Stonington Threshold Days by Year
6 fixed thresholds counted per year at Stonington (USC00057992): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Stonington Thresholds
- Stonington: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1941 with 23.
- Stonington: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 1989 with 9.
- Stonington: days with 10 cm (3.9 in) or more of snowfall in 31 years, most in 1990 with 5.
- Stonington: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1949 with 3.
- 6 fixed thresholds have at least one qualifying day at Stonington.
Days with 10 mm (0.39 in) or more of precipitation
55 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1941 | 23 | 16.1 |
| 1942 | 13 | 16.1 |
| 1943 | 12 | 16.1 |
| 1944 | 18 | 16.1 |
| 1945 | 11 | 16.1 |
| 1946 | 20 | 16.1 |
| 1947 | 16 | 16.1 |
| 1948 | 15 | 16.1 |
| 1949 | 17 | 16.1 |
| 1950 | 16 | 12 |
| 1951 | 12 | 12 |
| 1952 | 9 | 12 |
| 1953 | 11 | 12 |
| 1954 | 8 | 12 |
| 1955 | 9 | 12 |
| 1956 | 9 | 12 |
| 1958 | 21 | 12 |
| 1959 | 13 | 12 |
| 1960 | 11 | 10.7 |
| 1961 | 5 | 10.7 |
| 1962 | 9 | 10.7 |
| 1963 | 11 | 10.7 |
| 1964 | 5 | 10.7 |
| 1965 | 17 | 10.7 |
| 1966 | 10 | 10.7 |
| 1967 | 16 | 10.7 |
| 1968 | 8 | 10.7 |
| 1969 | 15 | 10.7 |
| 1970 | 10 | 13.1 |
| 1971 | 16 | 13.1 |
| 1972 | 16 | 13.1 |
| 1973 | 15 | 13.1 |
| 1974 | 9 | 13.1 |
| 1975 | 10 | 13.1 |
| 1976 | 12 | 13.1 |
| 1977 | 12 | 13.1 |
| 1978 | 16 | 13.1 |
| 1979 | 15 | 13.1 |
| 1980 | 12 | 14 |
| 1981 | 15 | 14 |
| 1982 | 16 | 14 |
| 1983 | 10 | 14 |
| 1984 | 14 | 14 |
| 1985 | 10 | 14 |
| 1986 | 19 | 14 |
| 1987 | 18 | 14 |
| 1988 | 10 | 14 |
| 1989 | 16 | 14 |
| 1990 | 15 | 14.1 |
| 1993 | 15 | 14.1 |
| 1994 | 15 | 14.1 |
| 1995 | 10 | 14.1 |
| 1996 | 17 | 14.1 |
| 1997 | 16 | 14.1 |
| 1998 | 11 | 14.1 |
| Year | First date | Last date |
|---|---|---|
| 1941 | 1941-01-16 | 1941-10-22 |
| 1942 | 1942-03-16 | 1942-10-24 |
| 1943 | 1943-04-08 | 1943-12-10 |
| 1944 | 1944-01-27 | 1944-12-04 |
| 1945 | 1945-01-21 | 1945-12-24 |
| 1946 | 1946-02-18 | 1946-11-06 |
| 1947 | 1947-01-03 | 1947-12-04 |
| 1948 | 1948-01-27 | 1948-11-01 |
| 1949 | 1949-03-30 | 1949-10-30 |
| 1950 | 1950-04-16 | 1950-10-02 |
| 1951 | 1951-01-02 | 1951-08-21 |
| 1952 | 1952-04-17 | 1952-09-21 |
| 1953 | 1953-03-01 | 1953-11-06 |
| 1954 | 1954-05-01 | 1954-10-07 |
| 1955 | 1955-04-13 | 1955-09-25 |
| 1956 | 1956-05-28 | 1956-08-19 |
| 1958 | 1958-03-04 | 1958-11-17 |
| 1959 | 1959-03-20 | 1959-10-05 |
| 1960 | 1960-04-28 | 1960-10-18 |
| 1961 | 1961-06-04 | 1961-09-13 |
| 1962 | 1962-03-24 | 1962-09-01 |
| 1963 | 1963-03-10 | 1963-09-20 |
| 1964 | 1964-05-29 | 1964-11-16 |
| 1965 | 1965-05-13 | 1965-10-17 |
| 1966 | 1966-01-15 | 1966-09-27 |
| 1967 | 1967-04-11 | 1967-09-17 |
| 1968 | 1968-03-11 | 1968-08-10 |
| 1969 | 1969-04-16 | 1969-10-12 |
| 1970 | 1970-04-17 | 1970-11-13 |
| 1971 | 1971-02-19 | 1971-12-02 |
| 1972 | 1972-03-28 | 1972-11-09 |
| 1973 | 1973-01-27 | 1973-09-24 |
| 1974 | 1974-03-09 | 1974-10-12 |
| 1975 | 1975-02-05 | 1975-11-19 |
| 1976 | 1976-04-12 | 1976-09-27 |
| 1977 | 1977-04-13 | 1977-09-11 |
| 1978 | 1978-02-12 | 1978-09-25 |
| 1979 | 1979-03-02 | 1979-12-27 |
| 1980 | 1980-03-23 | 1980-12-09 |
| 1981 | 1981-03-03 | 1981-10-16 |
| 1982 | 1982-05-12 | 1982-12-27 |
| 1983 | 1983-01-20 | 1983-10-21 |
| 1984 | 1984-03-18 | 1984-12-13 |
| 1985 | 1985-04-28 | 1985-10-11 |
| 1986 | 1986-03-18 | 1986-11-04 |
| 1987 | 1987-02-15 | 1987-12-26 |
| 1988 | 1988-04-18 | 1988-09-23 |
| 1989 | 1989-05-01 | 1989-09-13 |
| 1990 | 1990-01-19 | 1990-11-04 |
| 1993 | 1993-02-11 | 1993-11-14 |
| 1994 | 1994-04-03 | 1994-11-21 |
| 1995 | 1995-05-07 | 1995-08-01 |
| 1996 | 1996-05-26 | 1996-09-19 |
| 1997 | 1997-02-24 | 1997-12-23 |
| 1998 | 1998-03-17 | 1998-11-01 |
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 | 55 | 23 | 1941 | 11 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 55 | 9 | 1989 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 27 | 3 | 1949 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 3 | 1 | 1949 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 31 | 5 | 1990 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 4 | 1 | 1945 | 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).