Winthrop 1 WSW Threshold Days by Year
17 fixed thresholds counted per year at Winthrop 1 WSW (USC00459376): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Winthrop 1 WSW Thresholds
- Winthrop 1 WSW: nights with a minimum temperature at or below 0 C (32 F) in 105 years, most in 1965 with 222.
- Winthrop 1 WSW: nights with a minimum temperature at or below -10 C (14 F) in 105 years, most in 1916 with 94.
- Winthrop 1 WSW: days with a maximum temperature at or above 30 C (86 F) in 104 years, most in 1967 with 73.
- Winthrop 1 WSW: days with a maximum temperature at or above 90 F (32.2 C) in 104 years, most in 1958 with 59.
- 17 fixed thresholds have at least one qualifying day at Winthrop 1 WSW.
Days at or above 30 C (86 F)
104 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1911 | 42 | 44.9 |
| 1912 | 37 | 44.9 |
| 1913 | 41 | 44.9 |
| 1914 | 54 | 44.9 |
| 1915 | 46 | 44.9 |
| 1916 | 34 | 44.9 |
| 1917 | 60 | 44.9 |
| 1922 | 67 | 54.8 |
| 1923 | 53 | 54.8 |
| 1924 | 59 | 54.8 |
| 1925 | 56 | 54.8 |
| 1926 | 61 | 54.8 |
| 1927 | 42 | 54.8 |
| 1928 | 50 | 54.8 |
| 1929 | 50 | 54.8 |
| 1930 | 43 | 48.7 |
| 1931 | 58 | 48.7 |
| 1932 | 39 | 48.7 |
| 1933 | 47 | 48.7 |
| 1934 | 62 | 48.7 |
| 1935 | 44 | 48.7 |
| 1936 | 53 | 48.7 |
| 1937 | 43 | 48.7 |
| 1939 | 49 | 48.7 |
| 1940 | 52 | 38.3 |
| 1941 | 35 | 38.3 |
| 1942 | 48 | 38.3 |
| 1943 | 33 | 38.3 |
| 1944 | 35 | 38.3 |
| 1945 | 43 | 38.3 |
| 1946 | 30 | 38.3 |
| 1947 | 28 | 38.3 |
| 1948 | 31 | 38.3 |
| 1949 | 48 | 38.3 |
| 1950 | 48 | 42.6 |
| 1951 | 44 | 42.6 |
| 1952 | 44 | 42.6 |
| 1953 | 37 | 42.6 |
| 1954 | 22 | 42.6 |
| 1955 | 41 | 42.6 |
| 1956 | 47 | 42.6 |
| 1957 | 37 | 42.6 |
| 1958 | 72 | 42.6 |
| 1959 | 34 | 42.6 |
| 1960 | 46 | 51.5 |
| 1961 | 68 | 51.5 |
| 1962 | 46 | 51.5 |
| 1963 | 45 | 51.5 |
| 1965 | 42 | 51.5 |
| 1966 | 30 | 51.5 |
| 1967 | 73 | 51.5 |
| 1969 | 62 | 51.5 |
| 1970 | 56 | 46 |
| 1975 | 37 | 46 |
| 1976 | 30 | 46 |
| 1977 | 56 | 46 |
| 1978 | 39 | 46 |
| 1979 | 58 | 46 |
| 1980 | 26 | 46.7 |
| 1981 | 47 | 46.7 |
| 1982 | 31 | 46.7 |
| 1983 | 35 | 46.7 |
| 1984 | 44 | 46.7 |
| 1985 | 55 | 46.7 |
| 1986 | 62 | 46.7 |
| 1987 | 66 | 46.7 |
| 1988 | 59 | 46.7 |
| 1989 | 42 | 46.7 |
| 1990 | 31 | 40.1 |
| 1991 | 39 | 40.1 |
| 1992 | 44 | 40.1 |
| 1993 | 25 | 40.1 |
| 1995 | 39 | 40.1 |
| 1996 | 44 | 40.1 |
| 1997 | 32 | 40.1 |
| 1998 | 61 | 40.1 |
| 1999 | 46 | 40.1 |
| 2000 | 33 | 48.9 |
| 2001 | 51 | 48.9 |
| 2002 | 52 | 48.9 |
| 2003 | 64 | 48.9 |
| 2004 | 34 | 48.9 |
| 2005 | 44 | 48.9 |
| 2006 | 59 | 48.9 |
| 2007 | 52 | 48.9 |
| 2008 | 44 | 48.9 |
