The most pleasant months of the year for the 30609 zip code are May, September and October. In the 30609 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for the 30609 zip code with an average high temperature of 89.8°, which ranks it as cooler than most places in Georgia. January is the snowiest month in the 30609 zip code with 0.6 inches of snow, and 1 month of the year have significant snowfall. The most uncomfortably humid months are July, August and June.