How Often Do Cicadas Come Out? Annual vs. Periodical Species
If you are wondering how often cicadas come out, the short answer is that it depends on the species. Some cicadas appear every year, while the famous periodical cicadas emerge on a 13 or 17 year cycle, then vanish underground again as nymphs. If you are asking when cicadas come out, the timing is tied to soil temperature, season, and the life cycle of the species in your area.
Annual Cicadas vs. Periodical Cicadas
Annual cicadas come out every summer
Annual cicadas complete their life cycle in about 2 to 5 years, but adults emerge every year because different broods overlap. That means you can hear them almost every summer in many parts of the United States. These are the cicadas people notice droning in trees during hot weather, especially from late spring through late summer.
Periodical cicadas come out in massive synchronized broods
Periodical cicadas spend 13 or 17 years underground before emerging together in huge numbers. Their emergence is synchronized, so one brood can dominate a region for a few weeks, then disappear for another long stretch. If you are asking when the cicadas come back or when cicadas come out next, the answer depends on which brood lives in your area.
Why people confuse the two
Both kinds are called cicadas, both make loud calls, and both emerge in warm weather. The difference is timing. Annual cicadas are present every year, while periodical cicadas return on a long schedule that can feel rare and dramatic. That is why searches like when do cicadas come out again or when will cicadas emerge this year can mean two very different things.
When Do Cicadas Come Out?
The season is late spring through summer
Most cicadas come out when the ground warms and the air stays hot. In the U.S., that means late spring, summer, and into early fall for annual species. Periodical cicadas emerge in late spring or early summer, then spend their adult lives above ground for only a few weeks.
Temperature matters more than the calendar alone
Cicadas do not respond to the date on a calendar as much as to soil conditions. For periodical cicadas, nymphs wait until soil temperatures rise enough for emergence. Once that threshold is met, they climb out, shed their skins, and start calling. That is why when are cicadas active and when are the cicadas coming both depend on local weather.
Daytime and nighttime behavior
Adult cicadas are most active during the day. Males call loudly in daylight, especially late morning through afternoon, to attract mates. At night, they rest on trees and vegetation. If you hear cicadas before sunrise or after sunset, it is usually because the daytime heat has already warmed the area and the adults are still present in the canopy.
When Will Cicadas Come Back Again?
Annual cicadas return every year, but in waves
If you want to know when do cicadas come back, annual cicadas answer that question with every warm season. Different species emerge at different times, so one yard may get loud in June while another is quieter until August. Their return is not one single event, it is a rolling summer pattern.
Periodical cicadas return on a fixed cycle
Periodical cicadas come back in 13 or 17 years, and the year is determined by the brood. Once you know the brood in your state or county, you can predict when will the cicadas come back and when will cicadas emerge with much more accuracy. Their next appearance is not random, it is scheduled by their life cycle.
How to tell if your area is due for an emergence
- Check whether your state has annual cicadas, periodical cicadas, or both.
- Look for reports of new brood activity in your county or region.
- Watch for cicada nymph holes in soil, especially near tree roots.
- Listen for early seasonal calling from mature trees in warm weather.
If your area has a periodical brood, those signs can appear a few weeks before the full emergence. If not, you are likely dealing with annual cicadas that come out every summer.
What Happens When Cicadas Emerge?
Nymphs climb out of the soil
When cicadas come out, the underground nymphs tunnel upward and exit the soil at night. They crawl onto trunks, fence posts, and stems, then latch on and split their outer skin. The adult cicada emerges, pumps fluid into its wings, and hardens before flying into the canopy.
Adults feed on plant fluids and mate quickly
Adult cicadas sip xylem fluid from trees and shrubs. They do not chew leaves or destroy plants the way caterpillars do. Their main job above ground is mating and egg laying. Females slice into small twigs and deposit eggs, which later hatch into tiny nymphs that drop to the soil and begin the underground stage.
The adult stage is short
Most adult cicadas live only a few weeks above ground. That brief window is when you see the loudest calling, the most movement, and the most visible damage on twigs where eggs are laid. After that, the next generation disappears underground for years.
How Often Do Cicadas Come Out by Type?
Annual cicadas
Annual cicadas come out every year, with adults appearing across the warm months. The species mix changes by region, but the basic pattern stays the same. This is the answer for people asking how often do cicadas emerge in yards, parks, and suburban trees across much of the country.
Periodical cicadas
Periodical cicadas come out every 13 or 17 years, depending on the brood. In a brood year, the emergence can be intense and widespread. In the years between broods, the adults are absent and the nymphs remain underground feeding on root fluids.
Prime time to hear them
If you want to know what season do cicadas come out, summer is the main answer. Annual species can start in late spring and continue into fall. Periodical species concentrate their emergence in late spring and early summer, then decline after a few weeks.
Why Cicadas Matter in Gardens and Landscapes
They are not pests in the usual sense
Cicadas do not eat garden plants the way aphids or beetles do. Their nymphs feed underground on roots, and adults feed on sap from woody plants. In healthy landscapes, they are part of the food web, supporting birds, squirrels, bats, and other predators. Their loud arrival is more of a seasonal event than a destructive infestation.
Egg laying can damage small twigs
The main plant injury happens when females cut into thin branches to lay eggs. Young trees and newly planted ornamentals are the most vulnerable because repeated slits can weaken twigs. Mature trees handle this much better, and the scars are usually temporary.
They support the ecosystem
Cicadas provide a massive pulse of protein for wildlife when they emerge. Their bodies, shed skins, and eggs all become food or habitat for other organisms. In native ecosystems, that boom supports birds, mammals, fungi, and scavenging insects.
How to Prepare Your Yard for Cicada Season
Protect young trees with simple barriers
If periodical cicadas are due in your area, wrap young trunks and small branches with fine mesh or lightweight garden netting before emergence starts. Secure the material so adults cannot easily reach the bark to lay eggs. Remove the cover after the flight period ends.
Prune before emergence, not during it
Finish pruning well before the expected season. Once cicadas start laying eggs, pruning can remove branches that already hold eggs and can also expose fresh cuts. For young trees, avoid heavy pruning until the emergence window has passed.
Let mature trees stand
Mature trees do not need special treatment in most cases. They can handle a cicada emergence without lasting harm. The most useful step is to protect saplings and newly planted trees, since those are the plants most likely to suffer twig breakage.
Frequently Asked Questions
When do cicadas come out again?
Annual cicadas come out again every warm season. Periodical cicadas come out again after 13 or 17 years, depending on the brood. If you know the species in your area, you can narrow the timing to a specific summer or emergence year.
When will cicadas come back?
Annual cicadas come back each year, usually from late spring through summer. Periodical cicadas come back only in their brood year, so the answer is based on a long underground cycle rather than a yearly return.
When are cicadas active?
Cicadas are active in warm daylight hours. Males call most strongly during the hottest part of the day, and adults rest at night in trees and shrubs. Their active season is late spring through summer for most U.S. species.
When do the cicadas come out next?
For annual cicadas, next means the next summer season in your region. For periodical cicadas, it means the next brood year. The exact timing depends on whether your area has 13 year or 17 year cicadas and which brood is scheduled to emerge.
What season do cicadas come out?
Cicadas come out in late spring and summer. Annual species can extend into early fall. Periodical cicadas cluster their emergence in late spring or early summer and remain above ground for only a short period.