How many chill hours does 58018 get?

58018 averages 1051 chill hours per winter, ranging from 647 to 1363 across the last 10 years.

What hardiness zone is 58018?

58018 is in USDA hardiness zone 4a.

Location almanac

The short answer

58018 averages 1,051 chill hours per winter (647–1,363 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 58018’s chill hours and zone:

Chill and zone requirements are comfortably met in 58018.

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How many chill hours does 58018 get?: 58018 averages 1051 chill hours per winter, ranging from 647 to 1363 across the last 10 years.
What hardiness zone is 58018?: 58018 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