December weather forecast and climate
Key, AL

Weather in December

The first month of the winter, December, is also a fresh month in Key, Alabama, with average temperature ranging between min 38.3°F (3.5°C) and max 52.5°F (11.4°C).

Temperature

In Key, Alabama, the average high-temperature in December slightly decreases, from a mild 60.3°F (15.7°C) in November, to a fresh 52.5°F (11.4°C). In December, in Key, the average low-temperature is 38.3°F (3.5°C).

Humidity

December is the most humid month, with an average relative humidity of 80%.

Rainfall

The wettest months are February and December, with an average 4.06" (103mm) of rainfall.

Snowfall

January through March, November and December are months with snowfall in Key. In December, it is snowing for 0.7 days. Throughout December, 0.47" (12mm) of snow is accumulated. In Key, during the entire year, snow falls for 4.5 days, and aggregates up to 2.05" (52mm) of snow.

Daylight

With an average of 9.9h of daylight, December has the shortest days of the year in Key.

Sunshine

In Key, Alabama, the average sunshine is 4.9h.

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to the UV radiation for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Key?

In Key, Alabama, in December, the average high-temperature is 52.5°F (11.4°C), and the average low-temperature is 38.3°F (3.5°C).

What is the most humid month in Key?

December is the most humid month in Key, with an average relative humidity of 80%.

What is the average humidity in December in Key?

In Key, the average relative humidity in December is 80%.

How many days does it rain in December in Key?

In Key, Alabama, in December, during 13.9 rainfall days, 4.06" (103mm) of precipitation is typically accumulated.

What is the wettest month in Key?

The wettest months in Key, Alabama, are February and December, with an average 4.06" (103mm) of rainfall.

How many days does it snow in December in Key?

In Key, Alabama, in December, snow falls for 0.7 days, with typically accumulated 0.47" (12mm) of snow.

What is the month with the shortest days in Key?

December has the shortest days of the year in Key, with an average of 9.9h of daylight.

How many hours of daylight does Key have in December?

The average length of the day in December in Key, Alabama, is 9.9h.

How many hours of sunshine does Key have in December?

In December, the average sunshine is 4.9h.

When is the lowest UV index in Key?

Months with the lowest UV index in Key, Alabama, are January and December, with an average maximum UV index of 2.

How high is the UV index in December in Key?

In Key, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV rays.

Average temperature in December
Key, AL

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).

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Average pressure in December
Key, AL

Average pressure in December - Key, AL
  • Average pressure in December: 30.15"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.98").

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Average wind speed in December
Key, AL

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).

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Average humidity in December
Key, AL

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%).

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Average rainfall in December
Key, AL

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").

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Average rainfall days in December
Key, AL

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).

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Average snowfall in December
Key, AL

Average snowfall in December - Key, AL
  • Average snowfall in December: 0.47"

The month with the highest snowfall is January (0.79").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Key, AL

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).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Key, AL

Average daylight in December / Average sunshine in December - Key, AL
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 4.9h

Months with the most sunshine are June and July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in December
Key, AL

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).

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Average UV index in December
Key, AL

Average UV index in December - Key, AL
  • Average UV index in December: 2

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in December
Key, AL

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).

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Average visibility in December
Key, AL

Average visibility in December - Key, AL
  • Average visibility in December: 5mi

Months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
Months with the lowest visibility are January and December (5mi).

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