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Built 2026-10-19 (19 October 2026)

Hellero Threshold Days by Year (SWE00138312)

3 fixed thresholds counted per year at Hellero (SWE00138312): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hellero Thresholds

  • Hellero: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 2010 with 30.
  • Hellero: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1998 with 6.
  • Hellero: days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 1996 with 1.
  • 3 fixed thresholds have at least one qualifying day at Hellero.
35 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hellero Days per year at Hellero with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 2010. 01020301992: 111993: 131994: 121995: 141996: 131997: 131998: 171999: 132000: 212001: 142002: 232003: 192004: 132005: 172006: 102007: 192008: 192009: 132010: 302011: 142012: 182013: 122014: 92015: 212016: 152017: 122018: 112019: 102020: 82021: 262022: 92023: 162024: 142025: 112026: 8199219962000200420082012201620202024
Days per year at Hellero with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 2010.
Days with 10 mm (0.39 in) or more of precipitation per year at Hellero
YearDaysDecade average
19921113.3
19931313.3
19941213.3
19951413.3
19961313.3
19971313.3
19981713.3
19991313.3
20002116.8
20011416.8
20022316.8
20031916.8
20041316.8
20051716.8
20061016.8
20071916.8
20081916.8
20091316.8
20103015.2
20111415.2
20121815.2
20131215.2
2014915.2
20152115.2
20161515.2
20171215.2
20181115.2
20191015.2
2020813.1
20212613.1
2022913.1
20231613.1
20241413.1
20251113.1
2026813.1
First to last qualifying date each year at Hellero For each year, a bar from the first to the last day at Hellero meeting 10 mm (0.39 in). 1992: 15 February 1992 to 11 November 19921993: 13 January 1993 to 26 December 19931994: 20 February 1994 to 30 December 19941995: 22 January 1995 to 17 November 19951996: 16 February 1996 to 18 December 19961997: 13 February 1997 to 31 December 19971998: 23 January 1998 to 13 December 19981999: 4 March 1999 to 14 December 19992000: 13 April 2000 to 28 December 20002001: 6 January 2001 to 29 December 20012002: 26 January 2002 to 28 December 20022003: 28 January 2003 to 28 December 20032004: 19 January 2004 to 27 November 20042005: 13 February 2005 to 29 December 20052006: 20 January 2006 to 11 November 20062007: 6 February 2007 to 31 December 20072008: 1 March 2008 to 11 November 20082009: 27 March 2009 to 25 December 20092010: 1 January 2010 to 30 November 20102011: 3 May 2011 to 17 December 20112012: 6 April 2012 to 23 December 20122013: 12 April 2013 to 8 December 20132014: 9 January 2014 to 5 November 20142015: 10 January 2015 to 27 December 20152016: 6 March 2016 to 5 November 20162017: 7 June 2017 to 11 December 20172018: 2 February 2018 to 13 December 20182019: 27 January 2019 to 13 December 20192020: 25 February 2020 to 29 December 20202021: 1 January 2021 to 5 December 20212022: 18 February 2022 to 21 November 20222023: 4 January 2023 to 21 December 20232024: 14 January 2024 to 10 October 20242025: 1 January 2025 to 5 December 20252026: 3 January 2026 to 18 July 20261992199720022007201220172022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hellero meeting 10 mm (0.39 in).
First to last qualifying date each year at Hellero
YearFirst dateLast date
19921992-02-151992-11-11
19931993-01-131993-12-26
19941994-02-201994-12-30
19951995-01-221995-11-17
19961996-02-161996-12-18
19971997-02-131997-12-31
19981998-01-231998-12-13
19991999-03-041999-12-14
20002000-04-132000-12-28
20012001-01-062001-12-29
20022002-01-262002-12-28
20032003-01-282003-12-28
20042004-01-192004-11-27
20052005-02-132005-12-29
20062006-01-202006-11-11
20072007-02-062007-12-31
20082008-03-012008-11-11
20092009-03-272009-12-25
20102010-01-012010-11-30
20112011-05-032011-12-17
20122012-04-062012-12-23
20132013-04-122013-12-08
20142014-01-092014-11-05
20152015-01-102015-12-27
20162016-03-062016-11-05
20172017-06-072017-12-11
20182018-02-022018-12-13
20192019-01-272019-12-13
20202020-02-252020-12-29
20212021-01-012021-12-05
20222022-02-182022-11-21
20232023-01-042023-12-21
20242024-01-142024-10-10
20252025-01-012025-12-05
20262026-01-032026-07-18

Every Fixed Threshold

Fixed thresholds at Hellero
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain353020108
25 mm (0.98 in): Days with 25 mm or more rain30619981
50 mm (1.97 in): Days with 50 mm or more rain6119961

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1992.

Download the Data

  • Data for Hellero 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).