How many chill hours does 51546 get?

51546 averages 1360 chill hours per winter, ranging from 1153 to 1612 across the last 10 years.

What hardiness zone is 51546?

51546 is in USDA hardiness zone 5b.

Location almanac

The short answer

51546 averages 1,360 chill hours per winter (1,153–1,612 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 51546’s chill hours and zone:

Chill and zone requirements are comfortably met in 51546.

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How many chill hours does 51546 get?: 51546 averages 1360 chill hours per winter, ranging from 1153 to 1612 across the last 10 years.
What hardiness zone is 51546?: 51546 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