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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Powell Threshold Days by Year (USC00236834)

5 fixed thresholds counted per year at Powell (USC00236834): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Powell Thresholds

  • Powell: days with 10 mm (0.39 in) or more of precipitation in 6 years, most in 2009 with 48.
  • Powell: days with 25 mm (0.98 in) or more of precipitation in 6 years, most in 2008 with 21.
  • Powell: days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 2008 with 10.
  • Powell: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 2008 with 1.
  • 5 fixed thresholds have at least one qualifying day at Powell.
6 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Powell Days per year at Powell with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 2009. 02040602003: 392004: 412005: 332008: 432009: 482010: 38200320042005200820092010
Days per year at Powell with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 2009.
Days with 10 mm (0.39 in) or more of precipitation per year at Powell
YearDaysDecade average
20033940.8
20044140.8
20053340.8
20084340.8
20094840.8
20103838
First to last qualifying date each year at Powell For each year, a bar from the first to the last day at Powell meeting 10 mm (0.39 in). 2003: 10 February 2003 to 27 December 20032004: 4 January 2004 to 7 December 20042005: 3 January 2005 to 15 November 20052008: 8 January 2008 to 28 December 20082009: 27 January 2009 to 25 December 20092010: 21 January 2010 to 29 December 2010200320042005200820092010JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Powell meeting 10 mm (0.39 in).
First to last qualifying date each year at Powell
YearFirst dateLast date
20032003-02-102003-12-27
20042004-01-042004-12-07
20052005-01-032005-11-15
20082008-01-082008-12-28
20092009-01-272009-12-25
20102010-01-212010-12-29

Every Fixed Threshold

Fixed thresholds at Powell
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain648200938
25 mm (0.98 in): Days with 25 mm or more rain621200813
50 mm (1.97 in): Days with 50 mm or more rain61020082
100 mm (3.94 in): Days with 100 mm or more rain2120081
10 cm (3.9 in): Days with 10 cm or more snowfall2220102

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2003.

Download the Data

  • Data for Powell 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).