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Chill hours in 56369

The short answer

56369 averages 1,111 chill hours per winter (8271,441 across 10 years) in USDA zone 4b.
56369 climate
Average chill hours1,111 (827–1,441 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 22 – 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 56369’s chill hours and zone:

How many chill hours does 56369 get?
56369 averages 1111 chill hours per winter, ranging from 827 to 1441 across the last 10 years.
What hardiness zone is 56369?
56369 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