Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
During Martinsburg's transition into December, the average high-temperature lessens, moving from a cool 52°F (11.1°C) in November to a frosty 42.8°F (6°C). Throughout December, Martinsburg anticipates an average low-temperature of 29.8°F (-1.2°C).Humidity
The months with the highest humidity in Martinsburg, West Virginia, are May, October and December, with an average relative humidity of 78%.Rainfall
In Martinsburg, in December, it is raining for 6.9 days, with typically 0.87" (22mm) of accumulated precipitation. In Martinsburg, during the entire year, the rain falls for 117.3 days and collects up to 12.24" (311mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Martinsburg, West Virginia. In Martinsburg, in December, during 3.3 snowfall days, 0.83" (21mm) of snow is typically accumulated. Throughout the year, in Martinsburg, there are 17.1 snowfall days, and 4.69" (119mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 4:48 pm. On the last day of December, in Martinsburg, sunrise is at 7:31 am and sunset at 4:58 pm EST.
Sunshine
In Martinsburg, the average sunshine in December is 5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
How cold is it in Martinsburg in December?
What is the most humid month in Martinsburg?
What is the average humidity in December in Martinsburg?
How much does it rain in Martinsburg in December?
How many days does it snow in December in Martinsburg?
What is the month with the shortest days in Martinsburg?
How many hours of daylight does Martinsburg have in December?
What time are sunrise and sunset in December in Martinsburg?
How long on average sun shines in December in Martinsburg?
When is the lowest UV index in Martinsburg?
How high is the UV index in December in Martinsburg?
Average temperature in December
Martinsburg, WV
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 29.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Martinsburg, WV
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Martinsburg, WV
- Average wind speed in December: 6.4mph
The windiest month (with the highest average wind speed) is March (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Martinsburg, WV
- Average humidity in December: 78%
The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Martinsburg, WV
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Martinsburg, WV
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Martinsburg, WV
- Average snowfall in December: 0.83"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Martinsburg, WV
- Average snowfall days in December: 3.3 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Martinsburg, WV
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Martinsburg, WV
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (14.6 days).
Average UV index in December
Martinsburg, WV
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Martinsburg, WV
- Average cloud cover in December: 48
The months with the most cloud cover are January, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Martinsburg, WV
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).
Martinsburg, West Virginia, USA
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