Clarksburg weather in December

In December, Clarksburg sees average daytime highs of 44°F and overnight lows near 30°F, with 4.2 in of precipitation across 12.9 wet days and about 9.3 hours of daylight. It is the 10th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 47°F in the first days to 42°F by the end. The sky is clear or mostly clear about 18% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 24 min at the start of December to 9 h 18 min by month's end. Set against the rest of the year, December is Clarksburg's 10th-clearest and 5th-windiest month. For the whole year in context, see Clarksburg's year-round climate.

Daytime high
44°
10th warmest
Overnight low
30°
3rd coldest
Precipitation
4.2 in
12.9 wet days
Daylight
9 h 12 min
7:40 AM – 4:55 PM
Cloud cover
73%
10th clearest
Wind
7 mph
5th windiest
Solar energy
1.61 kWh/m²
Travel score
0.7
out of 10

Clarksburg is city in West Virginia, United States.

Density
640/km²
people per km²
Founded
1785

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 47°F in the first days to 42°F by the end.

A typical December day in Clarksburg reaches about 44°F in the afternoon and slips back to 30°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 30°F and 59°F. Set against its neighbours, December runs about 9°F cooler than November and about 4°F warmer than January.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
14833
24733
34733
44733
54632
64632
74632
84531
94531
104531
114431
124431
134431
144430
154430
164430
174330
184330
194329
204329
214329
224329
234329
244229
254229
264229
274229
284228
294228
304228
314228

How December really feels in Clarksburg

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 31 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
31
wind chill below the day's low

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

Clarksburg weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan40° / 26°4.113.679.60.0
Feb43° / 28°3.912.35.610.50.5
Mar53° / 35°4.814.53.811.72.6
Apr64° / 45°4.814.40.9135.0
May71° / 53°5.615.5014.15.7
Jun78° / 61°5.314.5014.76.0
Jul81° / 65°5.615.9014.55.7
Aug80° / 63°4.212.1013.56.2
Sep75° / 57°4.110.7012.36.8
Oct64° / 46°3.710.50.2115.7
Nov53° / 37°3.710.71.79.83.0
Dec44° / 30°4.212.94.89.30.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% 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 71%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23169
33169
43070
52971
62971
72971
82872
92773
102773
112773
122773
132773
142773
152872
162872
172971
182971
192971
202971
212971
223070
232971
242971
252971
262971
272971
282971
292872
302971
312872

Chance of precipitation in December

Any precipitationSnow

Clarksburg gets around 4.2 in of rain and snow over 12.9 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 41% and peaks near 44% on the wettest days, and about 5 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
14211
24311
34312
44312
54312
64413
74413
84413
94414
104314
114314
124314
134215
144215
154215
164115
174115
184115
194116
204016
214016
224017
233917
243917
253917
263917
273917
284018
294018
304118
314119

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

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
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 24 min at the start of December to 9 h 18 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 4:54 PM to 5:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.47:284:54
29.47:294:54
39.47:304:54
49.47:314:54
59.47:324:54
69.47:334:54
79.37:334:54
89.37:344:54
99.37:354:54
109.37:364:54
119.37:374:54
129.37:374:54
139.37:384:54
149.37:394:54
159.37:394:55
169.27:404:55
179.27:414:55
189.27:414:56
199.27:424:56
209.27:424:56
219.27:434:57
229.27:434:57
239.27:444:58
249.27:444:58
259.27:454:59
269.27:454:59
279.27:455:00
289.27:465:01
299.37:465:01
309.37:465:02
319.37:465:03

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.61 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.61 kWh/m² to a high of 6 kWh/m² in June across the year — December's 1.61 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.7Dim
31.7Dim
41.7Dim
51.7Dim
61.6Dim
71.6Dim
81.6Dim
91.6Dim
101.6Dim
111.6Dim
121.6Dim
131.6Dim
141.6Dim
151.6Dim
161.6Dim
171.6Dim
181.6Dim
191.6Dim
201.6Dim
211.6Dim
221.6Dim
231.6Dim
241.6Dim
251.6Dim
261.6Dim
271.6Dim
281.6Dim
291.6Dim
301.6Dim
311.6Dim
Planning a trip in December

Is December a good time to visit Clarksburg?

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

0.7
Sightseeing
10th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Clarksburg.

What to pack for Clarksburg in December

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

In December, Clarksburg sees daytime highs around 44°F and nights near 30°F. Pack a warm layer. Worth having: a heavy coat and rain gear. About 13 days see rain.

a warm layera heavy coatrain gear

UV index in Clarksburg in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Clarksburg peaks around June 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 19UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Clarksburg 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 Clarksburg is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1116 µg/m³Nov 216 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar9Good
Apr10Good
May12Moderate
Jun15Moderate
Jul16Moderate
Aug13Moderate
Sep10Good
Oct6Good
Nov6Good
Dec6Good
Location & terrain

Where is Clarksburg?

Clarksburg sits at 39.3°N, 80.3°W, 994 ft above sea level, in United States. The nearest listed city is Fairmont, 18 mi away.

Topography around Clarksburg

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

Within 2 miles, the terrain around Clarksburg has only modest variations in elevation — a maximum elevation change of 604 ft around an average of 1,109 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 991 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,661 ft.

The land around Clarksburg is covered by trees (69%) within 2 miles, trees (77%) and grassland (20%) within 10 miles, and trees (90%) within 50 miles.

2 miles
604 ft
10 miles
991 ft
50 miles
3,661 ft
treesgrasslandartificial surfaces
December weather nearby: Fairmont 18 mi · Morgantown 32 mi · Wheeling 58 mi · Parkersburg 65 mi · Bethel Park 74 mi · Upper Saint Clair 74 mi · Baldwin 76 mi · Mount Lebanon 76 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 Clarksburg (39.2807°, -80.3445°, elevation 994 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).