Onion Park Threshold Days by Year
10 fixed thresholds counted per year at Onion Park (USS0010C22S): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Onion Park Thresholds
- Onion Park: days with a maximum temperature at or below 0 C (32 F) in 25 years, most in 2022 with 125.
- Onion Park: nights with a minimum temperature at or below 0 C (32 F) in 25 years, most in 2005 with 259.
- Onion Park: nights with a minimum temperature at or below -10 C (14 F) in 25 years, most in 2008 with 118.
- Onion Park: nights with a minimum temperature at or below -20 C (-4 F) in 25 years, most in 2014 with 34.
- 10 fixed thresholds have at least one qualifying day at Onion Park.
Days at or above 30 C (86 F)
6 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 2002 | 3 | 3 |
| 2007 | 3 | 3 |
| 2018 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2026 | 1 | 1 |
| Year | First date | Last date |
|---|---|---|
| 2002 | 2002-07-12 | 2002-07-14 |
| 2007 | 2007-07-06 | 2007-07-23 |
| 2018 | 2018-08-10 | 2018-08-11 |
| 2021 | 2021-06-14 | 2021-06-14 |
| 2022 | 2022-09-03 | 2022-09-03 |
| 2026 | 2026-07-12 | 2026-07-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 6 | 3 | 2002 | 1 |
| 0 C (32 F): Ice days (max | 25 | 125 | 2022 | 56 |
| 0 C (32 F): Frost days (min | 25 | 259 | 2005 | 154 |
| -10 C (14 F): Days with min | 25 | 118 | 2008 | 41 |
| -20 C (-4 F): Days with min | 25 | 34 | 2014 | 8 |
| -30 C (-22 F): Days with min | 17 | 6 | 2014 | 2 |
| -40 C (-40 F): Days with min | 1 | 2 | 2024 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 25 | 40 | 2010 | 25 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 24 | 6 | 2023 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 5 | 2 | 2024 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2002.
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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-14).