Trillions of Cicadas to Emerge in Rare Double-Brood Event Across U.S.

For the first time in over two centuries, two broods of cicadas will simultaneously emerge across multiple states, marking a significant natural event.

• Two broods, Brood XIX and Brood XIII, will emerge in 17 states across the Southeast and Midwest, overlapping in Iowa and Illinois.
• The cicadas, which have been underground for 13 or 17 years, will start surfacing in mid-May as soil temperatures reach 64 degrees Fahrenheit.
• The emergence is expected to last from mid-May through late June, with cicadas dying about five weeks after surfacing.
• Cicadas provide ecological benefits such as aerating soil, enhancing water filtration, and serving as a food source for wildlife.
• This double emergence of cicadas, last recorded in 1803, will not occur again until 2245.

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