Castroville California Climate Data

Monthly Average Climate Data for Castroville California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January5.8 °C15.7 °C84.07 mm
February6.3 °C15.9 °C84.07 mm
March6.9 °C16.5 °C56.64 mm
April7.6 °C16.1 °C33.27 mm
May9.4 °C16.3 °C11.43 mm
June10.8 °C17.4 °C3.3 mm
July12.4 °C17.6 °C1.27 mm
August12.6 °C18.1 °C1.27 mm
September11.8 °C18.8 °C2.29 mm
October9.7 °C19.2 °C17.78 mm
November7.3 °C17.9 °C41.91 mm
December5.6 °C15.6 °C81.53 mm
Annual8.9 °C17.1 °C418.83 mm

Climate Data for Castroville California

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateFeb. 1 - Feb. 10
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 ClassificationCsb - Warm-Summer Mediterranean Climate
2024 plantmaps.com