December weather forecastGreenfields, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Greenfields, Tennessee, with an average temperature fluctuating between 32.9°F (0.5°C) and 47.3°F (8.5°C).Temperature
The shift from November to December includes a small decrease in the average high-temperature, from a moderate 55.9°F (13.3°C) to a frosty 47.3°F (8.5°C). An average nighttime temperature of 32.9°F (0.5°C) is observed during December.Humidity
The average relative humidity in December is 78%.Rainfall
In Greenfields, during December, the rain falls for 10.9 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Greenfields, during the entire year, the rain falls for 147.1 days and collects up to 23.46" (596mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Greenfields. In Greenfields, in December, snow falls for 2.7 days, with typically accumulated 1.38" (35mm) of snow. Throughout the year, there are 16.7 snowfall days, and 5.35" (136mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 5:14 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:24 pm EST.
Sunshine
In Greenfields, the average sunshine in December is 5.3h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Greenfields. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 2 in December leads to these guidelines:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Greenfields, TN
- Average high temperature in December: 47.3°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in December
Greenfields, TN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Greenfields, TN
- Average wind speed in December: 5.6mph
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
Greenfields, TN
- Average humidity in December: 78%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July, August, September and November (74%).
Average rainfall in December
Greenfields, TN
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in December
Greenfields, TN
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is November (8 days).
Average snowfall in December
Greenfields, TN
- Average snowfall in December: 1.38"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Greenfields, TN
- Average snowfall days in December: 2.7 days
The month with the highest number of snowfall days is January (5.2 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
Greenfields, TN
- Average daylight in December: 9h and 42min
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 42min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Greenfields, TN
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in December
Greenfields, 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
Greenfields, TN
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Greenfields, TN
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
