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
The onset of December entails a subtle temperature shift, as the average high-temperature eases from an enjoyable 61.3°F (16.3°C) in November to a cool 53.8°F (12.1°C). Collinsville's nighttime temperature in December falls to an average of 39.7°F (4.3°C).Humidity
With an average relative humidity of 77%, December is the most humid month.Rainfall
In Collinsville, in December, during 13.3 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. Throughout the year, in Collinsville, there are 182.9 rainfall days, and 40.39" (1026mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In December, it is snowing for 0.3 days. Throughout December, 0.12" (3mm) of snow is accumulated. In Collinsville, during the entire year, snow falls for 2.4 days and aggregates up to 1.5" (38mm) of snow.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:23 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:38 pm EST.
Sunshine
The month with the least sunshine in Collinsville is December, with an average of 5.1h of sunshine.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 low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 during December translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Collinsville?
What is the most humid month in Collinsville?
What is the average humidity in December in Collinsville?
How many days does it rain in December in Collinsville?
How much does it snow in Collinsville in December?
What is the month with the shortest days in Collinsville?
How many hours of daylight does Collinsville have in December?
What time are sunrise and sunset in December in Collinsville?
What is the month with the least sunshine in Collinsville?
How long on average sun shines in December in Collinsville?
When is the lowest UV index in Collinsville?
What is the UV index reading in December in Collinsville?
Average temperature in December
Collinsville, GA
- Average high temperature in December: 53.8°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in December: 39.7°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in December
Collinsville, GA
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Collinsville, GA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Collinsville, GA
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Collinsville, GA
- Average rainfall in December: 3.7"
The wettest month (with the highest rainfall) is August (5.35").
The driest month (with the least rainfall) is October (2.2").
Average rainfall days in December
Collinsville, GA
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is July (22.6 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
Collinsville, GA
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Collinsville, GA
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Collinsville, GA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 1min
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
Collinsville, GA
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in December
Collinsville, GA
- 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
Collinsville, GA
- Average cloud cover in December: 45
The months with the most cloud cover are February and December (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Collinsville, GA
- 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).
Collinsville, Georgia, USA
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