Greenville weather in December

In December, Greenville sees average daytime highs of 56°F and overnight lows near 39°F, with 4.1 in of precipitation across 7.9 wet days and about 9.9 hours of daylight. It is the 11th-warmest and 5th-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 43% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 hours 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 7th-clearest and 7th-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
4.1 in
7.9 wet days
Daylight
9 h 48 min
7:26 AM – 5:15 PM
Cloud cover
53%
7th clearest
Wind
8 mph
7th windiest
Solar energy
2.47 kWh/m²
Travel score
4.2
out of 10

Greenville is city in Hunt County, Texas, United States.

Density
304/km²
people per km²
Founded
1846

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 43°F and 70°F. Set against its neighbours, December runs about 9°F cooler than November and about 2°F warmer than January.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
16042
26042
35941
45941
55941
65841
75840
85840
95740
105740
115740
125739
135739
145639
155639
165639
175638
185638
195638
205538
215538
225538
235538
245538
255538
265538
275537
285437
295437
305437
315437

How December really feels in Greenville

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 11 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
11
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Greenville 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 daysSnow daysDaylight (hours)Travel score
Jan55° / 37°3.17.40.510.13.8
Feb59° / 40°3.380.610.84.7
Mar66° / 48°4.49.70.311.76.2
Apr74° / 55°5.19.7012.86.9
May81° / 64°5.911.6013.76.1
Jun88° / 72°3.79.4014.14.5
Jul93° / 75°2.26.70143.5
Aug93° / 75°2.05.9013.23.5
Sep87° / 68°3.06.4012.25.5
Oct76° / 57°4.17.9011.27.4
Nov65° / 47°3.67.60.110.36.4
Dec56° / 39°4.17.90.29.94.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% 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 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25644
35644
45545
55446
65446
75446
85347
95248
105248
115248
125248
135248
145248
155248
165248
175347
185446
195446
205446
215446
225347
235347
245347
255347
265347
275347
285347
295248
305248
315248

Chance of precipitation in December

Any precipitationSnow

Greenville gets around 4.1 in of rain and snow over 7.9 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 26% and peaks near 27% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1241
2241
3251
4251
5251
6261
7260
8260
9270
10270
11270
12270
13270
14270
15270
16270
17271
18271
19271
20261
21261
22261
23251
24251
25252
26242
27242
28242
29242
30242
31242

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 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
18866
28866
38866
48965
58965
68965
78965
89064
99064
109163
119163
129163
139262
149262
159262
169361
179451
189451
199451
209451
219541
229541
239442
249442
259442
269442
279343
289343
299343
309343
319343

Wind in December

Winds average 8 mph in December.

Across December, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light 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 10 hours 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 12 minutes over December. Sunrise moves from 7:15 AM to 7:32 AM, and sunset from 5:13 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.07:155:13
210.07:165:13
39.97:175:13
49.97:185:13
59.97:185:13
69.97:195:13
79.97:205:13
89.97:215:13
99.97:215:14
109.97:225:14
119.97:235:14
129.87:235:14
139.87:245:14
149.87:255:15
159.87:255:15
169.87:265:15
179.87:275:16
189.87:275:16
199.87:285:16
209.87:285:17
219.87:295:17
229.87:295:18
239.87:305:18
249.87:305:19
259.87:305:19
269.87:315:20
279.87:315:20
289.87:325:21
299.87:325:21
309.87:325:22
319.87:325:23

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.47 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 6.7 kWh/m² in July across the year — December's 2.47 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.6Moderate
42.6Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.4Moderate
132.4Moderate
142.4Moderate
152.4Moderate
162.4Moderate
172.4Moderate
182.4Moderate
192.4Moderate
202.4Moderate
212.4Moderate
222.4Moderate
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 Greenville?

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

4.2
Sightseeing
9th-best month of the year
0.1
Beach & pool
11th-best month of the year

December is a reasonable time to visit Greenville for sightseeing.

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. About 8 days see rain.

a warm layer

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 21 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highVery highHighModerateJun 21UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr9Very high
May9Very high
Jun10Extreme
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
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 20 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (January, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1519 µg/m³Jan 17 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr10Good
May14Moderate
Jun16Moderate
Jul20Moderate
Aug15Moderate
Sep11Good
Oct7Good
Nov7Good
Dec7Good
Location & terrain

Where is Greenville?

Greenville sits at 33.1°N, 96.1°W, 541 ft above sea level, in United States. The nearest listed city is Rockwall, 25 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 102 ft around an average of 545 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 269 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 584 ft.

The land around Greenville is covered by trees (40%), grassland (30%) and artificial surfaces (21%) within 2 miles, grassland (58%) and trees (30%) within 10 miles, and grassland (51%) and trees (28%) within 50 miles.

2 miles
102 ft
10 miles
269 ft
50 miles
584 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Rockwall 25 mi · Wylie 26 mi · Terrell 29 mi · McKinney 29 mi · Sulphur Springs 29 mi · Sachse 30 mi · Murphy 30 mi · Rowlett 31 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 (33.1384°, -96.1108°, elevation 541 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).