San Isidro Texas Climate Data

Monthly Average Climate Data for San Isidro Texas

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January8.3 °C21.6 °C25.4 mm
February10.8 °C24.2 °C24.89 mm
March14.2 °C27.6 °C28.96 mm
April17.6 °C30.4 °C34.29 mm
May21.2 °C33.7 °C65.53 mm
June23.2 °C36.2 °C63.25 mm
July23.8 °C36.7 °C58.17 mm
August23.6 °C37.1 °C39.12 mm
September21.7 °C33.9 °C112.01 mm
October17.6 °C31.2 °C59.94 mm
November12.8 °C26.2 °C32.77 mm
December9.7 °C21.9 °C26.67 mm
Annual17 °C30.1 °C571 mm

Climate Data for San Isidro Texas

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateJan. 21 - Jan. 31
Average Days With FrostFrost Rare
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 ConditionsAbnormally Dry
Köppen Climate ClassificationBSh - Hot Semi-Arid Climate
2025 plantmaps.com