Greenville weather in December

In December, Greenville sees average daytime highs of 56°F and overnight lows near 39°F, with 5.2 in of precipitation across 9.7 wet days and about 9.8 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 59°F in the first days to 54°F by the end. The sky is clear or mostly clear about 35% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 48 min by month's end. Set against the rest of the year, December is Greenville's 11th-clearest and 5th-windiest month. For the whole year in context, see Greenville's year-round climate.

Daytime high
56°
11th warmest
Overnight low
39°
2nd coldest
Precipitation
5.2 in
9.7 wet days
Daylight
9 h 48 min
7:06 AM – 4:54 PM
Cloud cover
58%
11th clearest
Wind
7 mph
5th windiest
Solar energy
2.32 kWh/m²
Travel score
3.8
out of 10

Greenville is city in Washington County, Mississippi, United States.

Density
449/km²
people per km²
Founded
1824

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 59°F in the first days to 54°F by the end.

A typical December day in Greenville reaches about 56°F in the afternoon and slips back to 39°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 42°F and 69°F. Set against its neighbours, December runs about 8°F cooler than November and about 2°F warmer than January.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
15942
25942
35941
45841
55841
65841
75841
85740
95740
105740
115740
125640
135640
145640
155639
165639
175639
185539
195539
205539
215539
225539
235538
245538
255438
265438
275438
285438
295438
305438
315438

How December really feels in Greenville

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.

Greenville weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan54° / 37°4.79.9103.3
Feb58° / 40°4.99.610.84.2
Mar66° / 48°5.311.211.76.0
Apr74° / 56°5.39.512.86.9
May82° / 65°4.710.813.76.2
Jun88° / 72°3.49.714.24.6
Jul90° / 75°3.410.9143.8
Aug91° / 74°3.18.913.23.9
Sep86° / 68°3.16.412.25.7
Oct75° / 56°4.27.611.27.4
Nov64° / 46°3.88.710.36.1
Dec56° / 39°5.29.79.83.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 10% of December, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34753
44753
54753
64654
74555
84555
94456
104456
114456
124555
134456
144456
154456
164555
174555
184555
194555
204555
214456
224456
234456
244456
254456
264456
274555
284456
294456
304456
314357

Chance of precipitation in December

Any precipitation

Greenville gets around 5.2 in of rain and snow over 9.7 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 32% and peaks near 34% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
331
431
531
631
731
831
931
1031
1132
1232
1332
1433
1533
1633
1734
1834
1934
2033
2133
2233
2333
2432
2532
2632
2732
2831
2931
3031
3131

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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1851050
286950
386950
487850
587850
687850
787760
887760
988750
1088750
1189650
1289650
1389650
1489650
1590640
1690640
1789641
1889641
1989641
2090631
2190631
2290631
2390631
2490631
2588741
2688741
2788741
2888741
2988741
3088741
3188741

Wind in December

Winds average 7 mph in December.

Across December, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37light breeze
47light breeze
57light breeze
67light breeze
77light breeze
87light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:56 AM to 7:13 AM, and sunset from 4:52 PM to 5:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.96:564:52
29.96:564:52
39.96:574:52
49.96:584:52
59.96:594:52
69.97:004:52
79.97:004:52
89.97:014:53
99.87:024:53
109.87:034:53
119.87:034:53
129.87:044:53
139.87:054:53
149.87:054:54
159.87:064:54
169.87:064:54
179.87:074:55
189.87:084:55
199.87:084:55
209.87:094:56
219.87:094:56
229.87:104:57
239.87:104:57
249.87:114:58
259.87:114:58
269.87:114:59
279.87:124:59
289.87:125:00
299.87:125:01
309.87:135:01
319.87:135:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.32 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.32 kWh/m² to a high of 6.52 kWh/m² in June across the year — December's 2.32 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.4Moderate
42.4Moderate
52.4Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.3Moderate
102.3Moderate
112.3Moderate
122.3Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in December

Hazard calendar for Greenville

In seasonPeak

None of Greenville's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Greenville sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Greenville?

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

3.8
Sightseeing
10th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Greenville.

What to pack for Greenville in December

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

In December, Greenville sees daytime highs around 56°F and nights near 39°F. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

UV index in Greenville in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Greenville peaks around June 20 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 — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 20UV 10Dec 20UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr9Very high
May9Very high
Jun10Very high
Jul9Very high
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Greenville 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 Greenville is worst in July — around 21 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1520 µg/m³Dec 186 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr10Good
May14Moderate
Jun18Moderate
Jul21Moderate
Aug16Moderate
Sep12Moderate
Oct8Good
Nov7Good
Dec6Good
Location & terrain

Where is Greenville?

Greenville sits at 33.4°N, 91.1°W, 131 ft above sea level, in United States. The nearest listed city is Greenwood, 52 mi away.

Topography around Greenville

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

Within 2 miles, the terrain around Greenville has only modest variations in elevation — a maximum elevation change of 95 ft around an average of 128 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 138 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 371 ft.

The land around Greenville is covered by trees (53%) within 2 miles, cropland (45%) and trees (34%) within 10 miles, and cropland (55%) and trees (35%) within 50 miles.

2 miles
95 ft
10 miles
138 ft
50 miles
371 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Greenwood 52 mi · Clarksdale 62 mi · Vicksburg 74 mi · Pine Bluff 78 mi · Clinton 85 mi · Madison 85 mi · Ridgeland 86 mi · Monroe 88 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 Greenville (33.409°, -91.0598°, elevation 131 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).