How many chill hours does 58103 get?

58103 averages 1036 chill hours per winter, ranging from 669 to 1305 across the last 10 years.

What hardiness zone is 58103?

58103 is in USDA hardiness zone 4a.

Location almanac

The short answer

58103 averages 1,036 chill hours per winter (669–1,305 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 58103’s chill hours and zone:

Chill and zone requirements are comfortably met in 58103.

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How many chill hours does 58103 get?: 58103 averages 1036 chill hours per winter, ranging from 669 to 1305 across the last 10 years.
What hardiness zone is 58103?: 58103 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