How many chill hours does 92304 get?

92304 averages 235 chill hours per winter, ranging from 103 to 607 across the last 10 years.

What hardiness zone is 92304?

92304 is in USDA hardiness zone 9b.

Location almanac

The short answer

92304 averages 235 chill hours per winter (103–607 across 10 years) in USDA zone 9b.

92304 climate
Average chill hours	235 (103–607 across 10 winters)
USDA hardiness 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 92304’s chill hours and zone:

Chill and zone requirements are comfortably met in 92304.

Show 4 more good fit varieties

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

Show 20 more marginal varieties

How many chill hours does 92304 get?: 92304 averages 235 chill hours per winter, ranging from 103 to 607 across the last 10 years.
What hardiness zone is 92304?: 92304 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