December weather forecastForest Highlands, TN
December
Weather in December
The first month of the winter, December, is also a fresh month in Forest Highlands, Tennessee, with an average temperature fluctuating between 50.2°F (10.1°C) and 36.1°F (2.3°C).Temperature
The beginning of December brings a minor change in the average high-temperature, shifting from a mild 57.6°F (14.2°C) in November to a fresh 50.2°F (10.1°C). Forest Highlands registers a consistent average low-temperature of 36.1°F (2.3°C) during December.Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
The wettest months in Forest Highlands are February and December, with an average 1.18" (30mm) of rainfall.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Forest Highlands, during the entire year, snow falls for 2.9 days and aggregates up to 0.47" (12mm) 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 7:31 am and sunset at 5:29 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:39 pm EST.
Sunshine
With an average of 5h of sunshine, December has the least sunshine of the year.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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. 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
Forest Highlands, TN
- Average high temperature in December: 50.2°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in December
Forest Highlands, 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 (29.98"Hg).
Average wind speed in December
Forest Highlands, TN
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Forest Highlands, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, October and November (75%).
Average rainfall in December
Forest Highlands, TN
- Average rainfall in December: 1.18"
The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in December
Forest Highlands, TN
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).
Average snowfall in December
Forest Highlands, TN
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Forest Highlands, TN
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Forest Highlands, 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: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Forest Highlands, TN
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).
Average UV index in December
Forest Highlands, 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
Forest Highlands, TN
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Forest Highlands, TN
- Average visibility in December: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
