Climate and monthly weather forecastHattiesburg, MS
Climate and monthly weather forecast
The climate of Hattiesburg
In the southeastern United States, specifically Hattiesburg, Mississippi, citizens encounter a humid subtropical climate, denoted as Cfa according to Köppen climate classification. Positioned geographically at the center of the south, the weather fluctuates becoming warmer in summer and maintaining modest chill during the winter months.Elaborating on the climate, the year's temperature varies between a low average of 39.7°F (4.3°C) (in January) to a high average of 91.8°F (33.2°C) (in August). Rainfall is both standard and common, with roughly 11.6 days of rain in January and peaking at an ample 22.3 days in August. As the year spans, daily daylight hours extend from 10.1 hours in December to 14.2 hours in June. A modest UV index ranges from 3 to 7, depending on the month.
Overall, Hattiesburg weather is characterized by high humidity, ranging from 74% in May to 81% in December, and relatively stable air pressure ranging from 29.97in in June and September to 30.17in in January. While the climate can generally be described as wet and warm, with cloud coverage of 29% in October up to 49% in February and December, some months see significant weather extremes. Highest rainfall touches at 4.37in in July, while snowfall, though rare, can be seen in January, February, and December.
The best time to visit Hattiesburg
The pleasant months, from April till June, serve as the best time to visit Hattiesburg. During these months, the average high temperature lies from the comfortable mid-70s°F to the low 90s°F. In addition, the daylight hours span from 13 hours to 14.2 hours providing ample time for tourists to explore the city. Further, the UV index is modest, between 5 and 7, rendering it agreeable for outdoor activities.The worst time to visit Hattiesburg
With the humid subtropical climate of Hattiesburg, comes a wet season. July and August, with peak rainfall reaching 4.37in and 3.98in respectively, can dampen travel plans and outdoor activities. High humidity levels in August, reaching 75%, can also make the weather feel oppressively warm, with average highs soaring up to 91.8°F (33.2°C). Furthermore, the number of rainy days reaches its peak, with 22.3 days in August.Spring weather in Hattiesburg
The spring weather, from March till May, provides a moderate climate, ideal for travel. Average high temperatures, during these months, range from a comfortable 69.8°F (21°C) in March to a slightly warmer 84.7°F (29.3°C) in May. Rainfall during this period is also moderate, with an average between 2.6in in April to 3.07in in March.Summer weather in Hattiesburg
The summer season, covering months from June until August, stands at the peak with the maximum temperature average of 91°F (32.8°C) in June, going up to 91.8°F (33.2°C) in August. The rainfall also increases from 3.15in in June reaching up to 4.37in in July. However, the humidity during this period remains close to 74% in June and goes up to 76% in August, indicating a warm and humid climate.Autumn weather in Hattiesburg
Autumn in Hattiesburg, from September until November, is marked by a decline in temperatures. The average high temperatures decrease from 87.8°F (31°C) in September to 66.7°F (19.3°C) in November. Rainfall remains relatively stable around 2.91in in September to 1.77in in November. With drier weather and decreasing temperatures, the season becomes pleasant.Winter weather in Hattiesburg
Winter months from December to February are characterized by mild and short cold periods with average high temperatures ranging from 56.8°F (13.8°C) in January to 62.2°F (16.8°C) in February. Though low, the average snowfall of 0.24in in January indicates the colder climate during this period. The number of daylight hours shrinks to 10.4 hours in January, indicating shorter days, and the UV index declines to 3 by December, illustrating the subdued sunlight during wintery days.Weather in January
Hattiesburg, Mississippi, witnesses cool temperatures at the start of the year. With the highest temperature reaching 56.8°F (13.8°C), it remains a month marked by relative coldness. Notable precipitation observed in Hattiesburg, rendering the weather condition slightly moist with a reported rainfall of 2.64" (67mm). Weather in January »Weather in February
Moving into February, the weather exhibits changes hinting towards the arrival of spring. A welcomed increase in temperature adds warmth to the city's atmosphere. The highest temperature for the month rises to 62.2°F (16.8°C), symbolizing the fading winter. Weather in February »Weather in March
March marks an exciting transition in Hattiesburg's climate. A significant increase in temperature becomes evident, with the mercury reaching up to 69.8°F (21°C). The city witnesses thriving life around its corners, indicating the much-awaited arrival of spring. Weather in March »Weather in April
April brings ample warmth to Hattiesburg, indicating the arrival of the warm season. The weather seems to sway in favor of sun enthusiasts as the highest temperature is recorded at 77.7°F (25.4°C). Flowers are in full bloom and days appear longer, lighting up the city's atmosphere. Weather in April »Weather in May
The month of May introduces summer to Hattiesburg, Mississippi. The arrival of warmer days is signaled by May's peak temperature that spikes up to 84.7°F (29.3°C). Locals and tourists indulge in a variety of outdoor activities, taking full advantage of the increased daylight hours. Weather in May »Weather in June
Heat intensifies in June, marking the peak of the summer season in Hattiesburg. The thermometer hits a high of 91°F (32.8°C) signifying the arrival of hot summer days. The warmth of the season, combined with the city's vibrant community, has locals buzzing with activities. Weather in June »Weather in July
