December weather forecast and climate
Alton, AL

The first month of the winter, December, is also a fresh month in Alton, Alabama, with average temperature ranging between min 39.4°F (4.1°C) and max 54.1°F (12.3°C).

Temperature

In Alton, the average high-temperature in December marginally drops, from an enjoyable 61.2°F (16.2°C) in November, to a fresh 54.1°F (12.3°C). In Alton, the average low-temperature is 39.4°F (4.1°C).

Humidity

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

Rainfall

In Alton, during 10.9 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Alton, Alabama, during the entire year, the rain falls for 149 days and collects up to 19.88" (505mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Alton, during December, snow falls for 0.6 days and regularly aggregates up to 0.08" (2mm) of snow. Throughout the year, in Alton, there are 3 snowfall days, and 0.43" (11mm) of snow is accumulated.

Daylight

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

Sunshine

February and December, with an average of 4.8h of sunshine, are months with the least sunshine.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index in Alton. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to 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.

What is the temperature in December in Alton?

The average high-temperature, in December, in Alton, Alabama, is 54.1°F (12.3°C), while the average low-temperature is 39.4°F (4.1°C).

What is the most humid month in Alton?

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

What is the average humidity in December in Alton?

The average relative humidity in December is 80%.

How many days does it rain in December in Alton?

In Alton, Alabama, in December, during 10.9 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

How much does it snow in Alton in December?

In Alton, Alabama, during December, snow falls for 0.6 days and regularly aggregates up to 0.08" (2mm) of snow.

What is the month with the shortest days in Alton?

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

How many hours of daylight does Alton have in December?

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

What is the month with the least sunshine in Alton?

February and December, with an average of 4.8h of sunshine, are months with the least sunshine.

How long on average sun shines in December in Alton?

In December, the average sunshine in Alton is 4.8h.

When is the lowest UV index in Alton?

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

What is the UV index intensity in December in Alton?

In Alton, Alabama, 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 unprotected exposure to the UV radiation.
Average temperature in December - Alton, AL
  • Average high temperature in December: 54.1°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.7°F).

  • Average low temperature in December: 39.4°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).

Average pressure in December - Alton, 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").

Average wind speed in December - Alton, AL
  • Average wind speed in December: 7mph

The windiest months (with the highest average wind speed) are January and February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

Average humidity in December - Alton, 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 - Alton, AL
  • Average rainfall in December: 1.85"

The wettest month (with the highest rainfall) is August (2.24").
The driest month (with the least rainfall) is October (1.06").

Average rainfall days in December - Alton, AL
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (7.9 days).

Average snowfall in December - Alton, AL
  • Average snowfall in December: 0.08"

The month with the highest snowfall is January (0.2").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December - Alton, AL
  • Average snowfall days in December: 0.6 days

The month with the highest number of snowfall days is February (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 - Alton, AL
  • Average daylight in December: 10h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in December: 4.8h

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

Average sunshine days in December - Alton, AL
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.6 days).

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

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

Average cloud cover in December - Alton, AL
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
Months with the least cloud cover are June and September (Cloud cover 30).

Average visibility in December - Alton, 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).