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
December's arrival comes with a decrease in the average high-temperature, moving from a chilly 47.8°F (8.8°C) in November to an icy 38.3°F (3.5°C). In the month of December, the average low-temperature usually rests at a subzero cold 27°F (-2.8°C).Humidity
In Clarksburg, the average relative humidity in December is 85%.Rainfall
In Clarksburg, in December, it is raining for 12.5 days, with typically 3.03" (77mm) of accumulated precipitation. In Clarksburg, during the entire year, the rain falls for 183.4 days and collects up to 33.5" (851mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Clarksburg, in December, snow falls for 13.5 days, with typically accumulated 6.22" (158mm) of snow. In Clarksburg, Pennsylvania, during the entire year, snow falls for 64.7 days and aggregates up to 29.06" (738mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:22 am and sunset at 4:51 pm. On the last day of December, in Clarksburg, sunrise is at 7:40 am and sunset at 5:00 pm EST.
Sunshine
The average sunshine in December is 3.3h.UV index
December is the month with the lowest UV index in Clarksburg, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 1 in December leads to these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Clarksburg in December?
What is the average humidity in December in Clarksburg?
How much does it rain in Clarksburg in December?
How much does it snow in Clarksburg in December?
What is the month with the shortest days in Clarksburg?
What is the average length of the day in December in Clarksburg?
What time are sunrise and sunset in December in Clarksburg?
How many hours of sunshine does Clarksburg have in December?
What is the month with the lowest UV index in Clarksburg?
What is the UV index reading in December in Clarksburg?
Average temperature in December
Clarksburg, PA
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
Clarksburg, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Clarksburg, PA
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Clarksburg, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in December
Clarksburg, PA
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in December
Clarksburg, PA
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is January (10.3 days).
Average snowfall in December
Clarksburg, PA
- Average snowfall in December: 6.22"
The month with the highest snowfall is January (7.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Clarksburg, PA
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Clarksburg, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Clarksburg, PA
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is January (6.1 days).
Average UV index in December
Clarksburg, PA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Clarksburg, PA
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Clarksburg, PA
- 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).
Clarksburg, Pennsylvania, USA
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