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Built 2026-10-19 (19 October 2026)

Many Glacier Threshold Days by Year (USS0013A27S)

14 fixed thresholds counted per year at Many Glacier (USS0013A27S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Many Glacier Thresholds

  • Many Glacier: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1990 with 64.
  • Many Glacier: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 2015 with 13.
  • Many Glacier: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 1996 with 93.
  • Many Glacier: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 2024 with 21.
  • 14 fixed thresholds have at least one qualifying day at Many Glacier.
37 years with a qualifying day
Days at or above 30 C (86 F) per year at Many Glacier Days per year at Many Glacier with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 21 in 2024. 01020301986: 141987: 71988: 101989: 71990: 61991: 81992: 91993: 21994: 161996: 41997: 41998: 91999: 22000: 72001: 72002: 42003: 172004: 42005: 42006: 112007: 172008: 62011: 22012: 122013: 52014: 72015: 152016: 32017: 132018: 62019: 22020: 82021: 122022: 142023: 122024: 212026: 31986199019941999200320072013201720212026
Days per year at Many Glacier with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 21 in 2024.
Days at or above 30 C (86 F) per year at Many Glacier
YearDaysDecade average
1986149.5
198779.5
1988109.5
198979.5
199066.7
199186.7
199296.7
199326.7
1994166.7
199646.7
199746.7
199896.7
199926.7
200078.6
200178.6
200248.6
2003178.6
200448.6
200548.6
2006118.6
2007178.6
200868.6
201127.2
2012127.2
201357.2
201477.2
2015157.2
201637.2
2017137.2
201867.2
201927.2
2020811.7
20211211.7
20221411.7
20231211.7
20242111.7
2026311.7
First to last qualifying date each year at Many Glacier For each year, a bar from the first to the last day at Many Glacier meeting 30 C (86 F). 1986: 26 May 1986 to 28 August 19861987: 14 June 1987 to 30 July 19871988: 25 June 1988 to 5 September 19881989: 19 July 1989 to 8 August 19891990: 11 July 1990 to 15 August 19901991: 13 July 1991 to 31 August 19911992: 23 June 1992 to 19 August 19921993: 11 May 1993 to 12 May 19931994: 23 June 1994 to 20 August 19941996: 11 August 1996 to 27 August 19961997: 3 August 1997 to 6 August 19971998: 26 July 1998 to 7 September 19981999: 18 August 1999 to 27 August 19992000: 13 July 2000 to 9 August 20002001: 4 July 2001 to 25 September 20012002: 11 July 2002 to 17 July 20022003: 18 June 2003 to 26 August 20032004: 16 July 2004 to 14 August 20042005: 21 June 2005 to 7 August 20052006: 4 July 2006 to 5 September 20062007: 28 June 2007 to 2 August 20072008: 29 June 2008 to 18 August 20082011: 17 July 2011 to 18 July 20112012: 7 July 2012 to 20 August 20122013: 1 July 2013 to 26 July 20132014: 13 July 2014 to 12 August 20142015: 26 June 2015 to 26 August 20152016: 7 June 2016 to 30 August 20162017: 6 July 2017 to 7 September 20172018: 16 July 2018 to 10 August 20182019: 23 July 2019 to 21 August 20192020: 27 July 2020 to 17 August 20202021: 14 June 2021 to 4 August 20212022: 28 July 2022 to 3 September 20222023: 20 July 2023 to 29 August 20232024: 8 July 2024 to 8 September 20242026: 25 July 2026 to 9 September 202619861991199720022007201420192024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Many Glacier meeting 30 C (86 F).
First to last qualifying date each year at Many Glacier
YearFirst dateLast date
19861986-05-261986-08-28
19871987-06-141987-07-30
19881988-06-251988-09-05
19891989-07-191989-08-08
19901990-07-111990-08-15
19911991-07-131991-08-31
19921992-06-231992-08-19
19931993-05-111993-05-12
19941994-06-231994-08-20
19961996-08-111996-08-27
19971997-08-031997-08-06
19981998-07-261998-09-07
19991999-08-181999-08-27
20002000-07-132000-08-09
20012001-07-042001-09-25
20022002-07-112002-07-17
20032003-06-182003-08-26
20042004-07-162004-08-14
20052005-06-212005-08-07
20062006-07-042006-09-05
20072007-06-282007-08-02
20082008-06-292008-08-18
20112011-07-172011-07-18
20122012-07-072012-08-20
20132013-07-012013-07-26
20142014-07-132014-08-12
20152015-06-262015-08-26
20162016-06-072016-08-30
20172017-07-062017-09-07
20182018-07-162018-08-10
20192019-07-232019-08-21
20202020-07-272020-08-17
20212021-06-142021-08-04
20222022-07-282022-09-03
20232023-07-202023-08-29
20242024-07-082024-09-08
20262026-07-252026-09-09

Every Fixed Threshold

Fixed thresholds at Many Glacier
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days372120243
35 C (95 F): Days4119941
90 F (32.2 C): Days30720247
0 C (32 F): Ice days (max4193199630
0 C (32 F): Frost days (min33211200097
-10 C (14 F): Days with min3378199619
-20 C (-4 F): Days with min334819968
-30 C (-22 F): Days with min302019963
-40 C (-40 F): Days with min6320243
20 C (68 F): Tropical nights (min3119981
10 mm (0.39 in): Days with 10 mm or more rain4864199026
25 mm (0.98 in): Days with 25 mm or more rain481320157
50 mm (1.97 in): Days with 50 mm or more rain30519952
100 mm (3.94 in): Days with 100 mm or more rain2119901

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1986.

Download the Data

  • Data for Many Glacier 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).