How many chill hours does 94304 get?

94304 averages 528 chill hours per winter, ranging from 338 to 990 across the last 10 years.

What hardiness zone is 94304?

94304 is in USDA hardiness zone 9b.

Location almanac

The short answer

94304 averages 528 chill hours per winter (338–990 across 10 years) in USDA zone 9b.

94304 climate
Average chill hours	528 (338–990 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 94304’s chill hours and zone:

Chill and zone requirements are comfortably met in 94304.

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 94304 get?: 94304 averages 528 chill hours per winter, ranging from 338 to 990 across the last 10 years.
What hardiness zone is 94304?: 94304 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