How many chill hours does 58634 get?

58634 averages 1202 chill hours per winter, ranging from 699 to 1349 across the last 10 years.

What hardiness zone is 58634?

58634 is in USDA hardiness zone 4a.

Location almanac

The short answer

58634 averages 1,202 chill hours per winter (699–1,349 across 10 years) in USDA zone 4a.

58634 climate
Average chill hours	1,202 (699–1,349 across 10 winters)
USDA hardiness zone	4a
Last spring frost	typically April 24 – May 19
First fall frost	typically September 28 – October 20

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 58634’s chill hours and zone:

Chill and zone requirements are comfortably met in 58634.

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How many chill hours does 58634 get?: 58634 averages 1202 chill hours per winter, ranging from 699 to 1349 across the last 10 years.
What hardiness zone is 58634?: 58634 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