How many chill hours does 51011 get?

51011 averages 1288 chill hours per winter, ranging from 999 to 1542 across the last 10 years.

What hardiness zone is 51011?

51011 is in USDA hardiness zone 4b.

Location almanac

The short answer

51011 averages 1,288 chill hours per winter (999–1,542 across 10 years) in USDA zone 4b.

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 51011’s chill hours and zone:

Chill and zone requirements are comfortably met in 51011.

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How many chill hours does 51011 get?: 51011 averages 1288 chill hours per winter, ranging from 999 to 1542 across the last 10 years.
What hardiness zone is 51011?: 51011 is in USDA hardiness zone 4b.

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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