How many chill hours does 54638 get?

54638 averages 1317 chill hours per winter, ranging from 1155 to 1597 across the last 10 years.

What hardiness zone is 54638?

54638 is in USDA hardiness zone 5a.

Location almanac

The short answer

54638 averages 1,317 chill hours per winter (1,155–1,597 across 10 years) in USDA zone 5a.

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 54638’s chill hours and zone:

Chill and zone requirements are comfortably met in 54638.

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How many chill hours does 54638 get?: 54638 averages 1317 chill hours per winter, ranging from 1155 to 1597 across the last 10 years.
What hardiness zone is 54638?: 54638 is in USDA hardiness zone 5a.

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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