Mendota Dam Threshold Days by Year (USC00045528)
2 fixed thresholds counted per year at Mendota Dam (USC00045528): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Mendota Dam Thresholds
- Mendota Dam: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1958 with 14.
- Mendota Dam: days with 25 mm (0.98 in) or more of precipitation in 14 years, most in 1950 with 1.
- 2 fixed thresholds have at least one qualifying day at Mendota Dam.
Days with 10 mm (0.39 in) or more of precipitation
33 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1949 | 4 | 4 |
| 1950 | 5 | 4.8 |
| 1951 | 6 | 4.8 |
| 1952 | 5 | 4.8 |
| 1953 | 1 | 4.8 |
| 1954 | 5 | 4.8 |
| 1955 | 7 | 4.8 |
| 1956 | 1 | 4.8 |
| 1957 | 3 | 4.8 |
| 1958 | 14 | 4.8 |
| 1959 | 1 | 4.8 |
| 1960 | 4 | 5.8 |
| 1961 | 5 | 5.8 |
| 1962 | 6 | 5.8 |
| 1963 | 7 | 5.8 |
| 1964 | 4 | 5.8 |
| 1965 | 5 | 5.8 |
| 1966 | 5 | 5.8 |
| 1967 | 9 | 5.8 |
| 1968 | 5 | 5.8 |
| 1969 | 8 | 5.8 |
| 1970 | 6 | 5.1 |
| 1971 | 2 | 5.1 |
| 1972 | 5 | 5.1 |
| 1973 | 10 | 5.1 |
| 1974 | 5 | 5.1 |
| 1975 | 3 | 5.1 |
| 1976 | 7 | 5.1 |
| 1977 | 2 | 5.1 |
| 1979 | 6 | 5.1 |
| 1980 | 6 | 7 |
| 1981 | 9 | 7 |
| 1982 | 6 | 7 |
| Year | First date | Last date |
|---|---|---|
| 1949 | 1949-02-27 | 1949-12-08 |
| 1950 | 1950-01-28 | 1950-11-14 |
| 1951 | 1951-02-05 | 1951-12-29 |
| 1952 | 1952-01-07 | 1952-12-31 |
| 1953 | 1953-11-14 | 1953-11-14 |
| 1954 | 1954-01-25 | 1954-12-10 |
| 1955 | 1955-01-01 | 1955-12-25 |
| 1956 | 1956-10-07 | 1956-10-07 |
| 1957 | 1957-03-10 | 1957-11-14 |
| 1958 | 1958-01-24 | 1958-09-08 |
| 1959 | 1959-09-19 | 1959-09-19 |
| 1960 | 1960-01-10 | 1960-11-06 |
| 1961 | 1961-01-26 | 1961-12-02 |
| 1962 | 1962-01-20 | 1962-12-16 |
| 1963 | 1963-01-30 | 1963-11-20 |
| 1964 | 1964-03-07 | 1964-12-31 |
| 1965 | 1965-11-15 | 1965-12-12 |
| 1966 | 1966-01-30 | 1966-12-07 |
| 1967 | 1967-01-25 | 1967-12-20 |
| 1968 | 1968-03-08 | 1968-11-15 |
| 1969 | 1969-01-14 | 1969-11-07 |
| 1970 | 1970-01-12 | 1970-12-19 |
| 1971 | 1971-04-14 | 1971-05-08 |
| 1972 | 1972-11-04 | 1972-12-18 |
| 1973 | 1973-01-09 | 1973-12-28 |
| 1974 | 1974-01-07 | 1974-12-04 |
| 1975 | 1975-02-02 | 1975-10-31 |
| 1976 | 1976-02-10 | 1976-12-31 |
| 1977 | 1977-12-16 | 1977-12-28 |
| 1979 | 1979-01-09 | 1979-11-17 |
| 1980 | 1980-01-11 | 1980-03-03 |
| 1981 | 1981-01-23 | 1981-12-30 |
| 1982 | 1982-01-07 | 1982-12-22 |
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 | 33 | 14 | 1958 | 6 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 14 | 1 | 1950 | 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).