How many chill hours does 57270 get?

57270 averages 1100 chill hours per winter, ranging from 636 to 1375 across the last 10 years.

What hardiness zone is 57270?

57270 is in USDA hardiness zone 4b.

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The short answer

57270 averages 1,100 chill hours per winter (636–1,375 across 10 years) in USDA zone 4b.

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 57270’s chill hours and zone:

Chill and zone requirements are comfortably met in 57270.

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How many chill hours does 57270 get?: 57270 averages 1100 chill hours per winter, ranging from 636 to 1375 across the last 10 years.
What hardiness zone is 57270?: 57270 is in USDA hardiness zone 4b.

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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