Weather is probably a major factor when you plan your trip to El Paso, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually February and March with an average temp of 83°F, while the coldest months are November and October with an average of 80°F. The rainiest months in El Paso are May, October, August, and April, with each month seeing an average of 16 inches of rainfall.