Simi Valley California Climate Data

Monthly Average Climate Data for Simi Valley California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January7.8 °C18.7 °C93.47 mm
February7.4 °C18.9 °C104.9 mm
March8.2 °C20.2 °C65.53 mm
April8.9 °C21.3 °C16.51 mm
May10.8 °C22.7 °C10.67 mm
June12.6 °C24.9 °C1.02 mm
July14.8 °C28.1 °C0.76 mm
August14.9 °C29.1 °C0 mm
September14.4 °C28.6 °C2.03 mm
October12.3 °C25.8 °C15.49 mm
November9.6 °C22.4 °C22.35 mm
December7.3 °C18.6 °C63.5 mm
Annual10.8 °C23.3 °C396.23 mm

Climate Data for Simi Valley California

Average First Frost DateNo Frost
Average Last Frost Date
Average Days With FrostFrost Free
Plant Hardiness Zone - 2023Zone 10a : -1.1°C to 1.7°C
Plant Hardiness Zone - 2012Zone 9b : -3.9°C to -1.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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