How many chill hours does 56575 get?

56575 averages 948 chill hours per winter, ranging from 674 to 1214 across the last 10 years.

What hardiness zone is 56575?

56575 is in USDA hardiness zone 3b.

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The short answer

56575 averages 948 chill hours per winter (674–1,214 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 56575’s chill hours and zone:

Chill and zone requirements are comfortably met in 56575.

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How many chill hours does 56575 get?: 56575 averages 948 chill hours per winter, ranging from 674 to 1214 across the last 10 years.
What hardiness zone is 56575?: 56575 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