Bartlett Dam Threshold Days by Year (USC00020632)
16 fixed thresholds counted per year at Bartlett Dam (USC00020632): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Bartlett Dam Thresholds
- Bartlett Dam: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 1941 with 23.
- Bartlett Dam: days with a maximum temperature at or above 30 C (86 F) in 56 years, most in 1950 with 214.
- Bartlett Dam: days with a maximum temperature at or above 35 C (95 F) in 56 years, most in 1989 with 153.
- Bartlett Dam: days with a maximum temperature at or above 40 C (104 F) in 56 years, most in 1958 with 86.
- 16 fixed thresholds have at least one qualifying day at Bartlett Dam.
Days at or above 30 C (86 F)
56 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1941 | 150 | 175.4 |
| 1942 | 174 | 175.4 |
| 1943 | 191 | 175.4 |
| 1944 | 168 | 175.4 |
| 1945 | 183 | 175.4 |
| 1946 | 169 | 175.4 |
| 1947 | 170 | 175.4 |
| 1948 | 183 | 175.4 |
| 1949 | 191 | 175.4 |
| 1950 | 214 | 185.9 |
| 1951 | 172 | 185.9 |
| 1952 | 190 | 185.9 |
| 1953 | 180 | 185.9 |
| 1954 | 199 | 185.9 |
| 1955 | 178 | 185.9 |
| 1956 | 194 | 185.9 |
| 1957 | 164 | 185.9 |
| 1958 | 178 | 185.9 |
| 1959 | 190 | 185.9 |
| 1960 | 188 | 181.8 |
| 1961 | 186 | 181.8 |
| 1962 | 189 | 181.8 |
| 1963 | 192 | 181.8 |
| 1964 | 177 | 181.8 |
| 1965 | 178 | 181.8 |
| 1966 | 188 | 181.8 |
| 1967 | 175 | 181.8 |
| 1968 | 175 | 181.8 |
| 1969 | 170 | 181.8 |
| 1970 | 160 | 177.9 |
| 1971 | 169 | 177.9 |
| 1972 | 202 | 177.9 |
| 1973 | 184 | 177.9 |
| 1974 | 183 | 177.9 |
| 1975 | 168 | 177.9 |
| 1976 | 174 | 177.9 |
| 1977 | 183 | 177.9 |
| 1978 | 176 | 177.9 |
| 1979 | 180 | 177.9 |
| 1980 | 180 | 180.5 |
| 1981 | 186 | 180.5 |
| 1982 | 168 | 180.5 |
| 1983 | 153 | 180.5 |
| 1984 | 164 | 180.5 |
| 1985 | 179 | 180.5 |
| 1986 | 178 | 180.5 |
| 1987 | 192 | 180.5 |
| 1988 | 199 | 180.5 |
| 1989 | 206 | 180.5 |
| 1990 | 188 | 178.8 |
| 1991 | 175 | 178.8 |
| 1992 | 189 | 178.8 |
| 1993 | 174 | 178.8 |
| 1994 | 178 | 178.8 |
| 1995 | 169 | 178.8 |
| 2026 | 71 | 71 |
| Year | First date | Last date |
|---|---|---|
| 1941 | 1941-04-25 | 1941-11-07 |
| 1942 | 1942-03-30 | 1942-11-14 |
| 1943 | 1943-02-21 | 1943-11-13 |
| 1944 | 1944-04-03 | 1944-11-05 |
| 1945 | 1945-04-10 | 1945-11-06 |
| 1946 | 1946-03-11 | 1946-10-26 |
| 1947 | 1947-03-17 | 1947-11-02 |
| 1948 | 1948-04-10 | 1948-10-27 |
| 1949 | 1949-04-13 | 1949-12-01 |
| 1950 | 1950-03-30 | 1950-12-11 |
| 1951 | 1951-02-11 | 1951-10-30 |
| 1952 | 1952-04-05 | 1952-11-07 |
