Hartford 6 NW Threshold Days by Year (USC00153652)
6 fixed thresholds counted per year at Hartford 6 NW (USC00153652): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Hartford 6 NW Thresholds
- Hartford 6 NW: days with 10 mm (0.39 in) or more of precipitation in 45 years, most in 1950 with 60.
- Hartford 6 NW: days with 25 mm (0.98 in) or more of precipitation in 45 years, most in 1950 with 25.
- Hartford 6 NW: days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 1957 with 9.
- Hartford 6 NW: days with 10 cm (3.9 in) or more of snowfall in 19 years, most in 1951 with 3.
- 6 fixed thresholds have at least one qualifying day at Hartford 6 NW.
Days with 10 mm (0.39 in) or more of precipitation
45 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1939 | 39 | 39 |
| 1940 | 35 | 35.3 |
| 1941 | 25 | 35.3 |
| 1942 | 34 | 35.3 |
| 1944 | 30 | 35.3 |
| 1946 | 35 | 35.3 |
| 1949 | 53 | 35.3 |
| 1950 | 60 | 38.4 |
| 1951 | 43 | 38.4 |
| 1952 | 28 | 38.4 |
| 1953 | 29 | 38.4 |
| 1954 | 36 | 38.4 |
| 1955 | 37 | 38.4 |
| 1956 | 39 | 38.4 |
| 1957 | 39 | 38.4 |
| 1958 | 32 | 38.4 |
| 1959 | 41 | 38.4 |
| 1960 | 29 | 35.3 |
| 1961 | 44 | 35.3 |
| 1962 | 39 | 35.3 |
| 1963 | 20 | 35.3 |
| 1964 | 33 | 35.3 |
| 1965 | 35 | 35.3 |
| 1966 | 44 | 35.3 |
| 1967 | 40 | 35.3 |
| 1968 | 31 | 35.3 |
| 1969 | 38 | 35.3 |
| 1970 | 37 | 43 |
| 1971 | 36 | 43 |
| 1972 | 45 | 43 |
| 1973 | 43 | 43 |
| 1974 | 39 | 43 |
| 1975 | 46 | 43 |
| 1976 | 44 | 43 |
| 1977 | 46 | 43 |
| 1978 | 42 | 43 |
| 1979 | 52 | 43 |
| 1980 | 29 | 37.5 |
| 1981 | 34 | 37.5 |
| 1982 | 44 | 37.5 |
| 1983 | 37 | 37.5 |
| 1984 | 42 | 37.5 |
| 1985 | 47 | 37.5 |
| 1986 | 36 | 37.5 |
| 1987 | 31 | 37.5 |
| Year | First date | Last date |
|---|---|---|
| 1939 | 1939-01-05 | 1939-12-27 |
| 1940 | 1940-01-14 | 1940-12-27 |
| 1941 | 1941-01-17 | 1941-12-23 |
| 1942 | 1942-01-01 | 1942-12-27 |
| 1944 | 1944-01-03 | 1944-12-31 |
| 1946 | 1946-01-08 | 1946-12-29 |
| 1949 | 1949-01-04 | 1949-12-26 |
| 1950 | 1950-01-02 | 1950-12-06 |
| 1951 | 1951-01-02 | 1951-12-26 |
| 1952 | 1952-01-02 | 1952-12-31 |
| 1953 | 1953-01-08 | 1953-12-14 |
| 1954 | 1954-01-10 | 1954-12-30 |
| 1955 | 1955-01-11 | 1955-12-03 |
| 1956 | 1956-01-19 | 1956-12-20 |
| 1957 | 1957-01-05 | 1957-12-20 |
| 1958 | 1958-01-14 | 1958-11-29 |
| 1959 | 1959-01-01 | 1959-12-28 |
| 1960 | 1960-01-15 | 1960-12-30 |
| 1961 | 1961-01-01 | 1961-12-10 |
| 1962 | 1962-01-15 | 1962-12-29 |
| 1963 | 1963-03-01 | 1963-12-12 |
| 1964 | 1964-01-09 | 1964-12-25 |
| 1965 | 1965-01-02 | 1965-12-12 |
| 1966 | 1966-01-01 | 1966-12-28 |
| 1967 | 1967-01-27 | 1967-12-22 |
| 1968 | 1968-01-13 | 1968-12-29 |
| 1969 | 1969-01-18 | 1969-12-30 |
| 1970 | 1970-02-02 | 1970-12-22 |
| 1971 | 1971-01-04 | 1971-12-15 |
| 1972 | 1972-01-04 | 1972-12-31 |
| 1973 | 1973-01-04 | 1973-12-29 |
| 1974 | 1974-01-10 | 1974-12-24 |
| 1975 | 1975-01-03 | 1975-12-26 |
| 1976 | 1976-01-02 | 1976-11-27 |
| 1977 | 1977-01-10 | 1977-12-14 |
| 1978 | 1978-01-08 | 1978-12-31 |
| 1979 | 1979-01-01 | 1979-12-24 |
| 1980 | 1980-01-04 | 1980-12-09 |
| 1981 | 1981-01-30 | 1981-12-23 |
| 1982 | 1982-01-03 | 1982-12-28 |
| 1983 | 1983-01-21 | 1983-12-22 |
| 1984 | 1984-01-24 | 1984-12-31 |
| 1985 | 1985-01-01 | 1985-12-12 |
| 1986 | 1986-01-19 | 1986-12-09 |
| 1987 | 1987-02-14 | 1987-12-28 |
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 | 45 | 60 | 1950 | 31 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 45 | 25 | 1950 | 11 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 44 | 9 | 1957 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 9 | 2 | 1964 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 19 | 3 | 1951 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 1 | 1960 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.
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).