How many chill hours does 97478 get?

97478 averages 2227 chill hours per winter, ranging from 1989 to 2533 across the last 10 years.

What hardiness zone is 97478?

97478 is in USDA hardiness zone 8b.

Location almanac

The short answer

97478 averages 2,227 chill hours per winter (1,989–2,533 across 10 years) in USDA zone 8b.

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 97478’s chill hours and zone:

Chill and zone requirements are comfortably met in 97478.

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How many chill hours does 97478 get?: 97478 averages 2227 chill hours per winter, ranging from 1989 to 2533 across the last 10 years.
What hardiness zone is 97478?: 97478 is in USDA hardiness zone 8b.

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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