Despite having some of the strictest restrictions in the country, California’s coronavirus cases are climbing once again. In fact, California’s COVID-19 rate is now twice that of Florida, where restrictions are almost nonexistent.

The reason is simple: COVID-19, like many viruses, follows our seasonal behavior. Florida’s cases spiked during the summer months, which is when Floridians spend the most time indoors. As soon as the temperatures cooled and Floridians went back outside, the number of COVID-19 cases plunged.