How many chill hours does 57620 get?

57620 averages 1283 chill hours per winter, ranging from 919 to 1470 across the last 10 years.

What hardiness zone is 57620?

57620 is in USDA hardiness zone 4b.

Location almanac

The short answer

57620 averages 1,283 chill hours per winter (919–1,470 across 10 years) in USDA zone 4b.

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 57620’s chill hours and zone:

Chill and zone requirements are comfortably met in 57620.

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How many chill hours does 57620 get?: 57620 averages 1283 chill hours per winter, ranging from 919 to 1470 across the last 10 years.
What hardiness zone is 57620?: 57620 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