Aurora State Arpt climate by month
Averages and records for each calendar month at Aurora State Arpt, United States, from 1997 to 2026. The warmest month is August, averaging 28.4°C; the coolest is December at 8.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 8.8°C | 2.2°C | 18.3°C18 January 2005 | −8.8°C6 January 2017 | 29 / 29 |
| February | 10.6°C | 2.4°C | 20.6°C6 February 1998 | −7.1°C26 February 2011 | 28 / 29 |
| March | 13.2°C | 3.8°C | 27.8°C26 March 2025 | −3.8°C4 March 2019 | 29 / 29 |
| April | 16.2°C | 5.5°C | 32.8°C28 April 2023 | −1.6°C11 April 2021 | 29 / 29 |
| May | 20.1°C | 8.6°C | 37.2°C15 May 2006 | 0.6°C10 May 2012 | 29 / 29 |
| June | 23.5°C | 11.2°C | 45.6°C28 June 2021 | 5.0°C3 June 1999 | 30 / 30 |
| July | 28.3°C | 13.3°C | 42.2°C29 July 2009 | 7.2°C4 July 2012 | 30 / 30 |
| August | 28.4°C | 13.5°C | 41.7°C14 August 2023 | 6.7°C24 August 2012 | 30 / 30 |
| September | 24.8°C | 11.1°C | 37.8°C2 September 2017 | 2.2°C27 September 1999 | 29 / 30 |
| October | 17.7°C | 7.3°C | 32.2°C15 October 2022 | −3.2°C26 October 2020 | 29 / 29 |
| November | 11.7°C | 4.2°C | 23.9°C3 November 2010 | −8.2°C24 November 2010 | 29 / 29 |
| December | 8.3°C | 2.0°C | 19.4°C28 December 1998 | −12.1°C10 December 2009 | 29 / 29 |
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 28 to 30 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.