Powell Idaho Threshold Days by Year
10 fixed thresholds counted per year at Powell Idaho (USR0000IPOW): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Powell Idaho Thresholds
- Powell Idaho: days with a maximum temperature at or above 30 C (86 F) in 18 years, most in 2009 with 66.
- Powell Idaho: days with a maximum temperature at or above 35 C (95 F) in 18 years, most in 2017 with 19.
- Powell Idaho: days with a maximum temperature at or above 90 F (32.2 C) in 18 years, most in 2017 with 45.
- Powell Idaho: days with a maximum temperature at or below 0 C (32 F) in 18 years, most in 2022 with 40.
- 10 fixed thresholds have at least one qualifying day at Powell Idaho.
Days at or above 30 C (86 F)
18 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 2008 | 53 | 59.5 |
| 2009 | 66 | 59.5 |
| 2010 | 44 | 48.3 |
| 2011 | 57 | 48.3 |
| 2012 | 50 | 48.3 |
| 2013 | 66 | 48.3 |
| 2014 | 50 | 48.3 |
| 2015 | 46 | 48.3 |
| 2016 | 37 | 48.3 |
| 2017 | 66 | 48.3 |
| 2018 | 34 | 48.3 |
| 2019 | 33 | 48.3 |
| 2020 | 39 | 48.7 |
| 2021 | 52 | 48.7 |
| 2022 | 59 | 48.7 |
| 2023 | 38 | 48.7 |
| 2024 | 47 | 48.7 |
| 2025 | 57 | 48.7 |
| Year | First date | Last date |
|---|---|---|
| 2008 | 2008-05-16 | 2008-10-01 |
| 2009 | 2009-05-17 | 2009-09-28 |
| 2010 | 2010-04-20 | 2010-10-02 |
| 2011 | 2011-06-05 | 2011-09-30 |
| 2012 | 2012-04-22 | 2012-09-08 |
| 2013 | 2013-05-12 | 2013-09-15 |
| 2014 | 2014-07-01 | 2014-09-24 |
| 2015 | 2015-06-07 | 2015-09-30 |
| 2016 | 2016-06-04 | 2016-09-28 |
| 2017 | 2017-05-29 | 2017-09-12 |
| 2018 | 2018-07-05 | 2018-09-06 |
| 2019 | 2019-06-02 | 2019-09-15 |
| 2020 | 2020-05-30 | 2020-09-12 |
| 2021 | 2021-06-01 | 2021-09-07 |
| 2022 | 2022-06-17 | 2022-09-28 |
| 2023 | 2023-05-01 | 2023-09-16 |
| 2024 | 2024-06-09 | 2024-09-28 |
| 2025 | 2025-05-25 | 2025-09-28 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 18 | 66 | 2009 | 57 |
| 35 C (95 F): Days | 18 | 19 | 2017 | 10 |
| 40 C (104 F): Days | 1 | 1 | 2018 | 1 |
| 90 F (32.2 C): Days | 18 | 45 | 2017 | 27 |
| 100 F (37.8 C): Days | 12 | 5 | 2008 | 1 |
| 0 C (32 F): Ice days (max | 18 | 40 | 2022 | 25 |
| 0 C (32 F): Frost days (min | 18 | 219 | 2008 | 184 |
| -10 C (14 F): Days with min | 18 | 51 | 2019 | 19 |
| -20 C (-4 F): Days with min | 12 | 6 | 2008 | 1 |
| -30 C (-22 F): Days with min | 1 | 1 | 2024 | 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).