How many chill hours does 92307 get?

92307 averages 1508 chill hours per winter, ranging from 942 to 1984 across the last 10 years.

What hardiness zone is 92307?

92307 is in USDA hardiness zone 8b.

Location almanac

The short answer

92307 averages 1,508 chill hours per winter (942–1,984 across 10 years) in USDA zone 8b.

92307 climate
Average chill hours	1,508 (942–1,984 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically March 7 – April 7
First fall frost	typically November 10 – December 5

Computed from 10 winters of ERA5 hourly temperature (Open-Meteo, 2015–2025); zones from USDA PHZM 2023. Data updated July 3, 2026. See methodology.

Every variety in our database, checked against 92307’s chill hours and zone:

Chill and zone requirements are comfortably met in 92307.

Show 129 more good fit varieties

How many chill hours does 92307 get?: 92307 averages 1508 chill hours per winter, ranging from 942 to 1984 across the last 10 years.
What hardiness zone is 92307?: 92307 is in USDA hardiness zone 8b.

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[1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
[2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026