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Chill hours in P4P

The short answer

P4P averages 1,003 chill hours per winter (7421,249 across 10 years) in USDA zone 3b.
P4P climate
Average chill hours1,003 (742–1,249 across 10 winters)
USDA hardiness zone3b (NRCan zone 2b)
Last spring frosttypically May 11 – May 28
First fall frosttypically October 1 – October 17

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 P4P’s chill hours and zone:

How many chill hours does P4P get?
P4P averages 1003 chill hours per winter, ranging from 742 to 1249 across the last 10 years.
What hardiness zone is P4P?
P4P is in USDA hardiness zone 3b.

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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