Snellville weather in December

In December, Snellville sees average daytime highs of 55°F and overnight lows near 38°F, with 4.4 in of precipitation across 10.1 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 58°F in the first days to 53°F by the end. The sky is clear or mostly clear about 36% 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 Snellville's 8th-clearest and 4th-windiest month. For the whole year in context, see Snellville's year-round climate.

Daytime high
55°
11th warmest
Overnight low
38°
2nd coldest
Precipitation
4.4 in
10.1 wet days
Daylight
9 h 48 min
7:39 AM – 5:25 PM
Cloud cover
59%
8th clearest
Wind
7 mph
4th windiest
Solar energy
2.33 kWh/m²
Travel score
3.6
out of 10

Snellville is city in Gwinnett County, Georgia, United States.

Density
720/km²
people per km²
Founded
1874

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 58°F in the first days to 53°F by the end.

A typical December day in Snellville reaches about 55°F in the afternoon and slips back to 38°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 43°F and 67°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)
15940
25839
35839
45839
55839
65739
75738
85738
95638
105638
115638
125638
135538
145538
155537
165537
175537
185537
195437
205437
215437
225437
235437
245437
255437
265437
275437
285337
295337
305336
315336

How December really feels in Snellville

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 19 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
19
wind chill below the day's low

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

Snellville 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 daysSnow daysDaylight (hours)Travel score
Jan53° / 35°4.3100.5103.1
Feb57° / 38°4.59.50.310.74.1
Mar65° / 44°4.510.20.111.75.9
Apr73° / 52°3.59.2012.86.9
May80° / 61°3.19.6013.76.5
Jun86° / 68°4.114014.24.6
Jul89° / 72°4.015.30143.8
Aug88° / 71°4.012.8013.34.2
Sep83° / 65°3.68.4012.26.2
Oct73° / 53°3.27011.17.4
Nov63° / 43°3.78.2010.25.9
Dec55° / 38°4.410.10.39.83.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
34951
44951
54753
64753
74753
84654
94654
104654
114555
124555
134654
144555
154555
164555
174555
184654
194555
204555
214555
224357
234357
244357
254357
264258
274258
284159
294159
304159
314258

Chance of precipitation in December

Any precipitationSnow

Snellville gets around 4.4 in of rain and snow over 10.1 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 33% and peaks near 35% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1300
2300
3301
4311
5311
6311
7311
8311
9311
10321
11321
12321
13321
14331
15331
16341
17341
18341
19351
20351
21351
22351
23351
24351
25341
26341
27341
28341
29332
30332
31332

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 (%)Muggy (%)
189731
290631
390631
491621
591621
691621
791621
892620
992620
1092620
1192620
1292620
1392620
1493610
1593610
1692620
1793520
1893520
1993520
2093520
2193520
2292521
2392521
2492521
2592521
2692521
2791621
2891621
2991621
3091621
3190721

Wind in December

Winds average 7 mph in December.

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

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177light breeze
187light breeze
197light breeze
207light breeze
217light breeze
227light breeze
237light breeze
247light breeze
257light breeze
267light breeze
277light breeze
287light breeze
297light breeze
307light breeze
317light 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 7:28 AM to 7:46 AM, and sunset from 5:23 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:285:23
29.97:295:23
39.97:305:23
49.97:315:23
59.97:325:23
69.87:335:23
79.87:335:23
89.87:345:23
99.87:355:23
109.87:365:24
119.87:365:24
129.87:375:24
139.87:385:24
149.87:385:24
159.87:395:25
169.87:395:25
179.87:405:25
189.87:415:26
199.77:415:26
209.77:425:27
219.77:425:27
229.77:435:27
239.77:435:28
249.77:445:28
259.77:445:29
269.87:445:29
279.87:455:30
289.87:455:31
299.87:455:31
309.87:465:32
319.87:465:33

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.33 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 6.09 kWh/m² in May across the year — December's 2.33 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
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

Is December a good time to visit Snellville?

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

3.6
Sightseeing
11th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Snellville.

What to pack for Snellville in December

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

In December, Snellville sees daytime highs around 55°F and nights near 38°F. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

UV index in Snellville 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 Snellville peaks around June 23 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 23UV 10Dec 20UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep7Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Snellville 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 Snellville is worst in July — around 21 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (January, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1621 µg/m³Jan 118 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar13Moderate
Apr12Moderate
May15Moderate
Jun18Moderate
Jul21Moderate
Aug18Moderate
Sep13Moderate
Oct11Good
Nov10Good
Dec8Good
Location & terrain

Where is Snellville?

Snellville sits at 33.9°N, 84.0°W, 1,060 ft above sea level, in United States. The nearest listed city is Lawrenceville, 6.8 mi away.

Topography around Snellville

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

Within 2 miles, the terrain around Snellville has only modest variations in elevation — a maximum elevation change of 305 ft around an average of 1,033 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,119 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,900 ft.

The land around Snellville is covered by trees (63%) and artificial surfaces (22%) within 2 miles, trees (70%) within 10 miles, and trees (81%) within 50 miles.

2 miles
305 ft
10 miles
1,119 ft
50 miles
2,900 ft
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Lawrenceville 6.8 mi · Redan 9.9 mi · Tucker 11 mi · Stonecrest 12 mi · Duluth 12 mi · Norcross 12 mi · Conyers 13 mi · Suwanee 14 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 Snellville (33.8573°, -84.0199°, elevation 1,060 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).