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Chill hours in 57065

The short answer

57065 averages 1,151 chill hours per winter (7561,286 across 10 years) in USDA zone 4b.
57065 climate
Average chill hours1,151 (756–1,286 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 22 – May 10
First fall frosttypically October 8 – November 7

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 57065’s chill hours and zone:

How many chill hours does 57065 get?
57065 averages 1151 chill hours per winter, ranging from 756 to 1286 across the last 10 years.
What hardiness zone is 57065?
57065 is in USDA hardiness zone 4b.

Growing fruit trees in 57065? Get a care calendar anchored to this exact climate, with email reminders.

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Sources

  1. [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
  2. [2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026