Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in 57197

The short answer

57197 averages 1,208 chill hours per winter (8161,350 across 10 years) in USDA zone 4b.
57197 climate
Average chill hours1,208 (816–1,350 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 22 – April 28
First fall frosttypically October 11 – 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 57197’s chill hours and zone:

How many chill hours does 57197 get?
57197 averages 1208 chill hours per winter, ranging from 816 to 1350 across the last 10 years.
What hardiness zone is 57197?
57197 is in USDA hardiness zone 4b.

Growing fruit trees in 57197? 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