Rock Island Texas Climate Data

Monthly Average Climate Data for Rock Island Texas

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January5.4 °C17.1 °C83.31 mm
February7.5 °C19 °C63.75 mm
March10.9 °C22.6 °C81.53 mm
April14.5 °C26.4 °C84.07 mm
May18.9 °C30.1 °C115.82 mm
June22.2 °C33 °C110.74 mm
July23 °C34.3 °C69.09 mm
August22.9 °C35.4 °C86.36 mm
September20.4 °C32.5 °C95.5 mm
October15.2 °C28.1 °C108.97 mm
November9.9 °C22.4 °C92.96 mm
December6.4 °C18.2 °C82.3 mm
Annual14.8 °C26.6 °C1074.4 mm

Climate Data for Rock Island Texas

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateMar. 11 - Mar. 20
Average Days With Frost20-30 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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