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Chill hours in V1G

The short answer

V1G averages 1,303 chill hours per winter (8981,640 across 10 years) in USDA zone 3a.
V1G climate
Average chill hours1,303 (898–1,640 across 10 winters)
USDA hardiness zone3a (NRCan zone 3a)
Last spring frosttypically May 1 – June 6
First fall frosttypically September 5 – October 13

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 V1G’s chill hours and zone:

How many chill hours does V1G get?
V1G averages 1303 chill hours per winter, ranging from 898 to 1640 across the last 10 years.
What hardiness zone is V1G?
V1G is in USDA hardiness zone 3a.

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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