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 Valley Grove, the beginning of December is marked by a lowered average high-temperature, shifting from November's chilly 49.1°F (9.5°C) to a cold 39.7°F (4.3°C). In December, the recorded average low-temperature is a subzero cold 28°F (-2.2°C).Humidity
The average relative humidity in December in Valley Grove is 83%.Rainfall
In Valley Grove, during December, the rain falls for 9.1 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Valley Grove, during the entire year, the rain falls for 147 days and collects up to 19.57" (497mm) of precipitation.Snowfall
Months with snowfall in Valley Grove are January through May, October through December. In Valley Grove, during December, snow falls for 5.9 days and regularly aggregates up to 1.89" (48mm) of snow. Throughout the year, there are 33.4 snowfall days, and 9.96" (253mm) of snow is accumulated.Daylight
The month with the shortest days in Valley Grove is December, with an average of 9h and 24min of daylight.On the first day of December in Valley Grove, sunrise is at 7:25 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:06 pm EST.
Sunshine
In Valley Grove, the average sunshine in December is 3.6h.UV index
The month with the lowest UV index is December, 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 the ordinary person.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. When the Sun is at its strongest around midday, find shade and limit exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
How cold is December in Valley Grove?
What is the average humidity in December in Valley Grove?
How much does it rain in Valley Grove in December?
How much does it snow in Valley Grove in December?
What is the month with the shortest days in Valley Grove?
What is the average length of the day in December in Valley Grove?
When are sunrise and sunset in December in Valley Grove?
How long on average sun shines in December in Valley Grove?
When is the lowest UV index in Valley Grove?
What is the UV index intensity in December in Valley Grove?
Average temperature in December
Valley Grove, WV
- Average high temperature in December: 39.7°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Valley Grove, WV
- Average pressure in December: 30.11"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
Valley Grove, WV
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity in December
Valley Grove, WV
- Average humidity in December: 83%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Valley Grove, WV
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
Valley Grove, WV
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in December
Valley Grove, WV
- Average snowfall in December: 1.89"
The months with the highest snowfall are February and March (2.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Valley Grove, WV
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Valley Grove, 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: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Valley Grove, WV
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in December
Valley Grove, WV
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Valley Grove, 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
Valley Grove, 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).
Valley Grove, West Virginia, USA
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