London State Fish Hatchery Threshold Days by Year (USC00334681)
18 fixed thresholds counted per year at London State Fish Hatchery (USC00334681): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for London State Fish Hatchery Thresholds
- London State Fish Hatchery: days with a maximum temperature at or above 30 C (86 F) in 93 years, most in 1934 with 74.
- London State Fish Hatchery: days with a maximum temperature at or below 0 C (32 F) in 93 years, most in 2014 with 64.
- London State Fish Hatchery: days with a maximum temperature at or above 90 F (32.2 C) in 92 years, most in 1936 with 46.
- London State Fish Hatchery: days with 10 mm (0.39 in) or more of precipitation in 91 years, most in 2011 with 57.
- 18 fixed thresholds have at least one qualifying day at London State Fish Hatchery.
Days at or above 30 C (86 F)
93 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1919 | 46 | 46 |
| 1920 | 13 | 34.1 |
| 1921 | 48 | 34.1 |
| 1922 | 41 | 34.1 |
| 1923 | 45 | 34.1 |
| 1924 | 32 | 34.1 |
| 1925 | 51 | 34.1 |
| 1926 | 25 | 34.1 |
| 1927 | 18 | 34.1 |
| 1930 | 55 | 50.6 |
| 1931 | 58 | 50.6 |
| 1932 | 45 | 50.6 |
| 1933 | 47 | 50.6 |
| 1934 | 74 | 50.6 |
| 1935 | 31 | 50.6 |
| 1936 | 72 | 50.6 |
| 1937 | 35 | 50.6 |
| 1938 | 34 | 50.6 |
| 1939 | 55 | 50.6 |
| 1940 | 56 | 44.9 |
| 1941 | 54 | 44.9 |
| 1942 | 49 | 44.9 |
| 1943 | 34 | 44.9 |
| 1944 | 64 | 44.9 |
| 1945 | 36 | 44.9 |
| 1946 | 30 | 44.9 |
| 1947 | 32 | 44.9 |
| 1948 | 47 | 44.9 |
| 1949 | 47 | 44.9 |
| 1950 | 26 | 43.5 |
| 1951 | 44 | 43.5 |
| 1952 | 64 | 43.5 |
| 1953 | 59 | 43.5 |
| 1954 | 40 | 43.5 |
| 1955 | 55 | 43.5 |
| 1956 | 36 | 43.5 |
| 1957 | 27 | 43.5 |
| 1958 | 19 | 43.5 |
| 1959 | 65 | 43.5 |
| 1960 | 35 | 40.8 |
| 1961 | 35 | 40.8 |
| 1962 | 43 | 40.8 |
| 1963 | 29 | 40.8 |
| 1964 | 65 | 40.8 |
| 1965 | 36 | 40.8 |
| 1966 | 52 | 40.8 |
| 1967 | 31 | 40.8 |
| 1968 | 46 | 40.8 |
| 1969 | 36 | 40.8 |
| 1970 | 51 | 38.3 |
| 1971 | 33 | 38.3 |
| 1972 | 29 | 38.3 |
| 1973 | 36 | 38.3 |
| 1974 | 26 | 38.3 |
| 1975 | 44 | 38.3 |
| 1976 | 30 | 38.3 |
| 1977 | 57 | 38.3 |
| 1978 | 53 | 38.3 |
| 1979 | 24 | 38.3 |
| 1980 | 59 | 44.5 |
| 1981 | 22 | 44.5 |
| 1982 | 34 | 44.5 |
| 1983 | 69 | 44.5 |
| 1984 | 40 | 44.5 |
| 1985 | 32 | 44.5 |
| 1986 | 45 | 44.5 |
| 1987 | 59 | 44.5 |
| 1988 | 62 | 44.5 |
| 1989 | 23 | 44.5 |
| 1991 | 68 | 40.2 |
| 1992 | 13 | 40.2 |
| 1993 | 46 | 40.2 |
| 1994 | 41 | 40.2 |
| 1995 | 38 | 40.2 |
