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
The arrival of December suggests a slight decrease in the average high-temperature, moving from a mild 56.5°F (13.6°C) in November to a chilly 48.9°F (9.4°C). In Robertsville, December is marked by an average low-temperature of 34.9°F (1.6°C).Humidity
The months with the highest humidity in Robertsville, Tennessee, are February and December, with an average relative humidity of 79%.Rainfall
In Robertsville, during December, the rain falls for 12.7 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Robertsville, during the entire year, the rain falls for 160.5 days and collects up to 33.11" (841mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Robertsville, in December, during 1.9 snowfall days, 0.47" (12mm) of snow is typically accumulated. Throughout the year, there are 11.9 snowfall days, and 4.06" (103mm) of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:29 am and sunset at 5:22 pm. On the last day of December, sunrise is at 7:47 am and sunset at 5:33 pm EST.
Sunshine
In Robertsville, the average sunshine in December is 5.1h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Robertsville?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Robertsville?
What time are sunrise and sunset in December?
How many hours of sunshine does Robertsville have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Robertsville, TN
- Average high temperature in December: 48.9°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 (44.4°F).
- Average low temperature in December: 34.9°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in December
Robertsville, 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
Robertsville, 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 (3.7mph).
Average humidity in December
Robertsville, TN
- Average humidity in December: 79%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is August (73%).
Average rainfall in December
Robertsville, TN
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is February (3.98").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Robertsville, TN
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in December
Robertsville, TN
- Average snowfall in December: 0.47"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Robertsville, TN
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is January (3.8 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
Robertsville, TN
- Average daylight in December: 9h and 5min
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: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Robertsville, TN
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in December
Robertsville, 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
Robertsville, TN
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in December
Robertsville, 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).
Robertsville, Tennessee, USA
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