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Chill hours in K2T

The short answer

K2T averages 1,308 chill hours per winter (1,0271,675 across 10 years) in USDA zone 4b.
K2T climate
Average chill hours1,308 (1,027–1,675 across 10 winters)
USDA hardiness zone4b (NRCan zone 5b)
Last spring frosttypically April 27 – May 10
First fall frosttypically October 18 – November 4

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 K2T’s chill hours and zone:

How many chill hours does K2T get?
K2T averages 1308 chill hours per winter, ranging from 1027 to 1675 across the last 10 years.
What hardiness zone is K2T?
K2T is in USDA hardiness zone 4b.

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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