Glynn County Climate
Glynn County, Georgia
Avg Annual Temp
68.8°F
Annual Precip
47.8"
Annual Snowfall
0.0"
Extreme Heat Days
59.900000000000006
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Glynn County Weather
Exceptional Warmth on the Coast
Glynn County’s average annual temperature of 68.8°F is vastly higher than the national median. The coastal location creates a humid, tropical feel that persists through most of the year.
One of Georgia’s Hottest Counties
At 68.8°F, Glynn is much warmer than the Georgia state average of 63.7°F. This makes it one of the most consistently hot regions in the state, even during the winter months.
Drier than the Interior South
The county receives 47.8 inches of rain, which is less than the state average of 51.4 inches. Coastal breezes often push heavy rain clouds further inland, leaving the coast slightly drier.
Endless Summer and Snowless Winters
Glynn faces 60 extreme heat days each year and a sweltering July average of 83.2°F. Winters are exceptionally mild, averaging 54.7°F with no recorded snowfall at all.
Prioritize Heat Safety and Airflow
With 60 days above 90°F, high-capacity cooling and hydration are essential for all residents. Because there is zero snow, winter planning focuses more on managing coastal humidity and seasonal storms.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.