Webb County's Climate: Hot, Dry, and Semi-Arid
Webb County covers 3,363 square miles of rolling South Texas brush country. The landscape is mostly mesquite, thorny shrubs, and cactus. Elevation ranges from 400 to 700 feet. Summers are long and very hot — temperatures routinely climb past 100°F. Winters are mild but can include brief freezes.
Annual rainfall averages around 20 inches, most of which comes in late summer thunderstorms. Droughts are common in this region. Water supply is a real concern for both residents and ranchers. Extreme heat in summer is a health hazard for outdoor workers and elderly residents. Plan for high cooling costs if you live here.
Content last revised 2026-07-11