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Built 2026-10-15 (15 October 2026)

Fort Belknap Montana Threshold Days by Year

11 fixed thresholds counted per year at Fort Belknap Montana (USR0000MFOR): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fort Belknap Montana Thresholds

  • Fort Belknap Montana: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 2021 with 60.
  • Fort Belknap Montana: days with a maximum temperature at or above 35 C (95 F) in 31 years, most in 2003 with 24.
  • Fort Belknap Montana: days with a maximum temperature at or above 90 F (32.2 C) in 31 years, most in 2003 with 40.
  • Fort Belknap Montana: days with a maximum temperature at or below 0 C (32 F) in 31 years, most in 1996 with 82.
  • 11 fixed thresholds have at least one qualifying day at Fort Belknap Montana.
31 years with a qualifying day
Days at or above 30 C (86 F) per year at Fort Belknap Montana Days per year at Fort Belknap Montana with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 2021. 02040601993: 111994: 401995: 221996: 411997: 351998: 451999: 362000: 372001: 562002: 282003: 592004: 182005: 432006: 522007: 452008: 312009: 342010: 242013: 362014: 292015: 332016: 262017: 522018: 382019: 302020: 422021: 602023: 382024: 432025: 352026: 4819931997200120052009201520192024
Days per year at Fort Belknap Montana with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 2021.
Days at or above 30 C (86 F) per year at Fort Belknap Montana
YearDaysDecade average
19931132.9
19944032.9
19952232.9
19964132.9
19973532.9
19984532.9
19993632.9
20003740.3
20015640.3
20022840.3
20035940.3
20041840.3
20054340.3
20065240.3
20074540.3
20083140.3
20093440.3
20102433.5
20133633.5
20142933.5
20153333.5
20162633.5
20175233.5
20183833.5
20193033.5
20204244.3
20216044.3
20233844.3
20244344.3
20253544.3
20264844.3
First to last qualifying date each year at Fort Belknap Montana For each year, a bar from the first to the last day at Fort Belknap Montana meeting 30 C (86 F). 1993: 11 May 1993 to 15 August 19931994: 23 June 1994 to 25 September 19941995: 30 May 1995 to 3 September 19951996: 7 June 1996 to 13 September 19961997: 15 May 1997 to 30 September 19971998: 3 May 1998 to 17 September 19981999: 25 May 1999 to 23 September 19992000: 7 June 2000 to 17 September 20002001: 28 April 2001 to 1 October 20012002: 25 June 2002 to 16 September 20022003: 25 May 2003 to 7 September 20032004: 5 June 2004 to 9 October 20042005: 20 June 2005 to 9 September 20052006: 17 May 2006 to 12 September 20062007: 21 June 2007 to 16 September 20072008: 18 May 2008 to 19 September 20082009: 30 May 2009 to 24 September 20092010: 29 June 2010 to 28 September 20102013: 12 May 2013 to 16 September 20132014: 23 May 2014 to 25 September 20142015: 8 June 2015 to 25 September 20152016: 7 June 2016 to 27 September 20162017: 5 May 2017 to 11 September 20172018: 15 May 2018 to 7 September 20182019: 2 June 2019 to 16 September 20192020: 31 May 2020 to 10 October 20202021: 17 May 2021 to 5 October 20212023: 29 June 2023 to 26 September 20232024: 23 June 2024 to 29 September 20242025: 10 May 2025 to 30 September 20252026: 13 May 2026 to 9 October 202619931997200120052009201520192024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Fort Belknap Montana meeting 30 C (86 F).
First to last qualifying date each year at Fort Belknap Montana
YearFirst dateLast date
19931993-05-111993-08-15
19941994-06-231994-09-25
19951995-05-301995-09-03
19961996-06-071996-09-13
19971997-05-151997-09-30
19981998-05-031998-09-17
19991999-05-251999-09-23
20002000-06-072000-09-17
20012001-04-282001-10-01
20022002-06-252002-09-16
20032003-05-252003-09-07
20042004-06-052004-10-09
20052005-06-202005-09-09
20062006-05-172006-09-12
20072007-06-212007-09-16
20082008-05-182008-09-19
20092009-05-302009-09-24
20102010-06-292010-09-28
20132013-05-122013-09-16
20142014-05-232014-09-25
20152015-06-082015-09-25
20162016-06-072016-09-27
20172017-05-052017-09-11
20182018-05-152018-09-07
20192019-06-022019-09-16
20202020-05-312020-10-10
20212021-05-172021-10-05
20232023-06-292023-09-26
20242024-06-232024-09-29
20252025-05-102025-09-30
20262026-05-132026-10-09

Every Fixed Threshold

Fixed thresholds at Fort Belknap Montana
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3160202148
35 C (95 F): Days3124200313
40 C (104 F): Days7220034
90 F (32.2 C): Days3140200327
100 F (37.8 C): Days201120035
0 C (32 F): Ice days (max3182199622
0 C (32 F): Frost days (min31179201994
-10 C (14 F): Days with min3183199626
-20 C (-4 F): Days with min314619968
-30 C (-22 F): Days with min221119961
20 C (68 F): Tropical nights (min24920076

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1993.

Download the Data

  • Data for Fort Belknap Montana 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 2026-10-13 (13 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-13).