How many chill hours does 56273 get?

56273 averages 1105 chill hours per winter, ranging from 768 to 1412 across the last 10 years.

What hardiness zone is 56273?

56273 is in USDA hardiness zone 4b.

Location almanac

The short answer

56273 averages 1,105 chill hours per winter (768–1,412 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 56273’s chill hours and zone:

Chill and zone requirements are comfortably met in 56273.

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How many chill hours does 56273 get?: 56273 averages 1105 chill hours per winter, ranging from 768 to 1412 across the last 10 years.
What hardiness zone is 56273?: 56273 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