Arroyo Grande California Climate Data

Monthly Average Climate Data for Arroyo Grande California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January45.3 °F64.2 °F2.95 in.
February45.6 °F64.3 °F3.41 in.
March46.4 °F65.3 °F2.8 in.
April47.2 °F67.2 °F0.94 in.
May49.2 °F66.6 °F0.43 in.
June51.7 °F69.2 °F0.08 in.
July54.5 °F69.4 °F0.06 in.
August54.5 °F69.9 °F0.02 in.
September53.4 °F71.2 °F0.08 in.
October51.3 °F71.3 °F0.73 in.
November48.3 °F68.7 °F1.39 in.
December44.7 °F63.9 °F2.54 in.
Annual49.3 °F67.6 °F15.43 in.

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 : 30°F to 25°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate