December weather forecastSpeedwell, VA
December
Weather in December
December, the first month of the winter in Speedwell, is also a frosty month, with an average temperature varying between 30.2°F (-1°C) and 44.1°F (6.7°C).Temperature
December signifies a minor drop in average high-temperature, transitioning from a fresh 52°F (11.1°C) in November to a chilly 44.1°F (6.7°C). The average temperature in Speedwell drops to a freezing cold 30.2°F (-1°C) during the night in the month of December.Humidity
In December, the average relative humidity is 80%.Rainfall
In Speedwell, in December, during 11 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Speedwell, during the entire year, the rain falls for 186.9 days and collects up to 30.12" (765mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Speedwell. December is the month with the most snowfall in Speedwell. Snow falls for 7.4 days and accumulates 6.22" (158mm) of snow.Daylight
December has the shortest days of the year in Speedwell, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 5:08 pm. On the last day of December, in Speedwell, sunrise is at 7:37 am and sunset at 5:18 pm EST.
Sunshine
The average sunshine in December in Speedwell is 5.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Speedwell. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Observe! Snow reflection can nearly intensify 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
Speedwell, VA
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in December
Speedwell, VA
- 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 (29.99"Hg).
Average wind speed in December
Speedwell, VA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Speedwell, VA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April, June, July and November (77%).
Average rainfall in December
Speedwell, VA
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Speedwell, VA
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in December
Speedwell, VA
- Average snowfall in December: 6.22"
The month with the highest snowfall is December (6.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Speedwell, VA
- Average snowfall days in December: 7.4 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Speedwell, VA
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Speedwell, VA
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in December
Speedwell, VA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Speedwell, VA
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 38).
Average visibility in December
Speedwell, VA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).
