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
With the onset of December, Moundsville experiences a modest temperature adjustment, with the average high-temperature receding from a frosty 49.6°F (9.8°C) in November to a wintry 40.5°F (4.7°C). The nights of December anticipate an average low-temperature of 28.8°F (-1.8°C).Humidity
In December, the average relative humidity is 83%.Rainfall
In Moundsville, in December, during 13.1 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 186.2 rainfall days, and 35.16" (893mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Moundsville, West Virginia, in December, snow falls for 10.4 days, with typically accumulated 3.19" (81mm) of snow. In Moundsville, during the entire year, snow falls for 50.6 days and aggregates up to 19.13" (486mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:26 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:44 am and sunset at 5:08 pm EST.
Sunshine
In Moundsville, the average sunshine in December is 3.6h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Moundsville have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Moundsville, WV
- Average high temperature in December: 40.5°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in December
Moundsville, WV
- Average pressure in December: 30.12"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
Moundsville, WV
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Moundsville, WV
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April and August (77%).
Average rainfall in December
Moundsville, WV
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Moundsville, WV
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (11.3 days).
Average snowfall in December
Moundsville, WV
- Average snowfall in December: 3.19"
The month with the highest snowfall is January (5.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Moundsville, WV
- Average snowfall days in December: 10.4 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Moundsville, WV
- 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 24min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Moundsville, WV
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in December
Moundsville, WV
- 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
Moundsville, WV
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Moundsville, WV
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Moundsville, West Virginia, USA
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