How many chill hours does 51544 get?

51544 averages 1372 chill hours per winter, ranging from 1149 to 1632 across the last 10 years.

What hardiness zone is 51544?

51544 is in USDA hardiness zone 5b.

Location almanac

The short answer

51544 averages 1,372 chill hours per winter (1,149–1,632 across 10 years) in USDA zone 5b.

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 51544’s chill hours and zone:

Chill and zone requirements are comfortably met in 51544.

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How many chill hours does 51544 get?: 51544 averages 1372 chill hours per winter, ranging from 1149 to 1632 across the last 10 years.
What hardiness zone is 51544?: 51544 is in USDA hardiness zone 5b.

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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