Dworshak Fish Hatchery Threshold Days by Year
16 fixed thresholds counted per year at Dworshak Fish Hatchery (USC00102845): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Dworshak Fish Hatchery Thresholds
- Dworshak Fish Hatchery: days with a maximum temperature at or above 30 C (86 F) in 56 years, most in 1967 with 93.
- Dworshak Fish Hatchery: days with a maximum temperature at or above 35 C (95 F) in 56 years, most in 1998 with 48.
- Dworshak Fish Hatchery: days with a maximum temperature at or above 90 F (32.2 C) in 56 years, most in 1994 with 72.
- Dworshak Fish Hatchery: days with a maximum temperature at or above 100 F (37.8 C) in 55 years, most in 1998 with 26.
- 16 fixed thresholds have at least one qualifying day at Dworshak Fish Hatchery.
Days at or above 30 C (86 F)
56 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1967 | 93 | 77 |
| 1968 | 57 | 77 |
| 1969 | 81 | 77 |
| 1970 | 75 | 61.5 |
| 1971 | 60 | 61.5 |
| 1972 | 64 | 61.5 |
| 1973 | 67 | 61.5 |
| 1974 | 71 | 61.5 |
| 1975 | 54 | 61.5 |
| 1976 | 42 | 61.5 |
| 1977 | 58 | 61.5 |
| 1978 | 50 | 61.5 |
| 1979 | 74 | 61.5 |
| 1980 | 42 | 64.7 |
| 1981 | 64 | 64.7 |
| 1982 | 66 | 64.7 |
| 1983 | 53 | 64.7 |
| 1984 | 61 | 64.7 |
| 1985 | 62 | 64.7 |
| 1986 | 78 | 64.7 |
| 1987 | 85 | 64.7 |
| 1988 | 78 | 64.7 |
| 1989 | 58 | 64.7 |
| 1990 | 76 | 69.5 |
| 1991 | 70 | 69.5 |
| 1992 | 78 | 69.5 |
| 1993 | 51 | 69.5 |
| 1994 | 92 | 69.5 |
| 1995 | 68 | 69.5 |
| 1996 | 63 | 69.5 |
| 1997 | 61 | 69.5 |
| 1998 | 80 | 69.5 |
| 1999 | 56 | 69.5 |
| 2000 | 50 | 65.8 |
| 2001 | 72 | 65.8 |
| 2002 | 67 | 65.8 |
| 2003 | 79 | 65.8 |
| 2004 | 60 | 65.8 |
| 2005 | 58 | 65.8 |
| 2006 | 70 | 65.8 |
| 2007 | 72 | 65.8 |
| 2008 | 55 | 65.8 |
| 2009 | 75 | 65.8 |
| 2010 | 55 | 63.6 |
| 2011 | 58 | 63.6 |
| 2012 | 62 | 63.6 |
| 2013 | 85 | 63.6 |
| 2014 | 58 | 63.6 |
| 2016 | 63 | 63.6 |
| 2017 | 70 | 63.6 |
| 2019 | 58 | 63.6 |
| 2020 | 53 | 75.4 |
| 2023 | 82 | 75.4 |
| 2024 | 78 | 75.4 |
| 2025 | 84 | 75.4 |
| 2026 | 80 | 75.4 |
| Year | First date | Last date |
|---|---|---|
| 1967 | 1967-05-22 | 1967-09-29 |
| 1968 | 1968-04-30 | 1968-09-11 |
| 1969 | 1969-04-23 | 1969-09-18 |
| 1970 | 1970-05-05 | 1970-09-03 |
| 1971 | 1971-05-02 | 1971-09-24 |
| 1972 | 1972-05-14 | 1972-09-17 |
| 1973 | 1973-05-14 | 1973-09-14 |
| 1974 | 1974-06-11 | 1974-09-26 |
| 1975 | 1975-05-15 | 1975-09-17 |
| 1976 | 1976-05-14 | 1976-09-21 |
| 1977 | 1977-04-24 | 1977-09-05 |
| 1978 | 1978-06-03 | 1978-09-27 |
| 1979 | 1979-05-23 | 1979-09-25 |
| 1980 | 1980-04-28 | 1980-09-18 |
