Harlingen has a humid subtropical climate bordering on a tropical savannah climate with 11 months averaging above the 64.4 °F (18 °C) threshold. Summers are long, and very hot with hot days and warm nights. Winters are very warm with warm days and cool nights. Precipitation peaks during September with 5.22 inches (133 mm) of precipitation falling.
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Clouds
Air quality US AQI
Sun