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Built 2026-10-18 (18 October 2026)

Pryor Mountain Montana Threshold Days by Year

12 fixed thresholds counted per year at Pryor Mountain Montana (USR0000MPRY): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Pryor Mountain Montana Thresholds

  • Pryor Mountain Montana: days with a maximum temperature at or below 0 C (32 F) in 32 years, most in 2019 with 81.
  • Pryor Mountain Montana: nights with a minimum temperature at or below 0 C (32 F) in 31 years, most in 2019 with 195.
  • Pryor Mountain Montana: nights with a minimum temperature at or below -10 C (14 F) in 31 years, most in 2019 with 65.
  • Pryor Mountain Montana: nights with a minimum temperature at or below -20 C (-4 F) in 31 years, most in 1996 with 27.
  • 12 fixed thresholds have at least one qualifying day at Pryor Mountain Montana.
28 years with a qualifying day
Days at or above 30 C (86 F) per year at Pryor Mountain Montana Days per year at Pryor Mountain Montana with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 35 in 2001. 0102030401992: 31994: 201995: 161996: 261997: 91998: 261999: 222000: 342001: 352002: 242003: 202004: 32006: 72007: 92010: 22011: 22012: 112013: 12015: 12016: 32017: 22018: 52020: 152021: 122023: 32024: 92025: 32026: 91992199619992002200620112015201820232026
Days per year at Pryor Mountain Montana with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 35 in 2001.
Days at or above 30 C (86 F) per year at Pryor Mountain Montana
YearDaysDecade average
1992317.4
19942017.4
19951617.4
19962617.4
1997917.4
19982617.4
19992217.4
20003418.9
20013518.9
20022418.9
20032018.9
2004318.9
2006718.9
2007918.9
201023.4
201123.4
2012113.4
201313.4
201513.4
201633.4
201723.4
201853.4
2020158.5
2021128.5
202338.5
202498.5
202538.5
202698.5
First to last qualifying date each year at Pryor Mountain Montana For each year, a bar from the first to the last day at Pryor Mountain Montana meeting 30 C (86 F). 1992: 14 August 1992 to 19 August 19921994: 24 June 1994 to 8 September 19941995: 27 July 1995 to 3 September 19951996: 9 June 1996 to 4 September 19961997: 9 July 1997 to 27 August 19971998: 10 July 1998 to 9 September 19981999: 11 July 1999 to 30 August 19992000: 7 June 2000 to 16 September 20002001: 22 June 2001 to 28 September 20012002: 26 June 2002 to 6 August 20022003: 12 July 2003 to 26 August 20032004: 17 July 2004 to 1 August 20042006: 15 July 2006 to 30 July 20062007: 29 June 2007 to 4 September 20072010: 16 July 2010 to 21 August 20102011: 18 July 2011 to 25 July 20112012: 24 June 2012 to 29 August 20122013: 28 August 2013 to 28 August 20132015: 14 August 2015 to 14 August 20152016: 19 July 2016 to 31 July 20162017: 15 July 2017 to 16 July 20172018: 6 July 2018 to 12 August 20182020: 13 June 2020 to 5 September 20202021: 14 June 2021 to 16 August 20212023: 24 July 2023 to 18 August 20232024: 23 June 2024 to 2 September 20242025: 9 July 2025 to 20 August 20252026: 11 July 2026 to 1 August 20261992199720012006201220172023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Pryor Mountain Montana meeting 30 C (86 F).
First to last qualifying date each year at Pryor Mountain Montana
YearFirst dateLast date
19921992-08-141992-08-19
19941994-06-241994-09-08
19951995-07-271995-09-03
19961996-06-091996-09-04
19971997-07-091997-08-27
19981998-07-101998-09-09
19991999-07-111999-08-30
20002000-06-072000-09-16
20012001-06-222001-09-28
20022002-06-262002-08-06
20032003-07-122003-08-26
20042004-07-172004-08-01
20062006-07-152006-07-30
20072007-06-292007-09-04
20102010-07-162010-08-21
20112011-07-182011-07-25
20122012-06-242012-08-29
20132013-08-282013-08-28
20152015-08-142015-08-14
20162016-07-192016-07-31
20172017-07-152017-07-16
20182018-07-062018-08-12
20202020-06-132020-09-05
20212021-06-142021-08-16
20232023-07-242023-08-18
20242024-06-232024-09-02
20252025-07-092025-08-20
20262026-07-112026-08-01

Every Fixed Threshold

Fixed thresholds at Pryor Mountain Montana
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days283520019
35 C (95 F): Days6620001
40 C (104 F): Days1120021
90 F (32.2 C): Days182020005
100 F (37.8 C): Days2320023
0 C (32 F): Ice days (max3281201924
0 C (32 F): Frost days (min31195201987
-10 C (14 F): Days with min3165201915
-20 C (-4 F): Days with min312719964
-30 C (-22 F): Days with min7420244
20 C (68 F): Tropical nights (min291320005
25 C (77 F): Days with min3120011

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1992.

Download the Data

  • Data for Pryor 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-16).