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Chill hours in T0E

The short answer

T0E averages 1,118 chill hours per winter (8721,450 across 10 years) in USDA zone 4a.
T0E climate
Average chill hours1,118 (872–1,450 across 10 winters)
USDA hardiness zone4a (NRCan zone 2b)
Last spring frosttypically May 20 – June 18
First fall frosttypically September 12 – October 7

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 T0E’s chill hours and zone:

How many chill hours does T0E get?
T0E averages 1118 chill hours per winter, ranging from 872 to 1450 across the last 10 years.
What hardiness zone is T0E?
T0E 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