Built 2026-10-16 (16 October 2026)

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.
18 years with a qualifying day
Days at or above 30 C (86 F) per year at Powell Idaho Days per year at Powell Idaho with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 66 in 2009. 0204060802008: 532009: 662010: 442011: 572012: 502013: 662014: 502015: 462016: 372017: 662018: 342019: 332020: 392021: 522022: 592023: 382024: 472025: 57200820102012201420162018202020222024
Days per year at Powell Idaho with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 66 in 2009.
Days at or above 30 C (86 F) per year at Powell Idaho
YearDaysDecade average
20085359.5
20096659.5
20104448.3
20115748.3
20125048.3
20136648.3
20145048.3
20154648.3
20163748.3
20176648.3
20183448.3
20193348.3
20203948.7
20215248.7
20225948.7
20233848.7
20244748.7
20255748.7
First to last qualifying date each year at Powell Idaho For each year, a bar from the first to the last day at Powell Idaho meeting 30 C (86 F). 2008: 16 May 2008 to 1 October 20082009: 17 May 2009 to 28 September 20092010: 20 April 2010 to 2 October 20102011: 5 June 2011 to 30 September 20112012: 22 April 2012 to 8 September 20122013: 12 May 2013 to 15 September 20132014: 1 July 2014 to 24 September 20142015: 7 June 2015 to 30 September 20152016: 4 June 2016 to 28 September 20162017: 29 May 2017 to 12 September 20172018: 5 July 2018 to 6 September 20182019: 2 June 2019 to 15 September 20192020: 30 May 2020 to 12 September 20202021: 1 June 2021 to 7 September 20212022: 17 June 2022 to 28 September 20222023: 1 May 2023 to 16 September 20232024: 9 June 2024 to 28 September 20242025: 25 May 2025 to 28 September 2025200820112014201720202023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Powell Idaho meeting 30 C (86 F).
First to last qualifying date each year at Powell Idaho
YearFirst dateLast date
20082008-05-162008-10-01
20092009-05-172009-09-28
20102010-04-202010-10-02
20112011-06-052011-09-30
20122012-04-222012-09-08
20132013-05-122013-09-15
20142014-07-012014-09-24
20152015-06-072015-09-30
20162016-06-042016-09-28
20172017-05-292017-09-12
20182018-07-052018-09-06
20192019-06-022019-09-15
20202020-05-302020-09-12
20212021-06-012021-09-07
20222022-06-172022-09-28
20232023-05-012023-09-16
20242024-06-092024-09-28
20252025-05-252025-09-28

Every Fixed Threshold

Fixed thresholds at Powell Idaho
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1866200957
35 C (95 F): Days1819201710
40 C (104 F): Days1120181
90 F (32.2 C): Days1845201727
100 F (37.8 C): Days12520081
0 C (32 F): Ice days (max1840202225
0 C (32 F): Frost days (min182192008184
-10 C (14 F): Days with min1851201919
-20 C (-4 F): Days with min12620081
-30 C (-22 F): Days with min1120241

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

  • Data for Powell Idaho threshold days by year: CSV or JSON. Field meanings are on the data page.

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).