How many chill hours does 58428 get?

58428 averages 1032 chill hours per winter, ranging from 500 to 1281 across the last 10 years.

What hardiness zone is 58428?

58428 is in USDA hardiness zone 4a.

Location almanac

The short answer

58428 averages 1,032 chill hours per winter (500–1,281 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 58428’s chill hours and zone:

Chill and zone requirements are comfortably met in 58428.

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How many chill hours does 58428 get?: 58428 averages 1032 chill hours per winter, ranging from 500 to 1281 across the last 10 years.
What hardiness zone is 58428?: 58428 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