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Built 2026-10-19 (19 October 2026)

Howells Threshold Days by Year (USC00254035)

17 fixed thresholds counted per year at Howells (USC00254035): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Howells Thresholds

  • Howells: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 1984 with 35.
  • Howells: days with 25 mm (0.98 in) or more of precipitation in 49 years, most in 1984 with 13.
  • Howells: days with 10 cm (3.9 in) or more of snowfall in 38 years, most in 1983 with 7.
  • Howells: days with 50 mm (1.97 in) or more of precipitation in 36 years, most in 1983 with 4.
  • 17 fixed thresholds have at least one qualifying day at Howells.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Howells Days per year at Howells with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 87 in 2022. 02550751001998: 701999: 402000: 482001: 522002: 632003: 442004: 282005: 542006: 472007: 452008: 202009: 212010: 412011: 352012: 712013: 482014: 242015: 402016: 552017: 552021: 782022: 872023: 712024: 642025: 772026: 33199820012004200720102013201620222025
Days per year at Howells with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 87 in 2022.
Days at or above 30 C (86 F) per year at Howells
YearDaysDecade average
19987055
19994055
20004842.2
20015242.2
20026342.2
20034442.2
20042842.2
20055442.2
20064742.2
20074542.2
20082042.2
20092142.2
20104146.1
20113546.1
20127146.1
20134846.1
20142446.1
20154046.1
20165546.1
20175546.1
20217868.3
20228768.3
20237168.3
20246468.3
20257768.3
20263368.3
First to last qualifying date each year at Howells For each year, a bar from the first to the last day at Howells meeting 30 C (86 F). 1998: 5 May 1998 to 30 September 19981999: 5 June 1999 to 8 September 19992000: 12 May 2000 to 2 October 20002001: 2 May 2001 to 3 October 20012002: 16 April 2002 to 10 September 20022003: 2 April 2003 to 20 October 20032004: 17 April 2004 to 20 September 20042005: 22 May 2005 to 22 September 20052006: 14 April 2006 to 4 October 20062007: 30 April 2007 to 21 September 20072008: 8 June 2008 to 2 September 20082009: 24 April 2009 to 15 August 20092010: 23 May 2010 to 9 October 20102011: 10 May 2011 to 5 October 20112012: 1 April 2012 to 20 September 20122013: 13 May 2013 to 27 September 20132014: 7 May 2014 to 20 September 20142015: 16 March 2015 to 12 October 20152016: 6 May 2016 to 24 September 20162017: 8 May 2017 to 24 September 20172021: 26 April 2021 to 29 September 20212022: 12 April 2022 to 23 October 20222023: 12 April 2023 to 3 October 20232024: 17 May 2024 to 11 October 20242025: 10 May 2025 to 5 October 20252026: 21 March 2026 to 31 August 20261998200220062010201420212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Howells meeting 30 C (86 F).
First to last qualifying date each year at Howells
YearFirst dateLast date
19981998-05-051998-09-30
19991999-06-051999-09-08
20002000-05-122000-10-02
20012001-05-022001-10-03
20022002-04-162002-09-10
20032003-04-022003-10-20
20042004-04-172004-09-20
20052005-05-222005-09-22
20062006-04-142006-10-04
20072007-04-302007-09-21
20082008-06-082008-09-02
20092009-04-242009-08-15
20102010-05-232010-10-09
20112011-05-102011-10-05
20122012-04-012012-09-20
20132013-05-132013-09-27
20142014-05-072014-09-20
20152015-03-162015-10-12
20162016-05-062016-09-24
20172017-05-082017-09-24
20212021-04-262021-09-29
20222022-04-122022-10-23
20232023-04-122023-10-03
20242024-05-172024-10-11
20252025-05-102025-10-05
20262026-03-212026-08-31

Every Fixed Threshold

Fixed thresholds at Howells
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2687202233
35 C (95 F): Days212220123
90 F (32.2 C): Days2655202214
100 F (37.8 C): Days7320122
0 C (32 F): Ice days (max2680201018
0 C (32 F): Frost days (min26169199878
-10 C (14 F): Days with min2670200024
-20 C (-4 F): Days with min251720144
-30 C (-22 F): Days with min1220212
20 C (68 F): Tropical nights (min2632201614
25 C (77 F): Days with min4220161
10 mm (0.39 in): Days with 10 mm or more rain4935198415
25 mm (0.98 in): Days with 25 mm or more rain491319846
50 mm (1.97 in): Days with 50 mm or more rain36419833
100 mm (3.94 in): Days with 100 mm or more rain7220162
10 cm (3.9 in): Days with 10 cm or more snowfall38719831
25 cm (9.8 in): Days with 25 cm or more snowfall6119831

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 Howells 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).