How Long Will The Cicadas Be Here In 2024. The scientists suspect that if ants have an endless buffet of cicadas they might be less likely to disperse plant seeds. When the right year rolls around, they await a soil temperature above 18ºc or 64.4ºf, and then they emerge.

See where brood xix, xiii cicadas are emerging around the u.s. Here’s what ‘cicadageddon 2024’ will sound like, and how long it will last: