December weather forecastRennbore, TN
December
Weather in December
The first month of the winter, December, is also a frosty month in Rennbore, Tennessee, with an average temperature varying between 49.1°F (9.5°C) and 35.4°F (1.9°C).Temperature
The shift from November to December coincides with a small decrease in the average high-temperature, down to a chilly 49.1°F (9.5°C) from a refreshing 57°F (13.9°C). An average temperature of 35.4°F (1.9°C) is recorded during the nights in December.Humidity
The most humid month is December, with an average relative humidity of 79%.Rainfall
In Rennbore, in December, it is raining for 14.2 days, with typically 3.86" (98mm) of accumulated precipitation. In Rennbore, during the entire year, the rain falls for 177.6 days and collects up to 37.91" (963mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Rennbore, Tennessee. In Rennbore, in December, snow falls for 3.5 days, with typically accumulated 0.83" (21mm) of snow. Throughout the year, in Rennbore, there are 19 snowfall days, and 5.59" (142mm) of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:28 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:32 pm EST.
Sunshine
In December, the average sunshine is 5.2h.UV index
The months with the lowest UV index in Rennbore, Tennessee, 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 unsafe exposure to UV radiation for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rennbore, TN
- Average high temperature in December: 49.1°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in December
Rennbore, TN
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Rennbore, TN
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in December
Rennbore, TN
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).
Average rainfall in December
Rennbore, TN
- Average rainfall in December: 3.86"
The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Rennbore, TN
- Average rainfall days in December: 14.2 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in December
Rennbore, TN
- Average snowfall in December: 0.83"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rennbore, TN
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (5.5 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
Rennbore, 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: 5h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Rennbore, TN
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in December
Rennbore, 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
Rennbore, TN
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Rennbore, TN
- Average visibility in December: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).





