Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in T8T

The short answer

T8T averages 1,103 chill hours per winter (7461,305 across 10 years) in USDA zone 3b.
T8T climate
Average chill hours1,103 (746–1,305 across 10 winters)
USDA hardiness zone3b (NRCan zone 4a)
Last spring frosttypically April 26 – May 21
First fall frosttypically September 28 – October 13

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 T8T’s chill hours and zone:

How many chill hours does T8T get?
T8T averages 1103 chill hours per winter, ranging from 746 to 1305 across the last 10 years.
What hardiness zone is T8T?
T8T is in USDA hardiness zone 3b.

Growing fruit trees in T8T? 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