How many chill hours does 54521 get?

54521 averages 1072 chill hours per winter, ranging from 773 to 1463 across the last 10 years.

What hardiness zone is 54521?

54521 is in USDA hardiness zone 4b.

Location almanac

The short answer

54521 averages 1,072 chill hours per winter (773–1,463 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 54521’s chill hours and zone:

Chill and zone requirements are comfortably met in 54521.

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How many chill hours does 54521 get?: 54521 averages 1072 chill hours per winter, ranging from 773 to 1463 across the last 10 years.
What hardiness zone is 54521?: 54521 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