December weather forecastMartinsville, VA
December
Weather in December
December ushers in winter in Martinsville, with temperatures reaching lows of 34.2°F (1.2°C), a notable drop from November's lowest average of 38.5°F (3.6°C). The landscapes wear a blanket of white, setting the stage for winter activities. It is indeed the time of the year that bestows the city with a magical charm. Despite the chill, the festive spirit of the holiday season keeps the atmosphere warm and spirited. As the year concludes, residents bundle up for January’s cold, marking a full cycle of a characteristic Martinsville weather year.Temperature
Martinsville in December experiences a gentle temperature dip, with average high-temperatures reducing from a refreshing 56.3°F (13.5°C) in November to a frosty 48.6°F (9.2°C). Throughout December, the average low-temperature dips to a cold 34.2°F (1.2°C).Humidity
The months with the highest humidity are May and December, with an average relative humidity of 76%.Rainfall
In Martinsville, in December, it is raining for 9.2 days, with typically 1.85" (47mm) of accumulated precipitation. In Martinsville, during the entire year, the rain falls for 132.1 days and collects up to 19.96" (507mm) of precipitation.Snowfall
January through March, May, November and December are months with snowfall. December is the month with the most snowfall. Snow falls for 1.1 days and accumulates 2.05" (52mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 5:03 pm. On the last day of December, sunrise is at 7:31 am and sunset at 5:13 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.6h of sunshine.UV index
January, February 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 low threat to health from exposure to the Sun's UV rays for the average person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Martinsville, VA
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (44.1°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Martinsville, 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 (29.98"Hg).
Average wind speed in December
Martinsville, VA
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Martinsville, VA
- Average humidity in December: 76%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Martinsville, VA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in December
Martinsville, VA
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (7 days).
Average snowfall in December
Martinsville, VA
- Average snowfall in December: 2.05"
The month with the highest snowfall is December (2.05").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in December
Martinsville, VA
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Martinsville, 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 36min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in December
Martinsville, VA
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.2 days).
Average UV index in December
Martinsville, VA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Martinsville, VA
- Average cloud cover in December: 39
The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Martinsville, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
