Henshaw Dam Threshold Days by Year (USC00043914)
19 fixed thresholds counted per year at Henshaw Dam (USC00043914): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Henshaw Dam Thresholds
- Henshaw Dam: days with 10 mm (0.39 in) or more of precipitation in 82 years, most in 1983 with 36.
- Henshaw Dam: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1983 with 21.
- Henshaw Dam: days with a maximum temperature at or above 30 C (86 F) in 80 years, most in 2001 with 136.
- Henshaw Dam: days with a maximum temperature at or above 35 C (95 F) in 80 years, most in 2003 with 71.
- 19 fixed thresholds have at least one qualifying day at Henshaw Dam.
Days at or above 30 C (86 F)
80 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1943 | 95 | 86.9 |
| 1944 | 71 | 86.9 |
| 1945 | 74 | 86.9 |
| 1946 | 95 | 86.9 |
| 1947 | 90 | 86.9 |
| 1948 | 91 | 86.9 |
| 1949 | 92 | 86.9 |
| 1950 | 98 | 100.3 |
| 1951 | 96 | 100.3 |
| 1952 | 109 | 100.3 |
| 1953 | 98 | 100.3 |
| 1954 | 97 | 100.3 |
| 1956 | 95 | 100.3 |
| 1957 | 95 | 100.3 |
| 1958 | 115 | 100.3 |
| 1959 | 100 | 100.3 |
| 1960 | 119 | 100.1 |
| 1961 | 106 | 100.1 |
| 1962 | 103 | 100.1 |
| 1963 | 94 | 100.1 |
| 1964 | 103 | 100.1 |
| 1965 | 91 | 100.1 |
| 1966 | 98 | 100.1 |
| 1967 | 101 | 100.1 |
| 1968 | 94 | 100.1 |
| 1969 | 92 | 100.1 |
| 1970 | 113 | 98 |
| 1971 | 112 | 98 |
| 1972 | 92 | 98 |
| 1973 | 103 | 98 |
| 1974 | 112 | 98 |
| 1975 | 89 | 98 |
| 1976 | 65 | 98 |
| 1980 | 93 | 91 |
| 1981 | 110 | 91 |
| 1982 | 65 | 91 |
| 1983 | 77 | 91 |
| 1984 | 98 | 91 |
| 1985 | 77 | 91 |
| 1986 | 65 | 91 |
| 1987 | 73 | 91 |
| 1988 | 127 | 91 |
| 1989 | 125 | 91 |
| 1990 | 119 | 109.3 |
| 1991 | 109 | 109.3 |
| 1992 | 117 | 109.3 |
| 1993 | 86 | 109.3 |
| 1994 | 109 | 109.3 |
| 1995 | 111 | 109.3 |
| 1996 | 130 | 109.3 |
| 1997 | 109 | 109.3 |
| 1998 | 81 | 109.3 |
| 1999 | 122 | 109.3 |
| 2000 | 109 | 121.7 |
| 2001 | 136 | 121.7 |
| 2002 | 125 | 121.7 |
| 2003 | 128 | 121.7 |
| 2004 | 128 | 121.7 |
| 2005 | 107 | 121.7 |
| 2006 | 115 | 121.7 |
| 2007 | 128 | 121.7 |
| 2008 | 125 | 121.7 |
| 2009 | 116 | 121.7 |
| 2010 | 97 | 107.9 |
| 2011 | 105 | 107.9 |
| 2012 | 115 | 107.9 |
| 2013 | 108 | 107.9 |
| 2014 | 122 | 107.9 |
| 2015 | 108 | 107.9 |
| 2016 | 105 | 107.9 |
| 2017 | 114 | 107.9 |
| 2018 | 123 | 107.9 |
| 2019 | 82 | 107.9 |
| 2020 | 129 | 109 |
| 2021 | 102 | 109 |
| 2022 | 112 | 109 |
| 2023 | 80 | 109 |
| 2024 | 114 | 109 |
| 2025 | 105 | 109 |
| 2026 | 121 | 109 |
| Year | First date | Last date |
|---|---|---|
| 1943 | 1943-05-23 | 1943-10-17 |
| 1944 | 1944-06-06 | 1944-10-19 |
| 1945 | 1945-04-20 | 1945-10-04 |
| 1946 | 1946-04-24 | 1946-09-29 |
| 1947 | 1947-05-01 | 1947-10-20 |
| 1948 | 1948-04-15 | 1948-10-09 |
| 1949 | 1949-04-22 | 1949-10-30 |
| 1950 | 1950-04-20 | 1950-10-30 |
| 1951 | 1951-05-26 | 1951-10-20 |
| 1952 | 1952-05-24 | 1952-10-29 |
| 1953 | 1953-06-12 | 1953-10-10 |
| 1954 | 1954-04-17 | 1954-10-22 |
| 1956 | 1956-05-17 | 1956-10-22 |
| 1957 | 1957-06-02 | 1957-10-01 |
| 1958 | 1958-04-20 | 1958-10-19 |
| 1959 | 1959-04-02 | 1959-10-25 |
| 1960 | 1960-04-06 | 1960-11-02 |
| 1961 | 1961-04-03 | 1961-11-05 |
| 1962 | 1962-04-13 | 1962-11-02 |
| 1963 | 1963-05-07 | 1963-10-10 |
| 1964 | 1964-04-16 | 1964-10-13 |
