How many chill hours does 58651 get?

58651 averages 1273 chill hours per winter, ranging from 812 to 1463 across the last 10 years.

What hardiness zone is 58651?

58651 is in USDA hardiness zone 4b.

Location almanac

The short answer

58651 averages 1,273 chill hours per winter (812–1,463 across 10 years) in USDA zone 4b.

58651 climate
Average chill hours	1,273 (812–1,463 across 10 winters)
USDA hardiness zone	4b
Last spring frost	typically April 30 – May 19
First fall frost	typically September 28 – October 26

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 58651’s chill hours and zone:

Chill and zone requirements are comfortably met in 58651.

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How many chill hours does 58651 get?: 58651 averages 1273 chill hours per winter, ranging from 812 to 1463 across the last 10 years.
What hardiness zone is 58651?: 58651 is in USDA hardiness zone 4b.

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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