Silverton Threshold Days by Year
18 fixed thresholds counted per year at Silverton (USC00418323): 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 82 years, most in 2015 with 30.
- Silverton: days with 25 mm (0.98 in) or more of precipitation in 80 years, most in 2004 with 14.
- Silverton: days with a maximum temperature at or above 30 C (86 F) in 62 years, most in 2011 with 138.
- Silverton: days with a maximum temperature at or above 35 C (95 F) in 62 years, most in 2011 with 93.
- 18 fixed thresholds have at least one qualifying day at Silverton.
Days at or above 30 C (86 F)
62 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1962 | 113 | 98.2 |
| 1963 | 123 | 98.2 |
| 1967 | 88 | 98.2 |
| 1968 | 80 | 98.2 |
| 1969 | 87 | 98.2 |
| 1970 | 98 | 89.3 |
| 1971 | 81 | 89.3 |
| 1972 | 93 | 89.3 |
| 1973 | 86 | 89.3 |
| 1974 | 83 | 89.3 |
| 1975 | 88 | 89.3 |
| 1976 | 65 | 89.3 |
| 1977 | 109 | 89.3 |
| 1978 | 102 | 89.3 |
| 1979 | 88 | 89.3 |
| 1980 | 111 | 92.2 |
| 1981 | 95 | 92.2 |
| 1982 | 88 | 92.2 |
| 1983 | 103 | 92.2 |
| 1984 | 97 | 92.2 |
| 1985 | 99 | 92.2 |
| 1986 | 78 | 92.2 |
| 1987 | 74 | 92.2 |
| 1988 | 79 | 92.2 |
| 1989 | 98 | 92.2 |
| 1990 | 102 | 95.3 |
| 1991 | 90 | 95.3 |
| 1992 | 76 | 95.3 |
| 1993 | 104 | 95.3 |
| 1994 | 101 | 95.3 |
| 1995 | 92 | 95.3 |
| 1996 | 86 | 95.3 |
| 1997 | 85 | 95.3 |
| 1998 | 125 | 95.3 |
| 1999 | 92 | 95.3 |
| 2000 | 114 | 99 |
| 2001 | 99 | 99 |
| 2002 | 104 | 99 |
| 2003 | 101 | 99 |
| 2004 | 81 | 99 |
| 2005 | 112 | 99 |
| 2006 | 120 | 99 |
| 2007 | 77 | 99 |
| 2008 | 91 | 99 |
| 2009 | 91 | 99 |
| 2010 | 111 | 116.8 |
| 2011 | 138 | 116.8 |
| 2012 | 131 | 116.8 |
| 2013 | 125 | 116.8 |
| 2014 | 108 | 116.8 |
| 2015 | 107 | 116.8 |
| 2016 | 104 | 116.8 |
| 2017 | 102 | 116.8 |
| 2018 | 128 | 116.8 |
| 2019 | 114 | 116.8 |
| 2020 | 131 | 124.9 |
| 2021 | 109 | 124.9 |
| 2022 | 137 | 124.9 |
| 2023 | 115 | 124.9 |
| 2024 | 128 | 124.9 |
| 2025 | 113 | 124.9 |
| 2026 | 141 | 124.9 |
| Year | First date | Last date |
|---|---|---|
| 1962 | 1962-03-28 | 1962-10-14 |
| 1963 | 1963-02-01 | 1963-10-14 |
| 1967 | 1967-03-30 | 1967-10-13 |
| 1968 | 1968-05-02 | 1968-10-31 |
| 1969 | 1969-05-20 | 1969-10-03 |
| 1970 | 1970-04-27 | 1970-10-07 |
| 1971 | 1971-03-28 | 1971-09-28 |
| 1972 | 1972-03-15 | 1972-10-18 |
| 1973 | 1973-05-11 | 1973-10-22 |
| 1974 | 1974-03-31 | 1974-09-12 |
| 1975 | 1975-04-17 | 1975-10-22 |
| 1976 | 1976-03-26 | 1976-09-19 |
| 1977 | 1977-05-30 | 1977-10-18 |
| 1978 | 1978-04-01 | 1978-10-13 |
| 1979 | 1979-02-15 | 1979-10-27 |
| 1980 | 1980-05-11 | 1980-11-09 |
| 1981 | 1981-04-08 | 1981-10-05 |
| 1982 | 1982-04-12 | 1982-10-19 |