| 1965 | 1965-04-28 | 1965-11-04 |
| 1966 | 1966-04-01 | 1966-11-01 |
| 1967 | 1967-05-17 | 1967-11-14 |
| 1968 | 1968-05-20 | 1968-10-29 |
| 1969 | 1969-05-10 | 1969-10-09 |
| 1970 | 1970-05-05 | 1970-10-13 |
| 1971 | 1971-01-19 | 1971-10-14 |
| 1972 | 1972-03-06 | 1972-10-12 |
| 1973 | 1973-05-16 | 1973-11-11 |
| 1974 | 1974-05-26 | 1974-10-20 |
| 1975 | 1975-05-13 | 1975-09-28 |
| 1976 | 1976-05-01 | 1976-10-14 |
| 1980 | 1980-04-09 | 1980-11-06 |
| 1981 | 1981-05-25 | 1981-09-29 |
| 1982 | 1982-05-24 | 1982-10-24 |
| 1983 | 1983-05-24 | 1983-10-13 |
| 1984 | 1984-04-15 | 1984-09-30 |
| 1985 | 1985-05-23 | 1985-10-06 |
| 1986 | 1986-05-19 | 1986-09-09 |
| 1987 | 1987-04-16 | 1987-10-07 |
| 1988 | 1988-03-27 | 1988-11-06 |
| 1989 | 1989-04-05 | 1989-11-11 |
| 1990 | 1990-05-05 | 1990-11-14 |
| 1991 | 1991-05-08 | 1991-11-08 |
| 1992 | 1992-04-25 | 1992-10-18 |
| 1993 | 1993-04-30 | 1993-10-05 |
| 1994 | 1994-04-21 | 1994-10-11 |
| 1995 | 1995-05-30 | 1995-10-28 |
| 1996 | 1996-04-24 | 1996-11-13 |
| 1997 | 1997-03-20 | 1997-11-05 |
| 1998 | 1998-07-01 | 1998-10-13 |
| 1999 | 1999-04-19 | 1999-11-15 |
| 2000 | 2000-04-26 | 2000-10-21 |
| 2001 | 2001-04-26 | 2001-10-27 |
| 2002 | 2002-04-02 | 2002-10-15 |
| 2003 | 2003-06-01 | 2003-10-29 |
| 2004 | 2004-03-21 | 2004-10-17 |
| 2005 | 2005-05-14 | 2005-10-15 |
| 2006 | 2006-05-11 | 2006-11-09 |
| 2007 | 2007-03-13 | 2007-11-19 |
| 2008 | 2008-04-29 | 2008-10-30 |
| 2009 | 2009-04-21 | 2009-11-04 |
| 2010 | 2010-06-05 | 2010-10-16 |
| 2011 | 2011-04-01 | 2011-10-24 |
| 2012 | 2012-04-21 | 2012-11-07 |
| 2013 | 2013-04-29 | 2013-10-20 |
| 2014 | 2014-04-09 | 2014-10-25 |
| 2015 | 2015-03-28 | 2015-11-02 |
| 2016 | 2016-05-13 | 2016-11-15 |
| 2017 | 2017-04-22 | 2017-11-26 |
| 2018 | 2018-04-11 | 2018-11-04 |
| 2019 | 2019-04-09 | 2019-10-27 |
| 2020 | 2020-04-24 | 2020-11-06 |
| 2021 | 2021-04-30 | 2021-11-14 |
| 2022 | 2022-03-26 | 2022-10-11 |
| 2023 | 2023-04-30 | 2023-10-22 |
| 2024 | 2024-06-05 | 2024-10-27 |
| 2025 | 2025-04-12 | 2025-11-12 |
| 2026 | 2026-02-28 | 2026-10-10 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 80 | 136 | 2001 | 121 |
| 35 C (95 F): Days | 80 | 71 | 2003 | 51 |
| 40 C (104 F): Days | 51 | 15 | 1980 | 1 |
| 45 C (113 F): Days | 1 | 4 | 1980 | 4 |
| 90 F (32.2 C): Days | 80 | 113 | 2003 | 97 |
| 100 F (37.8 C): Days | 78 | 36 | 1980 | 20 |
| 110 F (43.3 C): Days | 4 | 4 | 1980 | 1 |
| 120 F (48.9 C): Days | 1 | 1 | 1980 | 1 |
| 0 C (32 F): Frost days (min | 80 | 191 | 2004 | 30 |
| -10 C (14 F): Days with min | 16 | 4 | 1954 | 1 |
| 20 C (68 F): Tropical nights (min | 22 | 8 | 2009 | 1 |
| 25 C (77 F): Days with min | 1 | 1 | 2006 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 82 | 36 | 1983 | 9 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 81 | 21 | 1983 | 6 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 68 | 10 | 1980 | 4 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 18 | 2 | 1943 | 2 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1965 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 5 | 3 | 1949 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 1 | 1949 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.
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).