How many chill hours does 92309 get?

92309 averages 968 chill hours per winter, ranging from 631 to 1320 across the last 10 years.

What hardiness zone is 92309?

92309 is in USDA hardiness zone 9a.

Location almanac

The short answer

92309 averages 968 chill hours per winter (631–1,320 across 10 years) in USDA zone 9a.

92309 climate
Average chill hours	968 (631–1,320 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically February 5 – February 28
First fall frost	typically November 11 – December 29

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 92309’s chill hours and zone:

Chill and zone requirements are comfortably met in 92309.

Show 87 more good fit varieties

How many chill hours does 92309 get?: 92309 averages 968 chill hours per winter, ranging from 631 to 1320 across the last 10 years.
What hardiness zone is 92309?: 92309 is in USDA hardiness zone 9a.

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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