Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in 56533

The short answer

56533 averages 1,014 chill hours per winter (6681,299 across 10 years) in USDA zone 4a.
56533 climate
Average chill hours1,014 (668–1,299 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 25 – May 13
First fall frosttypically October 10 – 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 56533’s chill hours and zone:

How many chill hours does 56533 get?
56533 averages 1014 chill hours per winter, ranging from 668 to 1299 across the last 10 years.
What hardiness zone is 56533?
56533 is in USDA hardiness zone 4a.

Growing fruit trees in 56533? 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