Grand Forks UNIV (NWS) Threshold Days by Year
19 fixed thresholds counted per year at Grand Forks UNIV (NWS) (USC00323621): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Grand Forks UNIV (NWS) Thresholds
- Grand Forks UNIV (NWS): nights with a minimum temperature at or below 0 C (32 F) in 127 years, most in 1907 with 223.
- Grand Forks UNIV (NWS): nights with a minimum temperature at or below -10 C (14 F) in 127 years, most in 1950 with 130.
- Grand Forks UNIV (NWS): nights with a minimum temperature at or below -20 C (-4 F) in 127 years, most in 1950 with 78.
- Grand Forks UNIV (NWS): days with a maximum temperature at or above 30 C (86 F) in 123 years, most in 1988 with 62.
- 19 fixed thresholds have at least one qualifying day at Grand Forks UNIV (NWS).
Days at or above 30 C (86 F)
123 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1894 | 41 | 16.3 |
| 1895 | 7 | 16.3 |
| 1896 | 12 | 16.3 |
| 1898 | 5 | 16.3 |
| 1900 | 24 | 16.3 |
| 1901 | 15 | 16.3 |
| 1902 | 4 | 16.3 |
| 1903 | 13 | 16.3 |
| 1904 | 2 | 16.3 |
| 1905 | 11 | 16.3 |
| 1906 | 21 | 16.3 |
| 1907 | 8 | 16.3 |
| 1908 | 38 | 16.3 |
| 1909 | 27 | 16.3 |
| 1910 | 42 | 21.7 |
| 1911 | 15 | 21.7 |
| 1912 | 13 | 21.7 |
| 1913 | 30 | 21.7 |
| 1914 | 23 | 21.7 |
| 1915 | 14 | 21.7 |
| 1916 | 19 | 21.7 |
| 1917 | 21 | 21.7 |
| 1918 | 14 | 21.7 |
| 1919 | 26 | 21.7 |
| 1920 | 29 | 21.4 |
| 1921 | 30 | 21.4 |
| 1922 | 32 | 21.4 |
| 1923 | 29 | 21.4 |
| 1924 | 9 | 21.4 |
| 1925 | 16 | 21.4 |
| 1926 | 21 | 21.4 |
| 1927 | 11 | 21.4 |
| 1928 | 11 | 21.4 |
| 1929 | 26 | 21.4 |
| 1930 | 36 | 38.8 |
| 1931 | 40 | 38.8 |
| 1932 | 35 | 38.8 |
| 1933 | 46 | 38.8 |
| 1934 | 42 | 38.8 |
| 1935 | 27 | 38.8 |
| 1936 | 54 | 38.8 |
| 1937 | 30 | 38.8 |
| 1938 | 33 | 38.8 |
| 1939 | 45 | 38.8 |
| 1940 | 35 | 25.3 |
| 1941 | 34 | 25.3 |
| 1942 | 9 | 25.3 |
| 1943 | 25 | 25.3 |
| 1944 | 16 | 25.3 |
| 1945 | 17 | 25.3 |
| 1946 | 30 | 25.3 |
| 1947 | 29 | 25.3 |
| 1948 | 30 | 25.3 |
| 1949 | 28 | 25.3 |
| 1950 | 13 | 23.9 |
| 1951 | 12 | 23.9 |
| 1952 | 33 | 23.9 |
| 1953 | 29 | 23.9 |
| 1954 | 17 | 23.9 |
| 1955 | 36 | 23.9 |
| 1956 | 18 | 23.9 |
| 1957 | 29 | 23.9 |
| 1958 | 19 | 23.9 |
| 1959 | 33 | 23.9 |
| 1960 | 31 | 26.6 |
| 1961 | 44 | 26.6 |
| 1962 | 13 | 26.6 |
| 1963 | 35 | 26.6 |
| 1964 | 28 | 26.6 |
| 1966 | 27 | 26.6 |
| 1967 | 26 | 26.6 |
| 1968 | 10 | 26.6 |
| 1969 | 25 | 26.6 |
| 1970 | 42 | 30.3 |
| 1971 | 15 | 30.3 |
| 1972 | 28 | 30.3 |
| 1973 | 28 | 30.3 |
| 1974 | 32 | 30.3 |
| 1976 | 52 | 30.3 |
| 1977 | 20 | 30.3 |
| 1978 | 25 | 30.3 |
| 1980 | 50 | 42.2 |
| 1981 | 23 | 42.2 |
| 1986 | 28 | 42.2 |
| 1987 | 47 | 42.2 |
| 1988 | 62 | 42.2 |
| 1989 | 43 | 42.2 |
| 1990 | 41 | 22.6 |
| 1991 | 33 | 22.6 |
| 1992 | 19 | 22.6 |
| 1993 | 14 | 22.6 |
| 1994 | 12 | 22.6 |
| 1995 | 25 | 22.6 |
| 1996 | 29 | 22.6 |
| 1997 | 16 | 22.6 |
| 1998 | 22 | 22.6 |
| 1999 | 15 | 22.6 |
| 2001 | 30 | 19.1 |
| 2002 | 28 | 19.1 |
| 2003 | 18 | 19.1 |
| 2004 | 7 | 19.1 |
| 2005 | 25 | 19.1 |
| 2006 | 28 | 19.1 |
