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Built 2026-10-19 (19 October 2026)

Ruokolahti Kotaniemi Siitonen Threshold Days by Year (FIE00143281)

3 fixed thresholds counted per year at Ruokolahti Kotaniemi Siitonen (FIE00143281): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ruokolahti Kotaniemi Siitonen Thresholds

  • Ruokolahti Kotaniemi Siitonen: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1998 with 23.
  • Ruokolahti Kotaniemi Siitonen: days with 25 mm (0.98 in) or more of precipitation in 21 years, most in 2014 with 4.
  • Ruokolahti Kotaniemi Siitonen: days with 50 mm (1.97 in) or more of precipitation in 4 years, most in 2009 with 1.
  • 3 fixed thresholds have at least one qualifying day at Ruokolahti Kotaniemi Siitonen.
28 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ruokolahti Kotaniemi Siitonen Days per year at Ruokolahti Kotaniemi Siitonen with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1998. 01020301998: 231999: 72000: 122001: 172002: 112003: 142004: 152005: 182006: 102007: 172008: 182009: 102010: 172011: 132012: 152013: 172014: 162015: 142016: 182017: 162018: 142019: 122020: 122021: 102022: 72023: 132024: 172025: 161998200120042007201020132016201920222025
Days per year at Ruokolahti Kotaniemi Siitonen with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1998.
Days with 10 mm (0.39 in) or more of precipitation per year at Ruokolahti Kotaniemi Siitonen
YearDaysDecade average
19982315
1999715
20001214.2
20011714.2
20021114.2
20031414.2
20041514.2
20051814.2
20061014.2
20071714.2
20081814.2
20091014.2
20101715.2
20111315.2
20121515.2
20131715.2
20141615.2
20151415.2
20161815.2
20171615.2
20181415.2
20191215.2
20201212.5
20211012.5
2022712.5
20231312.5
20241712.5
20251612.5
First to last qualifying date each year at Ruokolahti Kotaniemi Siitonen For each year, a bar from the first to the last day at Ruokolahti Kotaniemi Siitonen meeting 10 mm (0.39 in). 1998: 10 January 1998 to 7 December 19981999: 4 February 1999 to 18 December 19992000: 3 March 2000 to 30 November 20002001: 2 March 2001 to 19 December 20012002: 24 January 2002 to 26 November 20022003: 6 February 2003 to 21 December 20032004: 20 March 2004 to 30 December 20042005: 8 May 2005 to 11 December 20052006: 1 June 2006 to 2 December 20062007: 2 February 2007 to 8 October 20072008: 19 January 2008 to 11 November 20082009: 4 June 2009 to 26 December 20092010: 1 February 2010 to 18 November 20102011: 19 June 2011 to 27 November 20112012: 2 June 2012 to 18 October 20122013: 18 May 2013 to 12 November 20132014: 19 March 2014 to 30 December 20142015: 2 January 2015 to 18 December 20152016: 26 January 2016 to 4 December 20162017: 1 April 2017 to 20 December 20172018: 2 April 2018 to 18 October 20182019: 19 February 2019 to 18 December 20192020: 16 February 2020 to 19 November 20202021: 20 February 2021 to 22 October 20212022: 14 February 2022 to 14 November 20222023: 27 April 2023 to 31 October 20232024: 16 February 2024 to 19 December 20242025: 8 January 2025 to 10 December 20251998200220062010201420182022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ruokolahti Kotaniemi Siitonen meeting 10 mm (0.39 in).
First to last qualifying date each year at Ruokolahti Kotaniemi Siitonen
YearFirst dateLast date
19981998-01-101998-12-07
19991999-02-041999-12-18
20002000-03-032000-11-30
20012001-03-022001-12-19
20022002-01-242002-11-26
20032003-02-062003-12-21
20042004-03-202004-12-30
20052005-05-082005-12-11
20062006-06-012006-12-02
20072007-02-022007-10-08
20082008-01-192008-11-11
20092009-06-042009-12-26
20102010-02-012010-11-18
20112011-06-192011-11-27
20122012-06-022012-10-18
20132013-05-182013-11-12
20142014-03-192014-12-30
20152015-01-022015-12-18
20162016-01-262016-12-04
20172017-04-012017-12-20
20182018-04-022018-10-18
20192019-02-192019-12-18
20202020-02-162020-11-19
20212021-02-202021-10-22
20222022-02-142022-11-14
20232023-04-272023-10-31
20242024-02-162024-12-19
20252025-01-082025-12-10

Every Fixed Threshold

Fixed thresholds at Ruokolahti Kotaniemi Siitonen
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2823199816
25 mm (0.98 in): Days with 25 mm or more rain21420143
50 mm (1.97 in): Days with 50 mm or more rain4120091

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1998.

Download the Data

  • Data for Ruokolahti Kotaniemi Siitonen 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).