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
A modest decline in the average high-temperature is seen during December, decreasing from a refreshing 56.3°F (13.5°C) in November to a frosty 48.4°F (9.1°C). In the month of December, an average of 34.7°F (1.5°C) marks the low-temperature.Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
In Blair, in December, during 13.6 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Blair, Tennessee, during the entire year, the rain falls for 171.2 days and collects up to 32.4" (823mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Blair, during December, snow falls for 3.5 days and regularly aggregates up to 0.59" (15mm) of snow. In Blair, during the entire year, snow falls for 17.2 days and aggregates up to 3.31" (84mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:30 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 5:33 pm EST.
Sunshine
In December, the average sunshine is 5h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Blair in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Blair have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Blair, TN
- Average high temperature in December: 48.4°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in December
Blair, 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
Blair, TN
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Blair, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, July and August (75%).
Average rainfall in December
Blair, TN
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is February (3.9").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Blair, TN
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in December
Blair, TN
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Blair, TN
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (5.3 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
Blair, 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 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Blair, TN
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in December
Blair, 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
Blair, TN
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are June and August (Cloud cover 30).
Average visibility in December
Blair, TN
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
Blair, Tennessee, USA
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