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Chill hours in 56472

The short answer

56472 averages 1,033 chill hours per winter (7361,388 across 10 years) in USDA zone 4a.
56472 climate
Average chill hours1,033 (736–1,388 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 21 – May 10
First fall frosttypically October 14 – 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 56472’s chill hours and zone:

How many chill hours does 56472 get?
56472 averages 1033 chill hours per winter, ranging from 736 to 1388 across the last 10 years.
What hardiness zone is 56472?
56472 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