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Data as of 2026-10-15
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Built 2026-10-19 (19 October 2026)

Viitasaari Haapaniemi Threshold Days by Year (FIE00144557)

11 fixed thresholds counted per year at Viitasaari Haapaniemi (FIE00144557): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Viitasaari Haapaniemi Thresholds

  • Viitasaari Haapaniemi: days with a maximum temperature at or below 0 C (32 F) in 56 years, most in 2010 with 125.
  • Viitasaari Haapaniemi: nights with a minimum temperature at or below 0 C (32 F) in 56 years, most in 1976 with 196.
  • Viitasaari Haapaniemi: nights with a minimum temperature at or below -10 C (14 F) in 56 years, most in 2010 with 95.
  • Viitasaari Haapaniemi: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1981 with 22.
  • 11 fixed thresholds have at least one qualifying day at Viitasaari Haapaniemi.
13 years with a qualifying day
Days at or above 30 C (86 F) per year at Viitasaari Haapaniemi Days per year at Viitasaari Haapaniemi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 2025. 024681972: 11988: 21994: 12006: 12010: 42013: 12014: 42018: 72019: 12020: 22021: 42024: 12025: 81972199420102014201920212025
Days per year at Viitasaari Haapaniemi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 2025.
Days at or above 30 C (86 F) per year at Viitasaari Haapaniemi
YearDaysDecade average
197211
198822
199411
200611
201043.4
201313.4
201443.4
201873.4
201913.4
202023.8
202143.8
202413.8
202583.8
First to last qualifying date each year at Viitasaari Haapaniemi For each year, a bar from the first to the last day at Viitasaari Haapaniemi meeting 30 C (86 F). 1972: 1 July 1972 to 1 July 19721988: 28 June 1988 to 18 July 19881994: 28 July 1994 to 28 July 19942006: 8 July 2006 to 8 July 20062010: 12 July 2010 to 29 July 20102013: 27 June 2013 to 27 June 20132014: 23 July 2014 to 27 July 20142018: 16 July 2018 to 10 August 20182019: 27 July 2019 to 27 July 20192020: 25 June 2020 to 26 June 20202021: 21 June 2021 to 15 July 20212024: 28 June 2024 to 28 June 20242025: 13 July 2025 to 31 July 20251972199420102014201920212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Viitasaari Haapaniemi meeting 30 C (86 F).
First to last qualifying date each year at Viitasaari Haapaniemi
YearFirst dateLast date
19721972-07-011972-07-01
19881988-06-281988-07-18
19941994-07-281994-07-28
20062006-07-082006-07-08
20102010-07-122010-07-29
20132013-06-272013-06-27
20142014-07-232014-07-27
20182018-07-162018-08-10
20192019-07-272019-07-27
20202020-06-252020-06-26
20212021-06-212021-07-15
20242024-06-282024-06-28
20252025-07-132025-07-31

Every Fixed Threshold

Fixed thresholds at Viitasaari Haapaniemi
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days13820258
90 F (32.2 C): Days2220101
0 C (32 F): Ice days (max56125201055
0 C (32 F): Frost days (min56196197698
-10 C (14 F): Days with min5695201047
-20 C (-4 F): Days with min5451197817
-30 C (-22 F): Days with min241019784
20 C (68 F): Tropical nights (min11520102
10 mm (0.39 in): Days with 10 mm or more rain5622198111
25 mm (0.98 in): Days with 25 mm or more rain39419802
50 mm (1.97 in): Days with 50 mm or more rain4119801

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1972.

Download the Data

  • Data for Viitasaari Haapaniemi 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 (2026-10-15).