How many chill hours does 97818 get?

97818 averages 1910 chill hours per winter, ranging from 1466 to 2222 across the last 10 years.

What hardiness zone is 97818?

97818 is in USDA hardiness zone 7b.

Location almanac

The short answer

97818 averages 1,910 chill hours per winter (1,466–2,222 across 10 years) in USDA zone 7b.

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 97818’s chill hours and zone:

Chill and zone requirements are comfortably met in 97818.

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How many chill hours does 97818 get?: 97818 averages 1910 chill hours per winter, ranging from 1466 to 2222 across the last 10 years.
What hardiness zone is 97818?: 97818 is in USDA hardiness zone 7b.

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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