Castroville Texas Climate Data

Monthly Average Climate Data for Castroville Texas

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January40.4 °F64.4 °F1.71 in.
February44.3 °F68.8 °F1.59 in.
March51.0 °F75.0 °F2.43 in.
April57.6 °F81.7 °F2.38 in.
May66.0 °F87.6 °F4.03 in.
June71.8 °F93.2 °F3.49 in.
July73.4 °F95.8 °F2.36 in.
August73.3 °F97.0 °F2.66 in.
September68.7 °F91.3 °F3.15 in.
October59.7 °F83.7 °F3.43 in.
November49.5 °F72.9 °F2.38 in.
December42.0 °F65.6 °F1.69 in.
Annual58.1 °F81.4 °F31.3 in.

Climate Data for Castroville Texas

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateMar. 1 - Mar. 10
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9a : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 8b : 15°F to 20°F
Current Drought ConditionsExtreme Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate
2024 plantmaps.com