Hattiesburg weather in December

In December, Hattiesburg sees average daytime highs of 62°F and overnight lows near 42°F, with 4.4 in of precipitation across 9.5 wet days and about 10 hours of daylight. It is the 11th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 64°F in the first days to 60°F by the end. The sky is clear or mostly clear about 34% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 06 min at the start of December to 10 hours by month's end. Set against the rest of the year, December is Hattiesburg's 8th-clearest and 5th-windiest month. For the whole year in context, see Hattiesburg's year-round climate.

Daytime high
62°
11th warmest
Overnight low
42°
2nd coldest
Precipitation
4.4 in
9.5 wet days
Daylight
10 hours
6:54 AM – 4:52 PM
Cloud cover
58%
8th clearest
Wind
6 mph
5th windiest
Solar energy
2.59 kWh/m²
Travel score
5.3
out of 10

Hattiesburg is city in Lamar County and Forrest County, Mississippi, United States; county seat of Forrest County, Mississippi.

Density
333/km²
people per km²
Founded
1882

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 64°F in the first days to 60°F by the end.

A typical December day in Hattiesburg reaches about 62°F in the afternoon and slips back to 42°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 49°F and 73°F. Set against its neighbours, December runs about 7°F cooler than November and about 2°F warmer than January.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
16544
26444
36443
46443
56443
66343
76343
86343
96343
106243
116242
126242
136242
146242
156142
166142
176142
186142
196142
206142
216042
226042
236042
246042
256042
266041
276041
286041
296041
305941
315941

How December really feels in Hattiesburg

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Hattiesburg weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan60° / 40°4.49.510.24.8
Feb64° / 43°4.39.410.95.7
Mar70° / 49°4.69.911.86.6
Apr77° / 56°4.08.412.77.1
May84° / 64°4.010.113.65.6
Jun89° / 71°4.513.7143.7
Jul91° / 73°5.117.713.83.1
Aug91° / 72°4.515.813.13.2
Sep87° / 68°3.410.312.24.7
Oct79° / 57°3.36.911.27.3
Nov69° / 47°3.47.810.46.9
Dec62° / 42°4.49.5105.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25248
35248
45149
55050
64951
74852
84852
94753
104753
114753
124555
134654
144654
154456
164555
174555
184555
194555
204555
214456
224456
234456
244258
254357
264258
274357
284258
294258
304258
314357

Chance of precipitation in December

Any precipitation

Hattiesburg gets around 4.4 in of rain and snow over 9.5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 33% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)
128
229
329
429
529
630
730
830
930
1030
1130
1230
1330
1430
1531
1631
1731
1831
1931
2031
2132
2232
2332
2432
2533
2633
2733
2833
2933
3033
3133

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 77% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
17511950
27511950
37511950
47511950
57611940
675111040
775111040
875111040
975111040
1075111040
1176111030
1276111030
1376111030
1476111030
157711930
167810930
177810930
187810930
197810831
207810831
217810831
227810831
237810831
247810831
257810831
267810831
27799831
28799831
29799831
30799831
31799831

Wind in December

Winds average 6 mph in December.

Across December, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 06 min at the start of December to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:44 AM to 7:01 AM, and sunset from 4:50 PM to 5:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.16:444:50
210.16:444:50
310.16:454:50
410.16:464:50
510.16:474:50
610.06:474:50
710.06:484:50
810.06:494:51
910.06:504:51
1010.06:504:51
1110.06:514:51
1210.06:524:51
1310.06:524:52
1410.06:534:52
1510.06:544:52
1610.06:544:52
1710.06:554:53
1810.06:554:53
1910.06:564:54
2010.06:564:54
2110.06:574:54
2210.06:574:55
2310.06:584:55
2410.06:584:56
2510.06:594:56
2610.06:594:57
2710.06:594:58
2810.07:004:58
2910.07:004:59
3010.07:004:59
3110.07:015:00

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.59 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.59 kWh/m² to a high of 6.15 kWh/m² in May across the year — December's 2.59 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.8Moderate
22.8Moderate
32.8Moderate
42.8Moderate
52.7Moderate
62.7Moderate
72.7Moderate
82.7Moderate
92.7Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.5Moderate
292.5Moderate
302.5Moderate
312.5Moderate
Planning a trip in December

Is December a good time to visit Hattiesburg?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.3
Sightseeing
7th-best month of the year
1.0
Beach & pool
11th-best month of the year

December is a reasonable time to visit Hattiesburg for sightseeing.

What to pack for Hattiesburg in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Hattiesburg sees daytime highs around 62°F and nights near 42°F. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

UV index in Hattiesburg in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hattiesburg peaks around July 10 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 10UV 10Dec 20UV 3
UV index (midday)Level
Jan4Moderate
Feb6High
Mar6High
Apr10Very high
May9Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Hattiesburg in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Hattiesburg is worst in July — around 22 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1621 µg/m³Dec 227 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb10Good
Mar16Moderate
Apr12Moderate
May14Moderate
Jun18Moderate
Jul22Moderate
Aug18Moderate
Sep13Moderate
Oct9Good
Nov8Good
Dec7Good
Location & terrain

Where is Hattiesburg?

Hattiesburg sits at 31.3°N, 89.3°W, 171 ft above sea level, in United States. The nearest listed city is Laurel, 27 mi away.

Topography around Hattiesburg

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Hattiesburg.

Within 2 miles, the terrain around Hattiesburg has only modest variations in elevation — a maximum elevation change of 128 ft around an average of 167 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 397 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 587 ft.

The land around Hattiesburg is covered by trees (59%) within 2 miles, trees (78%) within 10 miles, and trees (89%) within 50 miles.

2 miles
128 ft
10 miles
397 ft
50 miles
587 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Laurel 27 mi · West Gulfport 65 mi · Gulfport 67 mi · Long Beach 68 mi · Biloxi 69 mi · Ocean Springs 69 mi · Gautier 76 mi · Brandon 77 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Hattiesburg (31.3271°, -89.2903°, elevation 171 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).