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Built 2026-10-19 (19 October 2026)

Lost Horse Threshold Days by Year (USS0021C39S)

11 fixed thresholds counted per year at Lost Horse (USS0021C39S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lost Horse Thresholds

  • Lost Horse: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 2006 with 85.
  • Lost Horse: nights with a minimum temperature at or below 0 C (32 F) in 36 years, most in 1999 with 213.
  • Lost Horse: nights with a minimum temperature at or below -10 C (14 F) in 36 years, most in 1993 with 35.
  • Lost Horse: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 2024 with 57.
  • 11 fixed thresholds have at least one qualifying day at Lost Horse.
21 years with a qualifying day
Days at or above 30 C (86 F) per year at Lost Horse Days per year at Lost Horse with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1998. 024681992: 61994: 41996: 41998: 82001: 12002: 42003: 62006: 42007: 12008: 22009: 42014: 22015: 72017: 52018: 22020: 22021: 72022: 82023: 22024: 32025: 51992199820032008201520202023
Days per year at Lost Horse with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1998.
Days at or above 30 C (86 F) per year at Lost Horse
YearDaysDecade average
199265.5
199445.5
199645.5
199885.5
200113.1
200243.1
200363.1
200643.1
200713.1
200823.1
200943.1
201424
201574
201754
201824
202024.5
202174.5
202284.5
202324.5
202434.5
202554.5
First to last qualifying date each year at Lost Horse For each year, a bar from the first to the last day at Lost Horse meeting 30 C (86 F). 1992: 23 June 1992 to 14 August 19921994: 21 July 1994 to 24 July 19941996: 14 July 1996 to 10 August 19961998: 26 July 1998 to 6 September 19982001: 4 July 2001 to 4 July 20012002: 11 July 2002 to 13 August 20022003: 22 July 2003 to 31 July 20032006: 21 July 2006 to 24 July 20062007: 5 July 2007 to 5 July 20072008: 16 August 2008 to 17 August 20082009: 31 July 2009 to 20 August 20092014: 16 July 2014 to 29 July 20142015: 27 June 2015 to 2 August 20152017: 10 August 2017 to 3 September 20172018: 31 July 2018 to 9 August 20182020: 27 July 2020 to 6 September 20202021: 28 June 2021 to 15 August 20212022: 26 July 2022 to 18 August 20222023: 15 August 2023 to 16 August 20232024: 8 July 2024 to 2 August 20242025: 9 June 2025 to 3 September 20251992199820032008201520202023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lost Horse meeting 30 C (86 F).
First to last qualifying date each year at Lost Horse
YearFirst dateLast date
19921992-06-231992-08-14
19941994-07-211994-07-24
19961996-07-141996-08-10
19981998-07-261998-09-06
20012001-07-042001-07-04
20022002-07-112002-08-13
20032003-07-222003-07-31
20062006-07-212006-07-24
20072007-07-052007-07-05
20082008-08-162008-08-17
20092009-07-312009-08-20
20142014-07-162014-07-29
20152015-06-272015-08-02
20172017-08-102017-09-03
20182018-07-312018-08-09
20202020-07-272020-09-06
20212021-06-282021-08-15
20222022-07-262022-08-18
20232023-08-152023-08-16
20242024-07-082024-08-02
20252025-06-092025-09-03

Every Fixed Threshold

Fixed thresholds at Lost Horse
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days21819985
90 F (32.2 C): Days9420222
0 C (32 F): Ice days (max3685200617
0 C (32 F): Frost days (min36213199996
-10 C (14 F): Days with min363519936
-20 C (-4 F): Days with min13419964
20 C (68 F): Tropical nights (min12620222
10 mm (0.39 in): Days with 10 mm or more rain3657202412
25 mm (0.98 in): Days with 25 mm or more rain341420248
50 mm (1.97 in): Days with 50 mm or more rain12319962
100 mm (3.94 in): Days with 100 mm or more rain1120241

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 Lost Horse 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).