December weather forecastRoEllen, TN
December
Weather in December
The first month of the winter, December, is also a frosty month in RoEllen, Tennessee, with an average temperature fluctuating between 36.5°F (2.5°C) and 48.7°F (9.3°C).Temperature
The beginning of December brings a slight decrease in the average high-temperature, transitioning from a refreshing 57.4°F (14.1°C) in November to a frosty 48.7°F (9.3°C). An average temperature of 36.5°F (2.5°C) is recorded during the nights in December.Humidity
The average relative humidity in December is 78%.Rainfall
In RoEllen, during December, the rain falls for 12.1 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, there are 161.6 rainfall days, and 38.39" (975mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In RoEllen, in December, snow falls for 0.9 days, with typically accumulated 0.75" (19mm) of snow. Throughout the year, there are 7.6 snowfall days, and 4.61" (117mm) of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in RoEllen.On the first day of the month, sunrise is at 6:49 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:07 am and sunset at 4:53 pm CST.
Sunshine
The average sunshine in December is 4.9h.UV index
February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
RoEllen, TN
- Average high temperature in December: 48.7°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 (44.2°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in December
RoEllen, TN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
RoEllen, TN
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in December
RoEllen, TN
- Average humidity in December: 78%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
RoEllen, TN
- Average rainfall in December: 3.39"
The wettest months (with the highest rainfall) are February and April (4.29").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
RoEllen, TN
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in December
RoEllen, TN
- Average snowfall in December: 0.75"
The month with the highest snowfall is March (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
RoEllen, TN
- Average snowfall days in December: 0.9 days
The months with the highest number of snowfall days are January and February (2.5 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
RoEllen, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
RoEllen, TN
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (12.7 days).
Average UV index in December
RoEllen, TN
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are February and December (UV index 2).
Average cloud cover in December
RoEllen, TN
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in December
RoEllen, 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).
