Cicada 2024 Timeline Chart

Cicada 2024 Timeline Chart. In a few weeks, over a dozen states will be abuzz as trillions of periodical cicadas will emerge from their yearslong underground. Every brood is synchronized, meaning all clutches of.

There are 15 surviving periodical cicada broods, each identified by roman numerals. In a few weeks, over a dozen states will be abuzz as trillions of periodical cicadas will emerge from their yearslong underground.