Geographic Snowfall Differences
Snowfall in Georgia is not uniform across the state, exhibiting distinct patterns tied to elevation and latitude. The northern region, particularly the North Georgia Mountains, experiences the most frequent and heaviest snow. This area can receive an average of 4 to 18 inches of snow annually, with peaks above 3,500 feet sometimes accumulating between 10 and 25 inches per season. Brasstown Bald, Georgia’s highest peak, averages 30 to 40 inches of snow each winter.
Moving south into the Piedmont region, which includes the metropolitan Atlanta area, snowfall becomes less frequent but still occurs. Atlanta typically receives around 2.2 to 2.9 inches of snow per year, averaging about two snowfall days annually. The southern parts of the Piedmont might see snow approximately every other year, while areas closer to the foothills could experience snow a couple of times annually, usually with trace amounts up to 2 inches.
The Coastal Plain and South Georgia regions rarely see snow. When it does occur, it is generally very light, often just a trace amount or nothing at all.
Common Snowfall Patterns and Timing
Snowfall events in Georgia generally occur from December through March. While infrequent in many areas, January is often the coldest month and therefore the most probable time for snow. Even when snow falls, it often melts quickly due to ground temperatures that can remain above freezing, limiting prolonged accumulation.
Conditions for Snow in Georgia
For snow to occur in Georgia, specific atmospheric conditions must align, primarily involving cold air, adequate moisture, and a favorable storm track. A persistent influx of cold air is necessary throughout the entire atmospheric column for precipitation to fall as snow. This cold air often originates from Arctic air masses that push southward into the state. Temperatures must drop sufficiently to or below freezing for snow formation and accumulation.
Along with cold air, a reliable source of moisture is needed to produce precipitation. This moisture typically comes from low-pressure systems that move across the region. Without sufficient moisture, even very cold temperatures will not result in snowfall. The combination of cold air and moisture is fundamental for any winter precipitation event.
The path a winter storm takes is also highly influential in determining whether Georgia receives snow, ice, or rain. For instance, low-pressure systems tracking further south, often originating from the Gulf of Mexico, can bring significant snow to parts of Georgia. Conversely, storm tracks that remain too far north can result in warmer temperatures and rain for much of the state, even if cold air is present.