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Chill hours in T2P

The short answer

T2P averages 1,361 chill hours per winter (9991,619 across 10 years) in USDA zone 4a.
T2P climate
Average chill hours1,361 (999–1,619 across 10 winters)
USDA hardiness zone4a (NRCan zone 3b)
Last spring frosttypically April 29 – May 22
First fall frosttypically September 24 – 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 T2P’s chill hours and zone:

How many chill hours does T2P get?
T2P averages 1361 chill hours per winter, ranging from 999 to 1619 across the last 10 years.
What hardiness zone is T2P?
T2P is in USDA hardiness zone 4a.

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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