Hebgen Dam Threshold Days by Year (USC00244038)
15 fixed thresholds counted per year at Hebgen Dam (USC00244038): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Hebgen Dam Thresholds
- Hebgen Dam: nights with a minimum temperature at or below 0 C (32 F) in 100 years, most in 1911 with 287.
- Hebgen Dam: nights with a minimum temperature at or below -10 C (14 F) in 100 years, most in 1911 with 137.
- Hebgen Dam: nights with a minimum temperature at or below -20 C (-4 F) in 100 years, most in 1911 with 67.
- Hebgen Dam: days with a maximum temperature at or below 0 C (32 F) in 96 years, most in 1935 with 123.
- 15 fixed thresholds have at least one qualifying day at Hebgen Dam.
Days at or above 30 C (86 F)
87 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1914 | 4 | 18 |
| 1915 | 12 | 18 |
| 1916 | 14 | 18 |
| 1917 | 24 | 18 |
| 1918 | 5 | 18 |
| 1919 | 49 | 18 |
| 1920 | 6 | 4.6 |
| 1922 | 5 | 4.6 |
| 1923 | 4 | 4.6 |
| 1924 | 6 | 4.6 |
| 1925 | 2 | 4.6 |
| 1926 | 6 | 4.6 |
| 1927 | 2 | 4.6 |
| 1928 | 4 | 4.6 |
| 1929 | 6 | 4.6 |
| 1930 | 6 | 11.8 |
| 1931 | 20 | 11.8 |
| 1932 | 3 | 11.8 |
| 1933 | 20 | 11.8 |
| 1934 | 8 | 11.8 |
| 1935 | 17 | 11.8 |
| 1936 | 15 | 11.8 |
| 1937 | 7 | 11.8 |
| 1939 | 10 | 11.8 |
| 1940 | 25 | 7.5 |
| 1941 | 5 | 7.5 |
| 1942 | 10 | 7.5 |
| 1943 | 8 | 7.5 |
| 1945 | 4 | 7.5 |
| 1946 | 2 | 7.5 |
| 1948 | 1 | 7.5 |
| 1949 | 5 | 7.5 |
| 1950 | 4 | 5.8 |
| 1951 | 6 | 5.8 |
| 1953 | 7 | 5.8 |
| 1954 | 9 | 5.8 |
| 1955 | 6 | 5.8 |
| 1956 | 2 | 5.8 |
| 1958 | 5 | 5.8 |
| 1959 | 7 | 5.8 |
| 1960 | 9 | 5.8 |
| 1965 | 1 | 5.8 |
| 1966 | 12 | 5.8 |
| 1967 | 2 | 5.8 |
| 1968 | 3 | 5.8 |
| 1969 | 8 | 5.8 |
| 1970 | 5 | 4.3 |
| 1971 | 4 | 4.3 |
| 1972 | 3 | 4.3 |
| 1973 | 3 | 4.3 |
| 1974 | 9 | 4.3 |
| 1975 | 1 | 4.3 |
| 1976 | 5 | 4.3 |
| 1977 | 3 | 4.3 |
| 1978 | 3 | 4.3 |
| 1979 | 7 | 4.3 |
| 1980 | 5 | 6 |
| 1981 | 7 | 6 |
| 1982 | 1 | 6 |
| 1983 | 3 | 6 |
| 1985 | 7 | 6 |
| 1986 | 2 | 6 |
| 1987 | 1 | 6 |
| 1988 | 20 | 6 |
| 1989 | 8 | 6 |
| 1990 | 2 | 2.3 |
| 1992 | 1 | 2.3 |
| 1994 | 5 | 2.3 |
| 1995 | 1 | 2.3 |
| 2002 | 10 | 12.9 |
| 2003 | 24 | 12.9 |
| 2004 | 3 | 12.9 |
| 2006 | 16 | 12.9 |
| 2007 | 25 | 12.9 |
| 2008 | 7 | 12.9 |
| 2009 | 5 | 12.9 |
| 2010 | 4 | 7 |
| 2011 | 7 | 7 |
| 2016 | 11 | 7 |
| 2018 | 6 | 7 |
| 2020 | 6 | 17.1 |
| 2021 | 17 | 17.1 |
| 2022 | 24 | 17.1 |
| 2023 | 8 | 17.1 |
| 2024 | 17 | 17.1 |
| 2025 | 22 | 17.1 |
| 2026 | 26 | 17.1 |
| Year | First date | Last date |
|---|---|---|
| 1914 | 1914-08-06 | 1914-08-15 |
| 1915 | 1915-07-22 | 1915-08-31 |
| 1916 | 1916-07-06 | 1916-08-25 |
| 1917 | 1917-06-28 | 1917-09-04 |
| 1918 | 1918-06-10 | 1918-07-30 |
| 1919 | 1919-05-28 | 1919-08-31 |
| 1920 | 1920-07-20 | 1920-08-15 |
| 1922 | 1922-06-21 | 1922-08-24 |
| 1923 | 1923-07-20 | 1923-08-12 |
| 1924 | 1924-07-01 | 1924-08-29 |
| 1925 | 1925-07-14 | 1925-07-15 |
| 1926 | 1926-06-27 | 1926-08-26 |
| 1927 | 1927-07-18 | 1927-07-19 |
| 1928 | 1928-07-26 | 1928-08-11 |
| 1929 | 1929-07-24 | 1929-08-14 |
| 1930 | 1930-06-17 | 1930-07-15 |
| 1931 | 1931-07-13 | 1931-09-04 |
| 1932 | 1932-08-17 | 1932-08-19 |
| 1933 | 1933-06-21 | 1933-08-16 |
| 1934 | 1934-07-17 | 1934-08-28 |
| 1935 | 1935-07-13 | 1935-08-15 |
| 1936 | 1936-06-22 | 1936-08-09 |
