Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in 56670

The short answer

56670 averages 974 chill hours per winter (7041,219 across 10 years) in USDA zone 3b.
56670 climate
Average chill hours974 (704–1,219 across 10 winters)
USDA hardiness zone3b
Last spring frosttypically April 25 – May 13
First fall frosttypically October 16 – October 27

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 56670’s chill hours and zone:

How many chill hours does 56670 get?
56670 averages 974 chill hours per winter, ranging from 704 to 1219 across the last 10 years.
What hardiness zone is 56670?
56670 is in USDA hardiness zone 3b.

Growing fruit trees in 56670? 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