| 1996 | 34 | 40.2 |
| 1997 | 22 | 40.2 |
| 1998 | 39 | 40.2 |
| 1999 | 61 | 40.2 |
| 2011 | 37 | 28.9 |
| 2012 | 48 | 28.9 |
| 2013 | 16 | 28.9 |
| 2014 | 8 | 28.9 |
| 2015 | 16 | 28.9 |
| 2017 | 19 | 28.9 |
| 2018 | 40 | 28.9 |
| 2019 | 47 | 28.9 |
| 2020 | 43 | 38.4 |
| 2021 | 29 | 38.4 |
| 2022 | 27 | 38.4 |
| 2023 | 23 | 38.4 |
| 2024 | 59 | 38.4 |
| 2025 | 49 | 38.4 |
| 2026 | 39 | 38.4 |
| Year | First date | Last date |
|---|---|---|
| 1919 | 1919-05-31 | 1919-10-03 |
| 1920 | 1920-06-10 | 1920-08-04 |
| 1921 | 1921-05-23 | 1921-09-20 |
| 1922 | 1922-06-11 | 1922-10-05 |
| 1923 | 1923-06-03 | 1923-09-27 |
| 1924 | 1924-06-15 | 1924-09-27 |
| 1925 | 1925-04-23 | 1925-09-20 |
| 1926 | 1926-05-08 | 1926-08-28 |
| 1927 | 1927-07-10 | 1927-09-18 |
| 1930 | 1930-04-11 | 1930-09-23 |
| 1931 | 1931-05-28 | 1931-10-06 |
| 1932 | 1932-06-04 | 1932-09-19 |
| 1933 | 1933-06-05 | 1933-09-26 |
| 1934 | 1934-05-04 | 1934-09-26 |
| 1935 | 1935-06-13 | 1935-09-18 |
| 1936 | 1936-05-09 | 1936-09-23 |
| 1937 | 1937-05-30 | 1937-10-01 |
| 1938 | 1938-05-04 | 1938-09-12 |
| 1939 | 1939-05-25 | 1939-10-09 |
| 1940 | 1940-05-22 | 1940-09-22 |
| 1941 | 1941-05-06 | 1941-09-30 |
| 1942 | 1942-04-30 | 1942-09-18 |
| 1943 | 1943-06-03 | 1943-09-01 |
| 1944 | 1944-05-21 | 1944-09-20 |
| 1945 | 1945-06-01 | 1945-09-28 |
| 1946 | 1946-06-11 | 1946-10-07 |
| 1947 | 1947-06-10 | 1947-10-22 |
| 1948 | 1948-04-25 | 1948-09-19 |
| 1949 | 1949-05-04 | 1949-10-10 |
| 1950 | 1950-06-07 | 1950-09-01 |
| 1951 | 1951-06-01 | 1951-10-05 |
| 1952 | 1952-05-05 | 1952-10-01 |
| 1953 | 1953-05-30 | 1953-10-03 |
| 1954 | 1954-05-31 | 1954-09-18 |
| 1955 | 1955-06-05 | 1955-09-20 |
| 1956 | 1956-06-10 | 1956-09-13 |
| 1957 | 1957-05-13 | 1957-09-01 |
| 1958 | 1958-06-05 | 1958-09-06 |
| 1959 | 1959-05-02 | 1959-10-04 |
| 1960 | 1960-04-24 | 1960-09-23 |
| 1961 | 1961-06-02 | 1961-09-24 |
| 1962 | 1962-04-30 | 1962-09-13 |
| 1963 | 1963-05-09 | 1963-09-19 |
| 1964 | 1964-05-19 | 1964-09-17 |
| 1965 | 1965-05-22 | 1965-09-21 |
| 1966 | 1966-06-09 | 1966-09-03 |
| 1967 | 1967-05-27 | 1967-08-30 |
| 1968 | 1968-06-06 | 1968-09-23 |
| 1969 | 1969-05-06 | 1969-09-06 |
| 1970 | 1970-05-20 | 1970-09-24 |
| 1971 | 1971-06-04 | 1971-10-01 |
| 1972 | 1972-05-25 | 1972-09-17 |
| 1973 | 1973-06-03 | 1973-09-27 |
| 1974 | 1974-06-09 | 1974-08-27 |
| 1975 | 1975-05-20 | 1975-09-05 |
| 1976 | 1976-06-07 | 1976-09-08 |
| 1977 | 1977-05-16 | 1977-09-02 |
