |
| 1981 | 1981-03-27 | 1981-11-25 |
| 1982 | 1982-02-23 | 1982-10-31 |
| 1985 | 1985-03-11 | 1985-10-15 |
| 1986 | 1986-02-18 | 1986-10-04 |
| 1987 | 1987-04-11 | 1987-10-30 |
| 1988 | 1988-03-21 | 1988-11-13 |
| 1989 | 1989-02-26 | 1989-10-26 |
| 1993 | 1993-03-09 | 1993-10-17 |
| 1994 | 1994-02-18 | 1994-11-05 |
| 1995 | 1995-03-11 | 1995-10-27 |
| 1996 | 1996-02-19 | 1996-11-21 |
| 1997 | 1997-03-17 | 1997-11-04 |
| 1998 | 1998-02-24 | 1998-10-17 |
| 1999 | 1999-02-10 | 1999-10-30 |
| 2000 | 2000-02-10 | 2000-10-14 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 44 | 194 | 1989 | 182 |
| 35 C (95 F): Days | 44 | 145 | 1998 | 139 |
| 40 C (104 F): Days | 44 | 43 | 1980 | 22 |
| 45 C (113 F): Days | 3 | 5 | 1994 | 3 |
| 90 F (32.2 C): Days | 44 | 181 | 1998 | 159 |
| 100 F (37.8 C): Days | 44 | 79 | 2000 | 79 |
| 110 F (43.3 C): Days | 19 | 15 | 1998 | 3 |
| 0 C (32 F): Ice days (max | 21 | 4 | 1963 | 4 |
| 0 C (32 F): Frost days (min | 43 | 88 | 1960 | 45 |
| -10 C (14 F): Days with min | 33 | 12 | 1963 | 1 |
| -20 C (-4 F): Days with min | 2 | 1 | 1962 | 1 |
| 20 C (68 F): Tropical nights (min | 43 | 86 | 1977 | 66 |
| 25 C (77 F): Days with min | 22 | 5 | 1953 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 49 | 15 | 1978 | 10 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 40 | 8 | 1978 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 20 | 3 | 1978 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 3 | 1 | 1978 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 8 | 2 | 1958 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.
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).