When you travel with your pet, keeping tabs on the weather can make the trip safe and fun for everyone. The hottest months are usually July and August with an average temp of 96°F, while the coldest months are January and February with an average of 70°F. From January through March, the daytime average is 89°F and the nighttime average is 57°F. Between April and June, temperatures average 110°F during the day and 73°F at night. July through September averages 112°F during the day and 82°F at night. In October-December, the average temperature is 99°F during the day and 61°F at night.