| 1983 | 1983-05-06 | 1983-10-07 |
| 1984 | 1984-05-07 | 1984-09-25 |
| 1985 | 1985-04-21 | 1985-10-08 |
| 1986 | 1986-04-01 | 1986-09-24 |
| 1987 | 1987-04-17 | 1987-10-09 |
| 1988 | 1988-05-07 | 1988-10-18 |
| 1989 | 1989-03-11 | 1989-10-16 |
| 1990 | 1990-04-24 | 1990-10-27 |
| 1991 | 1991-04-08 | 1991-10-18 |
| 1992 | 1992-04-24 | 1992-10-16 |
| 1993 | 1993-04-23 | 1993-10-13 |
| 1994 | 1994-03-18 | 1994-10-04 |
| 1995 | 1995-03-20 | 1995-10-23 |
| 1996 | 1996-02-23 | 1996-11-20 |
| 1997 | 1997-03-22 | 1997-10-05 |
| 1998 | 1998-03-26 | 1998-10-02 |
| 1999 | 1999-04-21 | 1999-10-16 |
| 2000 | 2000-04-06 | 2000-10-04 |
| 2001 | 2001-04-05 | 2001-10-23 |
| 2002 | 2002-03-14 | 2002-10-12 |
| 2003 | 2003-04-02 | 2003-10-30 |
| 2004 | 2004-03-20 | 2004-09-19 |
| 2005 | 2005-05-10 | 2005-11-04 |
| 2006 | 2006-03-01 | 2006-11-10 |
| 2007 | 2007-05-05 | 2007-10-21 |
| 2008 | 2008-04-17 | 2008-10-04 |
| 2009 | 2009-03-05 | 2009-10-20 |
| 2010 | 2010-03-31 | 2010-10-31 |
| 2011 | 2011-03-18 | 2011-10-26 |
| 2012 | 2012-03-16 | 2012-11-03 |
| 2013 | 2013-04-08 | 2013-10-05 |
| 2014 | 2014-04-03 | 2014-10-27 |
| 2015 | 2015-04-01 | 2015-10-16 |
| 2016 | 2016-04-26 | 2016-11-02 |
| 2017 | 2017-02-11 | 2017-10-15 |
| 2018 | 2018-03-23 | 2018-10-06 |
| 2019 | 2019-04-10 | 2019-10-01 |
| 2020 | 2020-03-27 | 2020-10-23 |
| 2021 | 2021-04-07 | 2021-10-27 |
| 2022 | 2022-03-29 | 2022-10-22 |
| 2023 | 2023-04-04 | 2023-11-08 |
| 2024 | 2024-05-01 | 2024-10-29 |
| 2025 | 2025-02-04 | 2025-11-05 |
| 2026 | 2026-03-19 | 2026-10-14 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 62 | 138 | 2011 | 141 |
| 35 C (95 F): Days | 62 | 93 | 2011 | 89 |
| 40 C (104 F): Days | 29 | 18 | 2011 | 17 |
| 90 F (32.2 C): Days | 62 | 121 | 2011 | 117 |
| 100 F (37.8 C): Days | 50 | 52 | 2011 | 47 |
| 110 F (43.3 C): Days | 2 | 2 | 2020 | 2 |
| 0 C (32 F): Ice days (max | 62 | 27 | 1978 | 3 |
| 0 C (32 F): Frost days (min | 62 | 135 | 1975 | 42 |
| -10 C (14 F): Days with min | 62 | 32 | 1978 | 7 |
| -20 C (-4 F): Days with min | 14 | 3 | 1963 | 2 |
| 20 C (68 F): Tropical nights (min | 62 | 75 | 2011 | 70 |
| 25 C (77 F): Days with min | 4 | 1 | 2003 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 82 | 30 | 2015 | 12 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 80 | 14 | 2004 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 43 | 5 | 2004 | 4 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 2 | 1956 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 32 | 4 | 1992 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 3 | 1 | 1953 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.
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).