How many chill hours does 97830 get?

97830 averages 2018 chill hours per winter, ranging from 1533 to 2307 across the last 10 years.

What hardiness zone is 97830?

97830 is in USDA hardiness zone 7a.

Location almanac

The short answer

97830 averages 2,018 chill hours per winter (1,533–2,307 across 10 years) in USDA zone 7a.

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 97830’s chill hours and zone:

Chill and zone requirements are comfortably met in 97830.

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How many chill hours does 97830 get?: 97830 averages 2018 chill hours per winter, ranging from 1533 to 2307 across the last 10 years.
What hardiness zone is 97830?: 97830 is in USDA hardiness zone 7a.

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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