How many chill hours does 55763 get?

55763 averages 990 chill hours per winter, ranging from 682 to 1355 across the last 10 years.

What hardiness zone is 55763?

55763 is in USDA hardiness zone 3b.

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The short answer

55763 averages 990 chill hours per winter (682–1,355 across 10 years) in USDA zone 3b.

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 55763’s chill hours and zone:

Chill and zone requirements are comfortably met in 55763.

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How many chill hours does 55763 get?: 55763 averages 990 chill hours per winter, ranging from 682 to 1355 across the last 10 years.
What hardiness zone is 55763?: 55763 is in USDA hardiness zone 3b.

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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