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
December's arrival signals a moderate reduction in the average high-temperature, easing from a moderate 55.6°F (13.1°C) in November to a chilly 47.5°F (8.6°C). December nights in Greeneville, Tennessee, cool down to an average low-temperature of 32.9°F (0.5°C).Humidity
December is the most humid month in Greeneville, with an average relative humidity of 79%.Rainfall
In Greeneville, during December, the rain falls for 13.8 days and regularly aggregates up to 3.23" (82mm) of precipitation. Throughout the year, there are 188.6 rainfall days, and 32.87" (835mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. December is the month with the most snowfall. Snow falls for 6 days and accumulates 4.09" (104mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December in Greeneville, sunrise is at 7:24 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:27 pm EST.
Sunshine
In Greeneville, the average sunshine in December is 5.5h.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 minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Boost your sun resistance with garments that are densely woven yet spacious. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the usual temperature for Greeneville in December?
What is the most humid month in Greeneville?
What is the average humidity in December in Greeneville?
How many days does it rain in December in Greeneville?
When does it snow the most in Greeneville?
How much does it snow in Greeneville in December?
What is the month with the shortest days in Greeneville?
How many hours of daylight does Greeneville have in December?
When are sunrise and sunset in December in Greeneville?
How long on average sun shines in December in Greeneville?
What are the months with the lowest UV index in Greeneville?
What is the UV index intensity in December in Greeneville?
Average temperature in December
Greeneville, TN
- Average high temperature in December: 47.5°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in December
Greeneville, 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
Greeneville, TN
- Average wind speed in December: 5.5mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Greeneville, TN
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in December
Greeneville, TN
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is February (3.39").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
Greeneville, TN
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in December
Greeneville, TN
- Average snowfall in December: 4.09"
The month with the highest snowfall is December (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Greeneville, TN
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Greeneville, TN
- Average daylight in December: 9h and 4min
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 3min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Greeneville, TN
- Average sunshine days in December: 12.8 days
The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in December
Greeneville, 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
Greeneville, TN
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Greeneville, TN
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Greeneville, Tennessee, USA
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