How many chill hours does 55991 get?

55991 averages 1257 chill hours per winter, ranging from 1076 to 1502 across the last 10 years.

What hardiness zone is 55991?

55991 is in USDA hardiness zone 4b.

Location almanac

The short answer

55991 averages 1,257 chill hours per winter (1,076–1,502 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 55991’s chill hours and zone:

Chill and zone requirements are comfortably met in 55991.

Show 90 more good fit varieties

How many chill hours does 55991 get?: 55991 averages 1257 chill hours per winter, ranging from 1076 to 1502 across the last 10 years.
What hardiness zone is 55991?: 55991 is in USDA hardiness zone 4b.

Growing fruit trees in 55991? Get a care calendar anchored to this exact climate, with email reminders.

[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