| 1981 | 1981-05-01 | 1981-09-19 |
| 1982 | 1982-05-26 | 1982-09-26 |
| 1983 | 1983-05-24 | 1983-09-07 |
| 1984 | 1984-04-16 | 1984-09-19 |
| 1985 | 1985-05-17 | 1985-09-02 |
| 1986 | 1986-04-22 | 1986-09-08 |
| 1987 | 1987-04-27 | 1987-10-03 |
| 1988 | 1988-04-13 | 1988-10-03 |
| 1989 | 1989-05-07 | 1989-09-29 |
| 1990 | 1990-05-06 | 1990-10-01 |
| 1991 | 1991-06-11 | 1991-10-01 |
| 1992 | 1992-04-03 | 1992-10-02 |
| 1993 | 1993-05-11 | 1993-10-05 |
| 1994 | 1994-04-18 | 1994-09-28 |
| 1995 | 1995-05-25 | 1995-09-25 |
| 1996 | 1996-04-08 | 1996-09-13 |
| 1997 | 1997-05-12 | 1997-09-30 |
| 1998 | 1998-04-27 | 1998-09-18 |
| 1999 | 1999-05-24 | 1999-09-24 |
| 2000 | 2000-06-05 | 2000-09-15 |
| 2001 | 2001-05-23 | 2001-10-02 |
| 2002 | 2002-05-14 | 2002-09-21 |
| 2003 | 2003-05-24 | 2003-10-02 |
| 2004 | 2004-06-05 | 2004-09-26 |
| 2005 | 2005-05-27 | 2005-09-09 |
| 2006 | 2006-05-15 | 2006-09-13 |
| 2007 | 2007-05-09 | 2007-09-14 |
| 2008 | 2008-05-17 | 2008-10-02 |
| 2009 | 2009-05-18 | 2009-09-27 |
| 2010 | 2010-05-17 | 2010-10-03 |
| 2011 | 2011-06-23 | 2011-10-02 |
| 2012 | 2012-04-24 | 2012-09-20 |
| 2013 | 2013-05-07 | 2013-09-22 |
| 2014 | 2014-06-03 | 2014-09-22 |
| 2016 | 2016-04-20 | 2016-09-28 |
| 2017 | 2017-05-05 | 2017-09-12 |
| 2019 | 2019-05-11 | 2019-09-16 |
| 2020 | 2020-05-28 | 2020-09-12 |
| 2023 | 2023-04-30 | 2023-09-17 |
| 2024 | 2024-05-11 | 2024-09-28 |
| 2025 | 2025-05-02 | 2025-09-29 |
| 2026 | 2026-05-03 | 2026-10-05 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 56 | 93 | 1967 | 80 |
| 35 C (95 F): Days | 56 | 48 | 1998 | 28 |
| 40 C (104 F): Days | 35 | 10 | 1967 | 3 |
| 90 F (32.2 C): Days | 56 | 72 | 1994 | 59 |
| 100 F (37.8 C): Days | 55 | 26 | 1998 | 7 |
| 110 F (43.3 C): Days | 2 | 1 | 1967 | 1 |
| 0 C (32 F): Ice days (max | 55 | 34 | 1985 | 4 |
| 0 C (32 F): Frost days (min | 55 | 147 | 1985 | 34 |
| -10 C (14 F): Days with min | 46 | 25 | 1972 | 3 |
| -20 C (-4 F): Days with min | 5 | 5 | 1979 | 2 |
| 20 C (68 F): Tropical nights (min | 22 | 4 | 1990 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 54 | 34 | 1995 | 7 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 41 | 5 | 2010 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 4 | 1 | 1977 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 23 | 7 | 1996 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 1 | 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 1967.
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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-14).