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
December brings a slight decrease in temperature, down from a moderate 57.7°F (14.3°C) in November to a frosty 49.8°F (9.9°C). In Summer Bluff, December's nights observe an average temperature dip to a wintry 36.1°F (2.3°C).Humidity
The most humid month is December, with an average relative humidity of 81%.Rainfall
In Summer Bluff, in December, during 13.5 rainfall days, 3.9" (99mm) of precipitation is typically accumulated. Throughout the year, there are 172.1 rainfall days, and 38.62" (981mm) of precipitation is accumulated.Snowfall
Months with snowfall in Summer Bluff are January through April, November and December. In December, in Summer Bluff, it is snowing for 1.2 days. Throughout December, 0.24" (6mm) of snow is accumulated. Throughout the year, there are 7 snowfall days, and 1.65" (42mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:33 am and sunset at 4:31 pm. On the last day of December, sunrise is at 6:50 am and sunset at 4:42 pm CST.
Sunshine
The average sunshine in December is 4.8h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Summer Bluff in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Summer Bluff have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Summer Bluff have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Summer Bluff, AL
- Average high temperature in December: 49.8°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 (45.7°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in December
Summer Bluff, AL
- 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
Summer Bluff, AL
- Average wind speed in December: 5.8mph
The windiest months (with the highest average wind speed) are February, March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).
Average humidity in December
Summer Bluff, AL
- 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
Summer Bluff, AL
- Average rainfall in December: 3.9"
The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is September (2.36").
Average rainfall days in December
Summer Bluff, AL
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in December
Summer Bluff, AL
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Summer Bluff, AL
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is February (2.2 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
Summer Bluff, AL
- 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 54min).
- 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 February (Average sunshine: 4h and 30min).
Average sunshine days in December
Summer Bluff, AL
- Average sunshine days in December: 16 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Summer Bluff, AL
- 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
Summer Bluff, AL
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 33).
Average visibility in December
Summer Bluff, AL
- 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).
Summer Bluff, Alabama, USA
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