Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in T0K

The short answer

T0K averages 1,582 chill hours per winter (1,1941,841 across 10 years) in USDA zone 4a.
T0K climate
Average chill hours1,582 (1,194–1,841 across 10 winters)
USDA hardiness zone4a (NRCan zone 4a)
Last spring frosttypically April 26 – May 21
First fall frosttypically September 28 – October 24

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 T0K’s chill hours and zone:

How many chill hours does T0K get?
T0K averages 1582 chill hours per winter, ranging from 1194 to 1841 across the last 10 years.
What hardiness zone is T0K?
T0K is in USDA hardiness zone 4a.

Growing fruit trees in T0K? 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