ZIP Code 91342 Hardiness Zones and Climate Data

ZIP Code 91342 - Sylmar California is in 2023 USDA Hardiness Zones 9a (20°F to 25°F), 9b (25°F to 30°F) and 10a (30°F to 35°F)

Additional Gardening Related Climate Data for ZIP Code 91342 - Sylmar, California

2023 Hardiness Zone:Zone 9a: 20°F to 25°F
Zone 9b: 25°F to 30°F
Zone 10a: 30°F to 35°F
2012 Hardiness Zone:Zone 9a: 20°F to 25°F
Zone 9b: 25°F to 30°F
Zone 10a: 30°F to 35°F
1990 Hardiness Zone:Zone 10a: 30F to 35F
Average First Frost Date:December 11 - 20
Average Last Frost Date:February 11 - 20
Koppen-Geiger Climate Zone:Csa - Hot-Summer Mediterranean Climate
Ecoregion:
Current Drought Status:Exceptional Drought
Heat Zone Days: 91 - 120 days Over 86°F

Annual Climate Data for ZIP Code 91342 - Sylmar, CA

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)43434446505559605852464250
Avg Max Temp (°F)65676974788592938780716577
Avg Precip (In.)4.444.64.171.08.49.13.03.21.4.661.522.4320.16

Source Data:

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