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Chill hours in 56136

The short answer

56136 averages 1,108 chill hours per winter (6881,345 across 10 years) in USDA zone 4b.
56136 climate
Average chill hours1,108 (688–1,345 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 21 – May 10
First fall frosttypically October 11 – November 7

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 56136’s chill hours and zone:

How many chill hours does 56136 get?
56136 averages 1108 chill hours per winter, ranging from 688 to 1345 across the last 10 years.
What hardiness zone is 56136?
56136 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