Rio Grande City Texas Climate Data

Monthly Average Climate Data for Rio Grande City Texas

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January8.7 °C21.6 °C17.78 mm
February10.9 °C24.3 °C19.56 mm
March14.3 °C27.8 °C24.13 mm
April17.9 °C31.4 °C35.05 mm
May21.7 °C34.3 °C68.58 mm
June23.8 °C36.7 °C59.94 mm
July24.4 °C37.4 °C39.62 mm
August24.3 °C37.7 °C31.75 mm
September22.3 °C34.6 °C116.08 mm
October18.3 °C31.3 °C52.07 mm
November13.3 °C26.2 °C25.65 mm
December9.3 °C22.2 °C21.84 mm
Annual17.4 °C30.5 °C512.05 mm

Climate Data for Rio Grande City Texas

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost5-10 Days
Plant Hardiness Zone - 2023Zone 9b : -3.9°C to -1.1°C
Plant Hardiness Zone - 2012Zone 9b : -3.9°C to -1.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationBSh - Hot Semi-Arid Climate
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