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Built 2026-10-19 (19 October 2026)

Hecla 1E Threshold Days by Year (USC00484442)

15 fixed thresholds counted per year at Hecla 1E (USC00484442): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hecla 1E Thresholds

  • Hecla 1E: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1983 with 21.
  • Hecla 1E: days with 10 cm (3.9 in) or more of snowfall in 40 years, most in 1983 with 11.
  • Hecla 1E: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1997 with 4.
  • Hecla 1E: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 2012 with 36.
  • 15 fixed thresholds have at least one qualifying day at Hecla 1E.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Hecla 1E Days per year at Hecla 1E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 2012. 0102030401995: 171996: 81997: 41998: 161999: 52000: 282001: 242002: 332003: 312004: 152005: 262006: 252007: 272008: 282010: 152011: 332012: 362013: 262014: 72016: 242017: 152018: 202022: 242024: 252025: 192026: 37199519982001200420072011201420182025
Days per year at Hecla 1E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 2012.
Days at or above 30 C (86 F) per year at Hecla 1E
YearDaysDecade average
19951710
1996810
1997410
19981610
1999510
20002826.3
20012426.3
20023326.3
20033126.3
20041526.3
20052626.3
20062526.3
20072726.3
20082826.3
20101522
20113322
20123622
20132622
2014722
20162422
20171522
20182022
20222426.3
20242526.3
20251926.3
20263726.3
First to last qualifying date each year at Hecla 1E For each year, a bar from the first to the last day at Hecla 1E meeting 30 C (86 F). 1995: 9 July 1995 to 4 September 19951996: 2 July 1996 to 13 August 19961997: 15 July 1997 to 23 July 19971998: 13 July 1998 to 6 September 19981999: 3 July 1999 to 24 August 19992000: 29 May 2000 to 17 September 20002001: 10 June 2001 to 27 August 20012002: 1 June 2002 to 5 September 20022003: 1 July 2003 to 25 August 20032004: 6 June 2004 to 9 August 20042005: 2 July 2005 to 3 September 20052006: 6 June 2006 to 23 August 20062007: 17 June 2007 to 27 August 20072008: 30 June 2008 to 4 August 20082010: 25 June 2010 to 28 September 20102011: 28 June 2011 to 1 September 20112012: 4 June 2012 to 29 August 20122013: 10 June 2013 to 6 September 20132014: 5 July 2014 to 24 July 20142016: 9 June 2016 to 10 August 20162017: 20 June 2017 to 3 September 20172018: 5 June 2018 to 21 July 20182022: 11 June 2022 to 11 August 20222024: 21 June 2024 to 3 September 20242025: 20 June 2025 to 21 August 20252026: 14 June 2026 to 28 August 20261995199920032007201220172025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hecla 1E meeting 30 C (86 F).
First to last qualifying date each year at Hecla 1E
YearFirst dateLast date
19951995-07-091995-09-04
19961996-07-021996-08-13
19971997-07-151997-07-23
19981998-07-131998-09-06
19991999-07-031999-08-24
20002000-05-292000-09-17
20012001-06-102001-08-27
20022002-06-012002-09-05
20032003-07-012003-08-25
20042004-06-062004-08-09
20052005-07-022005-09-03
20062006-06-062006-08-23
20072007-06-172007-08-27
20082008-06-302008-08-04
20102010-06-252010-09-28
20112011-06-282011-09-01
20122012-06-042012-08-29
20132013-06-102013-09-06
20142014-07-052014-07-24
20162016-06-092016-08-10
20172017-06-202017-09-03
20182018-06-052018-07-21
20222022-06-112022-08-11
20242024-06-212024-09-03
20252025-06-202025-08-21
20262026-06-142026-08-28

Every Fixed Threshold

Fixed thresholds at Hecla 1E
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2636201237
35 C (95 F): Days4420053
90 F (32.2 C): Days2311200319
0 C (32 F): Ice days (max264319975
0 C (32 F): Frost days (min26202201182
-10 C (14 F): Days with min2669200215
-20 C (-4 F): Days with min251720143
-30 C (-22 F): Days with min9220111
10 mm (0.39 in): Days with 10 mm or more rain412119836
25 mm (0.98 in): Days with 25 mm or more rain35419972
50 mm (1.97 in): Days with 50 mm or more rain8219911
100 mm (3.94 in): Days with 100 mm or more rain1119971
10 cm (3.9 in): Days with 10 cm or more snowfall401119832
25 cm (9.8 in): Days with 25 cm or more snowfall15319831
50 cm (19.7 in): Days with 50 cm or more snowfall2119901

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1995.

Download the Data

  • Data for Hecla 1E 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).