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 is characterized by a mild reduction in the average high-temperature, from a fresh 53.1°F (11.7°C) in November to a frosty 44.1°F (6.7°C). Foster, during the nights of December, experiences an average temperature drop to a wintry 32.2°F (0.1°C).Humidity
In December, the average relative humidity in Foster, West Virginia, is 81%.Rainfall
In Foster, West Virginia, in December, during 13.4 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. Throughout the year, there are 183.9 rainfall days, and 35.35" (898mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Foster. In Foster, in December, snow falls for 7.9 days, with typically accumulated 3.82" (97mm) of snow. In Foster, during the entire year, snow falls for 40.7 days and aggregates up to 19.45" (494mm) of snow.Daylight
December has the shortest days of the year in Foster, with an average of 9h and 36min of daylight.On the first day of December in Foster, sunrise is at 7:25 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:17 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Foster in December?
What is the average humidity in December in Foster?
How many days does it rain in December in Foster?
How many days does it snow in December in Foster?
What is the month with the shortest days in Foster?
What is the average length of the day in December in Foster?
When are sunrise and sunset in December in Foster?
How many hours of sunshine does Foster have in December?
What is the month with the lowest UV index in Foster?
What is the UV index reading in December in Foster?
Average temperature in December
Foster, WV
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 32.2°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in December
Foster, WV
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Foster, WV
- Average wind speed in December: 6.2mph
The windiest months (with the highest average wind speed) are January and February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Foster, WV
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are June, July, August and November (76%).
Average rainfall in December
Foster, WV
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Foster, WV
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is November (10.9 days).
Average snowfall in December
Foster, WV
- Average snowfall in December: 3.82"
The months with the highest snowfall are January and February (5.12").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Foster, WV
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Foster, WV
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Foster, WV
- Average sunshine days in December: 11.3 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in December
Foster, WV
- Average UV index in December: 2
The months with the highest UV index are 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
Foster, WV
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Foster, WV
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Foster, West Virginia, USA
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