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's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's refreshing 59.5°F (15.3°C) to a fresh 52°F (11.1°C). Union Grove's nights in December experience an average temperature drop to a cold 38.3°F (3.5°C).Humidity
With an average relative humidity of 80%, December is the most humid month.Rainfall
In Union Grove, in December, during 12.7 rainfall days, 4.21" (107mm) of precipitation is typically accumulated. Throughout the year, in Union Grove, Alabama, there are 172.8 rainfall days, and 41.26" (1048mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Union Grove. In Union Grove, in December, snow falls for 1.1 days, with typically accumulated 0.28" (7mm) of snow. In Union Grove, during the entire year, snow falls for 6.1 days and aggregates up to 1.93" (49mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:34 am and sunset at 4:35 pm. On the last day of December, sunrise is at 6:52 am and sunset at 4:46 pm CST.
Sunshine
In Union Grove, the average sunshine in December is 4.7h.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 average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. 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 temperature in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Union Grove?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Union Grove have in December?
What are the months with the lowest UV index in Union Grove?
What is the UV index reading in December?
Average temperature in December
Union Grove, AL
- Average high temperature in December: 52°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (48.4°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in December
Union Grove, 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
Union Grove, AL
- Average wind speed in December: 7.4mph
The windiest months (with the highest average wind speed) are January, February and March (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Union Grove, 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 (73%).
Average rainfall in December
Union Grove, AL
- Average rainfall in December: 4.21"
The wettest month (with the highest rainfall) is April (4.25").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in December
Union Grove, AL
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
Union Grove, AL
- Average snowfall in December: 0.28"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Union Grove, AL
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is January (1.8 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
Union Grove, AL
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Union Grove, AL
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in December
Union Grove, 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
Union Grove, AL
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 31).
Average visibility in December
Union Grove, AL
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Union Grove, Alabama, USA
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