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Chill hours in 56125

The short answer

56125 averages 1,148 chill hours per winter (7721,330 across 10 years) in USDA zone 4b.
56125 climate
Average chill hours1,148 (772–1,330 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 21 – April 28
First fall frosttypically October 12 – 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 56125’s chill hours and zone:

How many chill hours does 56125 get?
56125 averages 1148 chill hours per winter, ranging from 772 to 1330 across the last 10 years.
What hardiness zone is 56125?
56125 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