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Chill hours in 56216

The short answer

56216 averages 1,084 chill hours per winter (7271,330 across 10 years) in USDA zone 4b.
56216 climate
Average chill hours1,084 (727–1,330 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 22 – May 10
First fall frosttypically October 14 – 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 56216’s chill hours and zone:

How many chill hours does 56216 get?
56216 averages 1084 chill hours per winter, ranging from 727 to 1330 across the last 10 years.
What hardiness zone is 56216?
56216 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