How many chill hours does 90254 get?

90254 averages 170 chill hours per winter, ranging from 65 to 332 across the last 10 years.

What hardiness zone is 90254?

90254 is in USDA hardiness zone 11a.

Location almanac

The short answer

90254 averages 170 chill hours per winter (65–332 across 10 years) in USDA zone 11a.

90254 climate
Average chill hours	170 (65–332 across 10 winters)
USDA hardiness zone	11a

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 90254’s chill hours and zone:

Chill and zone requirements are comfortably met in 90254.

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

How many chill hours does 90254 get?: 90254 averages 170 chill hours per winter, ranging from 65 to 332 across the last 10 years.
What hardiness zone is 90254?: 90254 is in USDA hardiness zone 11a.

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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