Allerton Threshold Days by Year
19 fixed thresholds counted per year at Allerton (USC00130149): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Allerton Thresholds
- Allerton: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1911 with 85.
- Allerton: days with a maximum temperature at or above 90 F (32.2 C) in 41 years, most in 1913 with 60.
- Allerton: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 2014 with 61.
- Allerton: nights with a minimum temperature at or below 0 C (32 F) in 40 years, most in 2013 with 159.
- 19 fixed thresholds have at least one qualifying day at Allerton.
Days at or above 30 C (86 F)
41 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1903 | 29 | 43.1 |
| 1904 | 20 | 43.1 |
| 1905 | 45 | 43.1 |
| 1906 | 60 | 43.1 |
| 1907 | 36 | 43.1 |
| 1908 | 56 | 43.1 |
| 1909 | 56 | 43.1 |
| 1910 | 49 | 62.1 |
| 1911 | 85 | 62.1 |
| 1912 | 65 | 62.1 |
| 1913 | 82 | 62.1 |
| 1914 | 75 | 62.1 |
| 1915 | 25 | 62.1 |
| 1916 | 68 | 62.1 |
| 1918 | 48 | 62.1 |
| 1998 | 36 | 37 |
| 1999 | 38 | 37 |
| 2000 | 37 | 30 |
| 2001 | 31 | 30 |
| 2002 | 47 | 30 |
| 2003 | 37 | 30 |
| 2004 | 8 | 30 |
| 2005 | 45 | 30 |
| 2007 | 37 | 30 |
| 2008 | 14 | 30 |
| 2009 | 14 | 30 |
| 2011 | 41 | 41.8 |
| 2012 | 65 | 41.8 |
| 2013 | 35 | 41.8 |
| 2014 | 14 | 41.8 |
| 2015 | 31 | 41.8 |
| 2016 | 47 | 41.8 |
| 2017 | 52 | 41.8 |
| 2018 | 55 | 41.8 |
| 2019 | 36 | 41.8 |
| 2020 | 36 | 42.5 |
| 2022 | 51 | 42.5 |
| 2023 | 41 | 42.5 |
| 2024 | 44 | 42.5 |
| 2025 | 34 | 42.5 |
| 2026 | 49 | 42.5 |
| Year | First date | Last date |
|---|---|---|
| 1903 | 1903-06-29 | 1903-08-26 |
| 1904 | 1904-06-20 | 1904-09-10 |
| 1905 | 1905-06-04 | 1905-10-05 |
| 1906 | 1906-05-17 | 1906-09-18 |
| 1907 | 1907-03-21 | 1907-09-18 |
| 1908 | 1908-05-16 | 1908-10-17 |
| 1909 | 1909-05-05 | 1909-10-03 |
| 1910 | 1910-04-28 | 1910-10-16 |
| 1911 | 1911-05-09 | 1911-09-26 |
| 1912 | 1912-05-22 | 1912-10-06 |
| 1913 | 1913-05-28 | 1913-10-03 |
| 1914 | 1914-05-24 | 1914-09-19 |
| 1915 | 1915-04-28 | 1915-09-13 |
| 1916 | 1916-05-06 | 1916-10-08 |
| 1918 | 1918-06-04 | 1918-08-28 |
| 1998 | 1998-05-20 | 1998-09-27 |
| 1999 | 1999-06-06 | 1999-09-08 |
| 2000 | 2000-04-06 | 2000-09-19 |
| 2001 | 2001-06-12 | 2001-09-04 |
| 2002 | 2002-06-01 | 2002-10-02 |
| 2003 | 2003-05-31 | 2003-09-12 |
| 2004 | 2004-06-08 | 2004-08-27 |
| 2005 | 2005-06-22 | 2005-09-22 |
| 2007 | 2007-06-16 | 2007-08-29 |
| 2008 | 2008-07-08 | 2008-09-03 |
| 2009 | 2009-06-18 | 2009-08-14 |
| 2011 | 2011-04-04 | 2011-09-13 |
| 2012 | 2012-04-26 | 2012-09-13 |
| 2013 | 2013-05-15 | 2013-09-20 |
| 2014 | 2014-05-08 | 2014-09-05 |
| 2015 | 2015-06-08 | 2015-09-18 |
| 2016 | 2016-05-31 | 2016-10-18 |
| 2017 | 2017-05-16 | 2017-09-27 |
| 2018 | 2018-05-27 | 2018-10-04 |
| 2019 | 2019-05-17 | 2019-10-02 |
| 2020 | 2020-06-03 | 2020-09-07 |
| 2022 | 2022-05-10 | 2022-09-21 |
| 2023 | 2023-04-05 | 2023-10-03 |
| 2024 | 2024-06-13 | 2024-10-12 |
| 2025 | 2025-06-12 | 2025-10-04 |
| 2026 | 2026-03-22 | 2026-10-13 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 41 | 85 | 1911 | 49 |
| 35 C (95 F): Days | 32 | 39 | 1913 | 7 |
| 40 C (104 F): Days | 4 | 4 | 2012 | 4 |
| 90 F (32.2 C): Days | 41 | 60 | 1913 | 23 |
| 100 F (37.8 C): Days | 11 | 18 | 1913 | 1 |
| 0 C (32 F): Ice days (max | 41 | 61 | 2014 | 23 |
| 0 C (32 F): Frost days (min | 40 | 159 | 2013 | 63 |
| -10 C (14 F): Days with min | 40 | 64 | 2008 | 22 |
| -20 C (-4 F): Days with min | 38 | 21 | 1912 | 5 |
| -30 C (-22 F): Days with min | 3 | 2 | 1905 | 1 |
| 20 C (68 F): Tropical nights (min | 40 | 46 | 1913 | 35 |
| 25 C (77 F): Days with min | 6 | 2 | 1913 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 38 | 39 | 2001 | 24 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 38 | 18 | 2009 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 33 | 7 | 2014 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 5 | 2 | 1909 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1903 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 29 | 5 | 1918 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 3 | 1 | 1912 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1903.
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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-17).