| 1937 | 1937-07-04 | 1937-08-27 |
| 1939 | 1939-07-09 | 1939-08-16 |
| 1940 | 1940-06-16 | 1940-08-20 |
| 1941 | 1941-06-24 | 1941-08-08 |
| 1942 | 1942-07-04 | 1942-08-23 |
| 1943 | 1943-07-07 | 1943-09-13 |
| 1945 | 1945-07-25 | 1945-08-18 |
| 1946 | 1946-07-21 | 1946-07-22 |
| 1948 | 1948-08-29 | 1948-08-29 |
| 1949 | 1949-07-30 | 1949-08-07 |
| 1950 | 1950-09-01 | 1950-09-05 |
| 1951 | 1951-07-15 | 1951-07-24 |
| 1953 | 1953-07-11 | 1953-07-30 |
| 1954 | 1954-07-03 | 1954-08-30 |
| 1955 | 1955-07-16 | 1955-08-31 |
| 1956 | 1956-07-20 | 1956-07-23 |
| 1958 | 1958-08-07 | 1958-08-16 |
| 1959 | 1959-07-22 | 1959-08-04 |
| 1960 | 1960-07-18 | 1960-08-12 |
| 1965 | 1965-08-10 | 1965-08-10 |
| 1966 | 1966-07-18 | 1966-08-18 |
| 1967 | 1967-08-16 | 1967-08-17 |
| 1968 | 1968-07-20 | 1968-07-28 |
| 1969 | 1969-08-03 | 1969-08-24 |
| 1970 | 1970-06-27 | 1970-08-08 |
| 1971 | 1971-07-16 | 1971-08-15 |
| 1972 | 1972-08-09 | 1972-08-12 |
| 1973 | 1973-07-05 | 1973-07-11 |
| 1974 | 1974-06-15 | 1974-07-25 |
| 1975 | 1975-07-27 | 1975-07-27 |
| 1976 | 1976-06-30 | 1976-07-23 |
| 1977 | 1977-06-05 | 1977-07-19 |
| 1978 | 1978-07-26 | 1978-07-28 |
| 1979 | 1979-07-18 | 1979-09-07 |
| 1980 | 1980-07-22 | 1980-07-30 |
| 1981 | 1981-07-04 | 1981-08-28 |
| 1982 | 1982-07-22 | 1982-07-22 |
| 1983 | 1983-08-07 | 1983-08-11 |
| 1985 | 1985-07-03 | 1985-08-25 |
| 1986 | 1986-05-27 | 1986-08-18 |
| 1987 | 1987-07-27 | 1987-07-27 |
| 1988 | 1988-06-25 | 1988-08-25 |
| 1989 | 1989-07-04 | 1989-08-01 |
| 1990 | 1990-08-07 | 1990-08-08 |
| 1992 | 1992-08-14 | 1992-08-14 |
| 1994 | 1994-07-22 | 1994-08-16 |
| 1995 | 1995-08-07 | 1995-08-07 |
| 2002 | 2002-06-26 | 2002-08-14 |
| 2003 | 2003-07-10 | 2003-08-20 |
| 2004 | 2004-07-17 | 2004-08-14 |
| 2006 | 2006-07-14 | 2006-08-21 |
| 2007 | 2007-06-28 | 2007-09-03 |
| 2008 | 2008-07-26 | 2008-08-25 |
| 2009 | 2009-07-18 | 2009-08-28 |
| 2010 | 2010-07-16 | 2010-08-26 |
| 2011 | 2011-07-03 | 2011-08-27 |
| 2016 | 2016-06-28 | 2016-09-01 |
| 2018 | 2018-07-09 | 2018-08-11 |
| 2020 | 2020-08-02 | 2020-09-05 |
| 2021 | 2021-06-14 | 2021-09-09 |
| 2022 | 2022-07-08 | 2022-09-07 |
| 2023 | 2023-07-16 | 2023-08-17 |
| 2024 | 2024-06-23 | 2024-09-01 |
| 2025 | 2025-06-19 | 2025-09-03 |
| 2026 | 2026-07-05 | 2026-08-21 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 87 | 49 | 1919 | 26 |
| 35 C (95 F): Days | 7 | 5 | 1919 | 2 |
| 90 F (32.2 C): Days | 34 | 31 | 1919 | 10 |
| 0 C (32 F): Ice days (max | 96 | 123 | 1935 | 36 |
| 0 C (32 F): Frost days (min | 100 | 287 | 1911 | 135 |
| -10 C (14 F): Days with min | 100 | 137 | 1911 | 44 |
| -20 C (-4 F): Days with min | 100 | 67 | 1911 | 5 |
| -30 C (-22 F): Days with min | 94 | 22 | 1911 | 3 |
| -40 C (-40 F): Days with min | 20 | 2 | 1911 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 95 | 34 | 1971 | 5 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 63 | 5 | 1991 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 3 | 2 | 2007 | 2 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 93 | 40 | 1975 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 75 | 8 | 1971 | 2 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 4 | 1 | 1957 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.
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).