Bay City Muni climate by month
Averages and records for each calendar month at Bay City Muni, United States, from 2011 to 2026. The warmest month is August, averaging 34.3°C; the coolest is January at 18.6°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 18.6°C | 7.3°C | 27.8°C2 January 2026 | −9.4°C22 January 2025 | 14 / 15 |
| February | 20.4°C | 9.7°C | 28.9°C27 February 2026 | −8.8°C15 February 2021 | 14 / 14 |
| March | 23.9°C | 13.5°C | 31.1°C31 March 2016 | −1.0°C3 March 2014 | 15 / 15 |
| April | 26.5°C | 16.8°C | 35.0°C12 April 2020 | 3.3°C20 April 2013 | 15 / 15 |
| May | 29.6°C | 20.7°C | 34.4°C27 May 2024 | 5.6°C4 May 2013 | 14 / 14 |
| June | 32.6°C | 23.8°C | 40.6°C29 June 2013 | 18.3°C6 June 2023 | 15 / 16 |
| July | 33.5°C | 24.3°C | 39.4°C31 July 2023 | 20.0°C4 July 2013 | 16 / 16 |
| August | 34.3°C | 24.3°C | 44.4°C27 August 2023 | 18.9°C27 August 2015 | 16 / 16 |
| September | 32.1°C | 22.2°C | 41.7°C8 September 2023 | 11.1°C30 September 2020 | 15 / 16 |
| October | 28.7°C | 17.0°C | 35.0°C14 October 2024 | 1.7°C29 October 2017 | 15 / 15 |
| November | 23.3°C | 12.2°C | 32.8°C1 November 2012 | −0.5°C2 November 2023 | 14 / 15 |
| December | 20.5°C | 9.8°C | 28.9°C2 December 2012 | −7.7°C23 December 2022 | 15 / 15 |
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 14 to 16 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.