Tidewater Threshold Days by Year
14 fixed thresholds counted per year at Tidewater (USC00358481): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Tidewater Thresholds
- Tidewater: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1983 with 104.
- Tidewater: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1982 with 41.
- Tidewater: days with 50 mm (1.97 in) or more of precipitation in 52 years, most in 1946 with 15.
- Tidewater: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 1987 with 15.
- 14 fixed thresholds have at least one qualifying day at Tidewater.
Days at or above 30 C (86 F)
50 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1941 | 11 | 7.1 |
| 1944 | 7 | 7.1 |
| 1945 | 7 | 7.1 |
| 1946 | 6 | 7.1 |
| 1947 | 4 | 7.1 |
| 1948 | 9 | 7.1 |
| 1949 | 6 | 7.1 |
| 1950 | 10 | 5.9 |
| 1951 | 7 | 5.9 |
| 1952 | 7 | 5.9 |
| 1953 | 1 | 5.9 |
| 1955 | 2 | 5.9 |
| 1956 | 6 | 5.9 |
| 1957 | 4 | 5.9 |
| 1958 | 12 | 5.9 |
| 1959 | 4 | 5.9 |
| 1961 | 2 | 5.9 |
| 1962 | 3 | 5.9 |
| 1963 | 5 | 5.9 |
| 1964 | 1 | 5.9 |
| 1965 | 5 | 5.9 |
| 1966 | 10 | 5.9 |
| 1967 | 12 | 5.9 |
| 1968 | 5 | 5.9 |
| 1969 | 10 | 5.9 |
| 1970 | 8 | 8 |
| 1971 | 1 | 8 |
| 1972 | 14 | 8 |
| 1973 | 8 | 8 |
| 1974 | 9 | 8 |
| 1975 | 8 | 8 |
| 1976 | 3 | 8 |
| 1977 | 8 | 8 |
| 1978 | 11 | 8 |
| 1979 | 10 | 8 |
| 1980 | 8 | 7.8 |
| 1981 | 12 | 7.8 |
| 1982 | 3 | 7.8 |
| 1983 | 4 | 7.8 |
| 1984 | 2 | 7.8 |
| 1985 | 10 | 7.8 |
| 1986 | 3 | 7.8 |
| 1987 | 15 | 7.8 |
| 1988 | 10 | 7.8 |
| 1989 | 11 | 7.8 |
| 1990 | 7 | 11.2 |
| 1991 | 15 | 11.2 |
| 1992 | 15 | 11.2 |
| 1993 | 10 | 11.2 |
| 1994 | 9 | 11.2 |
| Year | First date | Last date |
|---|---|---|
| 1941 | 1941-05-10 | 1941-08-18 |
| 1944 | 1944-05-03 | 1944-09-09 |
| 1945 | 1945-06-16 | 1945-08-21 |
| 1946 | 1946-06-19 | 1946-07-27 |
| 1947 | 1947-04-14 | 1947-09-21 |
| 1948 | 1948-06-06 | 1948-09-12 |
| 1949 | 1949-05-11 | 1949-09-26 |
| 1950 | 1950-05-24 | 1950-08-31 |
| 1951 | 1951-04-11 | 1951-08-20 |
| 1952 | 1952-05-16 | 1952-09-02 |
| 1953 | 1953-09-11 | 1953-09-11 |
| 1955 | 1955-06-08 | 1955-09-04 |
| 1956 | 1956-05-16 | 1956-09-05 |
| 1957 | 1957-09-09 | 1957-09-22 |
| 1958 | 1958-06-16 | 1958-10-02 |
| 1959 | 1959-05-12 | 1959-08-06 |
| 1961 | 1961-05-18 | 1961-06-15 |
| 1962 | 1962-08-30 | 1962-09-17 |
| 1963 | 1963-08-11 | 1963-09-26 |
| 1964 | 1964-09-23 | 1964-09-23 |
| 1965 | 1965-07-23 | 1965-09-24 |
| 1966 | 1966-06-15 | 1966-09-30 |
| 1967 | 1967-07-01 | 1967-09-26 |
| 1968 | 1968-08-30 | 1968-09-29 |
| 1969 | 1969-05-07 | 1969-09-08 |
| 1970 | 1970-05-31 | 1970-09-26 |
| 1971 | 1971-08-08 | 1971-08-08 |
| 1972 | 1972-07-02 | 1972-09-14 |
| 1973 | 1973-06-20 | 1973-09-10 |
| 1974 | 1974-06-29 | 1974-09-23 |
| 1975 | 1975-05-13 | 1975-09-21 |
| 1976 | 1976-09-09 | 1976-10-07 |
| 1977 | 1977-07-30 | 1977-08-17 |
| 1978 | 1978-05-19 | 1978-08-09 |
| 1979 | 1979-05-25 | 1979-10-09 |
| 1980 | 1980-07-20 | 1980-10-02 |
| 1981 | 1981-04-29 | 1981-09-15 |
| 1982 | 1982-09-01 | 1982-09-05 |
| 1983 | 1983-05-27 | 1983-09-21 |
| 1984 | 1984-07-16 | 1984-07-22 |
| 1985 | 1985-06-17 | 1985-09-26 |
| 1986 | 1986-06-12 | 1986-10-07 |
| 1987 | 1987-04-26 | 1987-10-06 |
| 1988 | 1988-05-11 | 1988-09-13 |
| 1989 | 1989-06-04 | 1989-09-21 |
| 1990 | 1990-05-04 | 1990-09-21 |
| 1991 | 1991-07-22 | 1991-10-04 |
| 1992 | 1992-05-03 | 1992-09-22 |
| 1993 | 1993-06-18 | 1993-09-27 |
| 1994 | 1994-05-06 | 1994-09-27 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 50 | 15 | 1987 | 9 |
| 35 C (95 F): Days | 28 | 5 | 1991 | 1 |
| 40 C (104 F): Days | 1 | 1 | 1981 | 1 |
| 90 F (32.2 C): Days | 47 | 11 | 1992 | 3 |
| 100 F (37.8 C): Days | 5 | 1 | 1958 | 1 |
| 0 C (32 F): Ice days (max | 10 | 4 | 1972 | 3 |
| 0 C (32 F): Frost days (min | 49 | 96 | 1985 | 25 |
| -10 C (14 F): Days with min | 11 | 5 | 1972 | 3 |
| 20 C (68 F): Tropical nights (min | 2 | 1 | 1984 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 52 | 104 | 1983 | 72 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 52 | 41 | 1982 | 21 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 52 | 15 | 1946 | 4 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 7 | 2 | 1972 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 7 | 5 | 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 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 (2025-12-31).