How many chill hours does 57220 get?

57220 averages 1107 chill hours per winter, ranging from 693 to 1271 across the last 10 years.

What hardiness zone is 57220?

57220 is in USDA hardiness zone 4b.

Location almanac

The short answer

57220 averages 1,107 chill hours per winter (693–1,271 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 57220’s chill hours and zone:

Chill and zone requirements are comfortably met in 57220.

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How many chill hours does 57220 get?: 57220 averages 1107 chill hours per winter, ranging from 693 to 1271 across the last 10 years.
What hardiness zone is 57220?: 57220 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