December weather forecastGranville, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Granville, Tennessee, with an average temperature fluctuating between 48.6°F (9.2°C) and 35.2°F (1.8°C).Temperature
As November transitions into December, Granville sees a gentle drop in the average high-temperature, transitioning from a mild 56.7°F (13.7°C) to a chilly 48.6°F (9.2°C). Granville, in December, witnesses an average low-temperature of 35.2°F (1.8°C).Humidity
With an average relative humidity of 80%, December is the most humid month in Granville.Rainfall
In Granville, during December, the rain falls for 13.5 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Granville, during the entire year, the rain falls for 177.2 days and collects up to 40.94" (1040mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Granville, during December, snow falls for 2.6 days and regularly aggregates up to 0.39" (10mm) of snow. Throughout the year, there are 14 snowfall days, and 3.58" (91mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:36 am and sunset at 4:28 pm. On the last day of December, sunrise is at 6:54 am and sunset at 4:38 pm CST.
Sunshine
In Granville, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Granville, TN
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (43.7°F).
- Average low temperature in December: 35.2°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).
Average pressure in December
Granville, 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 (29.97"Hg).
Average wind speed in December
Granville, TN
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Granville, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in December
Granville, TN
- Average rainfall in December: 3.27"
The wettest months (with the highest rainfall) are February and July (4.17").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in December
Granville, TN
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in December
Granville, TN
- Average snowfall in December: 0.39"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Granville, TN
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Granville, TN
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Granville, TN
- Average sunshine days in December: 15.2 days
The months with the most sunshine days are October and November (18 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Granville, TN
- 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, February and December (UV index 2).
Average cloud cover in December
Granville, TN
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Granville, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, April, June, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July, August and September (5mi).





