Julian California Climate Data

Monthly Average Climate Data for Julian California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January3.2 °C12.9 °C131.57 mm
February2.9 °C12.7 °C147.32 mm
March4 °C15.2 °C106.93 mm
April4.8 °C17.3 °C48.77 mm
May7.6 °C21.1 °C21.59 mm
June11.9 °C26.7 °C3.3 mm
July16 °C30.3 °C7.62 mm
August16.1 °C30.9 °C11.94 mm
September13.3 °C28.2 °C12.19 mm
October8.9 °C22.4 °C27.69 mm
November5.6 °C16.9 °C54.86 mm
December2.7 °C12.4 °C97.79 mm
Annual8.1 °C20.6 °C671.57 mm

Climate Data for Julian California

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
2024 plantmaps.com