| 2007 | 20 | 19.1 |
| 2008 | 11 | 19.1 |
| 2009 | 5 | 19.1 |
| 2010 | 17 | 22.3 |
| 2011 | 16 | 22.3 |
| 2012 | 41 | 22.3 |
| 2013 | 28 | 22.3 |
| 2014 | 11 | 22.3 |
| 2015 | 25 | 22.3 |
| 2016 | 13 | 22.3 |
| 2017 | 18 | 22.3 |
| 2018 | 31 | 22.3 |
| 2019 | 23 | 22.3 |
| 2020 | 23 | 29.1 |
| 2021 | 48 | 29.1 |
| 2022 | 20 | 29.1 |
| 2023 | 36 | 29.1 |
| 2024 | 21 | 29.1 |
| 2025 | 24 | 29.1 |
| 2026 | 32 | 29.1 |
| Year | First date | Last date |
|---|---|---|
| 1894 | 1894-06-02 | 1894-09-06 |
| 1895 | 1895-07-05 | 1895-09-19 |
| 1896 | 1896-05-06 | 1896-09-07 |
| 1898 | 1898-07-13 | 1898-08-29 |
| 1900 | 1900-05-11 | 1900-09-01 |
| 1901 | 1901-05-16 | 1901-10-22 |
| 1902 | 1902-06-09 | 1902-07-24 |
| 1903 | 1903-06-26 | 1903-08-17 |
| 1904 | 1904-06-17 | 1904-07-16 |
| 1905 | 1905-07-15 | 1905-09-29 |
| 1906 | 1906-05-11 | 1906-09-10 |
| 1907 | 1907-06-16 | 1907-08-17 |
| 1908 | 1908-04-21 | 1908-09-22 |
| 1909 | 1909-05-04 | 1909-10-07 |
| 1910 | 1910-05-27 | 1910-08-28 |
| 1911 | 1911-05-17 | 1911-08-20 |
| 1912 | 1912-06-23 | 1912-09-05 |
| 1913 | 1913-05-27 | 1913-09-06 |
| 1914 | 1914-06-02 | 1914-10-01 |
| 1915 | 1915-07-12 | 1915-09-06 |
| 1916 | 1916-07-05 | 1916-09-03 |
| 1917 | 1917-05-16 | 1917-09-23 |
| 1918 | 1918-05-04 | 1918-08-27 |
| 1919 | 1919-05-27 | 1919-09-07 |
| 1920 | 1920-06-07 | 1920-10-06 |
| 1921 | 1921-05-21 | 1921-09-01 |
| 1922 | 1922-06-04 | 1922-10-03 |
| 1923 | 1923-05-27 | 1923-09-21 |
| 1924 | 1924-06-16 | 1924-08-29 |
| 1925 | 1925-05-19 | 1925-08-28 |
| 1926 | 1926-04-20 | 1926-09-01 |
| 1927 | 1927-06-19 | 1927-09-14 |
| 1928 | 1928-05-07 | 1928-09-07 |
| 1929 | 1929-05-25 | 1929-09-22 |
| 1930 | 1930-05-03 | 1930-09-23 |
| 1931 | 1931-05-14 | 1931-09-11 |
| 1932 | 1932-05-13 | 1932-09-14 |
| 1933 | 1933-05-17 | 1933-09-09 |
| 1934 | 1934-04-29 | 1934-10-10 |
| 1935 | 1935-07-01 | 1935-08-15 |
| 1936 | 1936-05-22 | 1936-09-22 |
| 1937 | 1937-05-28 | 1937-10-03 |
| 1938 | 1938-06-05 | 1938-09-27 |
| 1939 | 1939-05-05 | 1939-09-18 |
| 1940 | 1940-05-31 | 1940-09-06 |
| 1941 | 1941-05-04 | 1941-09-19 |
| 1942 | 1942-07-09 | 1942-08-21 |
| 1943 | 1943-06-18 | 1943-08-21 |
| 1944 | 1944-05-27 | 1944-08-19 |
| 1945 | 1945-06-21 | 1945-09-06 |
| 1946 | 1946-05-28 | 1946-08-15 |
| 1947 | 1947-04-28 | 1947-10-05 |
| 1948 | 1948-05-19 | 1948-09-11 |
| 1949 | 1949-06-05 | 1949-08-25 |
| 1950 | 1950-06-06 | 1950-09-07 |
| 1951 | 1951-05-23 | 1951-08-01 |
| 1952 | 1952-04-26 | 1952-09-27 |
| 1953 | 1953-05-07 | 1953-10-01 |
| 1954 | 1954-06-13 | 1954-08-31 |
| 1955 | 1955-05-02 | 1955-09-05 |
| 1956 | 1956-06-05 | 1956-09-27 |
| 1957 | 1957-06-19 | 1957-08-25 |
| 1958 | 1958-05-12 | 1958-09-23 |
| 1959 | 1959-05-02 | 1959-09-09 |
| 1960 | 1960-05-31 | 1960-09-20 |
| 1961 | 1961-05-20 | 1961-09-08 |
| 1962 | 1962-06-24 | 1962-08-27 |
| 1963 | 1963-05-30 | 1963-09-26 |
| 1964 | 1964-05-20 | 1964-09-09 |
| 1966 | 1966-05-21 | 1966-09-12 |
| 1967 | 1967-05-24 | 1967-09-07 |
| 1968 | 1968-06-03 | 1968-09-14 |
| 1969 | 1969-07-10 | 1969-09-12 |
