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Chill hours in T6G

The short answer

T6G averages 1,108 chill hours per winter (7441,324 across 10 years) in USDA zone 3b.
T6G climate
Average chill hours1,108 (744–1,324 across 10 winters)
USDA hardiness zone3b (NRCan zone 4a)
Last spring frosttypically April 26 – May 21
First fall frosttypically September 28 – October 22

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 T6G’s chill hours and zone:

How many chill hours does T6G get?
T6G averages 1108 chill hours per winter, ranging from 744 to 1324 across the last 10 years.
What hardiness zone is T6G?
T6G is in USDA hardiness zone 3b.

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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