Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in 56225

The short answer

56225 averages 1,116 chill hours per winter (6791,372 across 10 years) in USDA zone 4b.
56225 climate
Average chill hours1,116 (679–1,372 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 21 – May 7
First fall frosttypically October 14 – November 13

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 56225’s chill hours and zone:

How many chill hours does 56225 get?
56225 averages 1116 chill hours per winter, ranging from 679 to 1372 across the last 10 years.
What hardiness zone is 56225?
56225 is in USDA hardiness zone 4b.

Growing fruit trees in 56225? Get a care calendar anchored to this exact climate, with email reminders.

Start My Orchard

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