How many chill hours does 57445 get?

57445 averages 1085 chill hours per winter, ranging from 638 to 1316 across the last 10 years.

What hardiness zone is 57445?

57445 is in USDA hardiness zone 4a.

Location almanac

The short answer

57445 averages 1,085 chill hours per winter (638–1,316 across 10 years) in USDA zone 4a.

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 57445’s chill hours and zone:

Chill and zone requirements are comfortably met in 57445.

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How many chill hours does 57445 get?: 57445 averages 1085 chill hours per winter, ranging from 638 to 1316 across the last 10 years.
What hardiness zone is 57445?: 57445 is in USDA hardiness zone 4a.

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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