December weather forecastWinston-Salem, NC
December
Weather in December
December marks the peak of the winter season in Winston-Salem, with average temperatures dipping down to highs of 49.8°F (9.9°C) and lows of 35.8°F (2.1°C). The month records one of the highest snowfall measurements of 2.24in, and the highest relative humidity level of 75%. The city experiences the most prolonged nights and shortest daylight hours during this month. Despite the winter season, the city continues to thrive under shorter sunshine hours and lower UV index levels to close out the year on a chilly note.Temperature
With December's onset, the weather reveals a slight temperature decrease, transitioning from a mild 57°F (13.9°C) in November to a frosty 49.8°F (9.9°C). An average low-temperature of 35.8°F (2.1°C) is anticipated throughout the nights during December.Humidity
The months with the highest humidity are May and December, with an average relative humidity of 75%.Rainfall
In Winston-Salem, in December, it is raining for 10.9 days, with typically 2.95" (75mm) of accumulated precipitation. Throughout the year, there are 159 rainfall days, and 30.83" (783mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. The month with the most snowfall is December, when snow falls for 1 days and typically aggregates up to 2.24" (57mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:13 am and sunset at 5:06 pm. On the last day of December, sunrise is at 7:31 am and sunset at 5:16 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.5h 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 minimal health hazard from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Beware! Reflection from snow can magnify 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
Winston-Salem, NC
- Average high temperature in December: 49.8°F
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in December: 35.8°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in December
Winston-Salem, NC
- 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
Winston-Salem, NC
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Winston-Salem, NC
- Average humidity in December: 75%
The months with the highest relative humidity are May and December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Winston-Salem, NC
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is October (2.05").
Average rainfall days in December
Winston-Salem, NC
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in December
Winston-Salem, NC
- Average snowfall in December: 2.24"
The month with the highest snowfall is December (2.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Winston-Salem, NC
- Average snowfall days in December: 1 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Winston-Salem, NC
- Average daylight in December: 9h and 48min
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 48min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Winston-Salem, NC
- Average sunshine days in December: 18.4 days
The months with the most sunshine days are October and November (19.7 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in December
Winston-Salem, NC
- Average UV index in December: 2
The months with the highest UV index are May, 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
Winston-Salem, NC
- Average cloud cover in December: 41
The months with the most cloud cover are February and March (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in December
Winston-Salem, NC
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
