Sontra Threshold Days by Year (GME00128962)
12 fixed thresholds counted per year at Sontra (GME00128962): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Sontra Thresholds
- Sontra: days with a maximum temperature at or below 0 C (32 F) in 59 years, most in 1963 with 64.
- Sontra: nights with a minimum temperature at or below 0 C (32 F) in 59 years, most in 1973 with 140.
- Sontra: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1981 with 32.
- Sontra: nights with a minimum temperature at or below -10 C (14 F) in 55 years, most in 1963 with 50.
- 12 fixed thresholds have at least one qualifying day at Sontra.
Days at or above 30 C (86 F)
49 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1961 | 1 | 3 |
| 1963 | 3 | 3 |
| 1964 | 7 | 3 |
| 1966 | 1 | 3 |
| 1967 | 2 | 3 |
| 1969 | 4 | 3 |
| 1971 | 4 | 5 |
| 1972 | 5 | 5 |
| 1973 | 5 | 5 |
| 1974 | 3 | 5 |
| 1975 | 4 | 5 |
| 1976 | 9 | 5 |
| 1982 | 5 | 2.6 |
| 1983 | 4 | 2.6 |
| 1984 | 2 | 2.6 |
| 1985 | 1 | 2.6 |
| 1986 | 2 | 2.6 |
| 1987 | 1 | 2.6 |
| 1989 | 3 | 2.6 |
| 1990 | 6 | 3.7 |
| 1997 | 2 | 3.7 |
| 1999 | 3 | 3.7 |
| 2000 | 4 | 7 |
| 2001 | 6 | 7 |
| 2002 | 5 | 7 |
| 2003 | 23 | 7 |
| 2004 | 2 | 7 |
| 2005 | 6 | 7 |
| 2006 | 13 | 7 |
| 2007 | 3 | 7 |
| 2008 | 7 | 7 |
| 2009 | 1 | 7 |
| 2010 | 10 | 10 |
| 2011 | 1 | 10 |
| 2012 | 5 | 10 |
| 2013 | 9 | 10 |
| 2014 | 4 | 10 |
| 2015 | 17 | 10 |
| 2016 | 10 | 10 |
| 2017 | 5 | 10 |
| 2018 | 23 | 10 |
| 2019 | 16 | 10 |
| 2020 | 8 | 9.6 |
| 2021 | 3 | 9.6 |
| 2022 | 12 | 9.6 |
| 2023 | 6 | 9.6 |
| 2024 | 8 | 9.6 |
| 2025 | 8 | 9.6 |
| 2026 | 22 | 9.6 |
| Year | First date | Last date |
|---|---|---|
| 1961 | 1961-07-02 | 1961-07-02 |
| 1963 | 1963-07-24 | 1963-08-03 |
| 1964 | 1964-07-15 | 1964-08-28 |
| 1966 | 1966-08-13 | 1966-08-13 |
| 1967 | 1967-07-14 | 1967-07-19 |
| 1969 | 1969-07-24 | 1969-07-29 |
| 1971 | 1971-07-27 | 1971-08-19 |
| 1972 | 1972-07-18 | 1972-07-22 |
| 1973 | 1973-06-27 | 1973-09-06 |
| 1974 | 1974-08-14 | 1974-08-16 |
| 1975 | 1975-07-14 | 1975-08-12 |
| 1976 | 1976-06-27 | 1976-07-17 |
| 1982 | 1982-06-03 | 1982-08-12 |
| 1983 | 1983-07-11 | 1983-07-31 |
| 1984 | 1984-07-10 | 1984-07-11 |
| 1985 | 1985-08-14 | 1985-08-14 |
| 1986 | 1986-07-03 | 1986-08-03 |
| 1987 | 1987-06-30 | 1987-06-30 |
| 1989 | 1989-07-07 | 1989-08-21 |
| 1990 | 1990-07-28 | 1990-08-12 |
| 1997 | 1997-08-24 | 1997-08-25 |
| 1999 | 1999-07-03 | 1999-07-19 |
| 2000 | 2000-06-10 | 2000-06-21 |
| 2001 | 2001-07-28 | 2001-08-26 |
| 2002 | 2002-06-18 | 2002-07-31 |
| 2003 | 2003-05-05 | 2003-08-13 |
| 2004 | 2004-06-09 | 2004-08-06 |
| 2005 | 2005-05-27 | 2005-09-08 |
| 2006 | 2006-06-13 | 2006-07-27 |
| 2007 | 2007-06-09 | 2007-07-16 |
| 2008 | 2008-07-02 | 2008-08-07 |
| 2009 | 2009-08-20 | 2009-08-20 |
| 2010 | 2010-07-02 | 2010-07-21 |
| 2011 | 2011-08-26 | 2011-08-26 |
| 2012 | 2012-07-25 | 2012-08-21 |
| 2013 | 2013-06-18 | 2013-08-05 |
| 2014 | 2014-06-08 | 2014-07-19 |
| 2015 | 2015-06-05 | 2015-08-31 |
| 2016 | 2016-06-23 | 2016-09-13 |
| 2017 | 2017-05-28 | 2017-07-19 |
| 2018 | 2018-07-04 | 2018-09-18 |
| 2019 | 2019-06-03 | 2019-08-31 |
| 2020 | 2020-07-31 | 2020-08-21 |
| 2021 | 2021-06-17 | 2021-06-19 |
| 2022 | 2022-06-18 | 2022-08-26 |
| 2023 | 2023-06-22 | 2023-08-19 |
| 2024 | 2024-07-09 | 2024-09-05 |
| 2025 | 2025-06-14 | 2025-08-15 |
| 2026 | 2026-06-18 | 2026-08-15 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 49 | 23 | 2003 | 22 |
| 35 C (95 F): Days | 8 | 5 | 2003 | 5 |
| 90 F (32.2 C): Days | 35 | 13 | 2003 | 16 |
| 100 F (37.8 C): Days | 1 | 0 | n/a | 1 |
| 0 C (32 F): Ice days (max | 59 | 64 | 1963 | 11 |
| 0 C (32 F): Frost days (min | 59 | 140 | 1973 | 84 |
| -10 C (14 F): Days with min | 55 | 50 | 1963 | 3 |
| -20 C (-4 F): Days with min | 16 | 7 | 1963 | 4 |
| 20 C (68 F): Tropical nights (min | 1 | 1 | 2018 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 59 | 32 | 1981 | 11 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 50 | 6 | 2017 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 10 | 1 | 1961 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.
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).