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
In December, the average high-temperature decreases from a wintry 41.9°F (5.5°C) in November to a subzero cold 31.1°F (-0.5°C). Martinsburg's nocturnal average in December closely mirrors its daytime temperatures, settling at a still freezing cold 22.1°F (-5.5°C).Humidity
In Martinsburg, the average relative humidity in December is 87%.Rainfall
In December, the rain falls for 10.9 days. Throughout December, 3.78" (96mm) of precipitation is accumulated. In Martinsburg, New York, during the entire year, the rain falls for 174 days and collects up to 40.2" (1021mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Martinsburg, during December, snow falls for 18.4 days and regularly aggregates up to 12.76" (324mm) of snow. In Martinsburg, during the entire year, snow falls for 98.6 days and aggregates up to 60.59" (1539mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:16 am and sunset at 4:25 pm. On the last day of December, in Martinsburg, sunrise is at 7:35 am and sunset at 4:34 pm EST.
Sunshine
In Martinsburg, New York, the average sunshine in December is 2.8h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. 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 of 1 during December leads to these instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Frequently asked questions
How cold is it in Martinsburg in December?
What is the average humidity in December in Martinsburg?
How much does it rain in Martinsburg in December?
How much does it snow in Martinsburg in December?
What is the month with the shortest days in Martinsburg?
What is the average length of the day in December in Martinsburg?
When is the sunrise / sunset in December in Martinsburg?
How long on average sun shines in December in Martinsburg?
What is the month with the lowest UV index in Martinsburg?
How high is the UV index in December in Martinsburg?
Average temperature in December
Martinsburg, NY
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in December
Martinsburg, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Martinsburg, NY
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Martinsburg, NY
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Martinsburg, NY
- Average rainfall in December: 3.78"
The wettest month (with the highest rainfall) is October (4.17").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in December
Martinsburg, NY
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is August (18.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in December
Martinsburg, NY
- Average snowfall in December: 12.76"
The month with the highest snowfall is January (14.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Martinsburg, NY
- Average snowfall days in December: 18.4 days
The month with the highest number of snowfall days is January (22 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Martinsburg, NY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 2h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in December
Martinsburg, NY
- Average sunshine days in December: 7.4 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (4.7 days).
Average UV index in December
Martinsburg, NY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Martinsburg, NY
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Martinsburg, NY
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Martinsburg, New York, USA
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