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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Heino Threshold Days by Year (NLE00152479)

11 fixed thresholds counted per year at Heino (NLE00152479): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Heino Thresholds

  • Heino: nights with a minimum temperature at or below 0 C (32 F) in 35 years, most in 1996 with 106.
  • Heino: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 2019 with 12.
  • Heino: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 2023 with 35.
  • Heino: days with a maximum temperature at or below 0 C (32 F) in 32 years, most in 2010 with 41.
  • 11 fixed thresholds have at least one qualifying day at Heino.
33 years with a qualifying day
Days at or above 30 C (86 F) per year at Heino Days per year at Heino with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 12 in 2019. 0510151991: 41992: 31994: 71995: 61996: 31997: 52000: 22001: 42002: 42003: 72004: 42005: 42006: 102007: 12008: 32009: 32010: 52011: 12012: 32013: 72014: 22015: 62016: 52017: 42018: 112019: 122020: 112021: 22022: 122023: 32024: 42025: 72026: 11199119962002200620102014201820222026
Days per year at Heino with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 12 in 2019.
Days at or above 30 C (86 F) per year at Heino
YearDaysDecade average
199144.7
199234.7
199474.7
199564.7
199634.7
199754.7
200024.2
200144.2
200244.2
200374.2
200444.2
200544.2
2006104.2
200714.2
200834.2
200934.2
201055.6
201115.6
201235.6
201375.6
201425.6
201565.6
201655.6
201745.6
2018115.6
2019125.6
2020117.1
202127.1
2022127.1
202337.1
202447.1
202577.1
2026117.1
First to last qualifying date each year at Heino For each year, a bar from the first to the last day at Heino meeting 30 C (86 F). 1991: 6 July 1991 to 6 August 19911992: 30 June 1992 to 9 August 19921994: 12 July 1994 to 4 August 19941995: 10 July 1995 to 19 August 19951996: 6 June 1996 to 8 June 19961997: 10 August 1997 to 25 August 19972000: 19 June 2000 to 20 June 20002001: 6 July 2001 to 26 August 20012002: 17 June 2002 to 30 July 20022003: 16 July 2003 to 12 August 20032004: 5 August 2004 to 9 August 20042005: 27 May 2005 to 24 June 20052006: 12 June 2006 to 26 July 20062007: 8 June 2007 to 8 June 20072008: 2 July 2008 to 31 July 20082009: 3 July 2009 to 20 August 20092010: 2 July 2010 to 20 July 20102011: 28 June 2011 to 28 June 20112012: 23 May 2012 to 19 August 20122013: 18 June 2013 to 5 September 20132014: 18 July 2014 to 19 July 20142015: 5 June 2015 to 6 August 20152016: 20 July 2016 to 14 September 20162017: 27 May 2017 to 22 June 20172018: 29 May 2018 to 7 August 20182019: 2 June 2019 to 27 August 20192020: 31 July 2020 to 15 September 20202021: 17 June 2021 to 18 June 20212022: 23 June 2022 to 5 September 20222023: 25 June 2023 to 9 July 20232024: 27 June 2024 to 2 September 20242025: 13 June 2025 to 14 August 20252026: 26 May 2026 to 14 August 20261991199720042009201420192024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Heino meeting 30 C (86 F).
First to last qualifying date each year at Heino
YearFirst dateLast date
19911991-07-061991-08-06
19921992-06-301992-08-09
19941994-07-121994-08-04
19951995-07-101995-08-19
19961996-06-061996-06-08
19971997-08-101997-08-25
20002000-06-192000-06-20
20012001-07-062001-08-26
20022002-06-172002-07-30
20032003-07-162003-08-12
20042004-08-052004-08-09
20052005-05-272005-06-24
20062006-06-122006-07-26
20072007-06-082007-06-08
20082008-07-022008-07-31
20092009-07-032009-08-20
20102010-07-022010-07-20
20112011-06-282011-06-28
20122012-05-232012-08-19
20132013-06-182013-09-05
20142014-07-182014-07-19
20152015-06-052015-08-06
20162016-07-202016-09-14
20172017-05-272017-06-22
20182018-05-292018-08-07
20192019-06-022019-08-27
20202020-07-312020-09-15
20212021-06-172021-06-18
20222022-06-232022-09-05
20232023-06-252023-07-09
20242024-06-272024-09-02
20252025-06-132025-08-14
20262026-05-262026-08-14

Every Fixed Threshold

Fixed thresholds at Heino
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3312201911
35 C (95 F): Days7320181
90 F (32.2 C): Days26620189
100 F (37.8 C): Days1120191
0 C (32 F): Ice days (max324120104
0 C (32 F): Frost days (min35106199646
-10 C (14 F): Days with min161319966
20 C (68 F): Tropical nights (min10n/a1
10 mm (0.39 in): Days with 10 mm or more rain333520237
25 mm (0.98 in): Days with 25 mm or more rain29420042
50 mm (1.97 in): Days with 50 mm or more rain1120111

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1991.

Download the Data

  • Data for Heino 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 (2026-10-17).