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Chill hours in 56710

The short answer

56710 averages 954 chill hours per winter (5981,295 across 10 years) in USDA zone 4a.
56710 climate
Average chill hours954 (598–1,295 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 30 – May 19
First fall frosttypically October 7 – October 16

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 56710’s chill hours and zone:

Marginal (1)

Possible in a good year or a favorable microclimate — click through for the caveats.

Marginal varieties for this location
VarietyFruit
ReliancePeach
How many chill hours does 56710 get?
56710 averages 954 chill hours per winter, ranging from 598 to 1295 across the last 10 years.
What hardiness zone is 56710?
56710 is in USDA hardiness zone 4a.

Growing fruit trees in 56710? 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