Cicadas typically come out in late spring to early summer when the soil temperature about 8 inches underground reaches around 64°F (18°C). In warmer states, cicadas usually begin emerging in late April or May, while in cooler states, their emergence tends to happen in May or early June. They remain active above ground for about 4 to 6 weeks after emerging. This emergence is synchronized for periodical cicadas, often occurring every 13 or 17 years depending on the brood. For example, in 2025, Brood XIV cicadas, which emerge every 17 years, are expected to come out starting in late April in southern areas like northern Georgia and then spread northward through May. These cicadas typically emerge following warm rains and soil warming to the threshold temperature of around 64°F. The timing can vary across different regions based on local soil temperatures.