| 2009 | 56 | 48.9 |
| 2010 | 36 | 47.9 |
| 2011 | 39 | 47.9 |
| 2012 | 47 | 47.9 |
| 2013 | 59 | 47.9 |
| 2014 | 52 | 47.9 |
| 2015 | 52 | 47.9 |
| 2016 | 41 | 47.9 |
| 2017 | 69 | 47.9 |
| 2018 | 42 | 47.9 |
| 2019 | 42 | 47.9 |
| 2020 | 56 | 59.1 |
| 2021 | 65 | 59.1 |
| 2022 | 60 | 59.1 |
| 2023 | 53 | 59.1 |
| 2024 | 58 | 59.1 |
| 2025 | 64 | 59.1 |
| 2026 | 58 | 59.1 |
| Year | First date | Last date |
|---|---|---|
| 1911 | 1911-05-29 | 1911-09-02 |
| 1912 | 1912-05-14 | 1912-09-12 |
| 1913 | 1913-05-31 | 1913-09-17 |
| 1914 | 1914-05-31 | 1914-09-03 |
| 1915 | 1915-06-22 | 1915-09-18 |
| 1916 | 1916-06-13 | 1916-09-19 |
| 1917 | 1917-06-14 | 1917-09-23 |
| 1922 | 1922-05-15 | 1922-09-17 |
| 1923 | 1923-05-21 | 1923-09-14 |
| 1924 | 1924-05-10 | 1924-09-15 |
| 1925 | 1925-06-18 | 1925-09-04 |
| 1926 | 1926-04-26 | 1926-09-04 |
| 1927 | 1927-06-06 | 1927-08-26 |
| 1928 | 1928-05-19 | 1928-09-05 |
| 1929 | 1929-05-21 | 1929-09-16 |
| 1930 | 1930-07-02 | 1930-09-05 |
| 1931 | 1931-05-12 | 1931-09-03 |
| 1932 | 1932-06-10 | 1932-09-07 |
| 1933 | 1933-06-12 | 1933-08-28 |
| 1934 | 1934-04-20 | 1934-09-06 |
| 1935 | 1935-06-04 | 1935-09-10 |
| 1936 | 1936-04-17 | 1936-08-31 |
| 1937 | 1937-05-31 | 1937-09-19 |
| 1939 | 1939-05-13 | 1939-09-23 |
| 1940 | 1940-05-22 | 1940-09-11 |
| 1941 | 1941-05-23 | 1941-08-22 |
| 1942 | 1942-06-28 | 1942-09-26 |
| 1943 | 1943-06-28 | 1943-09-25 |
| 1944 | 1944-06-10 | 1944-09-12 |
| 1945 | 1945-05-30 | 1945-09-14 |
| 1946 | 1946-05-03 | 1946-09-01 |
| 1947 | 1947-05-24 | 1947-09-24 |
| 1948 | 1948-05-27 | 1948-09-15 |
| 1949 | 1949-05-08 | 1949-09-28 |
| 1950 | 1950-06-11 | 1950-09-23 |
| 1951 | 1951-06-14 | 1951-09-18 |
| 1952 | 1952-06-27 | 1952-09-26 |
| 1953 | 1953-07-05 | 1953-09-15 |
| 1954 | 1954-05-18 | 1954-08-30 |
| 1955 | 1955-06-09 | 1955-09-11 |
| 1956 | 1956-05-17 | 1956-09-18 |
| 1957 | 1957-05-30 | 1957-09-24 |
| 1958 | 1958-05-20 | 1958-10-04 |
| 1959 | 1959-06-02 | 1959-09-13 |
| 1960 | 1960-06-24 | 1960-09-14 |
| 1961 | 1961-06-01 | 1961-09-05 |
| 1962 | 1962-06-24 | 1962-09-26 |
| 1963 | 1963-05-22 | 1963-09-29 |
| 1965 | 1965-05-29 | 1965-08-19 |
| 1966 | 1966-05-03 | 1966-09-24 |
| 1967 | 1967-06-14 | 1967-09-29 |
| 1969 | 1969-05-09 | 1969-09-13 |
| 1970 | 1970-05-25 | 1970-09-30 |
| 1975 | 1975-06-01 | 1975-09-16 |
| 1976 | 1976-06-28 | 1976-09-29 |
| 1977 | 1977-04-24 | 1977-08-23 |
| 1978 | 1978-06-02 | 1978-08-10 |
| 1979 | 1979-06-01 | 1979-09-22 |
| 1980 | 1980-07-02 | 1980-09-07 |
| 1981 | 1981-06-25 | 1981-09-19 |
| 1982 | 1982-05-25 | 1982-09-09 |
| 1983 | 1983-05-23 | 1983-08-20 |
