Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in 56678

The short answer

56678 averages 974 chill hours per winter (7301,250 across 10 years) in USDA zone 3b.
56678 climate
Average chill hours974 (730–1,250 across 10 winters)
USDA hardiness zone3b
Last spring frosttypically April 26 – May 13
First fall frosttypically October 12 – 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 56678’s chill hours and zone:

How many chill hours does 56678 get?
56678 averages 974 chill hours per winter, ranging from 730 to 1250 across the last 10 years.
What hardiness zone is 56678?
56678 is in USDA hardiness zone 3b.

Growing fruit trees in 56678? 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