How many chill hours does 93203 get?

93203 averages 618 chill hours per winter, ranging from 382 to 982 across the last 10 years.

What hardiness zone is 93203?

93203 is in USDA hardiness zone 9b.

Location almanac

The short answer

93203 averages 618 chill hours per winter (382–982 across 10 years) in USDA zone 9b.

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 93203’s chill hours and zone:

Chill and zone requirements are comfortably met in 93203.

Show 54 more good fit varieties

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

Show 3 more marginal varieties

How many chill hours does 93203 get?: 93203 averages 618 chill hours per winter, ranging from 382 to 982 across the last 10 years.
What hardiness zone is 93203?: 93203 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