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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

South Pass Threshold Days by Year (USS0008G03S)

9 fixed thresholds counted per year at South Pass (USS0008G03S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for South Pass Thresholds

  • South Pass: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 1998 with 103.
  • South Pass: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1986 with 45.
  • South Pass: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 2017 with 10.
  • South Pass: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1998 with 283.
  • 9 fixed thresholds have at least one qualifying day at South Pass.
11 years with a qualifying day
Days at or above 30 C (86 F) per year at South Pass Days per year at South Pass with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1988. 02461986: 11988: 61989: 51990: 21995: 11999: 12002: 12006: 32007: 22021: 12026: 1198619891995200220072026
Days per year at South Pass with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1988.
Days at or above 30 C (86 F) per year at South Pass
YearDaysDecade average
198614
198864
198954
199021.3
199511.3
199911.3
200212
200632
200722
202111
202611
First to last qualifying date each year at South Pass For each year, a bar from the first to the last day at South Pass meeting 30 C (86 F). 1986: 18 August 1986 to 18 August 19861988: 24 June 1988 to 31 July 19881989: 4 July 1989 to 8 July 19891990: 26 June 1990 to 29 June 19901995: 29 July 1995 to 29 July 19951999: 6 July 1999 to 6 July 19992002: 13 July 2002 to 13 July 20022006: 15 July 2006 to 29 July 20062007: 21 July 2007 to 22 July 20072021: 19 July 2021 to 19 July 20212026: 12 July 2026 to 12 July 2026198619891995200220072026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at South Pass meeting 30 C (86 F).
First to last qualifying date each year at South Pass
YearFirst dateLast date
19861986-08-181986-08-18
19881988-06-241988-07-31
19891989-07-041989-07-08
19901990-06-261990-06-29
19951995-07-291995-07-29
19991999-07-061999-07-06
20022002-07-132002-07-13
20062006-07-152006-07-29
20072007-07-212007-07-22
20212021-07-192021-07-19
20262026-07-122026-07-12

Every Fixed Threshold

Fixed thresholds at South Pass
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days11619881
0 C (32 F): Ice days (max41103199834
0 C (32 F): Frost days (min332831998143
-10 C (14 F): Days with min33137199746
-20 C (-4 F): Days with min333419976
-30 C (-22 F): Days with min11519961
10 mm (0.39 in): Days with 10 mm or more rain4145198620
25 mm (0.98 in): Days with 25 mm or more rain411020171
50 mm (1.97 in): Days with 50 mm or more rain6219992

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 South Pass 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).