Castaic California Climate Data

Monthly Average Climate Data for Castaic California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January44.1 °F65.1 °F3.87 in.
February43.6 °F65.9 °F4.35 in.
March45.4 °F69.6 °F2.5 in.
April47.6 °F74.1 °F0.74 in.
May51.4 °F79.1 °F0.5 in.
June55.3 °F85.7 °F0.04 in.
July60.3 °F92.7 °F0.07 in.
August60.7 °F94.1 °F0.02 in.
September58.7 °F90.8 °F0.08 in.
October53.9 °F82.1 °F0.53 in.
November48.0 °F72.6 °F0.78 in.
December43.6 °F64.6 °F2.75 in.
Annual51.1 °F78 °F16.23 in.

Climate Data for Castaic California

Average First Frost DateJan. 11 - Jan. 20
Average Last Frost DateFeb. 1 - Feb. 10
Average Days With Frost5-10 Days
Plant Hardiness Zone - 2023Zone 10a : 30°F to 25°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate