How many chill hours does 56566 get?

56566 averages 949 chill hours per winter, ranging from 670 to 1207 across the last 10 years.

What hardiness zone is 56566?

56566 is in USDA hardiness zone 3b.

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The short answer

56566 averages 949 chill hours per winter (670–1,207 across 10 years) in USDA zone 3b.

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 56566’s chill hours and zone:

Chill and zone requirements are comfortably met in 56566.

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How many chill hours does 56566 get?: 56566 averages 949 chill hours per winter, ranging from 670 to 1207 across the last 10 years.
What hardiness zone is 56566?: 56566 is in USDA hardiness zone 3b.

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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