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

Ust-Isim Threshold Days by Year (RSM00028382)

11 fixed thresholds counted per year at Ust-Isim (RSM00028382): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ust-Isim Thresholds

  • Ust-Isim: days with 10 mm (0.39 in) or more of precipitation in 62 years, most in 1940 with 13.
  • Ust-Isim: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1965 with 4.
  • Ust-Isim: days with a maximum temperature at or below 0 C (32 F) in 5 years, most in 1969 with 144.
  • Ust-Isim: days with a maximum temperature at or above 30 C (86 F) in 4 years, most in 2012 with 17.
  • 11 fixed thresholds have at least one qualifying day at Ust-Isim.
4 years with a qualifying day
Days at or above 30 C (86 F) per year at Ust-Isim Days per year at Ust-Isim with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 17 in 2012. 051015201969: 82010: 72011: 42012: 171969201020112012
Days per year at Ust-Isim with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 17 in 2012.
Days at or above 30 C (86 F) per year at Ust-Isim
YearDaysDecade average
196988
201079.3
201149.3
2012179.3
First to last qualifying date each year at Ust-Isim For each year, a bar from the first to the last day at Ust-Isim meeting 30 C (86 F). 1969: 25 June 1969 to 26 July 19692010: 6 June 2010 to 31 August 20102011: 12 August 2011 to 15 August 20112012: 31 May 2012 to 11 August 20121969201020112012JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ust-Isim meeting 30 C (86 F).
First to last qualifying date each year at Ust-Isim
YearFirst dateLast date
19691969-06-251969-07-26
20102010-06-062010-08-31
20112011-08-122011-08-15
20122012-05-312012-08-11

Every Fixed Threshold

Fixed thresholds at Ust-Isim
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days417201217
35 C (95 F): Days2219691
90 F (32.2 C): Days3419694
0 C (32 F): Ice days (max5144196954
0 C (32 F): Frost days (min10n/a72
-10 C (14 F): Days with min10n/a39
-20 C (-4 F): Days with min10n/a21
-30 C (-22 F): Days with min10n/a5
10 mm (0.39 in): Days with 10 mm or more rain621319401
25 mm (0.98 in): Days with 25 mm or more rain38419651
50 mm (1.97 in): Days with 50 mm or more rain20n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

  • Data for Ust-Isim 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).