December weather forecast and climate
Alabaster, AL

The first month of the winter, December, is still a cool month in Alabaster, Alabama, with temperature in the range of an average low of 40.5°F (4.7°C) and an average high of 55.2°F (12.9°C).

Temperature

In Alabaster, the average high-temperature in December slightly decreases, from a comfortable 62.8°F (17.1°C) in November, to a cool 55.2°F (12.9°C). In Alabaster, the average low-temperature is 40.5°F (4.7°C).

Humidity

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

Rainfall

In Alabaster, during December, the rain falls for 11.2 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Alabaster, during the entire year, the rain falls for 148.8 days and collects up to 23.11" (587mm) of precipitation.

Snowfall

January, February and December are months with snowfall. December is the month with the most snowfall in Alabaster. Snow falls for 0.5 days and accumulates 0.47" (12mm) of snow.

Daylight

With an average of 10h of daylight, December has the shortest days of the year.

Sunshine

Months with the least sunshine in Alabaster are February and December, with an average of 4.9h of sunshine.

UV index

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Alabaster?

The average high-temperature, in December, is 55.2°F (12.9°C), while the average low-temperature is 40.5°F (4.7°C).

What is the most humid month in Alabaster?

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

What is the average humidity in December in Alabaster?

In December, the average relative humidity is 80%.

How many days does it rain in December in Alabaster?

In December, the rain falls for 11.2 days. Throughout December, 2.01" (51mm) of precipitation is accumulated.

When does it start to snow in Alabaster?

December is the first month it typically snows in Alabaster. Throughout December, in the average 0.5 snowfall days, it receives 0.47" (12mm) of snow.

What is the snowiest month in Alabaster?

The month with the most snowfall in Alabaster is December when snow falls for 0.5 days and typically aggregates up to 0.47" (12mm) of snow.

What is the month with the shortest days in Alabaster?

The month with the shortest days in Alabaster is December, with an average of 10h of daylight.

What is the average length of the day in December in Alabaster?

In Alabaster, the average length of the day in December is 10h.

What is the month with the least sunshine in Alabaster?

February and December, with an average of 4.9h of sunshine, are months with the least sunshine in Alabaster, Alabama.

How many hours of sunshine does Alabaster have in December?

In Alabaster, the average sunshine in December is 4.9h.

What is the month with the lowest UV index in Alabaster?

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Alabaster.

What is the UV index intensity in December in Alabaster?

In Alabaster, Alabama, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.
Average temperature in December - Alabaster, AL
  • Average high temperature in December: 55.2°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in December: 40.5°F

The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).

Average pressure in December - Alabaster, AL
  • Average pressure in December: 30.14"

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

Average wind speed in December - Alabaster, AL
  • Average wind speed in December: 7.1mph

The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

Average humidity in December - Alabaster, 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 (71%).

Average rainfall in December - Alabaster, AL
  • Average rainfall in December: 2.01"

The wettest month (with the highest rainfall) is August (2.52").
The driest months (with the least rainfall) are September and October (1.26").

Average rainfall days in December - Alabaster, AL
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (6.7 days).

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

The month with the highest snowfall is December (0.47").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December - Alabaster, AL
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is January (1 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Alabaster, AL
  • Average daylight in December: 10h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in December: 4.9h

Months with the most sunshine are June and July (Average sunshine: 10.6h).
Months with the least sunshine are February and December (Average sunshine: 4.9).

Average sunshine days in December - Alabaster, AL
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is July (9 days).

Average UV index in December - Alabaster, AL
  • Average UV index in December: 3

The month with the highest UV index is June (UV index 7).
Months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in December - Alabaster, AL
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in December - Alabaster, AL
  • Average visibility in December: 6mi

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