How many chill hours does 55111 get?

55111 averages 1214 chill hours per winter, ranging from 1028 to 1473 across the last 10 years.

What hardiness zone is 55111?

55111 is in USDA hardiness zone 5a.

Location almanac

The short answer

55111 averages 1,214 chill hours per winter (1,028–1,473 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 55111’s chill hours and zone:

Chill and zone requirements are comfortably met in 55111.

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How many chill hours does 55111 get?: 55111 averages 1214 chill hours per winter, ranging from 1028 to 1473 across the last 10 years.
What hardiness zone is 55111?: 55111 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