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Built 2026-10-19 (19 October 2026)

Red Rock Montana Threshold Days by Year (USR0000MRED)

9 fixed thresholds counted per year at Red Rock Montana (USR0000MRED): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Red Rock Montana Thresholds

  • Red Rock Montana: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 2022 with 107.
  • Red Rock Montana: nights with a minimum temperature at or below 0 C (32 F) in 36 years, most in 2002 with 254.
  • Red Rock Montana: nights with a minimum temperature at or below -10 C (14 F) in 36 years, most in 2008 with 130.
  • Red Rock Montana: nights with a minimum temperature at or below -20 C (-4 F) in 36 years, most in 1993 with 52.
  • 9 fixed thresholds have at least one qualifying day at Red Rock Montana.
31 years with a qualifying day
Days at or above 30 C (86 F) per year at Red Rock Montana Days per year at Red Rock Montana with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 23 in 2003. 01020301988: 121989: 21990: 41991: 11994: 41996: 22000: 102001: 62002: 92003: 232005: 62006: 102007: 172008: 52009: 32011: 12012: 52013: 132014: 12015: 92016: 42017: 62018: 42019: 32020: 72021: 122022: 182023: 62024: 152025: 52026: 1519881994200220072012201620202024
Days per year at Red Rock Montana with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 23 in 2003.
Days at or above 30 C (86 F) per year at Red Rock Montana
YearDaysDecade average
1988127
198927
199042.8
199112.8
199442.8
199622.8
2000109.9
200169.9
200299.9
2003239.9
200569.9
2006109.9
2007179.9
200859.9
200939.9
201115.1
201255.1
2013135.1
201415.1
201595.1
201645.1
201765.1
201845.1
201935.1
2020711.1
20211211.1
20221811.1
2023611.1
20241511.1
2025511.1
20261511.1
First to last qualifying date each year at Red Rock Montana For each year, a bar from the first to the last day at Red Rock Montana meeting 30 C (86 F). 1988: 24 June 1988 to 25 August 19881989: 19 July 1989 to 25 July 19891990: 6 August 1990 to 9 August 19901991: 9 August 1991 to 9 August 19911994: 20 June 1994 to 4 August 19941996: 11 August 1996 to 25 August 19962000: 13 July 2000 to 9 August 20002001: 1 July 2001 to 8 August 20012002: 26 June 2002 to 24 July 20022003: 10 July 2003 to 20 August 20032005: 13 July 2005 to 6 August 20052006: 11 July 2006 to 29 July 20062007: 4 July 2007 to 15 August 20072008: 30 June 2008 to 24 August 20082009: 23 July 2009 to 22 August 20092011: 26 August 2011 to 26 August 20112012: 10 July 2012 to 8 August 20122013: 28 June 2013 to 18 August 20132014: 27 July 2014 to 27 July 20142015: 26 June 2015 to 25 August 20152016: 28 June 2016 to 22 July 20162017: 5 July 2017 to 3 September 20172018: 9 July 2018 to 11 August 20182019: 22 July 2019 to 4 August 20192020: 31 July 2020 to 5 September 20202021: 29 June 2021 to 16 August 20212022: 22 July 2022 to 7 September 20222023: 22 July 2023 to 17 August 20232024: 23 June 2024 to 5 August 20242025: 8 July 2025 to 24 August 20252026: 11 July 2026 to 21 August 202619881994200220072012201620202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Red Rock Montana meeting 30 C (86 F).
First to last qualifying date each year at Red Rock Montana
YearFirst dateLast date
19881988-06-241988-08-25
19891989-07-191989-07-25
19901990-08-061990-08-09
19911991-08-091991-08-09
19941994-06-201994-08-04
19961996-08-111996-08-25
20002000-07-132000-08-09
20012001-07-012001-08-08
20022002-06-262002-07-24
20032003-07-102003-08-20
20052005-07-132005-08-06
20062006-07-112006-07-29
20072007-07-042007-08-15
20082008-06-302008-08-24
20092009-07-232009-08-22
20112011-08-262011-08-26
20122012-07-102012-08-08
20132013-06-282013-08-18
20142014-07-272014-07-27
20152015-06-262015-08-25
20162016-06-282016-07-22
20172017-07-052017-09-03
20182018-07-092018-08-11
20192019-07-222019-08-04
20202020-07-312020-09-05
20212021-06-292021-08-16
20222022-07-222022-09-07
20232023-07-222023-08-17
20242024-06-232024-08-05
20252025-07-082025-08-24
20262026-07-112026-08-21

Every Fixed Threshold

Fixed thresholds at Red Rock Montana
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3123200315
35 C (95 F): Days2220021
90 F (32.2 C): Days14620032
0 C (32 F): Ice days (max36107202222
0 C (32 F): Frost days (min362542002152
-10 C (14 F): Days with min36130200838
-20 C (-4 F): Days with min365219934
-30 C (-22 F): Days with min311219893
-40 C (-40 F): Days with min3219901

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1988.

Download the Data

  • Data for Red Rock 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).