December weather forecastMcCollum, GA

December

Weather in December

The first month of the winter, December, is still a refreshing month in McCollum, Georgia, with an average temperature ranging between max 55.4°F (13°C) and min 40.3°F (4.6°C).

Temperature

Transitioning from November to December involves a subtle drop in average high-temperatures, descending from a refreshing 61.9°F (16.6°C) to a moderate 55.4°F (13°C). December brings with it a nighttime average temperature of 40.3°F (4.6°C).

Humidity

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

Rainfall

In McCollum, in December, during 12.8 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. Throughout the year, in McCollum, Georgia, there are 179.7 rainfall days, and 39.76" (1010mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In McCollum, during December, snow falls for 0.3 days and regularly aggregates up to 0.2" (5mm) of snow. Throughout the year, there are 2.7 snowfall days, and 1.14" (29mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 7:25 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:41 pm EST.

Sunshine

With an average of 5h of sunshine, December has the least sunshine of the year in McCollum.

UV index

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in McCollum. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 3 in December translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek 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. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.

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

Frequently asked questions

An average high-temperature, in December, in McCollum, is 55.4°F (13°C) and the average low-temperature is 40.3°F (4.6°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 91.4°F (33°C).

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

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

In December, in McCollum, Georgia, the rain falls for 12.8 days. Throughout December, 3.7" (94mm) of precipitation is accumulated.

In December, in McCollum, Georgia, it is snowing for 0.3 days. Throughout December, 0.2" (5mm) of snow is accumulated.

With an average of 10h and 0min of daylight, December has the shortest days of the year.

The average day length in December is 9h and 59min.

In December, on the first day of the month, sunrise is at 7:25 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:41 pm EST.

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

In December, the average sunshine duration is 5h.

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

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health risk from 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

61.9°F

55.4°F

51.6°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.1mph

7.9mph

8.4mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

18.7

16.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
McCollum, GA

Average high temperature in December: 55.4°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (51.6°F).

Average low temperature in December: 40.3°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).

Average pressure in December
McCollum, GA

Average pressure in December: 30.15"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in December
McCollum, GA

Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in December
McCollum, GA

Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are October and November (72%).

Average rainfall in December
McCollum, GA

Average rainfall in December: 3.7"

The wettest month (with the highest rainfall) is August (5.04").
The driest month (with the least rainfall) is October (2.13").

Average rainfall days in December
McCollum, GA

Average rainfall days in December: 12.8 days

The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is October (9.5 days).

Average snowfall in December
McCollum, GA

Average snowfall in December: 0.2"

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

Average snowfall days in December
McCollum, GA

Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is January (0.9 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
McCollum, GA

Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in December
McCollum, GA

Average sunshine days in December: 16.8 days

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (7 days).

Average UV index in December
McCollum, GA

Average UV index in December: 3

The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in December
McCollum, GA

Average cloud cover in December: 46

The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are June and October (Cloud cover 31).

Average visibility in December
McCollum, GA

Average visibility in December: 6mi

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