Spring and early summer bring the most visitors to the park. Folks clear out in the height of summer as temperatures reach the mid-90s°F, and then early fall brings people back to the park for the apple harvest and crisp autumn temperatures. Still, the park could seldom be called crowded—though the campground does fill daily throughout spring, summer, and fall. Trails remain fairly unpopulated year-round, perhaps because of the difficult nature of many of them. You're not bound to get wet, since annual rainfall is only about 7 inches. When it does rain, devastating flash floods can wipe out park roads and leave you stranded. Snowfall is usually light, especially at lower elevations.
Spring is undoubtedly one of the most beautiful times to visit this region, but weather can be unpredictable, and sudden, short-lived snowstorms are not uncommon. Although summer days can be uncomfortably hot and winter storms potentially fierce, central Utah has a generally moderate climate with four distinct seasons.