Avon Threshold Days by Year (USC00110356)
16 fixed thresholds counted per year at Avon (USC00110356): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Avon Thresholds
- Avon: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 1973 with 49.
- Avon: days with 25 mm (0.98 in) or more of precipitation in 67 years, most in 1999 with 19.
- Avon: days with 50 mm (1.97 in) or more of precipitation in 53 years, most in 1982 with 6.
- Avon: days with 10 cm (3.9 in) or more of snowfall in 48 years, most in 1987 with 5.
- 16 fixed thresholds have at least one qualifying day at Avon.
Days at or above 30 C (86 F)
13 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 2008 | 22 | 15 |
| 2009 | 8 | 15 |
| 2010 | 52 | 51 |
| 2012 | 62 | 51 |
| 2017 | 39 | 51 |
| 2018 | 51 | 51 |
| 2020 | 33 | 35.9 |
| 2021 | 38 | 35.9 |
| 2022 | 28 | 35.9 |
| 2023 | 39 | 35.9 |
| 2024 | 36 | 35.9 |
| 2025 | 42 | 35.9 |
| 2026 | 35 | 35.9 |
| Year | First date | Last date |
|---|---|---|
| 2008 | 2008-06-02 | 2008-09-03 |
| 2009 | 2009-06-20 | 2009-08-10 |
| 2010 | 2010-05-24 | 2010-10-10 |
| 2012 | 2012-04-02 | 2012-09-05 |
| 2017 | 2017-05-16 | 2017-09-27 |
| 2018 | 2018-05-02 | 2018-10-04 |
| 2020 | 2020-05-25 | 2020-09-07 |
| 2021 | 2021-05-02 | 2021-10-01 |
| 2022 | 2022-05-11 | 2022-09-21 |
| 2023 | 2023-05-25 | 2023-10-04 |
| 2024 | 2024-05-19 | 2024-10-13 |
| 2025 | 2025-05-16 | 2025-10-05 |
| 2026 | 2026-03-22 | 2026-09-18 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 13 | 62 | 2012 | 35 |
| 35 C (95 F): Days | 5 | 18 | 2012 | 1 |
| 90 F (32.2 C): Days | 13 | 46 | 2012 | 13 |
| 100 F (37.8 C): Days | 1 | 4 | 2012 | 4 |
| 0 C (32 F): Ice days (max | 13 | 67 | 2010 | 27 |
| 0 C (32 F): Frost days (min | 12 | 155 | 2022 | 71 |
| -10 C (14 F): Days with min | 12 | 57 | 2022 | 28 |
| -20 C (-4 F): Days with min | 10 | 12 | 2010 | 8 |
| -30 C (-22 F): Days with min | 1 | 1 | 2009 | 1 |
| 20 C (68 F): Tropical nights (min | 12 | 40 | 2010 | 24 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 67 | 49 | 1973 | 9 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 67 | 19 | 1999 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 53 | 6 | 1982 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 11 | 2 | 1961 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 48 | 5 | 1987 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 4 | 1 | 1973 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2008.
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 (2026-10-12).