How many chill hours does 55325 get?

55325 averages 1103 chill hours per winter, ranging from 750 to 1399 across the last 10 years.

What hardiness zone is 55325?

55325 is in USDA hardiness zone 4b.

Location almanac

The short answer

55325 averages 1,103 chill hours per winter (750–1,399 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 55325’s chill hours and zone:

Chill and zone requirements are comfortably met in 55325.

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How many chill hours does 55325 get?: 55325 averages 1103 chill hours per winter, ranging from 750 to 1399 across the last 10 years.
What hardiness zone is 55325?: 55325 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