Morrisville 6 SW Threshold Days by Year (USC00305512)
18 fixed thresholds counted per year at Morrisville 6 SW (USC00305512): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Morrisville 6 SW Thresholds
- Morrisville 6 SW: nights with a minimum temperature at or below 0 C (32 F) in 86 years, most in 1956 with 194.
- Morrisville 6 SW: nights with a minimum temperature at or below -10 C (14 F) in 86 years, most in 1955 with 77.
- Morrisville 6 SW: nights with a minimum temperature at or below -20 C (-4 F) in 86 years, most in 1963 with 28.
- Morrisville 6 SW: days with a maximum temperature at or below 0 C (32 F) in 85 years, most in 1947 with 84.
- 18 fixed thresholds have at least one qualifying day at Morrisville 6 SW.
Days at or above 30 C (86 F)
82 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1912 | 12 | 13.9 |
| 1913 | 29 | 13.9 |
| 1914 | 10 | 13.9 |
| 1915 | 3 | 13.9 |
| 1916 | 24 | 13.9 |
| 1917 | 6 | 13.9 |
| 1919 | 13 | 13.9 |
| 1920 | 10 | 14.4 |
| 1921 | 34 | 14.4 |
| 1922 | 13 | 14.4 |
| 1923 | 25 | 14.4 |
| 1927 | 5 | 14.4 |
| 1928 | 8 | 14.4 |
| 1929 | 6 | 14.4 |
| 1930 | 10 | 18.6 |
| 1931 | 21 | 18.6 |
| 1932 | 11 | 18.6 |
| 1933 | 25 | 18.6 |
| 1934 | 22 | 18.6 |
| 1935 | 11 | 18.6 |
| 1936 | 21 | 18.6 |
| 1937 | 18 | 18.6 |
| 1939 | 28 | 18.6 |
| 1940 | 9 | 9 |
| 1942 | 3 | 9 |
| 1943 | 9 | 9 |
| 1944 | 21 | 9 |
| 1945 | 7 | 9 |
| 1946 | 1 | 9 |
| 1947 | 9 | 9 |
| 1948 | 7 | 9 |
| 1949 | 15 | 9 |
| 1950 | 2 | 10.3 |
| 1951 | 4 | 10.3 |
| 1952 | 13 | 10.3 |
| 1953 | 18 | 10.3 |
| 1954 | 8 | 10.3 |
| 1955 | 34 | 10.3 |
| 1956 | 5 | 10.3 |
| 1957 | 6 | 10.3 |
| 1958 | 3 | 10.3 |
| 1960 | 5 | 10.4 |
| 1961 | 15 | 10.4 |
| 1962 | 9 | 10.4 |
| 1963 | 9 | 10.4 |
| 1964 | 21 | 10.4 |
| 1966 | 11 | 10.4 |
| 1967 | 3 | 10.4 |
| 1970 | 7 | 7 |
| 1971 | 6 | 7 |
| 1977 | 8 | 7 |
| 1981 | 7 | 8.5 |
| 1982 | 4 | 8.5 |
| 1983 | 12 | 8.5 |
| 1984 | 3 | 8.5 |
| 1986 | 3 | 8.5 |
| 1987 | 12 | 8.5 |
| 1988 | 24 | 8.5 |
| 1989 | 3 | 8.5 |
| 1990 | 3 | 8.5 |
| 1999 | 14 | 8.5 |
| 2001 | 5 | 5.9 |
| 2002 | 15 | 5.9 |
| 2003 | 1 | 5.9 |
| 2005 | 14 | 5.9 |
| 2006 | 4 | 5.9 |
| 2007 | 4 | 5.9 |
| 2008 | 2 | 5.9 |
| 2009 | 2 | 5.9 |
| 2012 | 5 | 6.2 |
| 2015 | 7 | 6.2 |
| 2016 | 5 | 6.2 |
| 2017 | 6 | 6.2 |
| 2018 | 8 | 6.2 |
| 2019 | 6 | 6.2 |
| 2020 | 11 | 8.9 |
| 2021 | 7 | 8.9 |
| 2022 | 9 | 8.9 |
| 2023 | 9 | 8.9 |
| 2024 | 10 | 8.9 |
| 2025 | 9 | 8.9 |
| 2026 | 7 | 8.9 |
| Year | First date | Last date |
|---|---|---|
| 1912 | 1912-07-02 | 1912-07-15 |
| 1913 | 1913-06-16 | 1913-09-07 |
| 1914 | 1914-05-26 | 1914-09-23 |
| 1915 | 1915-09-14 | 1915-09-16 |
| 1916 | 1916-07-11 | 1916-08-26 |
| 1917 | 1917-07-23 | 1917-07-31 |
| 1919 | 1919-06-02 | 1919-07-27 |
| 1920 | 1920-06-28 | 1920-09-26 |
| 1921 | 1921-04-26 | 1921-09-11 |
| 1922 | 1922-06-08 | 1922-10-06 |
| 1923 | 1923-06-05 | 1923-09-02 |
| 1927 | 1927-07-12 | 1927-10-02 |
| 1928 | 1928-07-08 | 1928-08-16 |
| 1929 | 1929-05-30 | 1929-09-04 |
| 1930 | 1930-06-05 | 1930-08-10 |
| 1931 | 1931-05-30 | 1931-09-14 |
| 1932 | 1932-05-26 | 1932-09-20 |
| 1933 | 1933-06-08 | 1933-08-01 |
| 1934 | 1934-05-31 | 1934-08-11 |
| 1935 | 1935-07-05 | 1935-08-18 |
| 1936 | 1936-07-07 | 1936-08-23 |
| 1937 | 1937-05-31 | 1937-09-03 |
