Atascadero California Climate Data

Monthly Average Climate Data for Atascadero California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January37.0 °F61.9 °F5.02 in.
February38.2 °F63.4 °F4.85 in.
March40.2 °F66.5 °F3.98 in.
April41.2 °F69.8 °F1.33 in.
May44.7 °F74.2 °F0.49 in.
June48.8 °F82.2 °F0.09 in.
July52.6 °F86.2 °F0.04 in.
August52.0 °F87.7 °F0.02 in.
September49.4 °F85.3 °F0.09 in.
October45.2 °F78.4 °F0.98 in.
November39.7 °F69.2 °F1.74 in.
December35.9 °F61.5 °F3.73 in.
Annual43.7 °F73.9 °F22.36 in.

Climate Data for Atascadero California

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateMar. 21 - Mar. 31
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 9a : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 9a : 20°F to 25°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate