Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Cary's December weather shows a modest shift in high-temperatures, falling from November's mild 59.4°F (15.2°C) to a fresh 52.3°F (11.3°C). An average low-temperature of 38.1°F (3.4°C) is observed during December nights.Humidity
The most humid month is December, with an average relative humidity of 76%.Rainfall
In Cary, in December, during 10.7 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Cary, during the entire year, the rain falls for 161.9 days and collects up to 31.18" (792mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Cary, in December, snow falls for 0.8 days, with typically accumulated 0.67" (17mm) of snow. In Cary, during the entire year, snow falls for 5.9 days and aggregates up to 4.37" (111mm) 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 December in Cary, sunrise is at 7:07 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:11 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 of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 3 in December leads to these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the most humid month?
What is the average humidity in December?
How much does it rain in Cary in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Cary have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Cary have in December?
How high is the UV index in December?
Average temperature in December
Cary, 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
Cary, 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
Cary, 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
Cary, 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
Cary, 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
Cary, 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
Cary, 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
Cary, 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
Cary, NC
- Average daylight in December: 9h and 5min
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 3min
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
Cary, 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
Cary, 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
Cary, 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
Cary, 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).
Cary, North Carolina, USA
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