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Chill hours in 57659

The short answer

57659 averages 1,167 chill hours per winter (6501,412 across 10 years) in USDA zone 4b.
57659 climate
Average chill hours1,167 (650–1,412 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 25 – May 19
First fall frosttypically October 7 – October 24

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 57659’s chill hours and zone:

How many chill hours does 57659 get?
57659 averages 1167 chill hours per winter, ranging from 650 to 1412 across the last 10 years.
What hardiness zone is 57659?
57659 is in USDA hardiness zone 4b.

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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