Termite swarm risk in Grand Canyon Village, AZ

Swarms on warm spring days, usually in daylight and often within a day or two of rain, as the soil warms.

Needs no soil contact, so flights come straight out of dry structural wood. In the Southeast, Gulf, and Florida it swarms at night in spring and early summer; in California and Arizona it swarms on warm late-summer and fall days.

Swarms on warm nights after the summer monsoon rains across the desert Southwest.