| 1984 | 1984-05-29 | 1984-09-19 |
| 1985 | 1985-05-17 | 1985-08-29 |
| 1986 | 1986-05-25 | 1986-09-05 |
| 1987 | 1987-04-27 | 1987-09-25 |
| 1988 | 1988-05-12 | 1988-10-01 |
| 1989 | 1989-06-01 | 1989-09-25 |
| 1990 | 1990-06-23 | 1990-09-26 |
| 1991 | 1991-07-02 | 1991-09-28 |
| 1992 | 1992-05-05 | 1992-08-20 |
| 1993 | 1993-05-11 | 1993-09-11 |
| 1995 | 1995-05-28 | 1995-09-16 |
| 1996 | 1996-07-01 | 1996-09-12 |
| 1997 | 1997-05-12 | 1997-09-10 |
| 1998 | 1998-05-05 | 1998-09-17 |
| 1999 | 1999-05-24 | 1999-09-23 |
| 2000 | 2000-06-27 | 2000-09-17 |
| 2001 | 2001-05-22 | 2001-09-24 |
| 2002 | 2002-06-14 | 2002-09-16 |
| 2003 | 2003-05-24 | 2003-09-27 |
| 2004 | 2004-06-05 | 2004-09-01 |
| 2005 | 2005-05-28 | 2005-09-02 |
| 2006 | 2006-05-15 | 2006-09-29 |
| 2007 | 2007-05-31 | 2007-09-15 |
| 2008 | 2008-05-15 | 2008-09-19 |
| 2009 | 2009-05-29 | 2009-09-26 |
| 2010 | 2010-07-07 | 2010-08-26 |
| 2011 | 2011-07-05 | 2011-09-13 |
| 2012 | 2012-05-14 | 2012-09-20 |
| 2013 | 2013-05-06 | 2013-09-15 |
| 2014 | 2014-06-23 | 2014-09-22 |
| 2015 | 2015-06-06 | 2015-09-13 |
| 2016 | 2016-05-08 | 2016-08-31 |
| 2017 | 2017-05-23 | 2017-09-13 |
| 2018 | 2018-06-18 | 2018-08-17 |
| 2019 | 2019-05-12 | 2019-09-05 |
| 2020 | 2020-05-29 | 2020-10-07 |
| 2021 | 2021-05-17 | 2021-09-08 |
| 2022 | 2022-06-27 | 2022-09-28 |
| 2023 | 2023-05-02 | 2023-09-11 |
| 2024 | 2024-05-11 | 2024-09-08 |
| 2025 | 2025-05-28 | 2025-09-21 |
| 2026 | 2026-05-03 | 2026-08-27 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 104 | 73 | 1967 | 58 |
| 35 C (95 F): Days | 101 | 29 | 2021 | 6 |
| 40 C (104 F): Days | 14 | 4 | 2021 | 2 |
| 90 F (32.2 C): Days | 104 | 59 | 1958 | 32 |
| 100 F (37.8 C): Days | 59 | 9 | 1977 | 4 |
| 0 C (32 F): Ice days (max | 104 | 81 | 1955 | 16 |
| 0 C (32 F): Frost days (min | 105 | 222 | 1965 | 98 |
| -10 C (14 F): Days with min | 105 | 94 | 1916 | 10 |
| -20 C (-4 F): Days with min | 98 | 34 | 1937 | 7 |
| -30 C (-22 F): Days with min | 33 | 11 | 1950 | 1 |
| 20 C (68 F): Tropical nights (min | 11 | 4 | 1917 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 104 | 23 | 1948 | 3 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 65 | 5 | 1933 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 5 | 1 | 1923 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 78 | 15 | 1955 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 36 | 3 | 1970 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 3 | 1 | 1933 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.
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).