December weather forecastCollierville, TN
December
Weather in December
December sees the return of the cold in Collierville with average temperatures falling between 37.8°F (3.2°C) at night and 50.9°F (10.5°C) during the day. The average daylight hours clock the shortest time, coming to approximately 9.8 hours. There is a slight chance of snowfall over the course of the month, contributing to about two days of white grounds. The year concludes, mirroring the cold start of January, yet with a significant increase in precipitation reaching up to 3.19" (81mm).Temperature
The onset of December brings a small shift in high-temperatures, falling from a refreshing 58.8°F (14.9°C) in November to a fresh 50.9°F (10.5°C). During December, the average low-temperature is recorded at an icy 37.8°F (3.2°C).Humidity
In Collierville, the average relative humidity in December is 79%.Rainfall
In Collierville, during December, the rain falls for 11.6 days and regularly aggregates up to 3.19" (81mm) of precipitation. In Collierville, during the entire year, the rain falls for 153.4 days and collects up to 31.34" (796mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Collierville, Tennessee, in December, during 1.3 snowfall days, 0.24" (6mm) of snow is typically accumulated. Throughout the year, there are 6.8 snowfall days, and 1.93" (49mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 6:48 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:06 am and sunset at 4:57 pm CST.
Sunshine
In December, the average sunshine is 4.9h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 3 suggests these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Collierville, TN
- Average high temperature in December: 50.9°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in December: 37.8°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in December
Collierville, TN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Collierville, TN
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is February (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in December
Collierville, TN
- Average humidity in December: 79%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Collierville, TN
- Average rainfall in December: 3.19"
The wettest month (with the highest rainfall) is February (3.39").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in December
Collierville, TN
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is August (16.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in December
Collierville, TN
- Average snowfall in December: 0.24"
The months with the highest snowfall are January and February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Collierville, TN
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is January (2.1 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Collierville, TN
- 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: 4h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Collierville, TN
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (11.7 days).
Average UV index in December
Collierville, TN
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Collierville, TN
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in December
Collierville, TN
- 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).
