December weather forecastCalvin, WV
December
Weather in December
The first month of the winter, December, is also a wintry month in Calvin, West Virginia, with an average temperature fluctuating between 41.9°F (5.5°C) and 30°F (-1.1°C).Temperature
Calvin's progression into December involves a gentle drop in the average high-temperature, from a fresh 50.2°F (10.1°C) in November to a wintry 41.9°F (5.5°C). Calvin's temperature lowers to a mean of 30°F (-1.1°C) during the nights in December.Humidity
The average relative humidity in December is 82%.Rainfall
In December, in Calvin, the rain falls for 14.5 days. Throughout December, 3.58" (91mm) of precipitation is accumulated. In Calvin, during the entire year, the rain falls for 190.3 days and collects up to 36.93" (938mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Calvin, it is snowing for 12.2 days. Throughout December, 7.72" (196mm) of snow is accumulated. Throughout the year, there are 60.4 snowfall days, and 38.62" (981mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Calvin, West Virginia.On the first day of the month, sunrise is at 7:21 am and sunset at 5:02 pm. On the last day of December, sunrise is at 7:39 am and sunset at 5:12 pm EST.
Sunshine
In Calvin, West Virginia, the average sunshine in December is 4.3h.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Calvin, WV
- Average high temperature in December: 41.9°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 (36.5°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in December
Calvin, 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
Calvin, WV
- Average wind speed in December: 6.7mph
The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Calvin, WV
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are June, July, August and November (78%).
Average rainfall in December
Calvin, WV
- Average rainfall in December: 3.58"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Calvin, WV
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is May (23.3 days).
The month with the least rainy days is November (12.2 days).
Average snowfall in December
Calvin, WV
- Average snowfall in December: 7.72"
The month with the highest snowfall is January (8.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Calvin, WV
- Average snowfall days in December: 12.2 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Calvin, WV
- Average daylight in December: 9h and 30min
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 30min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Calvin, WV
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is May (6.1 days).
Average UV index in December
Calvin, WV
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Calvin, WV
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Calvin, 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).
