How many chill hours does 56637 get?

56637 averages 968 chill hours per winter, ranging from 707 to 1241 across the last 10 years.

What hardiness zone is 56637?

56637 is in USDA hardiness zone 3b.

Location almanac

The short answer

56637 averages 968 chill hours per winter (707–1,241 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 56637’s chill hours and zone:

Chill and zone requirements are comfortably met in 56637.

Show 41 more good fit varieties

How many chill hours does 56637 get?: 56637 averages 968 chill hours per winter, ranging from 707 to 1241 across the last 10 years.
What hardiness zone is 56637?: 56637 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