How many chill hours does 92555 get?

92555 averages 531 chill hours per winter, ranging from 276 to 966 across the last 10 years.

What hardiness zone is 92555?

92555 is in USDA hardiness zone 9b.

Location almanac

The short answer

92555 averages 531 chill hours per winter (276–966 across 10 years) in USDA zone 9b.

92555 climate
Average chill hours	531 (276–966 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically February 2 – February 24

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 92555’s chill hours and zone:

Chill and zone requirements are comfortably met in 92555.

Show 48 more good fit varieties

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

Show 9 more marginal varieties

How many chill hours does 92555 get?: 92555 averages 531 chill hours per winter, ranging from 276 to 966 across the last 10 years.
What hardiness zone is 92555?: 92555 is in USDA hardiness zone 9b.

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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