Upland California Climate Data

Monthly Average Climate Data for Upland California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January6.7 °C19.2 °C90.68 mm
February7.1 °C19.4 °C116.08 mm
March8.1 °C21.2 °C70.36 mm
April9.4 °C23.2 °C21.84 mm
May11.6 °C25.3 °C13.97 mm
June13.9 °C28.9 °C3.05 mm
July16.6 °C32.6 °C1.78 mm
August17.2 °C33.6 °C0.51 mm
September16.2 °C31.9 °C3.3 mm
October12.9 °C27.2 °C18.8 mm
November9.1 °C22.9 °C25.15 mm
December6.6 °C18.6 °C64.26 mm
Annual11.3 °C25.3 °C429.78 mm

Climate Data for Upland California

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost5-10 Days
Plant Hardiness Zone - 2023Zone 10a : -1.1°C to 1.7°C
Plant Hardiness Zone - 2012Zone 9b : -3.9°C to -1.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate
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