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
As November shifts into December, a minor alteration in temperatures is observed, with average highs reducing from a moderate 58.6°F (14.8°C) to a fresh 50.4°F (10.2°C). Somerville anticipates an average minimum temperature of 37.6°F (3.1°C) in the month of December.Humidity
The average relative humidity in December in Somerville is 79%.Rainfall
In Somerville, in December, during 9.6 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 132.5 rainfall days, and 16.26" (413mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Somerville, in December, during 0.7 snowfall days, 0.04" (1mm) of snow is typically accumulated. Throughout the year, there are 4.9 snowfall days, and 0.87" (22mm) of snow is accumulated.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 6:48 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 4:55 pm CST.
Sunshine
In Somerville, Tennessee, the average sunshine in December is 4.9h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 3 during December leads to these instructions:
Take precautions - Protection against sun damage is advised. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What are the temperatures in Somerville in December?
What is the average humidity in December in Somerville?
How much does it rain in Somerville in December?
How many days does it snow in December in Somerville?
What is the month with the shortest days in Somerville?
How many hours of daylight does Somerville have in December?
When are sunrise and sunset in December in Somerville?
How long on average sun shines in December in Somerville?
What are the months with the lowest UV index in Somerville?
What is the UV index reading in December in Somerville?
Average temperature in December
Somerville, TN
- Average high temperature in December: 50.4°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (46.4°F).
- Average low temperature in December: 37.6°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).
Average pressure in December
Somerville, TN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Somerville, TN
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in December
Somerville, TN
- Average humidity in December: 79%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Somerville, TN
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is July (1.89").
The driest months (with the least rainfall) are September and November (0.75").
Average rainfall days in December
Somerville, TN
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Somerville, TN
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Somerville, TN
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Somerville, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Somerville, TN
- Average sunshine days in December: 20.3 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in December
Somerville, TN
- Average UV index in December: 3
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Somerville, TN
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in December
Somerville, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Somerville, Tennessee, USA
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