Climate / Weather
Cameron County Has a Subtropical Climate — Hot, Humid, and Hurricane-Prone
Cameron County's subtropical climate means mild winters, very hot summers, about 27 inches of rain per year, and direct exposure to Gulf of Mexico hurricanes.
January nights average around 52°F, and July daytime highs average around 94°F. Annual rainfall averages about 27 inches, with the wettest months in late summer and fall — the same season as hurricane risk. The county's location on the Gulf of Mexico means it can receive direct hurricane landfalls.
Heat is a real concern during outdoor work or recreation. Flash flooding is possible during heavy rain events, especially in low-lying areas. Winter freezes are rare but can damage citrus crops and pipes — severe cold snaps have caused historic crop losses in the valley. Check National Weather Service forecasts for the Brownsville area at weather.gov.
Source to confirm: Texas Almanac — Cameron County