December weather forecastMonticello, GA

December

Weather in December

The first month of the winter, December, is still a refreshing month in Monticello, Georgia, with an average temperature fluctuating between 55.8°F (13.2°C) and 41°F (5°C).

Temperature

With the arrival of December, Monticello experiences a modest decline in average high-temperatures, transitioning from a refreshing 62.4°F (16.9°C) in November to a moderate 55.8°F (13.2°C). December nights in Monticello are marked by an average low-temperature of 41°F (5°C).

Humidity

December is the most humid month, with an average relative humidity of 77%.

Rainfall

In December, the rain falls for 8.9 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. Throughout the year, there are 120.7 rainfall days, and 12.76" (324mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. The months with the most snowfall are January through March and December, with an average 0.04" (1mm) of accumulated snow.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:20 am and sunset at 5:27 pm. On the last day of December, in Monticello, sunrise is at 7:38 am and sunset at 5:37 pm EST.

Sunshine

With an average of 5.3h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 3 during December translates into these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Monticello in December has an average high-temperature of 55.8°F (13.2°C) and an average low-temperature of 41°F (5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in September is appraised at 93.2°F (34°C).

With an average relative humidity of 77%, December is the most humid month.

The average relative humidity in December is 77%.

In Monticello, in December, during 8.9 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

The months with the most snowfall are January through March and December, with an average 0.04" (1mm) of accumulated snow.

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

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

In December, the average day length in Monticello is 9h and 59min.

In December, on the first day of the month, sunrise is at 7:20 am and sunset at 5:27 pm. On the last day of the month, in Monticello, sunrise is at 7:38 am and sunset at 5:37 pm EST.

December has the least sunshine of the year in Monticello, with an average of 5.3h of sunshine.

The average sunshine duration in December is 5.3h.

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

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate 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

62.4°F

55.8°F

52.5°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.8mph

7.5mph

8mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

22.8

20.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Monticello, GA

Average high temperature in December: 55.8°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.5°F).

Average low temperature in December: 41°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).

Average pressure in December
Monticello, GA

Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Monticello, GA

Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Monticello, GA

Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are October and November (72%).

Average rainfall in December
Monticello, GA

Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is August (1.61").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days in December
Monticello, GA

Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is November (5.7 days).

Average snowfall in December
Monticello, GA

Average snowfall in December: 0.04"

The months with the highest snowfall are January, February, March and December (0.04").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Monticello, GA

Average snowfall days in December: 0.4 days

The months with the highest number of snowfall days are February and December (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Monticello, 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 18min

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 18min).

Average sunshine days in December
Monticello, GA

Average sunshine days in December: 20.5 days

The month with the most sunshine days is October (23.1 days).
The month with the least sunshine days is July (12.7 days).

Average UV index in December
Monticello, GA

Average UV index in December: 3

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in December
Monticello, GA

Average cloud cover in December: 43

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in December
Monticello, 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).