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

Ruokolahti Kotaniemi Threshold Days by Year (FIE00143236)

11 fixed thresholds counted per year at Ruokolahti Kotaniemi (FIE00143236): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ruokolahti Kotaniemi Thresholds

  • Ruokolahti Kotaniemi: days with a maximum temperature at or below 0 C (32 F) in 33 years, most in 1969 with 119.
  • Ruokolahti Kotaniemi: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1976 with 210.
  • Ruokolahti Kotaniemi: nights with a minimum temperature at or below -10 C (14 F) in 33 years, most in 1987 with 94.
  • Ruokolahti Kotaniemi: nights with a minimum temperature at or below -20 C (-4 F) in 33 years, most in 1985 with 44.
  • 11 fixed thresholds have at least one qualifying day at Ruokolahti Kotaniemi.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Ruokolahti Kotaniemi Days per year at Ruokolahti Kotaniemi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1972. 02461970: 11972: 51973: 11988: 41994: 419701972197319881994
Days per year at Ruokolahti Kotaniemi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1972.
Days at or above 30 C (86 F) per year at Ruokolahti Kotaniemi
YearDaysDecade average
197012.3
197252.3
197312.3
198844
199444
First to last qualifying date each year at Ruokolahti Kotaniemi For each year, a bar from the first to the last day at Ruokolahti Kotaniemi meeting 30 C (86 F). 1970: 19 July 1970 to 19 July 19701972: 27 June 1972 to 8 July 19721973: 6 July 1973 to 6 July 19731988: 27 June 1988 to 18 July 19881994: 14 July 1994 to 31 July 199419701972197319881994JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ruokolahti Kotaniemi meeting 30 C (86 F).
First to last qualifying date each year at Ruokolahti Kotaniemi
YearFirst dateLast date
19701970-07-191970-07-19
19721972-06-271972-07-08
19731973-07-061973-07-06
19881988-06-271988-07-18
19941994-07-141994-07-31

Every Fixed Threshold

Fixed thresholds at Ruokolahti Kotaniemi
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5519724
90 F (32.2 C): Days1119721
0 C (32 F): Ice days (max33119196978
0 C (32 F): Frost days (min332101976161
-10 C (14 F): Days with min3394198749
-20 C (-4 F): Days with min334419858
-30 C (-22 F): Days with min191119872
20 C (68 F): Tropical nights (min2319721
10 mm (0.39 in): Days with 10 mm or more rain331919815
25 mm (0.98 in): Days with 25 mm or more rain19219681
50 mm (1.97 in): Days with 50 mm or more rain1119861

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1970.

Download the Data

  • Data for Ruokolahti Kotaniemi 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).