December weather forecastApex, NC
December
Weather in December
December draws the curtain on the year and welcomes the winter in Apex, North Carolina. Daytime temperatures drop between 38.1°F (3.4°C) and 52.3°F (11.3°C), displaying a clear break from the warm climate of previous months. As Apex swiftly drifts into January, the city braces for colder weather with marginal temperature variations and similar icy conditions. Remarkably, December records the least daylight hours of 9.8 hours. December rounds up Apex's weather cycle, showcasing a cold, snowy environment with shortened days and extended chilly nights.Temperature
December is characterized by a mild reduction in the average high-temperature, from a mild 59.4°F (15.2°C) in November to a fresh 52.3°F (11.3°C). During December, the temperature is averaged to a low of 38.1°F (3.4°C) at night.Humidity
December is the most humid month, with an average relative humidity of 76%.Rainfall
In Apex, in December, it is raining for 10.7 days, with typically 2.56" (65mm) of accumulated precipitation. In Apex, during the entire year, the rain falls for 161.9 days and collects up to 31.18" (792mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Apex, in December, snow falls for 0.8 days, with typically accumulated 0.67" (17mm) of snow. Throughout the year, there are 5.9 snowfall days, and 4.37" (111mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:07 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:25 am and sunset at 5:12 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.5h of sunshine.UV index
The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Apex, NC
- Average high temperature in December: 52.3°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 (48°F).
- Average low temperature in December: 38.1°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in December
Apex, NC
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Apex, NC
- Average wind speed in December: 6.4mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Apex, NC
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Apex, NC
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is October (2.17").
Average rainfall days in December
Apex, NC
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
Apex, NC
- Average snowfall in December: 0.67"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Apex, NC
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (2.3 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
Apex, 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 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
Apex, NC
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Apex, NC
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Apex, NC
- Average cloud cover in December: 41
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Apex, 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).
