Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
A modest decline in the average high-temperature is seen during December, decreasing from a mild 57.2°F (14°C) in November to a frosty 49.5°F (9.7°C). Greenback observes an average nighttime low-temperature of 35.4°F (1.9°C) during the month of December.Humidity
The most humid month is December, with an average relative humidity of 79%.Rainfall
In Greenback, during December, the rain falls for 13.6 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Greenback, during the entire year, the rain falls for 171.1 days and collects up to 32.24" (819mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Greenback, in December, during 2.5 snowfall days, 0.39" (10mm) of snow is typically accumulated. In Greenback, during the entire year, snow falls for 15 days and aggregates up to 2.52" (64mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Greenback.On the first day of the month, sunrise is at 7:28 am and sunset at 5:23 pm. On the last day of December, in Greenback, Tennessee, sunrise is at 7:46 am and sunset at 5:33 pm EST.
Sunshine
The average sunshine in December in Greenback is 5.2h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Greenback. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Opt for tightly woven and loose clothing to enhance protection from the Sun. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Greenback in December?
What is the most humid month in Greenback?
What is the average humidity in December in Greenback?
How many days does it rain in December in Greenback?
How many days does it snow in December in Greenback?
What is the month with the shortest days in Greenback?
What is the average length of the day in December in Greenback?
When is the sunrise / sunset in December in Greenback?
How long on average sun shines in December in Greenback?
What is the month with the lowest UV index in Greenback?
What is the UV index intensity in December in Greenback?
Average temperature in December
Greenback, TN
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Greenback, 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
Greenback, TN
- Average wind speed in December: 5.4mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Greenback, 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 (74%).
Average rainfall in December
Greenback, TN
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is July (3.7").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Greenback, TN
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in December
Greenback, TN
- Average snowfall in December: 0.39"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Greenback, TN
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (4.7 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
Greenback, TN
- Average daylight in December: 9h and 5min
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 1min
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
Greenback, TN
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.5 days).
Average UV index in December
Greenback, 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
Greenback, TN
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Greenback, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
Greenback, Tennessee, USA
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