How many chill hours does 57745 get?

57745 averages 1235 chill hours per winter, ranging from 942 to 1410 across the last 10 years.

What hardiness zone is 57745?

57745 is in USDA hardiness zone 4b.

Location almanac

The short answer

57745 averages 1,235 chill hours per winter (942–1,410 across 10 years) in USDA zone 4b.

57745 climate
Average chill hours	1,235 (942–1,410 across 10 winters)
USDA hardiness zone	4b
Last spring frost	typically May 12 – May 25
First fall frost	typically September 10 – October 19

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 57745’s chill hours and zone:

Chill and zone requirements are comfortably met in 57745.

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How many chill hours does 57745 get?: 57745 averages 1235 chill hours per winter, ranging from 942 to 1410 across the last 10 years.
What hardiness zone is 57745?: 57745 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