Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
A mild shift in the average high-temperature occurs in December, reducing from a refreshing 60.1°F (15.6°C) in November to a fresh 53.2°F (11.8°C). Altoona reports an average nighttime low-temperature of 38.5°F (3.6°C) in December.Humidity
December is the most humid month in Altoona, with an average relative humidity of 80%.Rainfall
In Altoona, in December, it is raining for 13.2 days, with typically 4.29" (109mm) of accumulated precipitation. In Altoona, during the entire year, the rain falls for 180.2 days and collects up to 42.24" (1073mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Altoona. In Altoona, Alabama, in December, during 0.8 snowfall days, 0.35" (9mm) of snow is typically accumulated. In Altoona, during the entire year, snow falls for 4.5 days and aggregates up to 1.89" (48mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year in Altoona, Alabama.On the first day of December in Altoona, sunrise is at 6:33 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 4:46 pm CST.
Sunshine
In December, the average sunshine in Altoona is 4.6h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What is the usual temperature for Altoona in December?
What is the most humid month in Altoona?
What is the average humidity in December in Altoona?
How many days does it rain in December in Altoona?
How much does it snow in Altoona in December?
What is the month with the shortest days in Altoona?
How many hours of daylight does Altoona have in December?
When is the sunrise / sunset in December in Altoona?
How long on average sun shines in December in Altoona?
What is the month with the lowest UV index in Altoona?
What is the UV index intensity in December in Altoona?
Average temperature in December
Altoona, AL
- Average high temperature in December: 53.2°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (49.1°F).
- Average low temperature in December: 38.5°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (34°F).
Average pressure in December
Altoona, AL
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Altoona, AL
- Average wind speed in December: 7.5mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Altoona, 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 (73%).
Average rainfall in December
Altoona, AL
- Average rainfall in December: 4.29"
The wettest month (with the highest rainfall) is August (4.41").
The driest month (with the least rainfall) is October (2.4").
Average rainfall days in December
Altoona, AL
- Average rainfall days in December: 13.2 days
The month with the highest number of rainy days is July (22.2 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in December
Altoona, AL
- Average snowfall in December: 0.35"
The month with the highest snowfall is January (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Altoona, AL
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (1.2 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
Altoona, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Altoona, AL
- Average sunshine days in December: 16.1 days
The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in December
Altoona, AL
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Altoona, AL
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 32).
Average visibility in December
Altoona, AL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Altoona, Alabama, USA
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