San Jose California Climate Data

Monthly Average Climate Data for San Jose California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January41.5 °F58.8 °F3.06 in.
February43.6 °F61.7 °F3.21 in.
March45.8 °F65.4 °F2.33 in.
April47.6 °F69.0 °F1.18 in.
May51.4 °F73.5 °F0.48 in.
June54.5 °F78.6 °F0.12 in.
July57.1 °F81.1 °F0.0 in.
August57.3 °F81.1 °F0.04 in.
September55.7 °F80.3 °F0.07 in.
October51.5 °F75.2 °F0.66 in.
November45.4 °F65.2 °F1.29 in.
December41.1 °F58.6 °F2.76 in.
Annual49.4 °F70.7 °F15.2 in.

Climate Data for San Jose California

Average First Frost DateJan. 1 - Jan. 10
Average Last Frost DateFeb. 1 - Feb. 10
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9b : 25°F to 20°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate