Rantoul/Chanute AFB climate by month
Averages and records for each calendar month at Rantoul/Chanute AFB, United States, from 1896 to 2023. The warmest month is July, averaging 30.3°C; the coolest is January at 1.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 1.0°C | −8.7°C | 21.1°C23 January 1909 | −32.8°C20 January 1985 | 88 / 90 |
| February | 2.9°C | −7.3°C | 22.2°C27 February 1996 | −31.1°C13 February 1905 | 89 / 90 |
| March | 9.6°C | −1.5°C | 30.6°C21 March 1907 | −25.0°C2 March 1980 | 90 / 91 |
| April | 17.1°C | 4.2°C | 32.8°C29 April 1899 | −12.2°C7 April 1982 | 91 / 91 |
| May | 23.4°C | 10.4°C | 37.2°C27 May 2012 | −3.3°C1 May 1903 | 89 / 90 |
| June | 28.6°C | 15.8°C | 40.6°C23 June 1994 | 2.2°C3 June 1910 | 89 / 90 |
| July | 30.3°C | 17.8°C | 42.8°C14 July 1954 | 5.6°C2 July 1904 | 89 / 89 |
| August | 29.4°C | 16.5°C | 38.9°C2 August 1901 | 3.3°C29 August 1986 | 90 / 90 |
| September | 26.2°C | 12.3°C | 39.4°C5 September 1899 | −4.4°C30 September 1899 | 90 / 91 |
| October | 19.3°C | 5.8°C | 33.9°C7 October 2007 | −7.2°C28 October 1990 | 90 / 91 |
| November | 10.6°C | −0.4°C | 27.8°C2 November 2016 | −20.6°C24 November 1950 | 91 / 92 |
| December | 3.4°C | −5.7°C | 23.9°C4 December 1999 | −30.0°C22 December 1989 | 91 / 92 |
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 88 to 91 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.