| 1953 | 1953-03-25 | 1953-11-16 |
| 1954 | 1954-02-02 | 1954-11-13 |
| 1955 | 1955-04-10 | 1955-11-05 |
| 1956 | 1956-03-18 | 1956-11-13 |
| 1957 | 1957-02-14 | 1957-10-27 |
| 1958 | 1958-04-16 | 1958-12-03 |
| 1959 | 1959-04-02 | 1959-10-29 |
| 1960 | 1960-03-20 | 1960-11-04 |
| 1961 | 1961-03-23 | 1961-10-28 |
| 1962 | 1962-03-27 | 1962-11-14 |
| 1963 | 1963-02-05 | 1963-11-13 |
| 1964 | 1964-03-30 | 1964-11-08 |
| 1965 | 1965-04-17 | 1965-11-08 |
| 1966 | 1966-03-13 | 1966-11-01 |
| 1967 | 1967-03-17 | 1967-11-15 |
| 1968 | 1968-03-28 | 1968-10-29 |
| 1969 | 1969-03-28 | 1969-10-10 |
| 1970 | 1970-04-05 | 1970-11-02 |
| 1971 | 1971-01-19 | 1971-11-12 |
| 1972 | 1972-02-28 | 1972-10-17 |
| 1973 | 1973-04-26 | 1973-11-13 |
| 1974 | 1974-03-16 | 1974-10-25 |
| 1975 | 1975-03-03 | 1975-11-06 |
| 1976 | 1976-03-22 | 1976-11-07 |
| 1977 | 1977-02-19 | 1977-11-04 |
| 1978 | 1978-03-26 | 1978-11-08 |
| 1979 | 1979-04-14 | 1979-10-27 |
| 1980 | 1980-04-09 | 1980-12-16 |
| 1981 | 1981-02-19 | 1981-11-16 |
| 1982 | 1982-04-11 | 1982-10-25 |
| 1983 | 1983-04-17 | 1983-11-03 |
| 1984 | 1984-03-20 | 1984-11-05 |
| 1985 | 1985-04-02 | 1985-11-04 |
| 1986 | 1986-02-24 | 1986-10-30 |
| 1987 | 1987-04-02 | 1987-10-29 |
| 1988 | 1988-03-21 | 1988-11-07 |
| 1989 | 1989-02-24 | 1989-11-20 |
| 1990 | 1990-03-20 | 1990-11-17 |
| 1991 | 1991-04-05 | 1991-11-09 |
| 1992 | 1992-04-10 | 1992-10-25 |
| 1993 | 1993-03-23 | 1993-10-27 |
| 1994 | 1994-03-16 | 1994-11-01 |
| 1995 | 1995-03-17 | 1995-11-27 |
| 2026 | 2026-03-02 | 2026-10-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 56 | 214 | 1950 | 71 |
| 35 C (95 F): Days | 56 | 153 | 1989 | 48 |
| 40 C (104 F): Days | 56 | 86 | 1958 | 24 |
| 45 C (113 F): Days | 45 | 13 | 1995 | 13 |
| 50 C (122 F): Days | 1 | 1 | 1995 | 1 |
| 90 F (32.2 C): Days | 56 | 183 | 1950 | 65 |
| 100 F (37.8 C): Days | 56 | 117 | 1960 | 31 |
| 110 F (43.3 C): Days | 56 | 25 | 1995 | 7 |
| 120 F (48.9 C): Days | 2 | 1 | 1990 | 1 |
| 0 C (32 F): Frost days (min | 50 | 53 | 1964 | 3 |
| 20 C (68 F): Tropical nights (min | 54 | 126 | 1988 | 47 |
| 25 C (77 F): Days with min | 54 | 55 | 1959 | 22 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 65 | 23 | 1941 | 5 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 54 | 11 | 1993 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 18 | 3 | 1959 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 3 | 1 | 1951 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.
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 (2026-10-17).