Daily records
Page built 2026-10-19
Data as of 2026-10-12
Search
Built 2026-10-19 (19 October 2026)

Formerum Threshold Days by Year (NLE00109082)

3 fixed thresholds counted per year at Formerum (NLE00109082): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Formerum Thresholds

  • Formerum: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 2023 with 41.
  • Formerum: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 2008 with 8.
  • Formerum: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1995 with 1.
  • 3 fixed thresholds have at least one qualifying day at Formerum.
41 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Formerum Days per year at Formerum with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 2023. 02040601986: 241987: 231988: 201989: 91990: 181991: 131992: 261993: 221994: 291995: 221996: 201997: 151998: 241999: 212000: 282001: 332002: 292003: 232004: 242005: 142006: 172007: 222008: 232009: 202010: 232011: 142012: 322013: 152014: 182015: 272016: 172017: 252018: 142019: 262020: 262021: 182022: 322023: 412024: 292025: 252026: 4198619911996200120062011201620212026
Days per year at Formerum with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 2023.
Days with 10 mm (0.39 in) or more of precipitation per year at Formerum
YearDaysDecade average
19862419
19872319
19882019
1989919
19901821
19911321
19922621
19932221
19942921
19952221
19962021
19971521
19982421
19992121
20002823.3
20013323.3
20022923.3
20032323.3
20042423.3
20051423.3
20061723.3
20072223.3
20082323.3
20092023.3
20102321.1
20111421.1
20123221.1
20131521.1
20141821.1
20152721.1
20161721.1
20172521.1
20181421.1
20192621.1
20202625
20211825
20223225
20234125
20242925
20252525
2026425
First to last qualifying date each year at Formerum For each year, a bar from the first to the last day at Formerum meeting 10 mm (0.39 in). 1986: 2 January 1986 to 30 December 19861987: 1 January 1987 to 16 December 19871988: 5 January 1988 to 6 December 19881989: 7 March 1989 to 20 December 19891990: 23 January 1990 to 26 December 19901991: 1 January 1991 to 17 December 19911992: 5 January 1992 to 11 December 19921993: 10 January 1993 to 29 December 19931994: 22 January 1994 to 29 December 19941995: 21 January 1995 to 22 December 19951996: 12 February 1996 to 19 December 19961997: 17 February 1997 to 11 December 19971998: 3 January 1998 to 25 December 19981999: 6 February 1999 to 24 December 19992000: 3 January 2000 to 11 December 20002001: 3 January 2001 to 5 December 20012002: 15 January 2002 to 29 December 20022003: 1 January 2003 to 27 December 20032004: 11 January 2004 to 18 December 20042005: 1 March 2005 to 4 December 20052006: 25 March 2006 to 8 December 20062007: 10 January 2007 to 6 December 20072008: 15 January 2008 to 10 December 20082009: 4 January 2009 to 27 December 20092010: 31 January 2010 to 16 December 20102011: 5 June 2011 to 23 December 20112012: 3 January 2012 to 24 December 20122013: 29 January 2013 to 23 December 20132014: 25 January 2014 to 11 December 20142015: 12 January 2015 to 12 December 20152016: 15 January 2016 to 10 December 20162017: 12 January 2017 to 27 December 20172018: 2 January 2018 to 21 December 20182019: 10 February 2019 to 27 November 20192020: 28 January 2020 to 29 December 20202021: 18 January 2021 to 6 December 20212022: 8 January 2022 to 31 December 20222023: 3 January 2023 to 31 December 20232024: 1 January 2024 to 18 December 20242025: 1 January 2025 to 18 November 20252026: 7 January 2026 to 30 July 20261986199219982004201020162022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Formerum meeting 10 mm (0.39 in).
First to last qualifying date each year at Formerum
YearFirst dateLast date
19861986-01-021986-12-30
19871987-01-011987-12-16
19881988-01-051988-12-06
19891989-03-071989-12-20
19901990-01-231990-12-26
19911991-01-011991-12-17
19921992-01-051992-12-11
19931993-01-101993-12-29
19941994-01-221994-12-29
19951995-01-211995-12-22
19961996-02-121996-12-19
19971997-02-171997-12-11
19981998-01-031998-12-25
19991999-02-061999-12-24
20002000-01-032000-12-11
20012001-01-032001-12-05
20022002-01-152002-12-29
20032003-01-012003-12-27
20042004-01-112004-12-18
20052005-03-012005-12-04
20062006-03-252006-12-08
20072007-01-102007-12-06
20082008-01-152008-12-10
20092009-01-042009-12-27
20102010-01-312010-12-16
20112011-06-052011-12-23
20122012-01-032012-12-24
20132013-01-292013-12-23
20142014-01-252014-12-11
20152015-01-122015-12-12
20162016-01-152016-12-10
20172017-01-122017-12-27
20182018-01-022018-12-21
20192019-02-102019-11-27
20202020-01-282020-12-29
20212021-01-182021-12-06
20222022-01-082022-12-31
20232023-01-032023-12-31
20242024-01-012024-12-18
20252025-01-012025-11-18
20262026-01-072026-07-30

Every Fixed Threshold

Fixed thresholds at Formerum
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain414120234
25 mm (0.98 in): Days with 25 mm or more rain38820083
50 mm (1.97 in): Days with 50 mm or more rain5119951

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1986.

Download the Data

  • Data for Formerum 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 (2026-10-12).