The number of days per year with more than 1 inch of precipitation will increase across the Southeast by the middle of the century, and double the number of heavy rainfall events are projected by late century.
Extreme rainfall events have increased in frequency and intensity in the Southeast, and will continue to increase in the future. Most of the region is projected to experience 6% to 25% more days each year with more than an inch of precipitation by the middle of the century. The largest increases (up to 25% increases) in extreme precipitation are expected across the Appalachian Mountains. The smallest increases (less than 10%) are expected across Arkansas, Louisiana and Mississippi.