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Built 2026-10-18 (18 October 2026)

First Butte Washington Threshold Days by Year

9 fixed thresholds counted per year at First Butte Washington (USR0000WFIR): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for First Butte Washington Thresholds

  • First Butte Washington: days with a maximum temperature at or below 0 C (32 F) in 26 years, most in 1986 with 85.
  • First Butte Washington: nights with a minimum temperature at or below 0 C (32 F) in 26 years, most in 1986 with 205.
  • First Butte Washington: nights with a minimum temperature at or below -10 C (14 F) in 26 years, most in 1989 with 44.
  • First Butte Washington: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 2003 with 18.
  • 9 fixed thresholds have at least one qualifying day at First Butte Washington.
23 years with a qualifying day
Days at or above 30 C (86 F) per year at First Butte Washington Days per year at First Butte Washington with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 2003. 051015201991: 11992: 81997: 41998: 172003: 182004: 172005: 132006: 142007: 42010: 12011: 32013: 22014: 62015: 122016: 22017: 72018: 72019: 22020: 42023: 42024: 62025: 72026: 219911998200520102014201720202025
Days per year at First Butte Washington with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 2003.
Days at or above 30 C (86 F) per year at First Butte Washington
YearDaysDecade average
199117.5
199287.5
199747.5
1998177.5
20031813.2
20041713.2
20051313.2
20061413.2
2007413.2
201014.7
201134.7
201324.7
201464.7
2015124.7
201624.7
201774.7
201874.7
201924.7
202044.6
202344.6
202464.6
202574.6
202624.6
First to last qualifying date each year at First Butte Washington For each year, a bar from the first to the last day at First Butte Washington meeting 30 C (86 F). 1991: 21 August 1991 to 21 August 19911992: 23 June 1992 to 18 August 19921997: 4 August 1997 to 14 August 19971998: 22 July 1998 to 6 September 19982003: 10 July 2003 to 3 September 20032004: 23 June 2004 to 20 August 20042005: 21 June 2005 to 21 August 20052006: 27 June 2006 to 6 September 20062007: 5 July 2007 to 2 August 20072010: 16 August 2010 to 16 August 20102011: 28 August 2011 to 11 September 20112013: 2 July 2013 to 24 July 20132014: 13 July 2014 to 5 August 20142015: 26 June 2015 to 13 August 20152016: 6 June 2016 to 29 July 20162017: 7 July 2017 to 3 September 20172018: 13 July 2018 to 10 August 20182019: 6 August 2019 to 7 August 20192020: 30 July 2020 to 18 August 20202023: 14 August 2023 to 17 August 20232024: 9 July 2024 to 3 August 20242025: 9 June 2025 to 3 September 20252026: 22 July 2026 to 23 July 202619911998200520102014201720202025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at First Butte Washington meeting 30 C (86 F).
First to last qualifying date each year at First Butte Washington
YearFirst dateLast date
19911991-08-211991-08-21
19921992-06-231992-08-18
19971997-08-041997-08-14
19981998-07-221998-09-06
20032003-07-102003-09-03
20042004-06-232004-08-20
20052005-06-212005-08-21
20062006-06-272006-09-06
20072007-07-052007-08-02
20102010-08-162010-08-16
20112011-08-282011-09-11
20132013-07-022013-07-24
20142014-07-132014-08-05
20152015-06-262015-08-13
20162016-06-062016-07-29
20172017-07-072017-09-03
20182018-07-132018-08-10
20192019-08-062019-08-07
20202020-07-302020-08-18
20232023-08-142023-08-17
20242024-07-092024-08-03
20252025-06-092025-09-03
20262026-07-222026-07-23

Every Fixed Threshold

Fixed thresholds at First Butte Washington
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days231820032
35 C (95 F): Days2220062
90 F (32.2 C): Days15820031
0 C (32 F): Ice days (max2685198627
0 C (32 F): Frost days (min26205198694
-10 C (14 F): Days with min264419898
-20 C (-4 F): Days with min8419893
-30 C (-22 F): Days with min1119891
20 C (68 F): Tropical nights (min13720251

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1991.

Download the Data

  • Data for First Butte Washington 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-16).