December weather forecastMarmor, TN
December
Weather in December
December, the first month of the winter in Marmor, is also a frosty month, with temperature in the range of an average high of 49.1°F (9.5°C) and an average low of 35.4°F (1.9°C).Temperature
December brings a slight decrease in temperature, down from a mild 57°F (13.9°C) in November to a frosty 49.1°F (9.5°C). Throughout December, Marmor encounters an average temperature drop to an icy 35.4°F (1.9°C).Humidity
The most humid month is December, with an average relative humidity of 79%.Rainfall
In Marmor, in December, during 14.2 rainfall days, 3.86" (98mm) of precipitation is typically accumulated. Throughout the year, there are 177.6 rainfall days, and 37.91" (963mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 3.5 days. Throughout December, 0.83" (21mm) of snow is accumulated. Throughout the year, there are 19 snowfall days, and 5.59" (142mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 5:22 pm. On the last day of December, sunrise is at 7:46 am and sunset at 5:33 pm EST.
Sunshine
The average sunshine in December is 5.2h.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 reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Marmor, 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
Marmor, 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
Marmor, 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
Marmor, 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
Marmor, 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
Marmor, 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
Marmor, 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
Marmor, 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
Marmor, 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 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
Marmor, 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
Marmor, 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
Marmor, 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
Marmor, 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).
