Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in 55026

The short answer

55026 averages 1,258 chill hours per winter (1,0661,542 across 10 years) in USDA zone 4b.
55026 climate
Average chill hours1,258 (1,066–1,542 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 13 – April 29
First fall frosttypically October 17 – November 20

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 55026’s chill hours and zone:

How many chill hours does 55026 get?
55026 averages 1258 chill hours per winter, ranging from 1066 to 1542 across the last 10 years.
What hardiness zone is 55026?
55026 is in USDA hardiness zone 4b.

Growing fruit trees in 55026? 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