How many chill hours does 51239 get?

51239 averages 1238 chill hours per winter, ranging from 898 to 1439 across the last 10 years.

What hardiness zone is 51239?

51239 is in USDA hardiness zone 5a.

Location almanac

The short answer

51239 averages 1,238 chill hours per winter (898–1,439 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 51239’s chill hours and zone:

Chill and zone requirements are comfortably met in 51239.

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How many chill hours does 51239 get?: 51239 averages 1238 chill hours per winter, ranging from 898 to 1439 across the last 10 years.
What hardiness zone is 51239?: 51239 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