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 is marked by a minor reduction in average high-temperature, sliding from a fresh 51.1°F (10.6°C) in November to a frosty 43.7°F (6.5°C). During the month of December, Roan Mountain anticipates a mean low-temperature of 30.6°F (-0.8°C).Humidity
February, March, May and December, with an average relative humidity of 80%, are the most humid months in Roan Mountain, Tennessee.Rainfall
In December, the rain falls for 10.9 days. Throughout December, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 178 rainfall days, and 24.96" (634mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 8.5 days and accumulates 4.65" (118mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:21 am and sunset at 5:13 pm. On the last day of December, sunrise is at 7:39 am and sunset at 5:23 pm EST.
Sunshine
In Roan Mountain, the average sunshine in December is 5.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month in Roan Mountain?
How many days does it snow in December?
What is the month with the shortest days in Roan Mountain?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Roan Mountain have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Roan Mountain, TN
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 30.6°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Roan Mountain, 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
Roan Mountain, TN
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in December
Roan Mountain, TN
- Average humidity in December: 80%
The months with the highest relative humidity are February, March, May and December (80%).
The months with the lowest relative humidity are June and November (77%).
Average rainfall in December
Roan Mountain, TN
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in December
Roan Mountain, TN
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in December
Roan Mountain, TN
- Average snowfall in December: 4.65"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Roan Mountain, TN
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roan Mountain, 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 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Roan Mountain, TN
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (9 days).
Average UV index in December
Roan Mountain, TN
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Roan Mountain, TN
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 35).
Average visibility in December
Roan Mountain, TN
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Roan Mountain, Tennessee, USA
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