Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in T3P

The short answer

T3P averages 1,430 chill hours per winter (1,0031,714 across 10 years) in USDA zone 4a.
T3P climate
Average chill hours1,430 (1,003–1,714 across 10 winters)
USDA hardiness zone4a (NRCan zone 4a)
Last spring frosttypically April 26 – May 21
First fall frosttypically September 13 – October 7

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 T3P’s chill hours and zone:

How many chill hours does T3P get?
T3P averages 1430 chill hours per winter, ranging from 1003 to 1714 across the last 10 years.
What hardiness zone is T3P?
T3P is in USDA hardiness zone 4a.

Growing fruit trees in T3P? 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