Martinsburg weather in December

In December, Martinsburg sees average daytime highs of 44°F and overnight lows near 30°F, with 3.3 in of precipitation across 8.6 wet days and about 9.3 hours of daylight. It is the 10th-warmest and 7th-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 26% 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 Martinsburg's 9th-clearest and 5th-windiest month. For the whole year in context, see Martinsburg's year-round climate.

Daytime high
44°
10th warmest
Overnight low
30°
3rd coldest
Precipitation
3.3 in
8.6 wet days
Daylight
9 h 12 min
7:31 AM – 4:45 PM
Cloud cover
64%
9th clearest
Wind
6 mph
5th windiest
Solar energy
1.84 kWh/m²
Travel score
0.7
out of 10

Martinsburg is city in West Virginia, United States.

Density
1,026/km²
people per km²
Founded
1778

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 Martinsburg 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 32°F and 57°F. Set against its neighbours, December runs about 10°F cooler than November and about 4°F warmer than January.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
14833
24833
34733
44732
54632
64632
74632
84531
94531
104531
114431
124430
134430
144430
154430
164330
174329
184329
194329
204329
214329
224229
234229
244228
254228
264228
274228
284228
294228
304228
314228

How December really feels in Martinsburg

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.

Martinsburg weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan40° / 26°3.08.83.69.50.0
Feb43° / 27°2.78.33.510.40.6
Mar52° / 34°3.810.12.511.72.8
Apr64° / 45°3.610.80.2135.6
May73° / 54°3.911.7014.16.4
Jun82° / 63°3.410.5014.75.9
Jul87° / 68°3.410.5014.54.8
Aug85° / 66°2.89.5013.55.4
Sep78° / 59°4.19.2012.36.9
Oct66° / 47°3.37.90116.3
Nov54° / 37°3.07.60.59.83.4
Dec44° / 30°3.38.62.39.30.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24258
34258
44159
54060
63961
73961
83862
93961
103862
113862
123862
133961
143961
153961
163961
173961
183961
194060
204060
214060
224159
234258
244159
254159
264357
274357
284357
294258
304258
314258

Chance of precipitation in December

Any precipitationSnow

Martinsburg gets around 3.3 in of rain and snow over 8.6 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 28% and peaks near 30% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1295
2296
3296
4296
5297
6297
7297
8298
9298
10308
11309
12309
13309
14309
15299
16299
17299
18298
19298
20288
21288
22278
23277
24267
25267
26267
27267
28267
29267
30278
31278

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4982
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
241000
251000
261000
271000
281000
291000
301000
311000

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
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
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 7:19 AM to 7:37 AM, and sunset from 4:44 PM to 4:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.47:194:44
29.47:204:44
39.47:214:44
49.47:224:44
59.47:234:44
69.37:244:44
79.37:244:44
89.37:254:44
99.37:264:44
109.37:274:44
119.37:284:44
129.37:284:44
139.37:294:44
149.27:304:44
159.27:304:45
169.27:314:45
179.27:324:45
189.27:324:46
199.27:334:46
209.27:334:46
219.27:344:47
229.27:344:47
239.27:354:48
249.27:354:48
259.27:364:49
269.27:364:49
279.27:364:50
289.27:374:51
299.27:374:51
309.27:374:52
319.37:374:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.84 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.84 kWh/m² to a high of 6.14 kWh/m² in June across the year — December's 1.84 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.9Dim
21.9Dim
31.9Dim
41.9Dim
51.9Dim
61.9Dim
71.9Dim
81.8Dim
91.8Dim
101.8Dim
111.8Dim
121.8Dim
131.8Dim
141.8Dim
151.8Dim
161.8Dim
171.8Dim
181.8Dim
191.8Dim
201.8Dim
211.8Dim
221.8Dim
231.8Dim
241.8Dim
251.9Dim
261.9Dim
271.9Dim
281.9Dim
291.9Dim
301.9Dim
311.9Dim
Planning a trip in December

Is December a good time to visit Martinsburg?

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 Martinsburg.

What to pack for Martinsburg in December

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

In December, Martinsburg sees daytime highs around 44°F and nights near 30°F. Pack a warm layer. Worth having: a heavy coat and rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

UV index in Martinsburg 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 Martinsburg peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highHighModerateLowJun 22UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Martinsburg 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 Martinsburg is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1316 µg/m³Nov 137 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar12Good
Apr12Good
May14Moderate
Jun16Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov7Good
Dec8Good
Location & terrain

Where is Martinsburg?

Martinsburg sits at 39.5°N, 78.0°W, 453 ft above sea level, in United States. The nearest listed city is Hagerstown, 18 mi away.

Topography around Martinsburg

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

Within 2 miles, the terrain around Martinsburg has only modest variations in elevation — a maximum elevation change of 518 ft around an average of 492 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,526 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,386 ft.

The land around Martinsburg is covered by trees (52%), artificial surfaces (25%) and grassland (21%) within 2 miles, trees (57%) and grassland (30%) within 10 miles, and trees (67%) and grassland (20%) within 50 miles.

2 miles
518 ft
10 miles
1,526 ft
50 miles
3,386 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Hagerstown 18 mi · Winchester 22 mi · Ballenger Creek 29 mi · Frederick 30 mi · Leesburg 32 mi · Chambersburg 37 mi · Ashburn 39 mi · Front Royal 39 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 Martinsburg (39.4562°, -77.9639°, elevation 453 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).