How many chill hours does 56621 get?

56621 averages 952 chill hours per winter, ranging from 692 to 1225 across the last 10 years.

What hardiness zone is 56621?

56621 is in USDA hardiness zone 3b.

Location almanac

The short answer

56621 averages 952 chill hours per winter (692–1,225 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 56621’s chill hours and zone:

Chill and zone requirements are comfortably met in 56621.

Show 41 more good fit varieties

How many chill hours does 56621 get?: 56621 averages 952 chill hours per winter, ranging from 692 to 1225 across the last 10 years.
What hardiness zone is 56621?: 56621 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