How many chill hours does 55339 get?

55339 averages 1148 chill hours per winter, ranging from 931 to 1428 across the last 10 years.

What hardiness zone is 55339?

55339 is in USDA hardiness zone 4b.

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The short answer

55339 averages 1,148 chill hours per winter (931–1,428 across 10 years) in USDA zone 4b.

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 55339’s chill hours and zone:

Chill and zone requirements are comfortably met in 55339.

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How many chill hours does 55339 get?: 55339 averages 1148 chill hours per winter, ranging from 931 to 1428 across the last 10 years.
What hardiness zone is 55339?: 55339 is in USDA hardiness zone 4b.

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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