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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Lemhi Threshold Days by Year (USC00105205)

10 fixed thresholds counted per year at Lemhi (USC00105205): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lemhi Thresholds

  • Lemhi: nights with a minimum temperature at or below 0 C (32 F) in 4 years, most in 1916 with 234.
  • Lemhi: nights with a minimum temperature at or below -10 C (14 F) in 4 years, most in 1923 with 83.
  • Lemhi: nights with a minimum temperature at or below -20 C (-4 F) in 4 years, most in 1916 with 30.
  • Lemhi: days with a maximum temperature at or above 30 C (86 F) in 3 years, most in 1917 with 21.
  • 10 fixed thresholds have at least one qualifying day at Lemhi.
3 years with a qualifying day
Days at or above 30 C (86 F) per year at Lemhi Days per year at Lemhi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 21 in 1917. 01020301916: 201917: 211923: 10191619171923
Days per year at Lemhi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 21 in 1917.
Days at or above 30 C (86 F) per year at Lemhi
YearDaysDecade average
19162020.5
19172120.5
19231010
First to last qualifying date each year at Lemhi For each year, a bar from the first to the last day at Lemhi meeting 30 C (86 F). 1916: 18 June 1916 to 2 September 19161917: 7 July 1917 to 3 September 19171923: 18 July 1923 to 17 August 1923191619171923JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lemhi meeting 30 C (86 F).
First to last qualifying date each year at Lemhi
YearFirst dateLast date
19161916-06-181916-09-02
19171917-07-071917-09-03
19231923-07-181923-08-17

Every Fixed Threshold

Fixed thresholds at Lemhi
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days321191710
35 C (95 F): Days1119171
90 F (32.2 C): Days3419163
0 C (32 F): Ice days (max351191649
0 C (32 F): Frost days (min42341916196
-10 C (14 F): Days with min483192383
-20 C (-4 F): Days with min430191614
-30 C (-22 F): Days with min2319161
10 mm (0.39 in): Days with 10 mm or more rain3619163
10 cm (3.9 in): Days with 10 cm or more snowfall2119163

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.

Download the Data

  • Data for Lemhi 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 (2025-12-31).