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Chill hours in 56052

The short answer

56052 averages 1,182 chill hours per winter (9571,456 across 10 years) in USDA zone 4b.
56052 climate
Average chill hours1,182 (957–1,456 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 21 – April 28
First fall frosttypically October 17 – 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 56052’s chill hours and zone:

How many chill hours does 56052 get?
56052 averages 1182 chill hours per winter, ranging from 957 to 1456 across the last 10 years.
What hardiness zone is 56052?
56052 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