Historical weather data, all-time temperature records, and monthly climate averages for Hattiesburg, MS. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Hattiesburg typically feels like proper spring, with average highs near 77° and lows around 52°. The date has seen some wild swings across 128 years of records — from a sweltering 89° in 1934 to a hard freeze at 31° in 1987. Today there's just a 1-in-4 chance of rain, so odds are in your favor.
Hattiesburg plays in the extremes — the thermometer has climbed to 106° and plunged to -1°, a 107-degree spread that tells you this is no mild-mannered climate. The wettest single day on record dumped a staggering 10.68 inches in April 1983, and even a rare 5.7-inch snowfall showed up as recently as December 2017.
Summers here are long and intense, with highs hovering around 92° from mid-July through August — not the place for heat-averse travelers. Relief comes slowly; it's not until October that highs drop back to 80°, and the coolest stretch of the year barely reaches 60° in early January. If you're watching the calendar for rain, late December is statistically the wettest week of the year.