How many chill hours does 55903 get?

55903 averages 1250 chill hours per winter, ranging from 1091 to 1483 across the last 10 years.

What hardiness zone is 55903?

55903 is in USDA hardiness zone 4b.

Location almanac

The short answer

55903 averages 1,250 chill hours per winter (1,091–1,483 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 55903’s chill hours and zone:

Chill and zone requirements are comfortably met in 55903.

Show 90 more good fit varieties

How many chill hours does 55903 get?: 55903 averages 1250 chill hours per winter, ranging from 1091 to 1483 across the last 10 years.
What hardiness zone is 55903?: 55903 is in USDA hardiness zone 4b.

Growing fruit trees in 55903? 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