How many chill hours does 55703 get?

55703 averages 980 chill hours per winter, ranging from 733 to 1317 across the last 10 years.

What hardiness zone is 55703?

55703 is in USDA hardiness zone 3b.

Location almanac

The short answer

55703 averages 980 chill hours per winter (733–1,317 across 10 years) in USDA zone 3b.

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 55703’s chill hours and zone:

Chill and zone requirements are comfortably met in 55703.

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How many chill hours does 55703 get?: 55703 averages 980 chill hours per winter, ranging from 733 to 1317 across the last 10 years.
What hardiness zone is 55703?: 55703 is in USDA hardiness zone 3b.

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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