Castroville California Climate Data

Monthly Average Climate Data for Castroville California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January42.5 °F60.3 °F3.31 in.
February43.4 °F60.7 °F3.31 in.
March44.5 °F61.7 °F2.23 in.
April45.6 °F60.9 °F1.31 in.
May49.0 °F61.4 °F0.45 in.
June51.5 °F63.4 °F0.13 in.
July54.3 °F63.7 °F0.05 in.
August54.7 °F64.6 °F0.05 in.
September53.2 °F65.8 °F0.09 in.
October49.5 °F66.5 °F0.7 in.
November45.2 °F64.3 °F1.65 in.
December42.1 °F60.1 °F3.21 in.
Annual48 °F62.8 °F16.49 in.

Climate Data for Castroville California

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateJan. 21 - Jan. 31
Average Days With Frost5-10 Days
Plant Hardiness Zone - 2023Zone 9b : 25°F to 20°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
2024 plantmaps.com