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Built 2026-10-19 (19 October 2026)

Chillicothe 2S Threshold Days by Year (USC00231580)

18 fixed thresholds counted per year at Chillicothe 2S (USC00231580): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chillicothe 2S Thresholds

  • Chillicothe 2S: days with 10 mm (0.39 in) or more of precipitation in 108 years, most in 1973 with 46.
  • Chillicothe 2S: days with 25 mm (0.98 in) or more of precipitation in 108 years, most in 2019 with 21.
  • Chillicothe 2S: days with 50 mm (1.97 in) or more of precipitation in 98 years, most in 2001 with 7.
  • Chillicothe 2S: days with a maximum temperature at or above 30 C (86 F) in 45 years, most in 2012 with 99.
  • 18 fixed thresholds have at least one qualifying day at Chillicothe 2S.
45 years with a qualifying day
Days at or above 30 C (86 F) per year at Chillicothe 2S Days per year at Chillicothe 2S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 99 in 2012. 02550751001981: 431983: 811984: 661985: 531986: 651987: 731988: 821989: 531990: 541991: 731992: 331993: 511994: 581995: 591996: 451997: 591998: 611999: 582000: 672001: 562002: 762003: 642004: 352005: 732006: 742007: 872008: 562009: 482010: 912011: 932012: 992013: 762014: 582015: 512016: 622017: 582018: 902019: 592020: 582021: 702022: 672023: 672024: 582025: 612026: 80198119871992199720022007201220172022
Days per year at Chillicothe 2S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 99 in 2012.
Days at or above 30 C (86 F) per year at Chillicothe 2S
YearDaysDecade average
19814364.5
19838164.5
19846664.5
19855364.5
19866564.5
19877364.5
19888264.5
19895364.5
19905455.1
19917355.1
19923355.1
19935155.1
19945855.1
19955955.1
19964555.1
19975955.1
19986155.1
19995855.1
20006763.6
20015663.6
20027663.6
20036463.6
20043563.6
20057363.6
20067463.6
20078763.6
20085663.6
20094863.6
20109173.7
20119373.7
20129973.7
20137673.7
20145873.7
20155173.7
20166273.7
20175873.7
20189073.7
20195973.7
20205865.9
20217065.9
20226765.9
20236765.9
20245865.9
20256165.9
20268065.9
First to last qualifying date each year at Chillicothe 2S For each year, a bar from the first to the last day at Chillicothe 2S meeting 30 C (86 F). 1981: 2 April 1981 to 5 October 19811983: 12 June 1983 to 3 October 19831984: 1 June 1984 to 24 September 19841985: 18 April 1985 to 19 September 19851986: 29 March 1986 to 28 September 19861987: 19 April 1987 to 26 September 19871988: 11 May 1988 to 22 September 19881989: 22 April 1989 to 15 October 19891990: 13 June 1990 to 6 October 19901991: 14 May 1991 to 15 September 19911992: 17 May 1992 to 16 September 19921993: 12 June 1993 to 13 September 19931994: 24 May 1994 to 2 October 19941995: 8 June 1995 to 5 September 19951996: 18 May 1996 to 9 September 19961997: 18 May 1997 to 7 October 19971998: 16 May 1998 to 27 September 19981999: 5 June 1999 to 16 October 19992000: 9 May 2000 to 23 September 20002001: 28 April 2001 to 8 September 20012002: 16 April 2002 to 2 October 20022003: 11 May 2003 to 21 October 20032004: 17 April 2004 to 15 September 20042005: 11 May 2005 to 5 October 20052006: 14 April 2006 to 4 October 20062007: 30 April 2007 to 8 October 20072008: 18 May 2008 to 3 September 20082009: 8 May 2009 to 28 September 20092010: 23 May 2010 to 10 October 20102011: 4 April 2011 to 26 October 20112012: 3 April 2012 to 25 October 20122013: 15 May 2013 to 5 October 20132014: 13 April 2014 to 1 October 20142015: 8 June 2015 to 18 September 20152016: 7 June 2016 to 18 October 20162017: 16 May 2017 to 26 September 20172018: 7 May 2018 to 4 October 20182019: 17 May 2019 to 2 October 20192020: 9 April 2020 to 27 September 20202021: 27 April 2021 to 9 October 20212022: 10 May 2022 to 24 October 20222023: 5 April 2023 to 3 October 20232024: 15 April 2024 to 13 October 20242025: 15 May 2025 to 6 October 20252026: 21 March 2026 to 14 October 202619811988199420002006201220182024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chillicothe 2S meeting 30 C (86 F).
First to last qualifying date each year at Chillicothe 2S
YearFirst dateLast date
19811981-04-021981-10-05
19831983-06-121983-10-03
19841984-06-011984-09-24
19851985-04-181985-09-19
19861986-03-291986-09-28
19871987-04-191987-09-26
19881988-05-111988-09-22
19891989-04-221989-10-15
19901990-06-131990-10-06
19911991-05-141991-09-15
19921992-05-171992-09-16
19931993-06-121993-09-13
19941994-05-241994-10-02
19951995-06-081995-09-05
19961996-05-181996-09-09
19971997-05-181997-10-07
19981998-05-161998-09-27
19991999-06-051999-10-16
20002000-05-092000-09-23
20012001-04-282001-09-08
20022002-04-162002-10-02
20032003-05-112003-10-21
20042004-04-172004-09-15
20052005-05-112005-10-05
20062006-04-142006-10-04
20072007-04-302007-10-08
20082008-05-182008-09-03
20092009-05-082009-09-28
20102010-05-232010-10-10
20112011-04-042011-10-26
20122012-04-032012-10-25
20132013-05-152013-10-05
20142014-04-132014-10-01
20152015-06-082015-09-18
20162016-06-072016-10-18
20172017-05-162017-09-26
20182018-05-072018-10-04
20192019-05-172019-10-02
20202020-04-092020-09-27
20212021-04-272021-10-09
20222022-05-102022-10-24
20232023-04-052023-10-03
20242024-04-152024-10-13
20252025-05-152025-10-06
20262026-03-212026-10-14

Every Fixed Threshold

Fixed thresholds at Chillicothe 2S
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4599201280
35 C (95 F): Days4348201211
40 C (104 F): Days71420121
90 F (32.2 C): Days4574201244
100 F (37.8 C): Days182720121
110 F (43.3 C): Days1120121
0 C (32 F): Ice days (max4549201018
0 C (32 F): Frost days (min40148201364
-10 C (14 F): Days with min4052201423
-20 C (-4 F): Days with min341719893
-30 C (-22 F): Days with min1319893
20 C (68 F): Tropical nights (min4075201052
25 C (77 F): Days with min281020116
10 mm (0.39 in): Days with 10 mm or more rain10846197326
25 mm (0.98 in): Days with 25 mm or more rain1082120199
50 mm (1.97 in): Days with 50 mm or more rain98720011
100 mm (3.94 in): Days with 100 mm or more rain19219691
10 cm (3.9 in): Days with 10 cm or more snowfall36519621

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1981.

Download the Data

  • Data for Chillicothe 2S 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).