December weather forecast and climate
Glen Mary, AL

Weather in December

The first month of the winter, December, is still a cool month in Glen Mary, Alabama, with temperature in the range of an average high of 52.3°F (11.3°C) and an average low of 38.3°F (3.5°C).

Temperature

In December, the average high-temperature slightly decreases, from a moderate 60.1°F (15.6°C) in November, to a cool 52.3°F (11.3°C). In December, the average low-temperature is 38.3°F (3.5°C).

Humidity

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

Rainfall

December is the month with the most rainfall. Rain falls for 13.3 days and accumulates 4.45" (113mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Glen Mary, during December, snow falls for 1.2 days and regularly aggregates up to 0.28" (7mm) of snow. Throughout the year, there are 6.6 snowfall days, and 2.05" (52mm) of snow is accumulated.

Daylight

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

Sunshine

Months with the least sunshine are February and December, with an average of 4.7h of sunshine.

UV index

The month with the lowest UV index in Glen Mary is December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Glen Mary?

In Glen Mary, Alabama, in December, the average high-temperature is 52.3°F (11.3°C), and the average low-temperature is 38.3°F (3.5°C).

What is the most humid month in Glen Mary?

The most humid month in Glen Mary, Alabama, is December, with an average relative humidity of 80%.

What is the average humidity in December in Glen Mary?

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

How much does it rain in Glen Mary in December?

In December, in Glen Mary, the rain falls for 13.3 days. Throughout December, 4.45" (113mm) of precipitation is accumulated.

What is the wettest month in Glen Mary?

December is the month with the most rainfall in Glen Mary. Rain falls for 13.3 days and accumulates 4.45" (113mm) of precipitation.

How many days does it snow in December in Glen Mary?

In December, in Glen Mary, it is snowing for 1.2 days. Throughout December, 0.28" (7mm) of snow is accumulated.

What is the month with the shortest days in Glen Mary?

The month with the shortest days in Glen Mary is December, with an average of 9.9h of daylight.

What is the average length of the day in December in Glen Mary?

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

What is the month with the least sunshine in Glen Mary?

Months with the least sunshine in Glen Mary are February and December, with an average of 4.7h of sunshine.

How many hours of sunshine does Glen Mary have in December?

The average sunshine in December in Glen Mary, Alabama, is 4.7h.

What is the month with the lowest UV index in Glen Mary?

The month with the lowest UV index in Glen Mary is December, with an average maximum UV index of 2.

How high is the UV index in December in Glen Mary?

The average daily maximum UV index in December in Glen Mary is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.

Average temperature in December
Glen Mary, AL

Average temperature in December - Glen Mary, AL
  • Average high temperature in December: 52.3°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (34°F).

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Average pressure in December
Glen Mary, AL

Average pressure in December - Glen Mary, AL
  • Average pressure in December: 30.14"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.97").

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Average wind speed in December
Glen Mary, AL

Average wind speed in December - Glen Mary, AL
  • Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in December
Glen Mary, AL

Average humidity in December - Glen Mary, 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 (72%).

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Average rainfall in December
Glen Mary, AL

Average rainfall in December - Glen Mary, AL
  • Average rainfall in December: 4.45"

The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is November (2.4").

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Average rainfall days in December
Glen Mary, AL

Average rainfall days in December - Glen Mary, AL
  • Average rainfall days in December: 13.3 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (10.3 days).

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Average snowfall in December
Glen Mary, AL

Average snowfall in December - Glen Mary, AL
  • Average snowfall in December: 0.28"

The month with the highest snowfall is February (0.75").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Glen Mary, AL

Average snowfall days in December - Glen Mary, AL
  • Average snowfall days in December: 1.2 days

The month with the highest number of snowfall days is February (2.1 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
Glen Mary, AL

Average daylight in December / Average sunshine in December - Glen Mary, 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: 4.7h

The month with the most sunshine is June (Average sunshine: 10.5h).
Months with the least sunshine are February and December (Average sunshine: 4.7).

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Average sunshine days in December
Glen Mary, AL

Average sunshine days in December - Glen Mary, AL
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is August (9.3 days).

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Average UV index in December
Glen Mary, AL

Average UV index in December - Glen Mary, AL
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in December
Glen Mary, AL

Average cloud cover in December - Glen Mary, AL
  • Average cloud cover in December: 49

Months with the most cloud cover are February and December (Cloud cover 49).
Months with the least cloud cover are June and September (Cloud cover 30).

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Average visibility in December
Glen Mary, AL

Average visibility in December - Glen Mary, AL
  • Average visibility in December: 6mi

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

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