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
Somerville in December undergoes a slight reduction in the average high-temperature, shifting from November's enjoyable 61.7°F (16.5°C) to a fresh 53.4°F (11.9°C). Nighttime temperatures hover around an average low of 41°F (5°C) in December.Humidity
February, March and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In December, the rain falls for 12.3 days. Throughout December, 4.25" (108mm) of precipitation is accumulated. In Somerville, during the entire year, the rain falls for 161.1 days and collects up to 42.24" (1073mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Somerville, during December, snow falls for 0.3 days and regularly aggregates up to 0.04" (1mm) of snow. In Somerville, during the entire year, snow falls for 3.3 days and aggregates up to 1.38" (35mm) of snow.Daylight
December has the shortest days of the year in Somerville, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 6:48 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:02 pm CST.
Sunshine
In December, the average sunshine is 4.9h.UV index
The months with the lowest UV index in Somerville are January, February and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Around midday, solar radiation is most harmful; hence, exposure should be limited. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. 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 are December temperatures?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
How many days 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 Somerville have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Somerville, MS
- Average high temperature in December: 53.4°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (50.2°F).
- Average low temperature in December: 41°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).
Average pressure in December
Somerville, MS
- 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, MS
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Somerville, MS
- Average humidity in December: 78%
The months with the highest relative humidity are February, March and December (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Somerville, MS
- Average rainfall in December: 4.25"
The wettest month (with the highest rainfall) is April (4.72").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Somerville, MS
- Average rainfall days in December: 12.3 days
The months with the highest number of rainy days are July and August (17.6 days).
The month with the least rainy days is October (9.3 days).
Average snowfall in December
Somerville, MS
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Somerville, MS
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Somerville, MS
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- 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, MS
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is August (11.1 days).
Average UV index in December
Somerville, MS
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Somerville, MS
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in December
Somerville, MS
- 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, Mississippi, USA
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