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Built 2026-10-19 (19 October 2026)

Decatur 1 N Threshold Days by Year (USC00122096)

16 fixed thresholds counted per year at Decatur 1 N (USC00122096): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Decatur 1 N Thresholds

  • Decatur 1 N: days with 10 mm (0.39 in) or more of precipitation in 94 years, most in 1948 with 47.
  • Decatur 1 N: days with 25 mm (0.98 in) or more of precipitation in 94 years, most in 2017 with 17.
  • Decatur 1 N: days with 50 mm (1.97 in) or more of precipitation in 60 years, most in 1950 with 6.
  • Decatur 1 N: days with 10 cm (3.9 in) or more of snowfall in 43 years, most in 2011 with 5.
  • 16 fixed thresholds have at least one qualifying day at Decatur 1 N.
21 years with a qualifying day
Days at or above 30 C (86 F) per year at Decatur 1 N Days per year at Decatur 1 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 2007. 02040602006: 252007: 592008: 292009: 222010: 562011: 572012: 592013: 262014: 182015: 252016: 562017: 322018: 482019: 392020: 492021: 492022: 372023: 322024: 452025: 582026: 372006200920122015201820212024
Days per year at Decatur 1 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 2007.
Days at or above 30 C (86 F) per year at Decatur 1 N
YearDaysDecade average
20062533.8
20075933.8
20082933.8
20092233.8
20105641.6
20115741.6
20125941.6
20132641.6
20141841.6
20152541.6
20165641.6
20173241.6
20184841.6
20193941.6
20204943.9
20214943.9
20223743.9
20233243.9
20244543.9
20255843.9
20263743.9
First to last qualifying date each year at Decatur 1 N For each year, a bar from the first to the last day at Decatur 1 N meeting 30 C (86 F). 2006: 29 May 2006 to 7 August 20062007: 16 May 2007 to 9 October 20072008: 6 June 2008 to 14 September 20082009: 24 May 2009 to 20 August 20092010: 24 May 2010 to 11 October 20102011: 12 May 2011 to 4 September 20112012: 22 March 2012 to 7 September 20122013: 20 May 2013 to 4 October 20132014: 9 May 2014 to 6 September 20142015: 8 May 2015 to 9 September 20152016: 25 May 2016 to 24 September 20162017: 17 May 2017 to 27 September 20172018: 15 May 2018 to 10 October 20182019: 19 May 2019 to 2 October 20192020: 25 May 2020 to 9 September 20202021: 21 May 2021 to 30 September 20212022: 12 May 2022 to 22 September 20222023: 30 May 2023 to 5 October 20232024: 20 May 2024 to 22 September 20242025: 16 May 2025 to 5 October 20252026: 18 May 2026 to 4 September 20262006200920122015201820212024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Decatur 1 N meeting 30 C (86 F).
First to last qualifying date each year at Decatur 1 N
YearFirst dateLast date
20062006-05-292006-08-07
20072007-05-162007-10-09
20082008-06-062008-09-14
20092009-05-242009-08-20
20102010-05-242010-10-11
20112011-05-122011-09-04
20122012-03-222012-09-07
20132013-05-202013-10-04
20142014-05-092014-09-06
20152015-05-082015-09-09
20162016-05-252016-09-24
20172017-05-172017-09-27
20182018-05-152018-10-10
20192019-05-192019-10-02
20202020-05-252020-09-09
20212021-05-212021-09-30
20222022-05-122022-09-22
20232023-05-302023-10-05
20242024-05-202024-09-22
20252025-05-162025-10-05
20262026-05-182026-09-04

Every Fixed Threshold

Fixed thresholds at Decatur 1 N
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2159200737
35 C (95 F): Days111220113
90 F (32.2 C): Days2139201215
100 F (37.8 C): Days2320123
0 C (32 F): Ice days (max2165201031
0 C (32 F): Frost days (min21146200872
-10 C (14 F): Days with min2154201426
-20 C (-4 F): Days with min151920143
20 C (68 F): Tropical nights (min2129201923
25 C (77 F): Days with min6220111
10 mm (0.39 in): Days with 10 mm or more rain9447194824
25 mm (0.98 in): Days with 25 mm or more rain941720178
50 mm (1.97 in): Days with 50 mm or more rain60619501
100 mm (3.94 in): Days with 100 mm or more rain6219431
10 cm (3.9 in): Days with 10 cm or more snowfall43520111
25 cm (9.8 in): Days with 25 cm or more snowfall4220141

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2006.

Download the Data

  • Data for Decatur 1 N 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).