December weather forecastWalnut Hills, TN
December
Weather in December
The first month of the winter, December, is also a frosty month in Walnut Hills, Tennessee, with temperature in the range of an average low of 35.8°F (2.1°C) and an average high of 48.9°F (9.4°C).Temperature
December heralds a minor drop in average high-temperature, sliding from November's moderate 57.4°F (14.1°C) to a frosty 48.9°F (9.4°C). Walnut Hills's nighttime temperature during December is consistently averaged at a cold 35.8°F (2.1°C).Humidity
December is the most humid month, with an average relative humidity of 78%.Rainfall
In December, the rain falls for 11.7 days. Throughout December, 2.56" (65mm) of precipitation is accumulated. In Walnut Hills, during the entire year, the rain falls for 166.2 days and collects up to 33.86" (860mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Walnut Hills, Tennessee, during December, snow falls for 2 days and regularly aggregates up to 0.55" (14mm) of snow. In Walnut Hills, during the entire year, snow falls for 9.7 days and aggregates up to 3.15" (80mm) of snow.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 6:40 am and sunset at 4:33 pm. On the last day of December, sunrise is at 6:58 am and sunset at 4:43 pm CST.
Sunshine
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 minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Walnut Hills, TN
- Average high temperature in December: 48.9°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in December: 35.8°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Walnut Hills, TN
- Average pressure in December: 30.15"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
Walnut Hills, TN
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Walnut Hills, TN
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are June and October (73%).
Average rainfall in December
Walnut Hills, TN
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in December
Walnut Hills, TN
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in December
Walnut Hills, TN
- Average snowfall in December: 0.55"
The month with the highest snowfall is March (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Walnut Hills, TN
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is February (3.2 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
Walnut Hills, TN
- Average daylight in December: 9h and 48min
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 48min).
- 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 30min).
Average sunshine days in December
Walnut Hills, TN
- Average sunshine days in December: 17 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in December
Walnut Hills, 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
Walnut Hills, TN
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Walnut Hills, 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).
