How many chill hours does 92234 get?

92234 averages 119 chill hours per winter, ranging from 38 to 349 across the last 10 years.

What hardiness zone is 92234?

92234 is in USDA hardiness zone 10a.

Location almanac

The short answer

92234 averages 119 chill hours per winter (38–349 across 10 years) in USDA zone 10a.

92234 climate
Average chill hours	119 (38–349 across 10 winters)
USDA hardiness zone	10a

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 92234’s chill hours and zone:

Chill and zone requirements are comfortably met in 92234.

Possible in a good year or a favorable microclimate — click through for the caveats.

Show 1 more marginal variety

How many chill hours does 92234 get?: 92234 averages 119 chill hours per winter, ranging from 38 to 349 across the last 10 years.
What hardiness zone is 92234?: 92234 is in USDA hardiness zone 10a.

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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