Complex sentence: Rainfall in Georgia peaked at 8 inches (203 mm) in Mount Vernon, which assisted firefighters in combating wildfires in the southern portion of the state; the rainfall gave thousands of workers a brief respite after they had worked daily for over a month.
Split into simpler sentences: Rainfall in Georgia peaked at 8 inches (203 mm) in Mount Vernon. The precipitation assisted firefighters in combating wildfires in the southern portion of the state, which gave thousands of workers a brief respite after they had fought the fires daily for over a month.