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
Shannon in December undergoes a slight reduction in the average high-temperature, shifting from November's enjoyable 62.4°F (16.9°C) to a cool 54.9°F (12.7°C). An average nighttime temperature of 40.5°F (4.7°C) is noted during the month of December.Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
In Shannon, in December, during 10.5 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. Throughout the year, there are 146.7 rainfall days, and 18.94" (481mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.12" (3mm) of snow. In Shannon, during the entire year, snow falls for 2.7 days and aggregates up to 0.47" (12mm) of snow.Daylight
The month with the shortest days in Shannon is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 6:33 am and sunset at 4:39 pm. On the last day of December, sunrise is at 6:51 am and sunset at 4:50 pm CST.
Sunshine
In Shannon, the average sunshine in December is 4.9h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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 Shannon in December?
When does it start to snow?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Shannon, AL
- Average high temperature in December: 54.9°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (51.3°F).
- Average low temperature in December: 40.5°F
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in December
Shannon, AL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in December
Shannon, AL
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Shannon, AL
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Shannon, AL
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is August (2.24").
The driest month (with the least rainfall) is October (1.02").
Average rainfall days in December
Shannon, AL
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in December
Shannon, AL
- Average snowfall in December: 0.12"
The month with the highest snowfall is January (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Shannon, AL
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1 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
Shannon, AL
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Shannon, AL
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in December
Shannon, AL
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Shannon, AL
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, September and October (Cloud cover 30).
Average visibility in December
Shannon, AL
- 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).
Shannon, Alabama, USA
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