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Chill hours in 56652

The short answer

56652 averages 962 chill hours per winter (7041,216 across 10 years) in USDA zone 3b.
56652 climate
Average chill hours962 (704–1,216 across 10 winters)
USDA hardiness zone3b
Last spring frosttypically April 25 – May 13
First fall frosttypically October 10 – October 22

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 56652’s chill hours and zone:

How many chill hours does 56652 get?
56652 averages 962 chill hours per winter, ranging from 704 to 1216 across the last 10 years.
What hardiness zone is 56652?
56652 is in USDA hardiness zone 3b.

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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