Thurlow Dam Threshold Days by Year (USC00018215)
5 fixed thresholds counted per year at Thurlow Dam (USC00018215): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Thurlow Dam Thresholds
- Thurlow Dam: days with 10 mm (0.39 in) or more of precipitation in 53 years, most in 1975 with 59.
- Thurlow Dam: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 1975 with 32.
- Thurlow Dam: days with 50 mm (1.97 in) or more of precipitation in 52 years, most in 1961 with 12.
- Thurlow Dam: days with 100 mm (3.94 in) or more of precipitation in 16 years, most in 1948 with 2.
- 5 fixed thresholds have at least one qualifying day at Thurlow Dam.
Days with 10 mm (0.39 in) or more of precipitation
53 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1937 | 44 | 43.3 |
| 1938 | 41 | 43.3 |
| 1939 | 45 | 43.3 |
| 1940 | 37 | 40 |
| 1941 | 35 | 40 |
| 1942 | 40 | 40 |
| 1943 | 30 | 40 |
| 1944 | 43 | 40 |
| 1945 | 42 | 40 |
| 1946 | 41 | 40 |
| 1947 | 42 | 40 |
| 1948 | 49 | 40 |
| 1949 | 41 | 40 |
| 1950 | 39 | 37.7 |
| 1951 | 35 | 37.7 |
| 1952 | 41 | 37.7 |
| 1953 | 47 | 37.7 |
| 1954 | 25 | 37.7 |
| 1955 | 36 | 37.7 |
| 1956 | 38 | 37.7 |
| 1957 | 39 | 37.7 |
| 1958 | 35 | 37.7 |
| 1959 | 42 | 37.7 |
| 1960 | 43 | 42.8 |
| 1961 | 46 | 42.8 |
| 1962 | 37 | 42.8 |
| 1963 | 36 | 42.8 |
| 1964 | 53 | 42.8 |
| 1965 | 37 | 42.8 |
| 1966 | 50 | 42.8 |
| 1967 | 50 | 42.8 |
| 1968 | 42 | 42.8 |
| 1969 | 34 | 42.8 |
| 1970 | 46 | 44.1 |
| 1971 | 43 | 44.1 |
| 1972 | 40 | 44.1 |
| 1974 | 47 | 44.1 |
| 1975 | 59 | 44.1 |
| 1976 | 35 | 44.1 |
| 1977 | 43 | 44.1 |
| 1978 | 33 | 44.1 |
| 1979 | 51 | 44.1 |
| 1981 | 36 | 43.4 |
| 1982 | 42 | 43.4 |
| 1983 | 49 | 43.4 |
| 1984 | 44 | 43.4 |
| 1985 | 41 | 43.4 |
| 1986 | 35 | 43.4 |
| 1987 | 45 | 43.4 |
| 1988 | 42 | 43.4 |
| 1989 | 57 | 43.4 |
| 1990 | 36 | 40 |
| 1991 | 44 | 40 |
| Year | First date | Last date |
|---|---|---|
| 1937 | 1937-01-01 | 1937-12-23 |
| 1938 | 1938-01-07 | 1938-12-27 |
| 1939 | 1939-01-05 | 1939-12-27 |
| 1940 | 1940-01-12 | 1940-12-27 |
| 1941 | 1941-01-03 | 1941-12-26 |
| 1942 | 1942-01-01 | 1942-12-29 |
| 1943 | 1943-01-08 | 1943-12-29 |
| 1944 | 1944-01-03 | 1944-12-22 |
| 1945 | 1945-01-07 | 1945-12-31 |
| 1946 | 1946-01-06 | 1946-11-21 |
| 1947 | 1947-01-02 | 1947-12-16 |
| 1948 | 1948-01-02 | 1948-12-30 |
| 1949 | 1949-01-05 | 1949-12-27 |
| 1950 | 1950-01-07 | 1950-12-29 |
| 1951 | 1951-01-04 | 1951-12-21 |
| 1952 | 1952-01-05 | 1952-12-31 |
| 1953 | 1953-01-03 | 1953-12-29 |
| 1954 | 1954-01-22 | 1954-12-18 |
| 1955 | 1955-01-01 | 1955-11-26 |
| 1956 | 1956-01-19 | 1956-12-24 |
| 1957 | 1957-01-05 | 1957-12-20 |
| 1958 | 1958-01-01 | 1958-12-24 |
| 1959 | 1959-01-09 | 1959-12-12 |
| 1960 | 1960-01-03 | 1960-12-21 |
| 1961 | 1961-01-14 | 1961-12-18 |
| 1962 | 1962-01-06 | 1962-12-29 |
| 1963 | 1963-01-12 | 1963-12-23 |
| 1964 | 1964-01-01 | 1964-12-27 |
| 1965 | 1965-01-23 | 1965-12-19 |
| 1966 | 1966-01-03 | 1966-12-31 |
| 1967 | 1967-01-02 | 1967-12-28 |
| 1968 | 1968-01-01 | 1968-12-31 |
| 1969 | 1969-01-19 | 1969-12-31 |
| 1970 | 1970-01-06 | 1970-12-31 |
| 1971 | 1971-01-05 | 1971-12-20 |
| 1972 | 1972-01-02 | 1972-12-31 |
| 1974 | 1974-01-01 | 1974-12-24 |
| 1975 | 1975-01-04 | 1975-12-31 |
| 1976 | 1976-01-04 | 1976-12-26 |
| 1977 | 1977-01-03 | 1977-12-31 |
| 1978 | 1978-01-09 | 1978-12-24 |
| 1979 | 1979-01-02 | 1979-12-30 |
| 1981 | 1981-01-07 | 1981-12-31 |
| 1982 | 1982-01-01 | 1982-11-29 |
| 1983 | 1983-01-02 | 1983-12-29 |
| 1984 | 1984-01-10 | 1984-12-06 |
| 1985 | 1985-01-02 | 1985-12-13 |
| 1986 | 1986-01-01 | 1986-12-23 |
| 1987 | 1987-01-17 | 1987-12-28 |
| 1988 | 1988-01-02 | 1988-12-31 |
| 1989 | 1989-01-01 | 1989-12-31 |
| 1990 | 1990-01-01 | 1990-12-24 |
| 1991 | 1991-01-07 | 1991-12-29 |
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 | 53 | 59 | 1975 | 44 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 53 | 32 | 1975 | 17 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 52 | 12 | 1961 | 6 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 16 | 2 | 1948 | 2 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1948 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1937.
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).