December weather forecastCornelius, NC
December
Weather in December
December brings back the chill of winter in Cornelius. With temperatures ranging from 37.2°F (2.9°C) to 51.4°F (10.8°C), it has a stark contrast to the warm weather observed earlier in the year. As this month progresses, there's an evident reduction in daylight hours which characterizes winter solstice. By the close of the month and heading into January, temperatures continue to drop even further. With the onset of winter, December is an excellent time for indoor activities in Cornelius.Temperature
The arrival of December signals a subtle shift in temperature, down from a moderate 58.5°F (14.7°C) in November to a fresh 51.4°F (10.8°C). Cornelius throughout December, experiences an average nighttime temperature of 37.2°F (2.9°C).Humidity
With an average relative humidity of 76%, December is the most humid month.Rainfall
In Cornelius, during December, the rain falls for 11.3 days and regularly aggregates up to 3.23" (82mm) of precipitation. Throughout the year, there are 159.6 rainfall days, and 33.07" (840mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Cornelius. The month with the most snowfall is December, when snow falls for 0.8 days and typically aggregates up to 2.13" (54mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:14 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:21 pm EST.
Sunshine
With an average of 5.1h of sunshine, December has the least sunshine of the year.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cornelius, NC
- Average high temperature in December: 51.4°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (47.5°F).
- Average low temperature in December: 37.2°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in December
Cornelius, 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
Cornelius, NC
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Cornelius, NC
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are June and July (70%).
Average rainfall in December
Cornelius, NC
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is October (2.13").
Average rainfall days in December
Cornelius, NC
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
Cornelius, NC
- Average snowfall in December: 2.13"
The month with the highest snowfall is December (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Cornelius, NC
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (2.4 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
Cornelius, NC
- Average daylight in December: 9h and 48min
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 48min).
- Average sunshine in December: 5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Cornelius, NC
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11 days).
Average UV index in December
Cornelius, 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 and December (UV index 2).
Average cloud cover in December
Cornelius, NC
- Average cloud cover in December: 44
The months with the most cloud cover are February, March and December (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in December
Cornelius, 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).
