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 average high-temperature slightly decreases in December, shifting from a moderate 56.3°F (13.5°C) in November to a frosty 48.6°F (9.2°C). An average nighttime temperature of 34.7°F (1.5°C) is observed during December.Humidity
The most humid month in Mount Sulphur is December, with an average relative humidity of 80%.Rainfall
In Mount Sulphur, in December, during 13 rainfall days, 3.98" (101mm) of precipitation is typically accumulated. In Mount Sulphur, during the entire year, the rain falls for 176 days and collects up to 40.51" (1029mm) of precipitation.Snowfall
Months with snowfall in Mount Sulphur are January through April, November and December. In Mount Sulphur, in December, snow falls for 2 days, with typically accumulated 0.79" (20mm) of snow. In Mount Sulphur, Tennessee, during the entire year, snow falls for 11.6 days and aggregates up to 2.91" (74mm) of snow.Daylight
The month with the shortest days in Mount Sulphur is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 5:25 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:36 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 4.9h of sunshine.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 exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Boost your sun resistance with garments that are densely woven yet spacious. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in Mount Sulphur in December?
How many days does it snow in December in Mount Sulphur?
What is the month with the shortest days in Mount Sulphur?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine in Mount Sulphur?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Mount Sulphur, TN
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in December
Mount Sulphur, TN
- Average pressure in December: 30.15"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
Mount Sulphur, TN
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).
Average humidity in December
Mount Sulphur, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in December
Mount Sulphur, TN
- Average rainfall in December: 3.98"
The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.52").
Average rainfall days in December
Mount Sulphur, TN
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
Mount Sulphur, TN
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Mount Sulphur, TN
- Average snowfall days in December: 2 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
Mount Sulphur, 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: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Mount Sulphur, TN
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Mount Sulphur, 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
Mount Sulphur, TN
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Mount Sulphur, TN
- Average visibility in December: 5mi
The months with the highest visibility are February, April, June, October and November (6mi).
The months with the lowest visibility are January, March, May, July, August, September and December (5mi).
Mount Sulphur, Tennessee, USA
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