Alpharetta Weather in December

December in Alpharetta averages 13°C (55°F) during the day and 2°C (36°F) at night. It is the wettest month of the year, with 144 mm (5.7 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Alpharetta in December

With this being the rainiest month, having an umbrella is essential to avoid unexpected rain. Historically, December sees about 12 days of rain, with a monthly average of 144 mm (5.7 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Alpharetta in December

Daytime temperatures in Alpharetta reach 13°C (55°F) in December, dropping to 2°C (36°F) at night. Winter occurs in December. Conditions are often most pleasant around the middle of the day. Nights fall to 2°C (36°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Alpharetta in December

The month brings about 164 hours of sunlight, offering a comfortable mix of sun and overcast.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Alpharetta. Our weather planner can help you explore destinations with more pleasant weather conditions.