How many chill hours does 55721 get?

55721 averages 995 chill hours per winter, ranging from 748 to 1278 across the last 10 years.

What hardiness zone is 55721?

55721 is in USDA hardiness zone 4a.

Location almanac

The short answer

55721 averages 995 chill hours per winter (748–1,278 across 10 years) in USDA zone 4a.

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 55721’s chill hours and zone:

Chill and zone requirements are comfortably met in 55721.

Show 89 more good fit varieties

Possible in a good year or a favorable microclimate — click through for the caveats.

Marginal varieties for this location
Variety	Fruit
Reliance	Peach

How many chill hours does 55721 get?: 55721 averages 995 chill hours per winter, ranging from 748 to 1278 across the last 10 years.
What hardiness zone is 55721?: 55721 is in USDA hardiness zone 4a.

Growing fruit trees in 55721? 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