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Built 2026-10-19 (19 October 2026)

Montague Siskiyou AP Threshold Days by Year (USW00024259)

16 fixed thresholds counted per year at Montague Siskiyou AP (USW00024259): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Montague Siskiyou AP Thresholds

  • Montague Siskiyou AP: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 2020 with 107.
  • Montague Siskiyou AP: days with a maximum temperature at or above 35 C (95 F) in 29 years, most in 2021 with 62.
  • Montague Siskiyou AP: days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 2022 with 85.
  • Montague Siskiyou AP: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 2008 with 169.
  • 16 fixed thresholds have at least one qualifying day at Montague Siskiyou AP.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Montague Siskiyou AP Days per year at Montague Siskiyou AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 107 in 2020. 0501001501949: 791950: 791951: 892001: 882002: 792003: 872004: 752005: 702006: 852007: 842008: 912009: 892010: 722011: 752012: 972013: 822014: 1002015: 992016: 832017: 872018: 882019: 842020: 1072021: 1062022: 1052023: 1002024: 1042025: 922026: 971949200120042007201020132016201920222025
Days per year at Montague Siskiyou AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 107 in 2020.
Days at or above 30 C (86 F) per year at Montague Siskiyou AP
YearDaysDecade average
19497979
19507984
19518984
20018883.1
20027983.1
20038783.1
20047583.1
20057083.1
20068583.1
20078483.1
20089183.1
20098983.1
20107286.7
20117586.7
20129786.7
20138286.7
201410086.7
20159986.7
20168386.7
20178786.7
20188886.7
20198486.7
2020107101.6
2021106101.6
2022105101.6
2023100101.6
2024104101.6
202592101.6
202697101.6
First to last qualifying date each year at Montague Siskiyou AP For each year, a bar from the first to the last day at Montague Siskiyou AP meeting 30 C (86 F). 1949: 10 May 1949 to 23 September 19491950: 25 May 1950 to 12 September 19501951: 12 April 1951 to 24 September 19512001: 7 May 2001 to 4 October 20012002: 12 June 2002 to 7 October 20022003: 22 May 2003 to 21 October 20032004: 2 June 2004 to 28 September 20042005: 26 May 2005 to 30 September 20052006: 14 May 2006 to 29 September 20062007: 15 May 2007 to 12 September 20072008: 15 May 2008 to 30 September 20082009: 20 April 2009 to 27 September 20092010: 13 June 2010 to 2 October 20102011: 20 June 2011 to 29 September 20112012: 13 May 2012 to 2 October 20122013: 10 May 2013 to 15 September 20132014: 30 April 2014 to 7 October 20142015: 28 May 2015 to 15 October 20152016: 18 May 2016 to 28 September 20162017: 22 May 2017 to 6 September 20172018: 26 April 2018 to 28 September 20182019: 11 May 2019 to 26 September 20192020: 8 May 2020 to 6 October 20202021: 29 April 2021 to 4 October 20212022: 25 May 2022 to 16 October 20222023: 28 April 2023 to 8 October 20232024: 11 May 2024 to 8 October 20242025: 27 May 2025 to 27 September 20252026: 9 May 2026 to 9 October 202619492002200620102014201820222026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Montague Siskiyou AP meeting 30 C (86 F).
First to last qualifying date each year at Montague Siskiyou AP
YearFirst dateLast date
19491949-05-101949-09-23
19501950-05-251950-09-12
19511951-04-121951-09-24
20012001-05-072001-10-04
20022002-06-122002-10-07
20032003-05-222003-10-21
20042004-06-022004-09-28
20052005-05-262005-09-30
20062006-05-142006-09-29
20072007-05-152007-09-12
20082008-05-152008-09-30
20092009-04-202009-09-27
20102010-06-132010-10-02
20112011-06-202011-09-29
20122012-05-132012-10-02
20132013-05-102013-09-15
20142014-04-302014-10-07
20152015-05-282015-10-15
20162016-05-182016-09-28
20172017-05-222017-09-06
20182018-04-262018-09-28
20192019-05-112019-09-26
20202020-05-082020-10-06
20212021-04-292021-10-04
20222022-05-252022-10-16
20232023-04-282023-10-08
20242024-05-112024-10-08
20252025-05-272025-09-27
20262026-05-092026-10-09

Every Fixed Threshold

Fixed thresholds at Montague Siskiyou AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days29107202097
35 C (95 F): Days2962202131
40 C (104 F): Days201320241
90 F (32.2 C): Days2985202268
100 F (37.8 C): Days283820215
110 F (43.3 C): Days2420221
0 C (32 F): Ice days (max201419495
0 C (32 F): Frost days (min29169200885
-10 C (14 F): Days with min253119491
-20 C (-4 F): Days with min3419502
20 C (68 F): Tropical nights (min9720221
10 mm (0.39 in): Days with 10 mm or more rain291319514
25 mm (0.98 in): Days with 25 mm or more rain16420022
50 mm (1.97 in): Days with 50 mm or more rain1120051
10 cm (3.9 in): Days with 10 cm or more snowfall2219501
25 cm (9.8 in): Days with 25 cm or more snowfall1119501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Montague Siskiyou AP 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).