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

Janiskoski Threshold Days by Year (RSM00022101)

12 fixed thresholds counted per year at Janiskoski (RSM00022101): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Janiskoski Thresholds

  • Janiskoski: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 2016 with 17.
  • Janiskoski: nights with a minimum temperature at or below 0 C (32 F) in 49 years, most in 1993 with 239.
  • Janiskoski: nights with a minimum temperature at or below -10 C (14 F) in 49 years, most in 1981 with 145.
  • Janiskoski: nights with a minimum temperature at or below -20 C (-4 F) in 49 years, most in 1985 with 87.
  • 12 fixed thresholds have at least one qualifying day at Janiskoski.
13 years with a qualifying day
Days at or above 30 C (86 F) per year at Janiskoski Days per year at Janiskoski with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 2018. 02461960: 31961: 11963: 11970: 21974: 11988: 11997: 12000: 12001: 12011: 12013: 12014: 12018: 51960196319741997200120132018
Days per year at Janiskoski with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 2018.
Days at or above 30 C (86 F) per year at Janiskoski
YearDaysDecade average
196031.7
196111.7
196311.7
197021.5
197411.5
198811
199711
200011
200111
201112
201312
201412
201852
First to last qualifying date each year at Janiskoski For each year, a bar from the first to the last day at Janiskoski meeting 30 C (86 F). 1960: 28 July 1960 to 30 July 19601961: 16 July 1961 to 16 July 19611963: 2 August 1963 to 2 August 19631970: 2 July 1970 to 21 July 19701974: 18 June 1974 to 18 June 19741988: 20 July 1988 to 20 July 19881997: 16 July 1997 to 16 July 19972000: 19 July 2000 to 19 July 20002001: 10 July 2001 to 10 July 20012011: 9 July 2011 to 9 July 20112013: 1 June 2013 to 1 June 20132014: 5 August 2014 to 5 August 20142018: 17 July 2018 to 1 August 20181960196319741997200120132018JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Janiskoski meeting 30 C (86 F).
First to last qualifying date each year at Janiskoski
YearFirst dateLast date
19601960-07-281960-07-30
19611961-07-161961-07-16
19631963-08-021963-08-02
19701970-07-021970-07-21
19741974-06-181974-06-18
19881988-07-201988-07-20
19971997-07-161997-07-16
20002000-07-192000-07-19
20012001-07-102001-07-10
20112011-07-092011-07-09
20132013-06-012013-06-01
20142014-08-052014-08-05
20182018-07-172018-08-01

Every Fixed Threshold

Fixed thresholds at Janiskoski
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days13520185
90 F (32.2 C): Days2120001
0 C (32 F): Ice days (max481561970136
0 C (32 F): Frost days (min492391993218
-10 C (14 F): Days with min491451981109
-20 C (-4 F): Days with min4987198553
-30 C (-22 F): Days with min4937198511
-40 C (-40 F): Days with min9619851
20 C (68 F): Tropical nights (min2119601
10 mm (0.39 in): Days with 10 mm or more rain5117201616
25 mm (0.98 in): Days with 25 mm or more rain31419921
50 mm (1.97 in): Days with 50 mm or more rain2119881

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

  • Data for Janiskoski 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).