Dorset Threshold Days by Year (USC00332251)
16 fixed thresholds counted per year at Dorset (USC00332251): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Dorset Thresholds
- Dorset: days with a maximum temperature at or above 30 C (86 F) in 61 years, most in 1991 with 43.
- Dorset: days with a maximum temperature at or below 0 C (32 F) in 61 years, most in 1960 with 76.
- Dorset: nights with a minimum temperature at or below 0 C (32 F) in 61 years, most in 1980 with 180.
- Dorset: nights with a minimum temperature at or below -10 C (14 F) in 61 years, most in 1978 with 61.
- 16 fixed thresholds have at least one qualifying day at Dorset.
Days at or above 30 C (86 F)
61 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1957 | 19 | 18 |
| 1958 | 4 | 18 |
| 1959 | 31 | 18 |
| 1960 | 15 | 20.1 |
| 1961 | 20 | 20.1 |
| 1962 | 21 | 20.1 |
| 1963 | 19 | 20.1 |
| 1964 | 32 | 20.1 |
| 1965 | 19 | 20.1 |
| 1966 | 25 | 20.1 |
| 1967 | 12 | 20.1 |
| 1968 | 26 | 20.1 |
| 1969 | 12 | 20.1 |
| 1970 | 12 | 16.9 |
| 1971 | 24 | 16.9 |
| 1972 | 11 | 16.9 |
| 1973 | 22 | 16.9 |
| 1974 | 8 | 16.9 |
| 1975 | 11 | 16.9 |
| 1976 | 13 | 16.9 |
| 1977 | 21 | 16.9 |
| 1978 | 28 | 16.9 |
| 1979 | 19 | 16.9 |
| 1980 | 23 | 22.3 |
| 1981 | 9 | 22.3 |
| 1982 | 15 | 22.3 |
| 1983 | 37 | 22.3 |
| 1984 | 14 | 22.3 |
| 1985 | 38 | 22.3 |
| 1986 | 11 | 22.3 |
| 1987 | 29 | 22.3 |
| 1988 | 37 | 22.3 |
| 1989 | 10 | 22.3 |
| 1990 | 5 | 18.5 |
| 1991 | 43 | 18.5 |
| 1992 | 4 | 18.5 |
| 1993 | 17 | 18.5 |
| 1994 | 14 | 18.5 |
| 1995 | 24 | 18.5 |
| 1996 | 8 | 18.5 |
| 1997 | 13 | 18.5 |
| 1998 | 28 | 18.5 |
| 1999 | 29 | 18.5 |
| 2000 | 7 | 19.7 |
| 2001 | 24 | 19.7 |
| 2002 | 43 | 19.7 |
| 2003 | 12 | 19.7 |
| 2004 | 5 | 19.7 |
| 2005 | 37 | 19.7 |
| 2006 | 17 | 19.7 |
| 2007 | 30 | 19.7 |
| 2008 | 15 | 19.7 |
| 2009 | 7 | 19.7 |
| 2010 | 28 | 20.9 |
| 2011 | 29 | 20.9 |
| 2012 | 37 | 20.9 |
| 2013 | 17 | 20.9 |
| 2014 | 7 | 20.9 |
| 2015 | 16 | 20.9 |
| 2016 | 27 | 20.9 |
| 2017 | 6 | 20.9 |
| Year | First date | Last date |
|---|---|---|
| 1957 | 1957-06-14 | 1957-09-03 |
| 1958 | 1958-06-06 | 1958-07-28 |
| 1959 | 1959-05-07 | 1959-09-29 |
| 1960 | 1960-06-05 | 1960-09-09 |
| 1961 | 1961-06-13 | 1961-09-25 |
| 1962 | 1962-05-17 | 1962-09-14 |
| 1963 | 1963-06-11 | 1963-07-29 |
| 1964 | 1964-05-24 | 1964-09-11 |
| 1965 | 1965-05-10 | 1965-09-22 |
| 1966 | 1966-06-14 | 1966-08-30 |
| 1967 | 1967-05-28 | 1967-07-24 |
| 1968 | 1968-06-08 | 1968-09-05 |
| 1969 | 1969-05-30 | 1969-08-31 |
| 1970 | 1970-06-11 | 1970-08-31 |
| 1971 | 1971-06-07 | 1971-09-11 |
| 1972 | 1972-07-12 | 1972-08-25 |
