December weather forecastJacksonville, NC
December
Weather in December
December brings the cold of winter back, with temperatures dipping to a low average of 43.3°F (6.3°C), creating a chilly atmosphere. The shorter, darker days and colder winds mark a sharp deviation from the early year weather pattern. However, humidity surprisingly experiences a small peak, recording at 77% in winter's grip. Even though there's a marginal drop in rainfall from November, December still sees 1.73" (44mm) average precipitation. Reflecting typical winter weather, December in Jacksonville underscores the year's end with its colder temperatures and shorter days.Temperature
December in Jacksonville is characterized by a slight reduction in average high-temperature, easing from a refreshing 63.1°F (17.3°C) in November to a mild 57°F (13.9°C). In Jacksonville, December's nights observe an average temperature dip to a frosty 43.3°F (6.3°C).Humidity
The months with the highest humidity are August, September and December, with an average relative humidity of 77%.Rainfall
In Jacksonville, in December, it is raining for 10.2 days, with typically 1.73" (44mm) of accumulated precipitation. In Jacksonville, during the entire year, the rain falls for 158.7 days and collects up to 23.39" (594mm) of precipitation.Snowfall
In Jacksonville, snow does not fall in March through December.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:59 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:16 am and sunset at 5:09 pm EST.
Sunshine
The average sunshine in December is 5.6h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Jacksonville, North Carolina. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 3 in December leads to these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Jacksonville, NC
- Average high temperature in December: 57°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (52.9°F).
- Average low temperature in December: 43.3°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in December
Jacksonville, NC
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Jacksonville, NC
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Jacksonville, NC
- Average humidity in December: 77%
The months with the highest relative humidity are August, September and December (77%).
The months with the lowest relative humidity are January, February, March and April (73%).
Average rainfall in December
Jacksonville, NC
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Jacksonville, NC
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in December
Jacksonville, NC
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.35").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Jacksonville, NC
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Jacksonville, NC
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in December
Jacksonville, NC
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is August (6.7 days).
Average UV index in December
Jacksonville, NC
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Jacksonville, NC
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 28).
Average visibility in December
Jacksonville, 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).