| 1970 | 1970-05-17 | 1970-09-19 |
| 1971 | 1971-07-24 | 1971-09-03 |
| 1972 | 1972-05-16 | 1972-08-30 |
| 1973 | 1973-07-01 | 1973-08-31 |
| 1974 | 1974-06-03 | 1974-09-26 |
| 1976 | 1976-05-09 | 1976-09-30 |
| 1977 | 1977-04-30 | 1977-07-24 |
| 1978 | 1978-05-26 | 1978-09-10 |
| 1980 | 1980-04-20 | 1980-09-30 |
| 1981 | 1981-07-05 | 1981-09-12 |
| 1986 | 1986-05-04 | 1986-08-20 |
| 1987 | 1987-04-18 | 1987-09-03 |
| 1988 | 1988-05-18 | 1988-08-25 |
| 1989 | 1989-05-16 | 1989-09-30 |
| 1990 | 1990-04-21 | 1990-09-24 |
| 1991 | 1991-05-11 | 1991-09-07 |
| 1992 | 1992-04-30 | 1992-10-01 |
| 1993 | 1993-05-13 | 1993-08-25 |
| 1994 | 1994-05-18 | 1994-09-10 |
| 1995 | 1995-06-14 | 1995-09-12 |
| 1996 | 1996-06-09 | 1996-09-09 |
| 1997 | 1997-06-01 | 1997-08-26 |
| 1998 | 1998-06-25 | 1998-09-17 |
| 1999 | 1999-05-28 | 1999-08-26 |
| 2001 | 2001-06-24 | 2001-09-06 |
| 2002 | 2002-04-16 | 2002-09-17 |
| 2003 | 2003-06-15 | 2003-09-08 |
| 2004 | 2004-06-29 | 2004-09-19 |
| 2005 | 2005-04-18 | 2005-09-30 |
| 2006 | 2006-05-23 | 2006-09-14 |
| 2007 | 2007-06-11 | 2007-09-23 |
| 2008 | 2008-06-30 | 2008-09-01 |
| 2009 | 2009-06-26 | 2009-08-13 |
| 2010 | 2010-05-29 | 2010-08-27 |
| 2011 | 2011-06-30 | 2011-10-05 |
| 2012 | 2012-05-14 | 2012-09-10 |
| 2013 | 2013-05-13 | 2013-09-06 |
| 2014 | 2014-05-24 | 2014-09-08 |
| 2015 | 2015-06-08 | 2015-10-11 |
| 2016 | 2016-05-05 | 2016-08-23 |
| 2017 | 2017-06-02 | 2017-09-12 |
| 2018 | 2018-05-07 | 2018-09-16 |
| 2019 | 2019-05-30 | 2019-09-17 |
| 2020 | 2020-06-01 | 2020-09-22 |
| 2021 | 2021-05-19 | 2021-09-29 |
| 2022 | 2022-06-12 | 2022-09-01 |
| 2023 | 2023-05-22 | 2023-10-01 |
| 2024 | 2024-06-12 | 2024-10-10 |
| 2025 | 2025-05-11 | 2025-10-03 |
| 2026 | 2026-05-25 | 2026-08-24 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 123 | 62 | 1988 | 32 |
| 35 C (95 F): Days | 91 | 23 | 1936 | 5 |
| 40 C (104 F): Days | 5 | 8 | 1936 | 1 |
| 90 F (32.2 C): Days | 120 | 40 | 1988 | 21 |
| 100 F (37.8 C): Days | 22 | 12 | 1936 | 1 |
| 0 C (32 F): Ice days (max | 123 | 133 | 1950 | 60 |
| 0 C (32 F): Frost days (min | 127 | 223 | 1907 | 117 |
| -10 C (14 F): Days with min | 127 | 130 | 1950 | 53 |
| -20 C (-4 F): Days with min | 127 | 78 | 1950 | 27 |
| -30 C (-22 F): Days with min | 117 | 34 | 1936 | 3 |
| -40 C (-40 F): Days with min | 4 | 4 | 1936 | 4 |
| 20 C (68 F): Tropical nights (min | 108 | 18 | 1988 | 13 |
| 25 C (77 F): Days with min | 6 | 2 | 1936 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 120 | 25 | 1896 | 14 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 116 | 8 | 1901 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 60 | 3 | 1898 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 2002 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 79 | 10 | 1996 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 15 | 2 | 1996 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.
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 2026-10-13 (13 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-13).