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Chill hours in 56330

The short answer

56330 averages 1,119 chill hours per winter (8931,463 across 10 years) in USDA zone 4a.
56330 climate
Average chill hours1,119 (893–1,463 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 23 – April 28
First fall frosttypically October 11 – 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 56330’s chill hours and zone:

How many chill hours does 56330 get?
56330 averages 1119 chill hours per winter, ranging from 893 to 1463 across the last 10 years.
What hardiness zone is 56330?
56330 is in USDA hardiness zone 4a.

Growing fruit trees in 56330? Get a care calendar anchored to this exact climate, with email reminders.

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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