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
The arrival of December suggests a slight decrease in the average high-temperature, moving from a comfortable 61.2°F (16.2°C) in November to a fresh 54°F (12.2°C). Throughout December nights, Bonny Brook registers an average low-temperature of 39°F (3.9°C).Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
The month with the most rainfall is December, when the rain falls for 14 days and typically aggregates up to 3.78" (96mm) of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.7 snowfall days, it receives 0.47" (12mm) of snow. Throughout the year, there are 4 snowfall days, and 1.57" (40mm) of snow is accumulated.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of December in Bonny Brook, Alabama, sunrise is at 6:30 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 4:44 pm CST.
Sunshine
In December, the average sunshine is 5h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. 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 is the average December temperature?
What is the most humid month in Bonny Brook?
What is the average humidity in December?
What is the rainiest month?
How much does it rain in December?
When does it start to snow in Bonny Brook?
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 long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December in Bonny Brook?
Average temperature in December
Bonny Brook, AL
- Average high temperature in December: 54°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (50°F).
- Average low temperature in December: 39°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in December
Bonny Brook, 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
Bonny Brook, AL
- Average wind speed in December: 6.7mph
The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Bonny Brook, 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
Bonny Brook, AL
- Average rainfall in December: 3.78"
The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is October (2.24").
Average rainfall days in December
Bonny Brook, AL
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Bonny Brook, AL
- Average snowfall in December: 0.47"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Bonny Brook, AL
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is January (1.4 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
Bonny Brook, AL
- 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: 5h and 0min
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 54min).
Average sunshine days in December
Bonny Brook, AL
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in December
Bonny Brook, AL
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Bonny Brook, AL
- Average cloud cover in December: 47
The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in December
Bonny Brook, 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).
Bonny Brook, Alabama, USA
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