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Chill hours in T0P

The short answer

T0P averages 804 chill hours per winter (5011,083 across 10 years) in USDA zone 3a.
T0P climate
Average chill hours804 (501–1,083 across 10 winters)
USDA hardiness zone3a (NRCan zone 2a)
Last spring frosttypically May 3 – May 24
First fall frosttypically September 15 – 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 T0P’s chill hours and zone:

Marginal (1)

Possible in a good year or a favorable microclimate — click through for the caveats.

Marginal varieties for this location
VarietyFruit
CresthavenPeach
How many chill hours does T0P get?
T0P averages 804 chill hours per winter, ranging from 501 to 1083 across the last 10 years.
What hardiness zone is T0P?
T0P is in USDA hardiness zone 3a.

Growing fruit trees in T0P? Get a care calendar anchored to this exact climate, with email reminders.

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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