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Chill hours in 56332

The short answer

56332 averages 1,014 chill hours per winter (6361,337 across 10 years) in USDA zone 4b.
56332 climate
Average chill hours1,014 (636–1,337 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 25 – May 13
First fall frosttypically October 11 – November 13

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 56332’s chill hours and zone:

How many chill hours does 56332 get?
56332 averages 1014 chill hours per winter, ranging from 636 to 1337 across the last 10 years.
What hardiness zone is 56332?
56332 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