December weather forecastCastleberry, AL
December
Weather in December
December, the first month of the winter in Castleberry, is still a refreshing month, with an average temperature fluctuating between 43.7°F (6.5°C) and 60.6°F (15.9°C).Temperature
Castleberry's progression into December involves a gentle drop in the average high-temperature, from a refreshing 66.9°F (19.4°C) in November to a moderate 60.6°F (15.9°C). In Castleberry, in December, the average low-temperature is a chilly 43.7°F (6.5°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 80%.Rainfall
In Castleberry, during December, the rain falls for 12.9 days and regularly aggregates up to 4.06" (103mm) of precipitation. Throughout the year, there are 176.5 rainfall days, and 37.72" (958mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 1.4 snowfall days, and 0.43" (11mm) of snow is accumulated.Daylight
The month with the shortest days in Castleberry is December, with an average of 10h and 12min of daylight.On the first day of the month, sunrise is at 6:29 am and sunset at 4:45 pm. On the last day of December, sunrise is at 6:46 am and sunset at 4:56 pm CST.
Sunshine
December has the least sunshine of the year in Castleberry, with an average of 5h of sunshine.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 3 suggests this advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. 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
Average temperature in December
Castleberry, AL
- Average high temperature in December: 60.6°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (57.6°F).
- Average low temperature in December: 43.7°F
The months with the highest average low temperature are July and August (72.3°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in December
Castleberry, AL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
Castleberry, AL
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in December
Castleberry, AL
- Average humidity in December: 80%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Castleberry, AL
- Average rainfall in December: 4.06"
The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in December
Castleberry, AL
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (7.6 days).
Average snowfall in December
Castleberry, AL
- Average snowfall in December: 0.04"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Castleberry, AL
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is January (0.5 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
Castleberry, AL
- Average daylight in December: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Castleberry, AL
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (5.1 days).
Average UV index in December
Castleberry, AL
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Castleberry, AL
- Average cloud cover in December: 50
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in December
Castleberry, AL
- Average visibility in December: 5mi
The months with the highest visibility are June and October (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, November and December (5mi).
