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Built 2026-10-19 (19 October 2026)

Stevens Pass Threshold Days by Year (USS0021B01S)

12 fixed thresholds counted per year at Stevens Pass (USS0021B01S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Stevens Pass Thresholds

  • Stevens Pass: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 2012 with 104.
  • Stevens Pass: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 2014 with 45.
  • Stevens Pass: days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 1990 with 14.
  • Stevens Pass: days with a maximum temperature at or below 0 C (32 F) in 34 years, most in 2000 with 73.
  • 12 fixed thresholds have at least one qualifying day at Stevens Pass.
30 years with a qualifying day
Days at or above 30 C (86 F) per year at Stevens Pass Days per year at Stevens Pass with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 12 in 2022. 0510151990: 41992: 61994: 31995: 21996: 111998: 91999: 22000: 12001: 22004: 92005: 32006: 112007: 42008: 82009: 92011: 12012: 42013: 12014: 42015: 82016: 12017: 92018: 42020: 52021: 82022: 122023: 52024: 42025: 62026: 31990199519992004200720112014201720212024
Days per year at Stevens Pass with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 12 in 2022.
Days at or above 30 C (86 F) per year at Stevens Pass
YearDaysDecade average
199045.3
199265.3
199435.3
199525.3
1996115.3
199895.3
199925.3
200015.9
200125.9
200495.9
200535.9
2006115.9
200745.9
200885.9
200995.9
201114
201244
201314
201444
201584
201614
201794
201844
202056.1
202186.1
2022126.1
202356.1
202446.1
202566.1
202636.1
First to last qualifying date each year at Stevens Pass For each year, a bar from the first to the last day at Stevens Pass meeting 30 C (86 F). 1990: 11 July 1990 to 12 August 19901992: 22 June 1992 to 17 August 19921994: 20 July 1994 to 22 July 19941995: 19 July 1995 to 2 September 19951996: 13 July 1996 to 26 August 19961998: 21 July 1998 to 31 August 19981999: 23 August 1999 to 27 August 19992000: 21 July 2000 to 21 July 20002001: 12 August 2001 to 15 August 20012004: 21 June 2004 to 14 August 20042005: 21 July 2005 to 4 August 20052006: 25 June 2006 to 3 September 20062007: 4 July 2007 to 12 July 20072008: 29 June 2008 to 16 August 20082009: 21 July 2009 to 20 August 20092011: 11 September 2011 to 11 September 20112012: 8 July 2012 to 18 August 20122013: 1 July 2013 to 1 July 20132014: 11 July 2014 to 11 August 20142015: 26 June 2015 to 12 August 20152016: 5 June 2016 to 5 June 20162017: 6 July 2017 to 28 August 20172018: 29 July 2018 to 9 August 20182020: 27 July 2020 to 16 August 20202021: 26 June 2021 to 13 August 20212022: 25 July 2022 to 31 August 20222023: 13 August 2023 to 28 August 20232024: 8 July 2024 to 1 September 20242025: 11 August 2025 to 3 September 20252026: 21 July 2026 to 21 August 202619901996200120072012201620212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Stevens Pass meeting 30 C (86 F).
First to last qualifying date each year at Stevens Pass
YearFirst dateLast date
19901990-07-111990-08-12
19921992-06-221992-08-17
19941994-07-201994-07-22
19951995-07-191995-09-02
19961996-07-131996-08-26
19981998-07-211998-08-31
19991999-08-231999-08-27
20002000-07-212000-07-21
20012001-08-122001-08-15
20042004-06-212004-08-14
20052005-07-212005-08-04
20062006-06-252006-09-03
20072007-07-042007-07-12
20082008-06-292008-08-16
20092009-07-212009-08-20
20112011-09-112011-09-11
20122012-07-082012-08-18
20132013-07-012013-07-01
20142014-07-112014-08-11
20152015-06-262015-08-12
20162016-06-052016-06-05
20172017-07-062017-08-28
20182018-07-292018-08-09
20202020-07-272020-08-16
20212021-06-262021-08-13
20222022-07-252022-08-31
20232023-08-132023-08-28
20242024-07-082024-09-01
20252025-08-112025-09-03
20262026-07-212026-08-21

Every Fixed Threshold

Fixed thresholds at Stevens Pass
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days301220223
35 C (95 F): Days2220212
90 F (32.2 C): Days18519981
0 C (32 F): Ice days (max3473200028
0 C (32 F): Frost days (min342061996103
-10 C (14 F): Days with min342820171
-20 C (-4 F): Days with min7619903
10 mm (0.39 in): Days with 10 mm or more rain44104201245
25 mm (0.98 in): Days with 25 mm or more rain4445201416
50 mm (1.97 in): Days with 50 mm or more rain441419902
100 mm (3.94 in): Days with 100 mm or more rain19619902
200 mm (7.87 in): Days with 200 mm or more rain1119901

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1990.

Download the Data

  • Data for Stevens Pass 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 (2026-10-17).