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Chill hours in P7G

The short answer

P7G averages 914 chill hours per winter (4511,245 across 10 years) in USDA zone 4a.
P7G climate
Average chill hours914 (451–1,245 across 10 winters)
USDA hardiness zone4a (NRCan zone 2b)
Last spring frosttypically May 14 – May 22
First fall frosttypically September 29 – 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 P7G’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
ReliancePeach
How many chill hours does P7G get?
P7G averages 914 chill hours per winter, ranging from 451 to 1245 across the last 10 years.
What hardiness zone is P7G?
P7G is in USDA hardiness zone 4a.

Growing fruit trees in P7G? 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