MOLINE QUAD-CITY AIRPORT weather by month
Averages and records for each calendar month at MOLINE QUAD-CITY AIRPORT, United States, from 1943 to 2026. The warmest month is July, averaging 29.8°C; the coolest is January at −0.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −0.9°C | −10.3°C | 20.6°C31 January 1989 | −36.0°C31 January 2019 | 83 / 83 |
| February | 1.8°C | −8.0°C | 26.1°C27 February 2024 | −33.3°C3 February 1996 | 83 / 83 |
| March | 8.8°C | −1.9°C | 31.1°C29 March 1986 | −28.3°C6 March 1960 | 83 / 83 |
| April | 16.6°C | 4.3°C | 33.9°C25 April 1986 | −13.9°C7 April 1982 | 83 / 83 |
| May | 22.8°C | 10.2°C | 37.2°C28 May 2018 | −3.9°C3 May 2005 | 83 / 84 |
| June | 28.0°C | 15.8°C | 40.0°C25 June 1988 | 3.9°C4 June 1945 | 84 / 84 |
| July | 29.8°C | 18.1°C | 40.0°C7 July 2012 | 7.8°C11 July 1945 | 84 / 84 |
| August | 28.7°C | 16.9°C | 39.4°C17 August 1983 | 4.4°C28 August 1986 | 84 / 84 |
| September | 24.9°C | 12.1°C | 37.2°C1 September 1953 | −1.1°C29 September 1949 | 83 / 84 |
| October | 18.3°C | 5.8°C | 35.0°C3 October 2006 | −8.9°C29 October 1952 | 83 / 83 |
| November | 9.3°C | −0.8°C | 26.7°C1 November 2000 | −22.8°C29 November 1976 | 83 / 83 |
| December | 1.8°C | −7.0°C | 23.9°C15 December 2021 | −31.1°C23 December 1989 | 83 / 83 |
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 83 to 84 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
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.