How many chill hours does 97918 get?

97918 averages 1790 chill hours per winter, ranging from 1120 to 2373 across the last 10 years.

What hardiness zone is 97918?

97918 is in USDA hardiness zone 7a.

Location almanac

The short answer

97918 averages 1,790 chill hours per winter (1,120–2,373 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 97918’s chill hours and zone:

Chill and zone requirements are comfortably met in 97918.

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How many chill hours does 97918 get?: 97918 averages 1790 chill hours per winter, ranging from 1120 to 2373 across the last 10 years.
What hardiness zone is 97918?: 97918 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