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

Lemhi Ridge Threshold Days by Year (USS0013E23S)

9 fixed thresholds counted per year at Lemhi Ridge (USS0013E23S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lemhi Ridge Thresholds

  • Lemhi Ridge: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1995 with 29.
  • Lemhi Ridge: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1995 with 3.
  • Lemhi Ridge: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 1996 with 101.
  • Lemhi Ridge: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 1995 with 260.
  • 9 fixed thresholds have at least one qualifying day at Lemhi Ridge.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Lemhi Ridge Days per year at Lemhi Ridge with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 1 in 1994. 001111994: 12002: 12007: 12022: 12026: 119942002200720222026
Days per year at Lemhi Ridge with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 1 in 1994.
Days at or above 30 C (86 F) per year at Lemhi Ridge
YearDaysDecade average
199411
200211
200711
202211
202611
First to last qualifying date each year at Lemhi Ridge For each year, a bar from the first to the last day at Lemhi Ridge meeting 30 C (86 F). 1994: 22 July 1994 to 22 July 19942002: 12 July 2002 to 12 July 20022007: 6 July 2007 to 6 July 20072022: 3 September 2022 to 3 September 20222026: 12 July 2026 to 12 July 202619942002200720222026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lemhi Ridge meeting 30 C (86 F).
First to last qualifying date each year at Lemhi Ridge
YearFirst dateLast date
19941994-07-221994-07-22
20022002-07-122002-07-12
20072007-07-062007-07-06
20222022-09-032022-09-03
20262026-07-122026-07-12

Every Fixed Threshold

Fixed thresholds at Lemhi Ridge
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5119941
0 C (32 F): Ice days (max36101199622
0 C (32 F): Frost days (min342601995137
-10 C (14 F): Days with min3483199416
-20 C (-4 F): Days with min301319966
-30 C (-22 F): Days with min9319982
10 mm (0.39 in): Days with 10 mm or more rain4729199514
25 mm (0.98 in): Days with 25 mm or more rain38319956
50 mm (1.97 in): Days with 50 mm or more rain1119801

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1994.

Download the Data

  • Data for Lemhi Ridge 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).