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

Spokane WFO Threshold Days by Year (USC00457941)

14 fixed thresholds counted per year at Spokane WFO (USC00457941): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Spokane WFO Thresholds

  • Spokane WFO: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 2021 with 55.
  • Spokane WFO: days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 2021 with 42.
  • Spokane WFO: days with a maximum temperature at or below 0 C (32 F) in 29 years, most in 2017 with 56.
  • Spokane WFO: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 2008 with 183.
  • 14 fixed thresholds have at least one qualifying day at Spokane WFO.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Spokane WFO Days per year at Spokane WFO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 2021. 02040601997: 221998: 491999: 362000: 302001: 462002: 362003: 522004: 382005: 282006: 422007: 342008: 272009: 362010: 232011: 282012: 292013: 442014: 372015: 462016: 292017: 492018: 342019: 242020: 312021: 552022: 492023: 402024: 462025: 521997200020032006200920122015201820212024
Days per year at Spokane WFO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 2021.
Days at or above 30 C (86 F) per year at Spokane WFO
YearDaysDecade average
19972235.7
19984935.7
19993635.7
20003036.9
20014636.9
20023636.9
20035236.9
20043836.9
20052836.9
20064236.9
20073436.9
20082736.9
20093636.9
20102334.3
20112834.3
20122934.3
20134434.3
20143734.3
20154634.3
20162934.3
20174934.3
20183434.3
20192434.3
20203145.5
20215545.5
20224945.5
20234045.5
20244645.5
20255245.5
First to last qualifying date each year at Spokane WFO For each year, a bar from the first to the last day at Spokane WFO meeting 30 C (86 F). 1997: 5 July 1997 to 25 September 19971998: 30 June 1998 to 16 September 19981999: 24 May 1999 to 22 September 19992000: 28 June 2000 to 14 September 20002001: 22 May 2001 to 24 September 20012002: 14 June 2002 to 14 September 20022003: 24 May 2003 to 6 September 20032004: 21 June 2004 to 31 August 20042005: 28 May 2005 to 28 August 20052006: 15 May 2006 to 8 September 20062007: 2 June 2007 to 11 September 20072008: 17 May 2008 to 19 September 20082009: 2 July 2009 to 23 September 20092010: 8 July 2010 to 26 August 20102011: 6 July 2011 to 24 September 20112012: 7 July 2012 to 26 August 20122013: 28 June 2013 to 15 September 20132014: 2 July 2014 to 21 September 20142015: 7 June 2015 to 13 September 20152016: 4 June 2016 to 30 August 20162017: 30 May 2017 to 12 September 20172018: 5 July 2018 to 22 August 20182019: 13 June 2019 to 3 September 20192020: 11 July 2020 to 11 September 20202021: 1 June 2021 to 9 September 20212022: 27 June 2022 to 27 September 20222023: 20 May 2023 to 16 September 20232024: 22 June 2024 to 25 September 20242025: 28 May 2025 to 19 September 202519972001200520092013201720212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Spokane WFO meeting 30 C (86 F).
First to last qualifying date each year at Spokane WFO
YearFirst dateLast date
19971997-07-051997-09-25
19981998-06-301998-09-16
19991999-05-241999-09-22
20002000-06-282000-09-14
20012001-05-222001-09-24
20022002-06-142002-09-14
20032003-05-242003-09-06
20042004-06-212004-08-31
20052005-05-282005-08-28
20062006-05-152006-09-08
20072007-06-022007-09-11
20082008-05-172008-09-19
20092009-07-022009-09-23
20102010-07-082010-08-26
20112011-07-062011-09-24
20122012-07-072012-08-26
20132013-06-282013-09-15
20142014-07-022014-09-21
20152015-06-072015-09-13
20162016-06-042016-08-30
20172017-05-302017-09-12
20182018-07-052018-08-22
20192019-06-132019-09-03
20202020-07-112020-09-11
20212021-06-012021-09-09
20222022-06-272022-09-27
20232023-05-202023-09-16
20242024-06-222024-09-25
20252025-05-282025-09-19

Every Fixed Threshold

Fixed thresholds at Spokane WFO
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2955202152
35 C (95 F): Days2721202113
40 C (104 F): Days1320213
90 F (32.2 C): Days2942202134
100 F (37.8 C): Days16620211
0 C (32 F): Ice days (max2956201730
0 C (32 F): Frost days (min291832008132
-10 C (14 F): Days with min2938202219
-20 C (-4 F): Days with min20720172
20 C (68 F): Tropical nights (min6320211
10 mm (0.39 in): Days with 10 mm or more rain291520178
25 mm (0.98 in): Days with 25 mm or more rain10220151
10 cm (3.9 in): Days with 10 cm or more snowfall251120081
25 cm (9.8 in): Days with 25 cm or more snowfall4220081

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1997.

Download the Data

  • Data for Spokane WFO 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).