Arroyo Grande California Climate Data

Monthly Average Climate Data for Arroyo Grande California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January7.4 °C17.9 °C74.93 mm
February7.6 °C17.9 °C86.61 mm
March8 °C18.5 °C71.12 mm
April8.4 °C19.6 °C23.88 mm
May9.6 °C19.2 °C10.92 mm
June10.9 °C20.7 °C2.03 mm
July12.5 °C20.8 °C1.52 mm
August12.5 °C21.1 °C0.51 mm
September11.9 °C21.8 °C2.03 mm
October10.7 °C21.8 °C18.54 mm
November9.1 °C20.4 °C35.31 mm
December7.1 °C17.7 °C64.52 mm
Annual9.6 °C19.8 °C391.92 mm

Climate Data for Arroyo Grande California

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateFeb. 11 - Feb. 20
Average Days With Frost5-10 Days
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