Galesburg Muni climate by month
Averages and records for each calendar month at Galesburg Muni, United States, from 1896 to 2026. The warmest month is July, averaging 29.4°C; the coolest is January at −0.6°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −0.6°C | −9.8°C | 20.0°C23 January 1909 | −32.8°C16 January 2009 | 99 / 101 |
| February | 1.6°C | −7.9°C | 23.3°C28 February 2024 | −33.3°C13 February 1905 | 101 / 102 |
| March | 8.6°C | −2.0°C | 30.0°C29 March 1986 | −25.6°C5 March 1960 | 101 / 102 |
| April | 16.3°C | 4.3°C | 32.8°C29 April 1952 | −12.8°C2 April 1899 | 103 / 104 |
| May | 22.4°C | 10.6°C | 35.6°C28 May 2018 | −4.4°C1 May 1903 | 100 / 102 |
| June | 27.4°C | 16.0°C | 38.9°C29 June 1936 | 2.2°C12 June 1903 | 101 / 101 |
| July | 29.4°C | 18.2°C | 44.4°C15 July 1936 | 5.6°C1 July 1899 | 104 / 104 |
| August | 28.5°C | 17.2°C | 38.9°C18 August 1936 | 5.0°C24 August 1908 | 103 / 103 |
| September | 24.7°C | 12.6°C | 37.8°C5 September 1899 | −7.2°C30 September 1899 | 103 / 104 |
| October | 18.2°C | 6.3°C | 34.4°C3 October 2006 | −8.3°C17 October 2001 | 101 / 102 |
| November | 9.3°C | −0.8°C | 26.1°C1 November 1950 | −21.1°C27 November 1898 | 101 / 103 |
| December | 1.8°C | −6.7°C | 22.2°C16 December 2021 | −30.0°C21 December 1963 | 100 / 101 |
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 99 to 104 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.