The Climatic Data report linked above also mentions snowstorms before the modern era.
Georgia:
1740 December 6 GEORGIA
"At Savannah, 4 or 5 inches of snow was left by the storm that began in early morning and ended
about 10:00 A.M. It melted by noon."
1771 December GEORGIA
"In Savannah, a cold rain changed to sleet, then snow, and the ground remained icy for two or
three days. "
1775 December 23 - 25 GEORGIA AND SOUTH CAROLINA
"In Western South Carolina on the Reedy River, it snowed without stopping for 30 hours, covering
the ground about 2 feet deep. Near Winston-Salem, the snow was one and a half feet deep. In
Georgia it was said to be generally 18 inches deep. Troops taking part in the Revolutionary War
campaigns in the area marched in snow for up to 7 days."
1800 January 9 - 10 GEORGIA, FLORIDA AND SOUTH CAROLINA
"This storm seemed to have left the greatest amounts ever reported in the region. At Savannah
the snow was 16 to 18 inches deep on the level and 3 feet deep in drifts. There were 6 to 7 inches
near Berkeley, South Carolina. Five inches fell on the Florida-Georgia border near the mouth
of St. Mary' s River."
1803 February 15 - 16 GEORGIA, SOUTH CAROLINA AND NORTH CAROLINA
"At Savannah on February 15, "a considerable fall" occurred At Salem, North Carolina, it fell
12 to 18 inches deep; at Raleigh, North Carolina, 18 inches to 2 feet."
1837 March 4 GEORGIA AND SOUTH CAROLINA
"At Savannah, 8 to 12 inches of snow fell; at Charleston, 2 inches."
1857 January 17 - 19 GEORGIA, SOUTH CAROLINA AND NORTH CAROLINA
"Amounts in South Carolina were 6 inches at Spartanburg, 2.5 at Aiken, In Georgia, Athens had 8
inches and Augusta, 2. Coastal locations had less than one inch. In North Carolina, there was a
belt through the central and northern counties. Chapel Hill reported 12 to 15 inches; Weldon,
16 inches; Gaston, 22; and Murfreesboro, 10."
Source: https://www1.ncdc.noaa.gov/pub/data/papers/NOAATECHEDSNCC2free.pdf
