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

Semjachik Threshold Days by Year (RSM00032509)

10 fixed thresholds counted per year at Semjachik (RSM00032509): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Semjachik Thresholds

  • Semjachik: days with a maximum temperature at or below 0 C (32 F) in 68 years, most in 1998 with 142.
  • Semjachik: nights with a minimum temperature at or below 0 C (32 F) in 68 years, most in 1977 with 214.
  • Semjachik: nights with a minimum temperature at or below -10 C (14 F) in 68 years, most in 1952 with 68.
  • Semjachik: days with 10 mm (0.39 in) or more of precipitation in 68 years, most in 1999 with 65.
  • 10 fixed thresholds have at least one qualifying day at Semjachik.
7 years with a qualifying day
Days at or above 30 C (86 F) per year at Semjachik Days per year at Semjachik with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 3 in 1989. 01231946: 11959: 21988: 21989: 31998: 11999: 12012: 11946195919881989199819992012
Days per year at Semjachik with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 3 in 1989.
Days at or above 30 C (86 F) per year at Semjachik
YearDaysDecade average
194611
195922
198822.5
198932.5
199811
199911
201211
First to last qualifying date each year at Semjachik For each year, a bar from the first to the last day at Semjachik meeting 30 C (86 F). 1946: 10 August 1946 to 10 August 19461959: 17 July 1959 to 20 July 19591988: 28 July 1988 to 13 August 19881989: 26 July 1989 to 29 July 19891998: 23 June 1998 to 23 June 19981999: 20 July 1999 to 20 July 19992012: 2 July 2012 to 2 July 20121946195919881989199819992012JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Semjachik meeting 30 C (86 F).
First to last qualifying date each year at Semjachik
YearFirst dateLast date
19461946-08-101946-08-10
19591959-07-171959-07-20
19881988-07-281988-08-13
19891989-07-261989-07-29
19981998-06-231998-06-23
19991999-07-201999-07-20
20122012-07-022012-07-02

Every Fixed Threshold

Fixed thresholds at Semjachik
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days7319891
90 F (32.2 C): Days3119891
0 C (32 F): Ice days (max68142199866
0 C (32 F): Frost days (min68214197790
-10 C (14 F): Days with min686819528
-20 C (-4 F): Days with min8519543
10 mm (0.39 in): Days with 10 mm or more rain6865199926
25 mm (0.98 in): Days with 25 mm or more rain682219768
50 mm (1.97 in): Days with 50 mm or more rain53619814
100 mm (3.94 in): Days with 100 mm or more rain11119421

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1946.

Download the Data

  • Data for Semjachik 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).