Signal Hill California Climate Data

Monthly Average Climate Data for Signal Hill California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January8.7 °C19.6 °C72.39 mm
February9.3 °C19.4 °C81.03 mm
March10.6 °C20.1 °C45.47 mm
April11.8 °C21.3 °C14.73 mm
May14 °C22.1 °C5.59 mm
June15.9 °C23.6 °C2.29 mm
July17.7 °C25.9 °C1.02 mm
August18.1 °C27.1 °C0.25 mm
September17.3 °C26.8 °C2.54 mm
October14.8 °C24.8 °C10.92 mm
November11.2 °C22.3 °C20.07 mm
December8.4 °C19.4 °C52.32 mm
Annual13.2 °C22.7 °C308.62 mm

Climate Data for Signal Hill California

Average First Frost DateNo Frost
Average Last Frost Date
Average Days With FrostFrost Free
Plant Hardiness Zone - 2023Zone 10b : 1.7°C to 4.4°C
Plant Hardiness Zone - 2012Zone 10b : 1.7°C to 4.4°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
2024 plantmaps.com