Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in T4E

The short answer

T4E averages 1,206 chill hours per winter (8241,420 across 10 years) in USDA zone 3b.
T4E climate
Average chill hours1,206 (824–1,420 across 10 winters)
USDA hardiness zone3b (NRCan zone 3b)
Last spring frosttypically April 29 – May 21
First fall frosttypically September 28 – October 14

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 T4E’s chill hours and zone:

How many chill hours does T4E get?
T4E averages 1206 chill hours per winter, ranging from 824 to 1420 across the last 10 years.
What hardiness zone is T4E?
T4E is in USDA hardiness zone 3b.

Growing fruit trees in T4E? 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