December weather forecastRockwood, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Rockwood, Tennessee, with an average temperature fluctuating between 48.6°F (9.2°C) and 34.7°F (1.5°C).Temperature
A minor decrease in the average high-temperature is observed during December, shifting from a refreshing 56.1°F (13.4°C) in November to a chilly 48.6°F (9.2°C). In the month of December, Rockwood witnesses a consistent average low-temperature of 34.7°F (1.5°C).Humidity
December is the most humid month in Rockwood, with an average relative humidity of 80%.Rainfall
In December, the rain falls for 13.5 days. Throughout December, 3.62" (92mm) of precipitation is accumulated. Throughout the year, there are 176.6 rainfall days, and 39.41" (1001mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Rockwood, during December, snow falls for 2.2 days and regularly aggregates up to 0.63" (16mm) of snow. In Rockwood, Tennessee, during the entire year, snow falls for 11.6 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 7:31 am and sunset at 5:25 pm. On the last day of December, sunrise is at 7:48 am and sunset at 5:35 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 4.9h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 2 in December transforms into the following instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rockwood, TN
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (43.7°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in December
Rockwood, 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
Rockwood, TN
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Rockwood, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Rockwood, TN
- Average rainfall in December: 3.62"
The wettest month (with the highest rainfall) is July (4.29").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in December
Rockwood, TN
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (10.7 days).
Average snowfall in December
Rockwood, TN
- Average snowfall in December: 0.63"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Rockwood, TN
- Average snowfall days in December: 2.2 days
The months with the highest number of snowfall days are January and February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Rockwood, 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 54min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Rockwood, TN
- Average sunshine days in December: 15.5 days
The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in December
Rockwood, 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
Rockwood, TN
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Rockwood, TN
- Average visibility in December: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
