December weather forecast and climate
Castleberry, AL

The first month of the winter, December, is still a mild month in Castleberry, Alabama, with average temperature varying between 60.6°F (15.9°C) and 43.7°F (6.5°C).

Temperature

In December, the average high-temperature slightly decreases, from an enjoyable 66.9°F (19.4°C) in November, to a mild 60.6°F (15.9°C). In December, in Castleberry, Alabama, the average low-temperature is 43.7°F (6.5°C).

Humidity

February and December, with an average relative humidity of 80%, are most humid months in Castleberry.

Rainfall

In Castleberry, during December, the rain falls for 12.9 days and regularly aggregates up to 4.06" (103mm) of precipitation. In Castleberry, during the entire year, the rain falls for 176.5 days and collects up to 37.72" (958mm) of precipitation.

Snowfall

Months with snowfall in Castleberry, Alabama, are January through March and December. December is the first month it typically snows in Castleberry, Alabama. Throughout December, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 1.4 snowfall days, and 0.43" (11mm) of snow is accumulated.

Daylight

With an average of 10.1h of daylight, December has the shortest days of the year.

Sunshine

December has the least sunshine of the year in Castleberry, with an average of 5h of sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions - Protection against sun damage is advised. 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.

What is the temperature in December in Castleberry?

In December, in Castleberry, the average high-temperature is 60.6°F (15.9°C), and the average low-temperature is 43.7°F (6.5°C).

What are the most humid months in Castleberry?

February and December, with an average relative humidity of 80%, are most humid months in Castleberry.

What is the average humidity in December in Castleberry?

In December, the average relative humidity is 80%.

How much does it rain in Castleberry in December?

In Castleberry, Alabama, in December, during 12.9 rainfall days, 4.06" (103mm) of precipitation is typically accumulated.

When does it start snowing in Castleberry?

December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days in Castleberry?

With an average of 10.1h of daylight, December has the shortest days of the year in Castleberry, Alabama.

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

In Castleberry, the average length of the day in December is 10.1h.

What is the month with the least sunshine in Castleberry?

December has the least sunshine of the year in Castleberry, Alabama, with an average of 5h of sunshine.

How long on average sun shines in December in Castleberry?

In Castleberry, Alabama, the average sunshine in December is 5h.

What are the months with the lowest UV index in Castleberry?

Months with the lowest UV index in Castleberry, Alabama, are January and December, with an average maximum UV index of 3.

What is the UV index intensity in December in Castleberry?

In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in December - Castleberry, AL
  • Average high temperature in December: 60.6°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (57.6°F).

  • Average low temperature in December: 43.7°F

Months with the highest average low temperature are July and August (72.3°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

Average pressure in December - Castleberry, AL
  • Average pressure in December: 30.13"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.97").

Average wind speed in December - Castleberry, AL
  • Average wind speed in December: 6.2mph

The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

Average humidity in December - Castleberry, AL
  • Average humidity in December: 80%

Months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December - Castleberry, AL
  • Average rainfall in December: 4.06"

The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days in December - Castleberry, AL
  • Average rainfall days in December: 12.9 days

The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (7.6 days).

Average snowfall in December - Castleberry, AL
  • Average snowfall in December: 0.04"

The month with the highest snowfall is January (0.28").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December - Castleberry, AL
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (0.5 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 - Castleberry, AL
  • Average daylight in December: 10.1h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in December: 5h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 5h).

Average sunshine days in December - Castleberry, AL
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (5.1 days).

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

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January and December (UV index 3).

Average cloud cover in December - Castleberry, AL
  • Average cloud cover in December: 50

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).

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

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