How many chill hours does 55797 get?

55797 averages 1114 chill hours per winter, ranging from 858 to 1504 across the last 10 years.

What hardiness zone is 55797?

55797 is in USDA hardiness zone 4a.

Location almanac

The short answer

55797 averages 1,114 chill hours per winter (858–1,504 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 55797’s chill hours and zone:

Chill and zone requirements are comfortably met in 55797.

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How many chill hours does 55797 get?: 55797 averages 1114 chill hours per winter, ranging from 858 to 1504 across the last 10 years.
What hardiness zone is 55797?: 55797 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