Temperatures and climate vary at the Grand Canyon, depending on the elevation. The top of the canyon has colder, wetter weather while the Phantom Ranch area at the bottom of the canyon is drier and hotter. In summer, average highs are more than 30 degrees warmer than average lows in the park. Late summer also brings a monsoon season with thunderstorms.
In winter, the top of the canyon can get snow but it usually melts before reaching the canyon floor.