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 onset of December brings a small shift in high-temperatures, falling from a cool 54.7°F (12.6°C) in November to a frosty 46.9°F (8.3°C). December in Dean is noted for a mean low-temperature of 33.4°F (0.8°C).Humidity
February and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In December, in Dean, the rain falls for 12.6 days. Throughout December, 2.83" (72mm) of precipitation is accumulated. In Dean, Tennessee, during the entire year, the rain falls for 167 days and collects up to 33.62" (854mm) of precipitation.Snowfall
Months with snowfall in Dean are January through April, November and December. In December, it is snowing for 3.1 days. Throughout December, 0.91" (23mm) of snow is accumulated. In Dean, during the entire year, snow falls for 17.6 days and aggregates up to 6.02" (153mm) of snow.Daylight
December has the shortest days of the year in Dean, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 5:22 pm. On the last day of December, in Dean, sunrise is at 7:48 am and sunset at 5:32 pm EST.
Sunshine
The average sunshine in December is 4.8h.UV index
The months with the lowest UV index in Dean are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the usual temperature for Dean in December?
What is the most humid month in Dean?
What is the average humidity in December in Dean?
How much does it rain in Dean in December?
How much does it snow in Dean in December?
What is the month with the shortest days in Dean?
What is the average length of the day in December in Dean?
When are sunrise and sunset in December in Dean?
How many hours of sunshine does Dean have in December?
What is the month with the lowest UV index in Dean?
How high is the UV index in December in Dean?
Average temperature in December
Dean, TN
- Average high temperature in December: 46.9°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in December
Dean, 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
Dean, TN
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in December
Dean, TN
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (76%).
Average rainfall in December
Dean, TN
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Dean, TN
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Dean, TN
- Average snowfall in December: 0.91"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Dean, TN
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is January (5.5 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
Dean, 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: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Dean, TN
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in December
Dean, 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
Dean, TN
- Average cloud cover in December: 53
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June and August (Cloud cover 32).
Average visibility in December
Dean, TN
- Average visibility in December: 5mi
The month with the highest visibility is November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (5mi).
Dean, Tennessee, USA
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