Millbrae California Climate Data

Monthly Average Climate Data for Millbrae California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January6.8 °C14.4 °C112.27 mm
February7.6 °C15.8 °C113.79 mm
March8.5 °C17 °C81.28 mm
April9.2 °C18.2 °C41.91 mm
May10.8 °C19.4 °C15.75 mm
June12 °C21.1 °C4.32 mm
July13.2 °C21.9 °C1.78 mm
August13.4 °C22.4 °C1.27 mm
September13.2 °C23.6 °C2.03 mm
October11.7 °C22.1 °C22.61 mm
November8.8 °C17.6 °C52.07 mm
December6.6 °C14.6 °C113.54 mm
Annual10.2 °C19 °C562.62 mm

Climate Data for Millbrae California

Average First Frost DateFrost Rare
Average Last Frost DateFrost Rare
Average Days With FrostFrost Free
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 ClassificationCsb - Warm-Summer Mediterranean Climate