How many chill hours does 97840 get?

97840 averages 2212 chill hours per winter, ranging from 1487 to 2756 across the last 10 years.

What hardiness zone is 97840?

97840 is in USDA hardiness zone 7a.

Location almanac

The short answer

97840 averages 2,212 chill hours per winter (1,487–2,756 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 97840’s chill hours and zone:

Chill and zone requirements are comfortably met in 97840.

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How many chill hours does 97840 get?: 97840 averages 2212 chill hours per winter, ranging from 1487 to 2756 across the last 10 years.
What hardiness zone is 97840?: 97840 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