Rancho San Diego California Climate Data

Monthly Average Climate Data for Rancho San Diego California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January44.7 °F67.9 °F2.45 in.
February45.8 °F68.1 °F2.89 in.
March48.5 °F69.0 °F2.0 in.
April50.9 °F71.1 °F0.89 in.
May55.5 °F72.9 °F0.36 in.
June58.9 °F75.8 °F0.05 in.
July62.6 °F80.5 °F0.09 in.
August63.9 °F82.8 °F0.03 in.
September62.1 °F82.8 °F0.15 in.
October56.4 °F78.9 °F0.54 in.
November49.2 °F73.3 °F1.05 in.
December44.1 °F67.5 °F2.05 in.
Annual53.6 °F74.2 °F12.55 in.

Climate Data for Rancho San Diego California

Average First Frost DateJan. 1 - Jan. 10
Average Last Frost DateJan. 21 - Jan. 31
Average Days With FrostFrost Rare
Plant Hardiness Zone - 2023Zone 10b : 35°F to 30°F
Plant Hardiness Zone - 2012Zone 10a : 30°F to 25°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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