Silverton Threshold Days by Year (USC00357823)
14 fixed thresholds counted per year at Silverton (USC00357823): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Silverton Thresholds
- Silverton: days with 10 mm (0.39 in) or more of precipitation in 63 years, most in 1996 with 69.
- Silverton: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 1996 with 19.
- Silverton: days with a maximum temperature at or above 30 C (86 F) in 60 years, most in 1967 with 39.
- Silverton: days with a maximum temperature at or above 90 F (32.2 C) in 60 years, most in 1967 with 21.
- 14 fixed thresholds have at least one qualifying day at Silverton.
Days at or above 30 C (86 F)
60 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1963 | 12 | 16.9 |
| 1964 | 11 | 16.9 |
| 1965 | 14 | 16.9 |
| 1966 | 13 | 16.9 |
| 1967 | 39 | 16.9 |
| 1968 | 15 | 16.9 |
| 1969 | 14 | 16.9 |
| 1970 | 25 | 20.9 |
| 1971 | 14 | 20.9 |
| 1972 | 29 | 20.9 |
| 1973 | 21 | 20.9 |
| 1974 | 30 | 20.9 |
| 1975 | 18 | 20.9 |
| 1976 | 10 | 20.9 |
| 1977 | 21 | 20.9 |
| 1978 | 21 | 20.9 |
| 1979 | 20 | 20.9 |
| 1980 | 16 | 18.7 |
| 1981 | 21 | 18.7 |
| 1982 | 21 | 18.7 |
| 1983 | 7 | 18.7 |
| 1984 | 12 | 18.7 |
| 1985 | 21 | 18.7 |
| 1986 | 26 | 18.7 |
| 1987 | 30 | 18.7 |
| 1988 | 21 | 18.7 |
| 1989 | 12 | 18.7 |
| 1991 | 20 | 17.4 |
| 1992 | 28 | 17.4 |
| 1993 | 14 | 17.4 |
| 1994 | 16 | 17.4 |
| 1995 | 14 | 17.4 |
| 1996 | 22 | 17.4 |
| 1997 | 14 | 17.4 |
| 1998 | 17 | 17.4 |
| 1999 | 12 | 17.4 |
| 2000 | 14 | 19.4 |
| 2001 | 9 | 19.4 |
| 2002 | 16 | 19.4 |
| 2003 | 30 | 19.4 |
| 2004 | 20 | 19.4 |
| 2005 | 20 | 19.4 |
| 2006 | 26 | 19.4 |
| 2007 | 14 | 19.4 |
| 2008 | 20 | 19.4 |
| 2009 | 25 | 19.4 |
| 2010 | 15 | 22.3 |
| 2011 | 14 | 22.3 |
| 2012 | 14 | 22.3 |
| 2013 | 18 | 22.3 |
| 2014 | 33 | 22.3 |
| 2015 | 32 | 22.3 |
| 2016 | 18 | 22.3 |
| 2017 | 34 | 22.3 |
| 2018 | 32 | 22.3 |
| 2019 | 13 | 22.3 |
| 2020 | 20 | 28.5 |
| 2023 | 30 | 28.5 |
| 2024 | 31 | 28.5 |
| 2025 | 33 | 28.5 |
| Year | First date | Last date |
|---|---|---|
| 1963 | 1963-05-20 | 1963-09-28 |
| 1964 | 1964-07-12 | 1964-08-25 |
| 1965 | 1965-07-01 | 1965-09-01 |
| 1966 | 1966-06-16 | 1966-09-06 |
| 1967 | 1967-06-17 | 1967-09-28 |
| 1968 | 1968-06-26 | 1968-09-06 |
| 1969 | 1969-05-08 | 1969-09-11 |
| 1970 | 1970-06-01 | 1970-10-03 |
| 1971 | 1971-05-12 | 1971-08-13 |
| 1972 | 1972-05-28 | 1972-09-04 |
| 1973 | 1973-05-14 | 1973-09-11 |
| 1974 | 1974-06-18 | 1974-09-26 |
| 1975 | 1975-06-02 | 1975-10-01 |
| 1976 | 1976-06-19 | 1976-10-08 |
| 1977 | 1977-07-01 | 1977-08-18 |
| 1978 | 1978-06-03 | 1978-08-10 |
| 1979 | 1979-06-02 | 1979-10-10 |
| 1980 | 1980-07-21 | 1980-10-06 |
| 1981 | 1981-07-03 | 1981-09-16 |
| 1982 | 1982-06-11 | 1982-09-03 |
| 1983 | 1983-05-24 | 1983-08-14 |
| 1984 | 1984-07-05 | 1984-08-27 |
| 1985 | 1985-06-18 | 1985-08-27 |
| 1986 | 1986-05-31 | 1986-09-07 |
| 1987 | 1987-04-27 | 1987-10-07 |
| 1988 | 1988-05-22 | 1988-10-02 |
| 1989 | 1989-06-05 | 1989-09-29 |
| 1991 | 1991-07-03 | 1991-09-26 |
| 1992 | 1992-05-03 | 1992-08-28 |
| 1993 | 1993-08-02 | 1993-09-27 |
| 1994 | 1994-07-08 | 1994-09-24 |
| 1995 | 1995-05-30 | 1995-09-21 |
| 1996 | 1996-07-08 | 1996-08-30 |
| 1997 | 1997-05-12 | 1997-09-25 |
| 1998 | 1998-07-17 | 1998-09-04 |
| 1999 | 1999-05-24 | 1999-09-21 |
| 2000 | 2000-06-26 | 2000-08-24 |
| 2001 | 2001-05-23 | 2001-08-13 |
| 2002 | 2002-06-13 | 2002-08-29 |
| 2003 | 2003-06-05 | 2003-09-28 |
| 2004 | 2004-06-18 | 2004-08-21 |
| 2005 | 2005-05-26 | 2005-08-27 |
| 2006 | 2006-06-25 | 2006-09-03 |
| 2007 | 2007-05-30 | 2007-09-11 |
| 2008 | 2008-05-17 | 2008-09-30 |
| 2009 | 2009-06-04 | 2009-09-23 |
| 2010 | 2010-07-08 | 2010-09-04 |
| 2011 | 2011-07-25 | 2011-09-12 |
| 2012 | 2012-07-09 | 2012-09-14 |
| 2013 | 2013-06-29 | 2013-09-12 |
| 2014 | 2014-05-01 | 2014-09-21 |
| 2015 | 2015-06-07 | 2015-09-13 |
| 2016 | 2016-06-05 | 2016-08-27 |
| 2017 | 2017-05-23 | 2017-09-13 |
| 2018 | 2018-06-18 | 2018-08-29 |
| 2019 | 2019-06-12 | 2019-09-06 |
| 2020 | 2020-05-10 | 2020-09-08 |
| 2023 | 2023-04-28 | 2023-10-06 |
| 2024 | 2024-05-10 | 2024-09-24 |
| 2025 | 2025-06-07 | 2025-09-04 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 60 | 39 | 1967 | 33 |
| 35 C (95 F): Days | 47 | 10 | 1981 | 7 |
| 40 C (104 F): Days | 2 | 3 | 1981 | 3 |
| 90 F (32.2 C): Days | 60 | 21 | 1967 | 14 |
| 100 F (37.8 C): Days | 21 | 4 | 1981 | 1 |
| 0 C (32 F): Ice days (max | 39 | 14 | 2013 | 5 |
| 0 C (32 F): Frost days (min | 60 | 78 | 1985 | 34 |
| -10 C (14 F): Days with min | 19 | 8 | 1974 | 1 |
| 20 C (68 F): Tropical nights (min | 14 | 3 | 1977 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 63 | 69 | 1996 | 17 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 62 | 19 | 1996 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 29 | 3 | 2012 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 13 | 2 | 1971 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 1 | 1969 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.
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 (2025-12-31).