How many chill hours does 57239 get?

57239 averages 1027 chill hours per winter, ranging from 577 to 1268 across the last 10 years.

What hardiness zone is 57239?

57239 is in USDA hardiness zone 4b.

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The short answer

57239 averages 1,027 chill hours per winter (577–1,268 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 57239’s chill hours and zone:

Chill and zone requirements are comfortably met in 57239.

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How many chill hours does 57239 get?: 57239 averages 1027 chill hours per winter, ranging from 577 to 1268 across the last 10 years.
What hardiness zone is 57239?: 57239 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