Brunswick weather by month
Measured at Brunswick/McKinnon St Simons Arpt
Averages and records for each calendar month at Brunswick/McKinnon St Simons Arpt, United States, from 1944 to 2026. The warmest month is July, averaging 32.1°C; the coolest is January at 16.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 16.1°C | 6.1°C | 28.9°C30 January 2023 | −14.4°C21 January 1985 | 81 / 81 |
| February | 17.6°C | 7.6°C | 31.1°C23 February 2023 | −8.9°C5 February 1996 | 81 / 81 |
| March | 20.7°C | 10.9°C | 32.2°C12 March 1967 | −5.6°C3 March 1980 | 81 / 81 |
| April | 24.3°C | 14.9°C | 34.4°C27 April 1986 | 2.2°C7 April 1950 | 81 / 81 |
| May | 28.0°C | 19.3°C | 37.8°C26 May 1953 | 7.8°C2 May 1963 | 82 / 82 |
| June | 30.8°C | 22.6°C | 39.4°C3 June 1985 | 11.1°C1 June 1984 | 82 / 82 |
| July | 32.1°C | 23.8°C | 40.0°C20 July 1986 | 17.8°C5 July 1947 | 82 / 82 |
| August | 31.5°C | 23.7°C | 38.9°C8 August 2023 | 16.7°C25 August 1957 | 82 / 82 |
| September | 29.4°C | 22.1°C | 36.7°C5 September 1944 | 9.4°C30 September 1967 | 81 / 82 |
| October | 25.4°C | 16.7°C | 35.0°C5 October 1986 | 2.8°C29 October 1952 | 81 / 81 |
| November | 21.0°C | 11.2°C | 31.7°C1 November 1961 | −6.1°C25 November 1950 | 81 / 81 |
| December | 17.4°C | 7.5°C | 28.9°C16 December 1971 | −11.1°C25 December 1983 | 81 / 81 |
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 81 to 82 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.