| 1973 | 1973-06-11 | 1973-09-06 |
| 1974 | 1974-06-10 | 1974-08-21 |
| 1975 | 1975-06-19 | 1975-08-14 |
| 1976 | 1976-04-19 | 1976-09-10 |
| 1977 | 1977-05-18 | 1977-09-02 |
| 1978 | 1978-05-28 | 1978-09-22 |
| 1979 | 1979-05-09 | 1979-09-02 |
| 1980 | 1980-06-24 | 1980-09-22 |
| 1981 | 1981-06-15 | 1981-07-19 |
| 1982 | 1982-05-19 | 1982-09-14 |
| 1983 | 1983-06-12 | 1983-09-20 |
| 1984 | 1984-06-09 | 1984-08-17 |
| 1985 | 1985-04-23 | 1985-09-10 |
| 1986 | 1986-04-29 | 1986-09-30 |
| 1987 | 1987-05-28 | 1987-09-18 |
| 1988 | 1988-05-31 | 1988-08-18 |
| 1989 | 1989-06-25 | 1989-08-06 |
| 1990 | 1990-04-28 | 1990-08-29 |
| 1991 | 1991-05-14 | 1991-09-17 |
| 1992 | 1992-06-18 | 1992-08-27 |
| 1993 | 1993-06-19 | 1993-08-31 |
| 1994 | 1994-06-15 | 1994-07-22 |
| 1995 | 1995-06-19 | 1995-09-07 |
| 1996 | 1996-05-19 | 1996-08-08 |
| 1997 | 1997-06-21 | 1997-08-10 |
| 1998 | 1998-05-16 | 1998-09-27 |
| 1999 | 1999-05-31 | 1999-09-13 |
| 2000 | 2000-06-11 | 2000-09-03 |
| 2001 | 2001-06-14 | 2001-09-08 |
| 2002 | 2002-04-17 | 2002-09-11 |
| 2003 | 2003-06-25 | 2003-08-26 |
| 2004 | 2004-06-09 | 2004-08-03 |
| 2005 | 2005-06-06 | 2005-08-21 |
| 2006 | 2006-05-30 | 2006-08-03 |
| 2007 | 2007-05-16 | 2007-10-09 |
| 2008 | 2008-06-07 | 2008-09-05 |
| 2009 | 2009-04-27 | 2009-08-18 |
| 2010 | 2010-05-31 | 2010-09-25 |
| 2011 | 2011-05-30 | 2011-09-04 |
| 2012 | 2012-05-04 | 2012-09-05 |
| 2013 | 2013-05-21 | 2013-09-12 |
| 2014 | 2014-05-14 | 2014-09-06 |
| 2015 | 2015-05-09 | 2015-09-09 |
| 2016 | 2016-05-29 | 2016-09-11 |
| 2017 | 2017-06-14 | 2017-09-27 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 61 | 43 | 1991 | 6 |
| 35 C (95 F): Days | 10 | 6 | 1988 | 2 |
| 90 F (32.2 C): Days | 48 | 22 | 1988 | 1 |
| 100 F (37.8 C): Days | 1 | 1 | 1988 | 1 |
| 0 C (32 F): Ice days (max | 61 | 76 | 1960 | 45 |
| 0 C (32 F): Frost days (min | 61 | 180 | 1980 | 126 |
| -10 C (14 F): Days with min | 61 | 61 | 1978 | 27 |
| -20 C (-4 F): Days with min | 57 | 21 | 2015 | 1 |
| -30 C (-22 F): Days with min | 5 | 4 | 2015 | 4 |
| 20 C (68 F): Tropical nights (min | 57 | 17 | 2011 | 6 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 61 | 59 | 2011 | 50 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 61 | 17 | 2011 | 9 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 40 | 4 | 1987 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 1 | 1979 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 59 | 18 | 2016 | 9 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 15 | 2 | 1984 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.
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).