Gulfport-Biloxi Intl climate by month
Averages and records for each calendar month at Gulfport-Biloxi Intl, United States, from 1998 to 2026. The warmest month is August, averaging 33.0°C; the coolest is January at 16.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 16.5°C | 5.4°C | 27.2°C2 January 2009 | −13.8°C22 January 2025 | 28 / 28 |
| February | 18.5°C | 7.9°C | 28.3°C16 February 2018 | −7.2°C1 February 2026 | 28 / 28 |
| March | 22.0°C | 11.3°C | 31.1°C12 March 2003 | −5.0°C5 March 2002 | 28 / 28 |
| April | 25.3°C | 15.0°C | 32.8°C9 April 2020 | 1.1°C9 April 2000 | 28 / 28 |
| May | 28.9°C | 19.4°C | 36.7°C14 May 2018 | 6.1°C4 May 2013 | 28 / 28 |
| June | 31.9°C | 23.0°C | 39.4°C4 June 2011 | 15.0°C8 June 2000 | 28 / 28 |
| July | 32.8°C | 23.9°C | 38.9°C15 July 2015 | 18.3°C25 July 2000 | 28 / 28 |
| August | 33.0°C | 23.8°C | 41.7°C26 August 2023 | 15.6°C14 August 2004 | 28 / 29 |
| September | 31.0°C | 21.6°C | 37.2°C12 September 2010 | 9.4°C27 September 2001 | 27 / 29 |
| October | 27.1°C | 15.7°C | 35.0°C1 October 2019 | 1.7°C29 October 2008 | 28 / 28 |
| November | 21.8°C | 9.9°C | 31.1°C4 November 2016 | −3.8°C19 November 2014 | 28 / 28 |
| December | 17.9°C | 7.3°C | 26.7°C8 December 1998 | −6.1°C20 December 2000 | 28 / 28 |
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 27 to 28 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.