Rosemead California Climate Data

Monthly Average Climate Data for Rosemead California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January8.2 °C20.7 °C95.5 mm
February8.8 °C20.7 °C108.97 mm
March10 °C21.8 °C69.34 mm
April11.4 °C24.5 °C22.61 mm
May13.8 °C25.4 °C9.91 mm
June15.8 °C28.1 °C3.05 mm
July17.7 °C30.9 °C0.76 mm
August18.1 °C32.1 °C0.25 mm
September17.2 °C31.4 °C3.56 mm
October14.4 °C28.1 °C14.99 mm
November10.6 °C23.8 °C19.81 mm
December7.7 °C20.2 °C66.55 mm
Annual12.8 °C25.6 °C415.3 mm

Climate Data for Rosemead California

Average First Frost DateJan. 1 - Jan. 10
Average Last Frost DateJan. 21 - Jan. 31
Average Days With FrostFrost Rare
Plant Hardiness Zone - 2023Zone 10a : -1.1°C to 1.7°C
Plant Hardiness Zone - 2012Zone 10a : -1.1°C to 1.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate
2024 plantmaps.com