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Built 2026-10-19 (19 October 2026)

Trail Gulch Idaho Threshold Days by Year (USR0000ITRA)

10 fixed thresholds counted per year at Trail Gulch Idaho (USR0000ITRA): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Trail Gulch Idaho Thresholds

  • Trail Gulch Idaho: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 2007 with 55.
  • Trail Gulch Idaho: days with a maximum temperature at or below 0 C (32 F) in 35 years, most in 1988 with 59.
  • Trail Gulch Idaho: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 2008 with 155.
  • Trail Gulch Idaho: nights with a minimum temperature at or above 20 C (68 F) in 34 years, most in 2021 with 36.
  • 10 fixed thresholds have at least one qualifying day at Trail Gulch Idaho.
35 years with a qualifying day
Days at or above 30 C (86 F) per year at Trail Gulch Idaho Days per year at Trail Gulch Idaho with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 2007. 02040601988: 121990: 341991: 141992: 231993: 11995: 201996: 291997: 241998: 421999: 362000: 422001: 482002: 382003: 472004: 292006: 452007: 552008: 352009: 342010: 342011: 352012: 442013: 512014: 292015: 282016: 352017: 462018: 412019: 312020: 342021: 542023: 312024: 452025: 422026: 51198819931998200220072011201520192024
Days per year at Trail Gulch Idaho with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 2007.
Days at or above 30 C (86 F) per year at Trail Gulch Idaho
YearDaysDecade average
19881212
19903424.8
19911424.8
19922324.8
1993124.8
19952024.8
19962924.8
19972424.8
19984224.8
19993624.8
20004241.4
20014841.4
20023841.4
20034741.4
20042941.4
20064541.4
20075541.4
20083541.4
20093441.4
20103437.4
20113537.4
20124437.4
20135137.4
20142937.4
20152837.4
20163537.4
20174637.4
20184137.4
20193137.4
20203442.8
20215442.8
20233142.8
20244542.8
20254242.8
20265142.8
First to last qualifying date each year at Trail Gulch Idaho For each year, a bar from the first to the last day at Trail Gulch Idaho meeting 30 C (86 F). 1988: 21 June 1988 to 25 August 19881990: 22 June 1990 to 14 September 19901991: 12 July 1991 to 30 August 19911992: 22 June 1992 to 29 September 19921993: 28 July 1993 to 28 July 19931995: 6 July 1995 to 15 September 19951996: 1 July 1996 to 30 August 19961997: 5 July 1997 to 9 September 19971998: 2 July 1998 to 4 September 19981999: 15 June 1999 to 9 September 19992000: 4 June 2000 to 16 September 20002001: 24 May 2001 to 27 September 20012002: 30 May 2002 to 14 September 20022003: 28 May 2003 to 4 September 20032004: 3 June 2004 to 11 September 20042006: 6 June 2006 to 5 September 20062007: 4 June 2007 to 3 September 20072008: 21 June 2008 to 30 August 20082009: 18 May 2009 to 19 September 20092010: 28 June 2010 to 2 October 20102011: 28 June 2011 to 30 September 20112012: 4 June 2012 to 14 September 20122013: 9 June 2013 to 1 September 20132014: 2 July 2014 to 17 September 20142015: 18 June 2015 to 25 September 20152016: 5 June 2016 to 31 August 20162017: 7 June 2017 to 8 September 20172018: 13 June 2018 to 7 September 20182019: 10 July 2019 to 5 September 20192020: 29 May 2020 to 17 September 20202021: 3 June 2021 to 10 September 20212023: 1 July 2023 to 29 August 20232024: 8 June 2024 to 28 September 20242025: 29 May 2025 to 3 September 20252026: 16 June 2026 to 4 October 20261988199520002006201120162021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Trail Gulch Idaho meeting 30 C (86 F).
First to last qualifying date each year at Trail Gulch Idaho
YearFirst dateLast date
19881988-06-211988-08-25
19901990-06-221990-09-14
19911991-07-121991-08-30
19921992-06-221992-09-29
19931993-07-281993-07-28
19951995-07-061995-09-15
19961996-07-011996-08-30
19971997-07-051997-09-09
19981998-07-021998-09-04
19991999-06-151999-09-09
20002000-06-042000-09-16
20012001-05-242001-09-27
20022002-05-302002-09-14
20032003-05-282003-09-04
20042004-06-032004-09-11
20062006-06-062006-09-05
20072007-06-042007-09-03
20082008-06-212008-08-30
20092009-05-182009-09-19
20102010-06-282010-10-02
20112011-06-282011-09-30
20122012-06-042012-09-14
20132013-06-092013-09-01
20142014-07-022014-09-17
20152015-06-182015-09-25
20162016-06-052016-08-31
20172017-06-072017-09-08
20182018-06-132018-09-07
20192019-07-102019-09-05
20202020-05-292020-09-17
20212021-06-032021-09-10
20232023-07-012023-08-29
20242024-06-082024-09-28
20252025-05-292025-09-03
20262026-06-162026-10-04

Every Fixed Threshold

Fixed thresholds at Trail Gulch Idaho
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3555200751
35 C (95 F): Days2713200311
90 F (32.2 C): Days3335200729
100 F (37.8 C): Days4220021
0 C (32 F): Ice days (max355919889
0 C (32 F): Frost days (min34155200849
-10 C (14 F): Days with min332019901
-20 C (-4 F): Days with min1719907
20 C (68 F): Tropical nights (min3436202135
25 C (77 F): Days with min13320031

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 Trail Gulch Idaho 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).