Rosemead California Climate Data

Monthly Average Climate Data for Rosemead California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January46.7 °F69.2 °F3.76 in.
February47.8 °F69.2 °F4.29 in.
March50.0 °F71.3 °F2.73 in.
April52.5 °F76.1 °F0.89 in.
May56.8 °F77.7 °F0.39 in.
June60.4 °F82.6 °F0.12 in.
July63.9 °F87.6 °F0.03 in.
August64.6 °F89.7 °F0.01 in.
September62.9 °F88.6 °F0.14 in.
October57.9 °F82.6 °F0.59 in.
November51.0 °F74.9 °F0.78 in.
December45.8 °F68.4 °F2.62 in.
Annual55 °F78.2 °F16.35 in.

Climate Data for Rosemead California

Average First Frost DateJan. 1 - Jan. 10
Average Last Frost DateFeb. 1 - Feb. 10
Average Days With FrostFrost Rare
Plant Hardiness Zone - 2023Zone 10a : 30°F to 25°F
Plant Hardiness Zone - 2012Zone 10a : 30°F to 25°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate