How many chill hours does 93308 get?

93308 averages 727 chill hours per winter, ranging from 460 to 1112 across the last 10 years.

What hardiness zone is 93308?

93308 is in USDA hardiness zone 9b.

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The short answer

93308 averages 727 chill hours per winter (460–1,112 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 93308’s chill hours and zone:

Chill and zone requirements are comfortably met in 93308.

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

How many chill hours does 93308 get?: 93308 averages 727 chill hours per winter, ranging from 460 to 1112 across the last 10 years.
What hardiness zone is 93308?: 93308 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