December weather forecast
Glen Mary, AL

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Weather in December

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

Temperature

Glen Mary's transition into December involves a gentle shift in temperature, receding from a mild 60.1°F (15.6°C) in November to a cool 52.3°F (11.3°C). Glen Mary experiences an average temperature drop to a cold 38.3°F (3.5°C) during December nights.

Humidity

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

Rainfall

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

Snowfall

Months with snowfall are January through March, November and December. In Glen Mary, in December, during 1.2 snowfall days, 0.28" (7mm) of snow is typically accumulated. Throughout the year, there are 6.6 snowfall days, and 2.05" (52mm) of snow is accumulated.

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 6:38 am and sunset at 4:41 pm. On the last day of December, sunrise is at 6:56 am and sunset at 4:51 pm CST.

Sunshine

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

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

An average high-temperature, in December, in Glen Mary, is 52.3°F (11.3°C) and the average low-temperature is 38.3°F (3.5°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is computed to be 91.4°F (33°C).

What is the most humid month?

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

What is the average humidity in December?

In December, the average relative humidity is 80%.

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 13.3 days and typically aggregates up to 4.45" (113mm) of precipitation.

How much does it rain in December?

In Glen Mary, in December, during 13.3 rainfall days, 4.45" (113mm) of precipitation is typically accumulated.

How much does it snow in December?

In Glen Mary, during December, snow falls for 1.2 days and regularly aggregates up to 0.28" (7mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

What is the average length of the day in December?

In Glen Mary, the average day length in December is 9h and 55min.

When are sunrise and sunset in December in Glen Mary?

In December, on the first day of the month, sunrise is at 6:38 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:51 pm CST.

What are the months with the least sunshine?

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

How long on average sun shines in December?

In December, the average sunshine duration is 4.7h.

When is the lowest UV index?

With an average maximum UV index of 2, December is the month with the lowest UV index.

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).

Average pressure in December
Glen Mary, AL

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

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

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).

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%).

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").

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).

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").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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).
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
Glen Mary, AL

Average daylight in December / Average sunshine in December - Glen Mary, 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 month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

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).

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).

Average cloud cover in December
Glen Mary, AL

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

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

Average visibility in December
Glen Mary, AL

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

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

Glen Mary, Alabama, USA

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