Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in J7E

The short answer

J7E averages 1,259 chill hours per winter (1,0871,671 across 10 years) in USDA zone 4b.
J7E climate
Average chill hours1,259 (1,087–1,671 across 10 winters)
USDA hardiness zone4b (NRCan zone 5b)
Last spring frosttypically April 25 – May 9
First fall frosttypically October 18 – November 3

Computed from 10 winters of ERA5 hourly temperature (Open-Meteo, 2015–2025); zones from USDA PHZM 2023 / NRCan 1981–2010. Data updated July 3, 2026. See methodology.

Every variety in our database, checked against J7E’s chill hours and zone:

How many chill hours does J7E get?
J7E averages 1259 chill hours per winter, ranging from 1087 to 1671 across the last 10 years.
What hardiness zone is J7E?
J7E is in USDA hardiness zone 4b.

Growing fruit trees in J7E? 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] Natural Resources Canada. Plant Hardiness Zones of Canada — accessed July 2026