About 1" long, if that. This little guy had some amazing leaps. Cooler night, about 75 degrees. No dark eye stripe, so I was guessing a cadaverina, but I don't know for sure, so I've attached 7 photos for the experts to tell me!
The California tree frog or California chorus frog (Pseudacris cadaverina) is a "true" tree frog (family Hylidae) from southern California (USA) and Baja California (Mexico). Until recently, the California tree frog was classified in the genus Hyla.