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Chill hours in 56093

The short answer

56093 averages 1,170 chill hours per winter (9371,423 across 10 years) in USDA zone 4b.
56093 climate
Average chill hours1,170 (937–1,423 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 25 – 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 56093’s chill hours and zone:

How many chill hours does 56093 get?
56093 averages 1170 chill hours per winter, ranging from 937 to 1423 across the last 10 years.
What hardiness zone is 56093?
56093 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