Summers are hot with June being the hottest month, averaging during the day and during the night. Temperatures can easily exceed on most days and it can occasionally exceed . Most of the precipitation falls during the summer months, when the monsoon moves up northwards, causing moist air from the Gulf of California and the Gulf of Mexico to move into the city. Afternoon storms are common during the monsoon season and they can be accompanied with hail and thunderstorms. The days are still warm to hot in July and August, though slightly cooler due to the presence of the rain, with an average high of . Humidity is also higher during this time, averaging 53%.