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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Bighorn Mountain Montana Threshold Days by Year (USR0000MBIG)

9 fixed thresholds counted per year at Bighorn Mountain Montana (USR0000MBIG): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bighorn Mountain Montana Thresholds

  • Bighorn Mountain Montana: days with a maximum temperature at or below 0 C (32 F) in 28 years, most in 2018 with 116.
  • Bighorn Mountain Montana: nights with a minimum temperature at or below 0 C (32 F) in 27 years, most in 2019 with 218.
  • Bighorn Mountain Montana: nights with a minimum temperature at or below -10 C (14 F) in 27 years, most in 2019 with 83.
  • Bighorn Mountain Montana: nights with a minimum temperature at or below -20 C (-4 F) in 27 years, most in 2022 with 15.
  • 9 fixed thresholds have at least one qualifying day at Bighorn Mountain Montana.
9 years with a qualifying day
Days at or above 30 C (86 F) per year at Bighorn Mountain Montana Days per year at Bighorn Mountain Montana with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 2000. 0510151995: 41996: 51998: 81999: 82000: 152001: 132002: 132005: 12026: 1199519961998199920002001200220052026
Days per year at Bighorn Mountain Montana with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 2000.
Days at or above 30 C (86 F) per year at Bighorn Mountain Montana
YearDaysDecade average
199546.3
199656.3
199886.3
199986.3
20001510.5
20011310.5
20021310.5
2005110.5
202611
First to last qualifying date each year at Bighorn Mountain Montana For each year, a bar from the first to the last day at Bighorn Mountain Montana meeting 30 C (86 F). 1995: 10 July 1995 to 7 August 19951996: 3 July 1996 to 24 August 19961998: 16 July 1998 to 5 September 19981999: 12 July 1999 to 30 August 19992000: 13 July 2000 to 15 September 20002001: 22 June 2001 to 4 September 20012002: 26 June 2002 to 6 August 20022005: 13 July 2005 to 13 July 20052026: 12 July 2026 to 12 July 202619951998200020022026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bighorn Mountain Montana meeting 30 C (86 F).
First to last qualifying date each year at Bighorn Mountain Montana
YearFirst dateLast date
19951995-07-101995-08-07
19961996-07-031996-08-24
19981998-07-161998-09-05
19991999-07-121999-08-30
20002000-07-132000-09-15
20012001-06-222001-09-04
20022002-06-262002-08-06
20052005-07-132005-07-13
20262026-07-122026-07-12

Every Fixed Threshold

Fixed thresholds at Bighorn Mountain Montana
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days91520001
35 C (95 F): Days2320023
90 F (32.2 C): Days5620016
0 C (32 F): Ice days (max28116201841
0 C (32 F): Frost days (min272182019117
-10 C (14 F): Days with min2783201930
-20 C (-4 F): Days with min271520224
-30 C (-22 F): Days with min7320243
20 C (68 F): Tropical nights (min10820001

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1995.

Download the Data

  • Data for Bighorn Mountain 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).