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
With the onset of December, Key's climate undergoes a slight change as the average high-temperature moves from a moderate 60.3°F (15.7°C) in November to a cool 52.5°F (11.4°C). Key experiences an average nighttime temperature of 38.3°F (3.5°C) in the month of December.Humidity
The most humid month in Key is December, with an average relative humidity of 80%.Rainfall
The months with the most rainfall in Key are February and December, with an average 4.06" (103mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Key. In Key, during December, snow falls for 0.7 days and regularly aggregates up to 0.47" (12mm) of snow. Throughout the year, there are 4.5 snowfall days, and 2.05" (52mm) 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 6:30 am and sunset at 4:32 pm. On the last day of December, in Key, sunrise is at 6:47 am and sunset at 4:43 pm CST.
Sunshine
The average sunshine in December is 4.9h.UV index
The months with the lowest UV index are January and December, 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 rays for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What are the temperatures in Key in December?
What is the most humid month in Key?
What is the average humidity in December in Key?
What is the rainiest month in Key?
How many days does it rain in December in Key?
How much does it snow in Key in December?
What is the month with the shortest days in Key?
How many hours of daylight does Key have in December?
When is the sunrise / sunset in December in Key?
How many hours of sunshine does Key have in December?
When is the lowest UV index in Key?
What is the UV index intensity in December in Key?
Average temperature in December
Key, AL
- Average high temperature in December: 52.5°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 (48.9°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
Key, 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
Key, AL
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
Key, 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 (74%).
Average rainfall in December
Key, AL
- Average rainfall in December: 4.06"
The wettest months (with the highest rainfall) are February and December (4.06").
The driest month (with the least rainfall) is October (2.56").
Average rainfall days in December
Key, AL
- Average rainfall days in December: 13.9 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in December
Key, AL
- Average snowfall in December: 0.47"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Key, AL
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (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
Key, 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 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
Key, AL
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (8 days).
Average UV index in December
Key, 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
Key, AL
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Key, AL
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Key, Alabama, USA
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