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 correlates with a minor temperature reduction, down from November's mild 58.1°F (14.5°C) to a fresh 50.7°F (10.4°C). Nightly temperatures drop to an average low of 36.5°F (2.5°C) in December.Humidity
The most humid month is December, with an average relative humidity of 81%.Rainfall
December is the month with the most rainfall. Rain falls for 14 days and accumulates 4.17" (106mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Vulcan, in December, during 0.8 snowfall days, 0.28" (7mm) of snow is typically accumulated. In Vulcan, during the entire year, snow falls for 6.4 days and aggregates up to 2.48" (63mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December in Vulcan, sunrise is at 6:32 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 4:40 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 4.8h of sunshine.UV index
The months with the lowest UV index in Vulcan are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 in December translates into this advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the most humid month?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Vulcan have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
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
Vulcan, TN
- Average high temperature in December: 50.7°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 (46.6°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in December
Vulcan, TN
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Vulcan, TN
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Vulcan, TN
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Vulcan, TN
- Average rainfall in December: 4.17"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is September (2.6").
Average rainfall days in December
Vulcan, TN
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in December
Vulcan, TN
- Average snowfall in December: 0.28"
The months with the highest snowfall are January and February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Vulcan, TN
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is January (2.3 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
Vulcan, 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 months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Vulcan, TN
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in December
Vulcan, 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 and December (UV index 2).
Average cloud cover in December
Vulcan, TN
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in December
Vulcan, TN
- Average visibility in December: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Vulcan, Tennessee, USA
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