| 1939 | 1939-05-27 | 1939-10-10 |
| 1940 | 1940-07-18 | 1940-08-11 |
| 1942 | 1942-07-14 | 1942-08-22 |
| 1943 | 1943-06-05 | 1943-09-02 |
| 1944 | 1944-05-06 | 1944-08-17 |
| 1945 | 1945-06-26 | 1945-09-09 |
| 1946 | 1946-07-20 | 1946-07-20 |
| 1947 | 1947-06-12 | 1947-08-26 |
| 1948 | 1948-06-30 | 1948-09-14 |
| 1949 | 1949-06-13 | 1949-08-28 |
| 1950 | 1950-06-27 | 1950-07-10 |
| 1951 | 1951-07-17 | 1951-10-06 |
| 1952 | 1952-06-18 | 1952-09-15 |
| 1953 | 1953-06-21 | 1953-09-05 |
| 1954 | 1954-06-23 | 1954-08-25 |
| 1955 | 1955-06-19 | 1955-09-20 |
| 1956 | 1956-06-14 | 1956-08-18 |
| 1957 | 1957-06-16 | 1957-08-04 |
| 1958 | 1958-07-02 | 1958-09-01 |
| 1960 | 1960-07-29 | 1960-09-09 |
| 1961 | 1961-06-13 | 1961-09-24 |
| 1962 | 1962-04-28 | 1962-07-09 |
| 1963 | 1963-06-30 | 1963-07-29 |
| 1964 | 1964-05-24 | 1964-09-11 |
| 1966 | 1966-06-06 | 1966-08-10 |
| 1967 | 1967-06-06 | 1967-06-18 |
| 1970 | 1970-06-12 | 1970-09-25 |
| 1971 | 1971-05-20 | 1971-09-07 |
| 1977 | 1977-05-21 | 1977-08-29 |
| 1981 | 1981-06-15 | 1981-07-12 |
| 1982 | 1982-07-07 | 1982-07-18 |
| 1983 | 1983-06-14 | 1983-09-20 |
| 1984 | 1984-06-07 | 1984-06-10 |
| 1986 | 1986-07-06 | 1986-07-18 |
| 1987 | 1987-05-30 | 1987-08-18 |
| 1988 | 1988-06-14 | 1988-08-14 |
| 1989 | 1989-07-24 | 1989-08-04 |
| 1990 | 1990-04-28 | 1990-07-05 |
| 1999 | 1999-06-08 | 1999-09-05 |
| 2001 | 2001-06-15 | 2001-08-09 |
| 2002 | 2002-06-27 | 2002-09-11 |
| 2003 | 2003-06-27 | 2003-06-27 |
| 2005 | 2005-06-09 | 2005-08-11 |
| 2006 | 2006-05-31 | 2006-08-03 |
| 2007 | 2007-06-28 | 2007-08-26 |
| 2008 | 2008-06-07 | 2008-06-10 |
| 2009 | 2009-04-28 | 2009-08-18 |
| 2012 | 2012-07-07 | 2012-07-24 |
| 2015 | 2015-07-20 | 2015-09-09 |
| 2016 | 2016-05-28 | 2016-08-14 |
| 2017 | 2017-06-12 | 2017-09-28 |
| 2018 | 2018-06-19 | 2018-08-07 |
| 2019 | 2019-07-04 | 2019-07-21 |
| 2020 | 2020-05-27 | 2020-08-25 |
| 2021 | 2021-05-22 | 2021-08-27 |
| 2022 | 2022-05-22 | 2022-08-30 |
| 2023 | 2023-06-01 | 2023-09-08 |
| 2024 | 2024-06-18 | 2024-08-02 |
| 2025 | 2025-06-24 | 2025-08-17 |
| 2026 | 2026-05-19 | 2026-07-15 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 82 | 34 | 1921 | 7 |
| 35 C (95 F): Days | 9 | 5 | 1933 | 1 |
| 90 F (32.2 C): Days | 48 | 16 | 1933 | 3 |
| 100 F (37.8 C): Days | 1 | 1 | 1936 | 1 |
| 0 C (32 F): Ice days (max | 85 | 84 | 1947 | 51 |
| 0 C (32 F): Frost days (min | 86 | 194 | 1956 | 96 |
| -10 C (14 F): Days with min | 86 | 77 | 1955 | 46 |
| -20 C (-4 F): Days with min | 86 | 28 | 1963 | 13 |
| -30 C (-22 F): Days with min | 29 | 6 | 1914 | 2 |
| 20 C (68 F): Tropical nights (min | 58 | 7 | 1936 | 1 |
| 25 C (77 F): Days with min | 3 | 1 | 1921 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 81 | 52 | 2007 | 27 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 81 | 13 | 1992 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 43 | 4 | 2006 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1952 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 76 | 20 | 2007 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 40 | 4 | 1971 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 4 | 1 | 1961 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.
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 (2026-10-12).