December Weather in Atlanta

By: setearning

Daily high temperatures decrease by 6°F, from 59°F to 53°F, rarely falling below 40°F or exceeding 70°F. Daily low temperatures decrease by 5°F, from 41°F to 36°F, rarely falling below 23°F or exceeding 54°F.

The month of December in Atlanta experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 46% to 53% 


A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Atlanta, the chance of a wet day over the course of December is essentially constant, remaining around 29% throughout. 


The average sliding 31-day rainfall during December in Atlanta is essentially constant, remaining about 3.9 inches throughout, and rarely exceeding 7.0 inches or falling below 1.6 inches

Rain Fall

Over the course of December in Atlanta, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 55 minutes of daylight and the longest day is December 1, with 10 hours, 5 minutes of daylight. 


The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. 


This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. 


The month of December in Atlanta is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season decreasing from 17% to 0% over the course of the month. 

Growing Season

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