Chattahoochee River near Sunrise Cove Marina

Chattahoochee River typically runs highest in March, at a median 964 cfs, and lowest in September, at 389 cfs. The highest flow on record for any single day is 16,300 cfs, in 2021.

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 69 years of record. Statistics published by the US Geological Survey for Chattahoochee River near Cornelia, GA (site 02331600). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.