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Chill hours in 57314

The short answer

57314 averages 1,192 chill hours per winter (8231,371 across 10 years) in USDA zone 4b.
57314 climate
Average chill hours1,192 (823–1,371 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 22 – May 10
First fall frosttypically October 10 – 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 57314’s chill hours and zone:

How many chill hours does 57314 get?
57314 averages 1192 chill hours per winter, ranging from 823 to 1371 across the last 10 years.
What hardiness zone is 57314?
57314 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