July in Hattiesburg, Mississippi, is a time of searing heat. With the mercury soaring to a high of 91.8°F (33.2°C), the city experiences scorching temperatures and humid conditions. Despite these heatwave conditions, life in the city continues, albeit at a slower pace. Weather in July »Weather in August
With little change in the hot weather, August presents similar weather patterns as July in Hattiesburg. With the highest temperature climbing to 91.6°F (33.1°C), August is as warm as any summer month. Residents and tourists alike eagerly anticipate the cooling changes of the upcoming fall. Weather in August »Weather in September
The hot summer starts to wind down as September makes its entrance in Hattiesburg. With a significant dip in the hottest temperature, which falls to 87.8°F (31°C), it marks the onset of the fall. The city begins to wear a different look, with summer greens swapping places with fall hues. Weather in September »Weather in October
October sees a continuous decline in the temperatures, hinting towards the approaching cool season in Hattiesburg. A substantial decrease in the highest temperature to 78.6°F (25.9°C) indicates the ongoing transition. Trees take on hues of autumn and forests put on a display worth beholding. Weather in October »Weather in November
As the city of Hattiesburg gears towards the end of the year, November sets in with a noticeable chill in the air. The highest temperature drops to 66.7°F (19.3°C), indicating the arrival of winter. Despite the cold, the city remains bustling with activity, owing to the festive season around the corner. Weather in November »Weather in December
Winter assumes full swing in Hattiesburg, Mississippi, as December advances. Witnessing the lowest temperature of the year, December’s highest temperature drops to 59.7°F (15.4°C). The famed holiday season fills the air with cheer, with twinkling lights brightening winter nights. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Hattiesburg, MS
The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is January (56.8°F).
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure
Hattiesburg, MS
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed
Hattiesburg, MS
- Average wind speed in January:
6.6mph - Average wind speed in February:
6.7mph - Average wind speed in March:
6.6mph - Average wind speed in April:
6.8mph - Average wind speed in May:
5.6mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.4mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.7mph - Average wind speed in October:
5.7mph - Average wind speed in November:
6.2mph - Average wind speed in December:
6.4mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).
Average humidity
Hattiesburg, MS
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Hattiesburg, MS
- Average rainfall in January:
2.64" - Average rainfall in February:
2.8" - Average rainfall in March:
3.07" - Average rainfall in April:
2.6" - Average rainfall in May:
2.95" - Average rainfall in June:
3.15"
- Average rainfall in July:
4.37" - Average rainfall in August:
3.98" - Average rainfall in September:
2.91" - Average rainfall in October:
2.44" - Average rainfall in November:
1.77" - Average rainfall in December:
3.74"
The wettest month (with the highest rainfall) is July (4.37").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days
Hattiesburg, MS
- Average rainfall days in January:
11.6 days - Average rainfall days in February:
13.6 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
12.4 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
21.8 days - Average rainfall days in August:
22.3 days - Average rainfall days in September:
17.5 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
13.8 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.7 days).
Average snowfall
Hattiesburg, MS
The month with the highest snowfall is December (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Hattiesburg, MS
- Average snowfall days in January:
0.5 days - Average snowfall days in February:
0.3 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.4 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Hattiesburg, MS
- Average daylight in January:
10h and 24min - Average daylight in February:
11h and 6min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 48min - Average daylight in June:
14h and 12min
- Average daylight in July:
14h and 0min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 36min - Average daylight in December:
10h and 12min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in January:
5h and 24min - Average sunshine in February:
5h and 0min - Average sunshine in March:
7h and 12min - Average sunshine in April:
9h and 24min - Average sunshine in May:
10h and 0min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 6min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 6min - Average sunshine in December:
4h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days
Hattiesburg, MS
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
12.7 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
15.1 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
6.8 days - Average sunshine days in August:
6.4 days - Average sunshine days in September:
10.3 days - Average sunshine days in October:
19.8 days - Average sunshine days in November:
19.8 days - Average sunshine days in December:
14.9 days
The months with the most sunshine days are October and November (19.8 days).
The month with the least sunshine days is August (6.4 days).
Average UV index
Hattiesburg, MS
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover
Hattiesburg, MS
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility
Hattiesburg, MS
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).





