How many chill hours does 58703 get?

58703 averages 1079 chill hours per winter, ranging from 631 to 1327 across the last 10 years.

What hardiness zone is 58703?

58703 is in USDA hardiness zone 4a.

Location almanac

The short answer

58703 averages 1,079 chill hours per winter (631–1,327 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 58703’s chill hours and zone:

Chill and zone requirements are comfortably met in 58703.

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How many chill hours does 58703 get?: 58703 averages 1079 chill hours per winter, ranging from 631 to 1327 across the last 10 years.
What hardiness zone is 58703?: 58703 is in USDA hardiness zone 4a.

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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