It'll be a noisy summer in Illinois. It's a perfect storm of cicadias. Hear about it at urban legends and stranger truths. The US state of Illinois now faces a historic summer of cicadias. Periodic cicadias live as grubs for many years underground before emerging. They're brief and they're noisy as adults. Some of these broods wait 13 years and some other ones wait 17 years. But this year in Illinois, for the first time since 1803, the two broods of cycles are going to coincide