How many chill hours does 51445 get?

51445 averages 1322 chill hours per winter, ranging from 1168 to 1593 across the last 10 years.

What hardiness zone is 51445?

51445 is in USDA hardiness zone 5a.

Location almanac

The short answer

51445 averages 1,322 chill hours per winter (1,168–1,593 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 51445’s chill hours and zone:

Chill and zone requirements are comfortably met in 51445.

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How many chill hours does 51445 get?: 51445 averages 1322 chill hours per winter, ranging from 1168 to 1593 across the last 10 years.
What hardiness zone is 51445?: 51445 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