How many chill hours does 50551 get?

50551 averages 1308 chill hours per winter, ranging from 1144 to 1592 across the last 10 years.

What hardiness zone is 50551?

50551 is in USDA hardiness zone 5a.

Location almanac

The short answer

50551 averages 1,308 chill hours per winter (1,144–1,592 across 10 years) in USDA zone 5a.

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 50551’s chill hours and zone:

Chill and zone requirements are comfortably met in 50551.

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How many chill hours does 50551 get?: 50551 averages 1308 chill hours per winter, ranging from 1144 to 1592 across the last 10 years.
What hardiness zone is 50551?: 50551 is in USDA hardiness zone 5a.

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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