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Chill hours in T2V

The short answer

T2V averages 1,373 chill hours per winter (1,0051,660 across 10 years) in USDA zone 4a.
T2V climate
Average chill hours1,373 (1,005–1,660 across 10 winters)
USDA hardiness zone4a (NRCan zone 4a)
Last spring frosttypically May 2 – May 22
First fall frosttypically September 13 – October 6

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 T2V’s chill hours and zone:

How many chill hours does T2V get?
T2V averages 1373 chill hours per winter, ranging from 1005 to 1660 across the last 10 years.
What hardiness zone is T2V?
T2V 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