How many chill hours does 97391 get?

97391 averages 1574 chill hours per winter, ranging from 1056 to 2118 across the last 10 years.

What hardiness zone is 97391?

97391 is in USDA hardiness zone 9a.

Location almanac

The short answer

97391 averages 1,574 chill hours per winter (1,056–2,118 across 10 years) in USDA zone 9a.

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 97391’s chill hours and zone:

Chill and zone requirements are comfortably met in 97391.

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How many chill hours does 97391 get?: 97391 averages 1574 chill hours per winter, ranging from 1056 to 2118 across the last 10 years.
What hardiness zone is 97391?: 97391 is in USDA hardiness zone 9a.

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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