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Chill hours in 56587

The short answer

56587 averages 982 chill hours per winter (6421,279 across 10 years) in USDA zone 4a.
56587 climate
Average chill hours982 (642–1,279 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 25 – May 13
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 56587’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 56587 get?
56587 averages 982 chill hours per winter, ranging from 642 to 1279 across the last 10 years.
What hardiness zone is 56587?
56587 is in USDA hardiness zone 4a.

Growing fruit trees in 56587? 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