December weather forecastSpeed, WV
December
Weather in December
The first month of the winter, December, is also a frosty month in Speed, West Virginia, with temperature in the range of an average high of 43.2°F (6.2°C) and an average low of 31.6°F (-0.2°C).Temperature
The transition into December involves a decrease in the average high-temperature, falling from a fresh 52.3°F (11.3°C) in November to a chilly 43.2°F (6.2°C). Speed, in December, experiences an average temperature of 31.6°F (-0.2°C) at night.Humidity
The average relative humidity in December in Speed is 81%.Rainfall
In Speed, West Virginia, in December, during 13.6 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. In Speed, during the entire year, the rain falls for 186.1 days and collects up to 36.3" (922mm) of precipitation.Snowfall
Months with snowfall in Speed are January through May, October through December. In Speed, during December, snow falls for 10.1 days and regularly aggregates up to 3.86" (98mm) of snow. In Speed, during the entire year, snow falls for 46.8 days and aggregates up to 20.04" (509mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Speed.On the first day of the month, sunrise is at 7:25 am and sunset at 5:04 pm. On the last day of December, in Speed, West Virginia, sunrise is at 7:43 am and sunset at 5:14 pm EST.
Sunshine
In Speed, the average sunshine in December is 4h.UV index
The months with the lowest UV index in Speed are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Speed, WV
- Average high temperature in December: 43.2°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 (37.8°F).
- Average low temperature in December: 31.6°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Speed, 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 (29.97"Hg).
Average wind speed in December
Speed, WV
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
Speed, WV
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are June and August (76%).
Average rainfall in December
Speed, WV
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in December
Speed, WV
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is November (11.5 days).
Average snowfall in December
Speed, WV
- Average snowfall in December: 3.86"
The month with the highest snowfall is January (5.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Speed, WV
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Speed, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Speed, WV
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (7.9 days).
Average UV index in December
Speed, 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 and December (UV index 2).
Average cloud cover in December
Speed, WV
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Speed, WV
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The month with the lowest visibility is January (4mi).
