Fond Du Lac Cnty Arpt climate by month
Averages and records for each calendar month at Fond Du Lac Cnty Arpt, United States, from 1996 to 2026. The warmest month is July, averaging 28.0°C; the coolest is January at −2.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −2.8°C | −11.0°C | 13.3°C9 January 2026 | −33.2°C26 January 2019 | 30 / 30 |
| February | −0.6°C | −9.9°C | 21.7°C27 February 2024 | −30.5°C18 February 2025 | 30 / 30 |
| March | 6.1°C | −3.7°C | 28.3°C21 March 2012 | −27.1°C3 March 2014 | 30 / 30 |
| April | 13.5°C | 2.2°C | 29.4°C29 April 2007 | −11.6°C8 April 2018 | 29 / 30 |
| May | 20.2°C | 8.2°C | 35.0°C28 May 2018 | −3.9°C3 May 2004 | 30 / 30 |
| June | 25.6°C | 14.1°C | 36.1°C14 June 2007 | 1.7°C1 June 2003 | 29 / 30 |
| July | 28.0°C | 16.4°C | 38.9°C23 July 2012 | 7.8°C2 July 2001 | 29 / 30 |
| August | 26.5°C | 15.3°C | 36.7°C23 August 2023 | 4.4°C31 August 2009 | 31 / 31 |
| September | 23.1°C | 11.1°C | 35.0°C3 September 2023 | −0.6°C19 September 2012 | 30 / 31 |
| October | 15.6°C | 4.9°C | 31.1°C6 October 2007 | −6.1°C12 October 2012 | 30 / 30 |
| November | 7.6°C | −1.4°C | 25.0°C9 November 2020 | −18.8°C27 November 2014 | 30 / 30 |
| December | 0.4°C | −7.5°C | 18.3°C5 December 2001 | −28.3°C28 December 2000 | 30 / 30 |
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 29 to 31 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.