How many chill hours does 58838 get?

58838 averages 1204 chill hours per winter, ranging from 696 to 1371 across the last 10 years.

What hardiness zone is 58838?

58838 is in USDA hardiness zone 4a.

Location almanac

The short answer

58838 averages 1,204 chill hours per winter (696–1,371 across 10 years) in USDA zone 4a.

58838 climate
Average chill hours	1,204 (696–1,371 across 10 winters)
USDA hardiness zone	4a
Last spring frost	typically April 22 – 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 58838’s chill hours and zone:

Chill and zone requirements are comfortably met in 58838.

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How many chill hours does 58838 get?: 58838 averages 1204 chill hours per winter, ranging from 696 to 1371 across the last 10 years.
What hardiness zone is 58838?: 58838 is in USDA hardiness zone 4a.

Growing fruit trees in 58838? Get a care calendar anchored to this exact climate, with email reminders.

[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