How many chill hours does 54721 get?

54721 averages 1259 chill hours per winter, ranging from 1082 to 1529 across the last 10 years.

What hardiness zone is 54721?

54721 is in USDA hardiness zone 4b.

Location almanac

The short answer

54721 averages 1,259 chill hours per winter (1,082–1,529 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 54721’s chill hours and zone:

Chill and zone requirements are comfortably met in 54721.

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How many chill hours does 54721 get?: 54721 averages 1259 chill hours per winter, ranging from 1082 to 1529 across the last 10 years.
What hardiness zone is 54721?: 54721 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