How many chill hours does 90404 get?

90404 averages 282 chill hours per winter, ranging from 123 to 524 across the last 10 years.

What hardiness zone is 90404?

90404 is in USDA hardiness zone 11a.

Location almanac

The short answer

90404 averages 282 chill hours per winter (123–524 across 10 years) in USDA zone 11a.

90404 climate
Average chill hours	282 (123–524 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 90404’s chill hours and zone:

Chill and zone requirements are comfortably met in 90404.

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

How many chill hours does 90404 get?: 90404 averages 282 chill hours per winter, ranging from 123 to 524 across the last 10 years.
What hardiness zone is 90404?: 90404 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