Chillicothe Agri-Sci climate by month
Averages and records for each calendar month at Chillicothe Agri-Sci, United States, from 1998 to 2026. The warmest month is July, averaging 31.2°C; the coolest is January at 3.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 3.0°C | −7.6°C | 22.2°C28 January 2013 | −28.3°C5 January 1999 | 28 / 28 |
| February | 5.8°C | −6.1°C | 25.6°C22 February 2017 | −27.7°C3 February 2011 | 28 / 28 |
| March | 13.0°C | 0.6°C | 33.9°C21 March 2026 | −22.7°C3 March 2014 | 28 / 28 |
| April | 19.1°C | 6.3°C | 32.8°C25 April 2012 | −12.7°C2 April 2018 | 28 / 28 |
| May | 24.0°C | 12.0°C | 37.2°C27 May 2018 | −2.2°C3 May 2005 | 28 / 29 |
| June | 29.2°C | 17.6°C | 39.4°C28 June 2012 | 5.6°C6 June 1998 | 28 / 29 |
| July | 31.2°C | 19.7°C | 41.1°C7 July 2012 | 10.6°C28 July 2013 | 29 / 29 |
| August | 30.3°C | 18.6°C | 40.0°C21 August 2003 | 7.2°C12 August 2004 | 27 / 29 |
| September | 26.8°C | 13.5°C | 37.8°C5 September 2026 | 0.0°C29 September 2003 | 28 / 29 |
| October | 19.7°C | 6.8°C | 34.4°C3 October 2006 | −7.1°C19 October 2022 | 28 / 28 |
| November | 12.7°C | 0.6°C | 26.7°C13 November 1999 | −14.9°C12 November 2019 | 28 / 28 |
| December | 5.6°C | −5.0°C | 24.4°C15 December 2021 | −25.5°C24 December 2013 | 27 / 28 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 27 to 29 years each.
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Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.