| 1978 | 1978-05-27 | 1978-09-22 |
| 1979 | 1979-05-08 | 1979-09-04 |
| 1980 | 1980-05-29 | 1980-09-22 |
| 1981 | 1981-06-14 | 1981-08-05 |
| 1982 | 1982-05-12 | 1982-09-15 |
| 1983 | 1983-06-11 | 1983-09-20 |
| 1984 | 1984-06-05 | 1984-09-22 |
| 1985 | 1985-04-21 | 1985-09-09 |
| 1986 | 1986-04-26 | 1986-09-30 |
| 1987 | 1987-05-14 | 1987-08-27 |
| 1988 | 1988-05-15 | 1988-08-19 |
| 1989 | 1989-05-31 | 1989-09-10 |
| 1991 | 1991-05-13 | 1991-09-17 |
| 1992 | 1992-06-18 | 1992-08-28 |
| 1993 | 1993-05-10 | 1993-09-15 |
| 1994 | 1994-06-06 | 1994-09-17 |
| 1995 | 1995-06-11 | 1995-09-01 |
| 1996 | 1996-05-19 | 1996-08-24 |
| 1997 | 1997-06-21 | 1997-09-03 |
| 1998 | 1998-05-17 | 1998-09-28 |
| 1999 | 1999-05-18 | 1999-09-28 |
| 2011 | 2011-05-30 | 2011-09-04 |
| 2012 | 2012-05-26 | 2012-09-08 |
| 2013 | 2013-05-30 | 2013-09-12 |
| 2014 | 2014-06-18 | 2014-09-05 |
| 2015 | 2015-06-10 | 2015-09-08 |
| 2017 | 2017-05-18 | 2017-09-28 |
| 2018 | 2018-05-28 | 2018-10-09 |
| 2019 | 2019-05-26 | 2019-10-04 |
| 2020 | 2020-05-25 | 2020-09-13 |
| 2021 | 2021-05-21 | 2021-09-20 |
| 2022 | 2022-05-22 | 2022-09-22 |
| 2023 | 2023-06-02 | 2023-10-05 |
| 2024 | 2024-05-03 | 2024-10-07 |
| 2025 | 2025-06-05 | 2025-10-05 |
| 2026 | 2026-05-19 | 2026-10-14 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 93 | 74 | 1934 | 39 |
| 35 C (95 F): Days | 51 | 19 | 1936 | 1 |
| 40 C (104 F): Days | 2 | 5 | 1934 | 3 |
| 90 F (32.2 C): Days | 92 | 46 | 1936 | 17 |
| 100 F (37.8 C): Days | 15 | 9 | 1936 | 5 |
| 0 C (32 F): Ice days (max | 93 | 64 | 2014 | 30 |
| 0 C (32 F): Frost days (min | 89 | 149 | 1926 | 70 |
| -10 C (14 F): Days with min | 89 | 53 | 2014 | 23 |
| -20 C (-4 F): Days with min | 64 | 19 | 1977 | 7 |
| -30 C (-22 F): Days with min | 1 | 1 | 1982 | 1 |
| 20 C (68 F): Tropical nights (min | 89 | 53 | 1936 | 21 |
| 25 C (77 F): Days with min | 6 | 2 | 1936 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 91 | 57 | 2011 | 31 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 91 | 16 | 1938 | 12 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 60 | 6 | 2017 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 1 | 1969 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 36 | 4 | 1951 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 1 | 1978 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1919.
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 (2026-10-17).