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Chill hours in 56662

The short answer

56662 averages 1,022 chill hours per winter (7691,345 across 10 years) in USDA zone 4a.
56662 climate
Average chill hours1,022 (769–1,345 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 25 – May 11
First fall frosttypically October 16 – November 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 56662’s chill hours and zone:

How many chill hours does 56662 get?
56662 averages 1022 chill hours per winter, ranging from 769 to 1345 across the last 10 years.
What hardiness zone is 56662?
56662 is in USDA hardiness zone 4a.

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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