Jefferson
Georgia, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Jefferson, GA

The first month of the winter, December, is still a cool month in Jefferson, Georgia, with average temperature ranging between max 53.4°F (11.9°C) and min 39°F (3.9°C).

Temperature

In Jefferson, the average high-temperature marginally drops, from a comfortable 60.8°F (16°C) in November, to a cool 53.4°F (11.9°C). The average low-temperature, in Jefferson, is 39°F (3.9°C).

Humidity

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

Rainfall

In Jefferson, in December, during 13 rainfall days, 3.94" (100mm) of precipitation is typically accumulated. Throughout the year, there are 176 rainfall days, and 40.12" (1019mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Jefferson, during December, snow falls for 0.5 days and regularly aggregates up to 0.16" (4mm) of snow. Throughout the year, there are 3.3 snowfall days, and 1.69" (43mm) of snow is accumulated.

Daylight

With an average of 9.9h of daylight, December has the shortest days of the year in Jefferson.

Sunshine

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

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Jefferson. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Jefferson?

The average high-temperature, in December, in Jefferson, Georgia, is 53.4°F (11.9°C), while the average low-temperature is 39°F (3.9°C).

What is the most humid month in Jefferson?

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

What is the average humidity in December in Jefferson?

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

How much does it rain in Jefferson in December?

In December, in Jefferson, Georgia, the rain falls for 13 days. Throughout December, 3.94" (100mm) of precipitation is accumulated.

How much does it snow in Jefferson in December?

In Jefferson, Georgia, in December, during 0.5 snowfall days, 0.16" (4mm) of snow is typically accumulated.

What is the month with the shortest days in Jefferson?

With an average of 9.9h of daylight, December has the shortest days of the year in Jefferson.

What is the average length of the day in December in Jefferson?

In Jefferson, the average length of the day in December is 9.9h.

What is the month with the least sunshine in Jefferson?

December has the least sunshine of the year in Jefferson, Georgia, with an average of 5.1h of sunshine.

How many hours of sunshine does Jefferson have in December?

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

When is the lowest UV index in Jefferson?

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

How high is the UV index in December in Jefferson?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays.
Average temperature in December - Jefferson, GA
  • Average high temperature in December: 53.4°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 (49.8°F).

  • Average low temperature in December: 39°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

Average humidity in December - Jefferson, GA
  • Average humidity in December: 78%

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

Average rainfall in December - Jefferson, GA
  • Average rainfall in December: 3.94"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is September (2.28").

Average rainfall days in December - Jefferson, GA
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is October (9.8 days).

Average snowfall in December - Jefferson, GA
  • Average snowfall in December: 0.16"

The month with the highest snowfall is February (0.94").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December - Jefferson, GA
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is February (1.2 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Jefferson, GA
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 5.1h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.1h).

Average UV index in December - Jefferson, GA
  • Average UV index in December: 2

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