How many chill hours does 56431 get?

56431 averages 1043 chill hours per winter, ranging from 803 to 1401 across the last 10 years.

What hardiness zone is 56431?

56431 is in USDA hardiness zone 4a.

Location almanac

The short answer

56431 averages 1,043 chill hours per winter (803–1,401 across 10 years) in USDA zone 4a.

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 56431’s chill hours and zone:

Chill and zone requirements are comfortably met in 56431.

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How many chill hours does 56431 get?: 56431 averages 1043 chill hours per winter, ranging from 803 to 1401 across the last 10 years.
What hardiness zone is 56431?: 56431 is in USDA hardiness zone 4a.

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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