Dunlow 1 SW Threshold Days by Year (USC00462522)
16 fixed thresholds counted per year at Dunlow 1 SW (USC00462522): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Dunlow 1 SW Thresholds
- Dunlow 1 SW: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 2020 with 63.
- Dunlow 1 SW: days with 25 mm (0.98 in) or more of precipitation in 51 years, most in 1989 with 19.
- Dunlow 1 SW: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 2018 with 67.
- Dunlow 1 SW: days with a maximum temperature at or below 0 C (32 F) in 50 years, most in 2010 with 46.
- 16 fixed thresholds have at least one qualifying day at Dunlow 1 SW.
Days at or above 30 C (86 F)
50 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1972 | 19 | 38.4 |
| 1973 | 47 | 38.4 |
| 1974 | 20 | 38.4 |
| 1975 | 51 | 38.4 |
| 1976 | 38 | 38.4 |
| 1977 | 48 | 38.4 |
| 1978 | 64 | 38.4 |
| 1979 | 20 | 38.4 |
| 1981 | 29 | 43.7 |
| 1983 | 56 | 43.7 |
| 1984 | 32 | 43.7 |
| 1986 | 50 | 43.7 |
| 1987 | 52 | 43.7 |
| 1988 | 61 | 43.7 |
| 1989 | 26 | 43.7 |
| 1990 | 24 | 22.5 |
| 1991 | 32 | 22.5 |
| 1992 | 7 | 22.5 |
| 1993 | 26 | 22.5 |
| 1994 | 18 | 22.5 |
| 1995 | 33 | 22.5 |
| 1996 | 7 | 22.5 |
| 1997 | 11 | 22.5 |
| 1998 | 19 | 22.5 |
| 1999 | 48 | 22.5 |
| 2000 | 15 | 29.4 |
| 2001 | 21 | 29.4 |
| 2002 | 43 | 29.4 |
| 2003 | 11 | 29.4 |
| 2004 | 5 | 29.4 |
| 2005 | 38 | 29.4 |
| 2006 | 29 | 29.4 |
| 2007 | 62 | 29.4 |
| 2008 | 41 | 29.4 |
| 2010 | 43 | 38 |
| 2011 | 37 | 38 |
| 2012 | 36 | 38 |
| 2013 | 13 | 38 |
| 2014 | 15 | 38 |
| 2015 | 34 | 38 |
| 2016 | 50 | 38 |
| 2017 | 19 | 38 |
| 2018 | 67 | 38 |
| 2019 | 66 | 38 |
| 2020 | 40 | 36.5 |
| 2021 | 35 | 36.5 |
| 2022 | 33 | 36.5 |
| 2023 | 22 | 36.5 |
| 2025 | 51 | 36.5 |
| 2026 | 38 | 36.5 |
| Year | First date | Last date |
|---|---|---|
| 1972 | 1972-05-25 | 1972-09-13 |
| 1973 | 1973-03-14 | 1973-09-27 |
| 1974 | 1974-04-01 | 1974-07-19 |
| 1975 | 1975-05-24 | 1975-10-14 |
| 1976 | 1976-04-17 | 1976-09-09 |
| 1977 | 1977-04-12 | 1977-09-05 |
| 1978 | 1978-04-10 | 1978-09-22 |
| 1979 | 1979-04-24 | 1979-08-28 |
| 1981 | 1981-05-31 | 1981-09-15 |
| 1983 | 1983-05-08 | 1983-09-20 |
| 1984 | 1984-04-27 | 1984-09-14 |
| 1986 | 1986-04-27 | 1986-09-30 |
| 1987 | 1987-04-23 | 1987-08-28 |
| 1988 | 1988-04-06 | 1988-09-24 |
| 1989 | 1989-03-29 | 1989-09-10 |
| 1990 | 1990-04-26 | 1990-09-07 |
| 1991 | 1991-05-26 | 1991-09-17 |
| 1992 | 1992-07-09 | 1992-07-15 |
| 1993 | 1993-06-09 | 1993-09-03 |
| 1994 | 1994-06-14 | 1994-08-14 |
| 1995 | 1995-06-11 | 1995-09-01 |
| 1996 | 1996-04-30 | 1996-08-08 |
| 1997 | 1997-06-25 | 1997-08-18 |
| 1998 | 1998-06-25 | 1998-09-21 |
| 1999 | 1999-06-06 | 1999-09-13 |
| 2000 | 2000-05-13 | 2000-08-10 |
| 2001 | 2001-04-09 | 2001-09-08 |
| 2002 | 2002-04-17 | 2002-09-21 |
| 2003 | 2003-07-05 | 2003-08-29 |
| 2004 | 2004-07-07 | 2004-08-29 |
| 2005 | 2005-06-06 | 2005-09-25 |
| 2006 | 2006-05-29 | 2006-08-29 |
| 2007 | 2007-05-01 | 2007-10-09 |
| 2008 | 2008-06-05 | 2008-09-15 |
| 2010 | 2010-04-03 | 2010-09-25 |
| 2011 | 2011-04-12 | 2011-09-05 |
| 2012 | 2012-05-27 | 2012-09-06 |
| 2013 | 2013-06-01 | 2013-09-12 |
| 2014 | 2014-05-13 | 2014-08-31 |
| 2015 | 2015-05-09 | 2015-09-09 |
| 2016 | 2016-04-21 | 2016-09-18 |
| 2017 | 2017-04-30 | 2017-08-23 |
| 2018 | 2018-04-15 | 2018-10-09 |
| 2019 | 2019-04-19 | 2019-10-04 |
| 2020 | 2020-03-29 | 2020-08-28 |
| 2021 | 2021-05-24 | 2021-08-30 |
| 2022 | 2022-04-24 | 2022-08-30 |
| 2023 | 2023-04-06 | 2023-09-07 |
| 2025 | 2025-04-03 | 2025-09-21 |
| 2026 | 2026-03-23 | 2026-08-31 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 50 | 67 | 2018 | 38 |
| 35 C (95 F): Days | 11 | 13 | 1988 | 1 |
| 90 F (32.2 C): Days | 44 | 37 | 1988 | 7 |
| 100 F (37.8 C): Days | 1 | 3 | 1988 | 3 |
| 0 C (32 F): Ice days (max | 50 | 46 | 2010 | 19 |
| 0 C (32 F): Frost days (min | 45 | 124 | 1986 | 54 |
| -10 C (14 F): Days with min | 45 | 33 | 1986 | 19 |
| -20 C (-4 F): Days with min | 11 | 4 | 1983 | 2 |
| 20 C (68 F): Tropical nights (min | 44 | 41 | 2016 | 35 |
| 25 C (77 F): Days with min | 1 | 1 | 1978 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 51 | 63 | 2020 | 24 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 51 | 19 | 1989 | 8 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 39 | 6 | 1978 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1973 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 30 | 3 | 1994 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 5 | 1 | 1987 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1972.
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 (2026-10-16).