How many chill hours does 57631 get?

57631 averages 1187 chill hours per winter, ranging from 669 to 1522 across the last 10 years.

What hardiness zone is 57631?

57631 is in USDA hardiness zone 4b.

Location almanac

The short answer

57631 averages 1,187 chill hours per winter (669–1,522 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 57631’s chill hours and zone:

Chill and zone requirements are comfortably met in 57631.

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How many chill hours does 57631 get?: 57631 averages 1187 chill hours per winter, ranging from 669 to 1522 across the last 10 years.
What hardiness zone is 57631?: 57631 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