December weather forecastAlto, GA

December

Weather in December

The first month of the winter, December, is still a cool month in Alto, Georgia, with an average temperature ranging between min 37.8°F (3.2°C) and max 52.7°F (11.5°C).

Temperature

In December, the meteorological conditions change slightly, with the average high-temperature moving from a refreshing 59.9°F (15.5°C) in November to a fresh 52.7°F (11.5°C). Alto temperatures generally rest at a low of 37.8°F (3.2°C) during the December nights.

Humidity

December is the most humid month in Alto, with an average relative humidity of 78%.

Rainfall

The month with the most rainfall is December, when the rain falls for 12.7 days and typically aggregates up to 4.33" (110mm) of precipitation.

Snowfall

Months with snowfall in Alto are January through March, November and December. December is the month with the most snowfall. Snow falls for 0.9 days and accumulates 3.27" (83mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:23 am and sunset at 5:23 pm. On the last day of December, in Alto, sunrise is at 7:40 am and sunset at 5:34 pm EST.

Sunshine

With an average of 5.1h of sunshine, December has the least sunshine of the year in Alto.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.

Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, the average high-temperature and low-temperature in Alto are 52.7°F (11.5°C) and 37.8°F (3.2°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is evaluated at 89.6°F (32°C).

December is the most humid month, with an average relative humidity of 78%.

In Alto, the average relative humidity in December is 78%.

December is the month with the most rainfall in Alto, Georgia. Rain falls for 12.7 days and accumulates 4.33" (110mm) of precipitation.

In Alto, in December, it is raining for 12.7 days, with typically 4.33" (110mm) of accumulated precipitation.

December is the month with the most snowfall. Snow falls for 0.9 days and accumulates 3.27" (83mm) of snow.

In Alto, during December, snow falls for 0.9 days and regularly aggregates up to 3.27" (83mm) of snow.

With an average of 9h and 54min of daylight, December has the shortest days of the year in Alto.

In Alto, Georgia, the average day length in December is 9h and 54min.

In December, on the first day of the month, sunrise is at 7:23 am and sunset at 5:23 pm. On the last day of the month, in Alto, Georgia, sunrise is at 7:40 am and sunset at 5:34 pm EST.

The month with the least sunshine in Alto, Georgia, is December, with an average of 5.1h of sunshine.

In Alto, Georgia, the average sunshine duration in December is 5.1h.

The months with the lowest UV index in Alto, Georgia, are January and December, with an average maximum UV index of 2.

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

59.9°F

52.7°F

48.7°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.8mph

6.3mph

7mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

19.9

16.9

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Alto, GA

Average high temperature in December: 52.7°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (48.7°F).

Average low temperature in December: 37.8°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).

Average pressure in December
Alto, GA

Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in December
Alto, GA

Average wind speed in December: 5.8mph

The windiest months (with the highest average wind speed) are January and February (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in December
Alto, GA

Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).

Average rainfall in December
Alto, GA

Average rainfall in December: 4.33"

The wettest month (with the highest rainfall) is December (4.33").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in December
Alto, GA

Average rainfall days in December: 12.7 days

The months with the highest number of rainy days are May and July (15.1 days).
The month with the least rainy days is October (8.8 days).

Average snowfall in December
Alto, GA

Average snowfall in December: 3.27"

The month with the highest snowfall is December (3.27").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Alto, GA

Average snowfall days in December: 0.9 days

The month with the highest number of snowfall days is February (1.8 days).
The 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
Alto, GA

Average daylight in December: 9h and 54min

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: 5h and 6min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in December
Alto, GA

Average sunshine days in December: 16.9 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is February (12.7 days).

Average UV index in December
Alto, GA

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
Alto, GA

Average cloud cover in December: 45

The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).

Average visibility in December
Alto, GA

Average visibility in December: 5mi

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