How many chill hours does 58856 get?

58856 averages 1082 chill hours per winter, ranging from 605 to 1317 across the last 10 years.

What hardiness zone is 58856?

58856 is in USDA hardiness zone 4a.

Location almanac

The short answer

58856 averages 1,082 chill hours per winter (605–1,317 across 10 years) in USDA zone 4a.

58856 climate
Average chill hours	1,082 (605–1,317 across 10 winters)
USDA hardiness zone	4a
Last spring frost	typically April 28 – May 14
First fall frost	typically September 28 – October 15

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 58856’s chill hours and zone:

Chill and zone requirements are comfortably met in 58856.

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How many chill hours does 58856 get?: 58856 averages 1082 chill hours per winter, ranging from 605 to 1317 across the last 10 years.
What hardiness zone is 58856?: 58856 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