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Weather extremes

How extreme does Hattiesburg's weather get?

The hottest, coldest, wettest and snowiest days Hattiesburg has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 20 years of daily weather observations (2005–present), from the Bobby L Chain Muni Airport station 7 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Hattiesburg has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
107°F Aug 26, 2023

The three most extreme on record

1 107°F Aug 26, 2023recent
2 106°F Aug 27, 2023
3 105°F Aug 12, 2023
❄️ Coldest night
12°F Jan 30, 2014

The three most extreme on record

1 12°F Jan 30, 2014
2 12°F Jan 17, 2018
3 12°F Jan 22, 2025
🌧️ Most rain in one day
7.63 in Dec 28, 2018

The three most extreme on record

1 7.63 in Dec 28, 2018
2 5.88 in Mar 11, 2016
3 5.34 in Apr 13, 2009

In plain terms

Across the record, Hattiesburg has reached as high as 107°F and as low as 12°F. A single day has delivered over 8 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Gulfport - Biloxi AP (NOAA GHCN station USW00093874), about 104 km from the city centre.

How we build these numbers →