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United States weather

Weather in Gwinnett County, Georgia for December 2026

Your guide to Gwinnett County weather in December - trends and predictions

    Temperatures

  • In general, the average temperature in Gwinnett County at the beginning of December is 6.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 13.1 °F by the end of December.

    • Rain 🌧️

  • Gwinnett County experiences moderate rainfall in December, with an average of 6 rainy days and a total precipitation of 336.8 mm.

    • More

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Average dry days
25
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
10°/4°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Gwinnett County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
6°
2
Heavy rain
5°
3
Mist
4°
4
Fog
8°
5
Moderate or heavy rain shower
6°
6
Fog
9°
7
Fog
6°
8
Moderate rain
9°
9
Overcast
5°
10
Fog
12°
11
Overcast
8°
12
Sunny
15°
13
Fog
9°
14
Moderate rain
12°
15
Sunny
3°
16
Sunny
9°
17
Overcast
6°
18
Fog
10°
19
Moderate rain
14°
20
Sunny
13°
21
Overcast
16°
22
Sunny
12°
23
Overcast
12°
24
Mist
17°
25
Fog
15°
26
Fog
14°
27
Mist
18°
28
Fog
15°
29
Overcast
15°
30
Sunny
5°
31
Cloudy
10°

Temperatures trend during December in Gwinnett County

See the weather trend as well as the moving average line

December weather in Gwinnett County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
Dec. 1 Overcast
Overcast
 6° /2° 0 mm 1
Dec. 2 Heavy rain
Heavy rain
 5° /1° 198.3 mm 0
Dec. 3 Mist
Mist
 4° /0° 0 mm 1
Dec. 4 Fog
Fog
 8° /0° 0 mm 0
Dec. 5 Moderate or heavy rain shower
Moderate or heavy rain shower
 6° /2° 44.6 mm 1
Dec. 6 Fog
Fog
 9° /6° 0 mm 0
Dec. 7 Fog
Fog
 6° /2° 0 mm 0
Dec. 8 Moderate rain
Moderate rain
 9° /5° 16 mm 0
Dec. 9 Overcast
Overcast
 5° /3° 0 mm 0
Dec. 10 Fog
Fog
 12° /1° 0 mm 1
Dec. 11 Overcast
Overcast
 8° /0° 0 mm 1
Dec. 12 Sunny
Sunny
 15° /3° 0 mm 1
Dec. 13 Fog
Fog
 9° /4° 0 mm 1
Dec. 14 Moderate rain
Moderate rain
 12° /-2° 17 mm 1
Dec. 15 Sunny
Sunny
 3° /-5° 0 mm 1
Dec. 16 Sunny
Sunny
 9° /-1° 0 mm 1
Dec. 17 Overcast
Overcast
 6° /2° 0 mm 0
Dec. 18 Fog
Fog
 10° /7° 49.4 mm 0
Dec. 19 Moderate rain
Moderate rain
 14° /6° 11.5 mm 1
Dec. 20 Sunny
Sunny
 13° /1° 0 mm 1
Dec. 21 Overcast
Overcast
 16° /5° 0 mm 1
Dec. 22 Sunny
Sunny
 12° /4° 0 mm 1
Dec. 23 Overcast
Overcast
 12° /6° 0 mm 0
Dec. 24 Mist
Mist
 17° /12° 0 mm 1
Dec. 25 Fog
Fog
 15° /13° 0 mm 0
Dec. 26 Fog
Fog
 14° /13° 0 mm 0
Dec. 27 Mist
Mist
 18° /14° 0 mm 0
Dec. 28 Fog
Fog
 15° /13° 0 mm 0
Dec. 29 Overcast
Overcast
 15° /1° 0 mm 1
Dec. 30 Sunny
Sunny
 5° /-3° 0 mm 1
Dec. 31 Cloudy
Cloudy
 10° /-2° 0 mm 1
Next
Important Notice
Our weather forecast for Gwinnett County in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Gwinnett County forecast closer to your planned date for the most up-to-date weather information.
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Gwinnett County in December - FAQ

What are the expected maximum and minimum temperatures in Gwinnett County during December?
Prepare for cooler days with highs just around 10° and colder nights, dipping below 4°.

How much rainfall should be expected in Gwinnett County during December?
Significant rainfall exceeding 336.8 mm is expected in Gwinnett County during December, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Gwinnett County during December?
The average wind speed in Gwinnett County during December is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Gwinnett County

Explore the daily rainfall trends and prepare for Gwinnett Countys December weather 💧
Typically, Gwinnett County has 6 rainy days in December with a total of 336.8 mm of rainfall.
Top locations in Gwinnett County
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Lawrenceville
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Location coordinates Where is Gwinnett County?

Get accurate weather forecasts for Gwinnett County, located at latitude 33.956 and longitude -83.988. Stay updated with localized weather information tailored for Gwinnett County.

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