Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in J9X

The short answer

J9X averages 985 chill hours per winter (7381,158 across 10 years) in USDA zone 4a.
J9X climate
Average chill hours985 (738–1,158 across 10 winters)
USDA hardiness zone4a (NRCan zone 3a)
Last spring frosttypically May 17 – May 31
First fall frosttypically October 10 – October 23

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 J9X’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 J9X get?
J9X averages 985 chill hours per winter, ranging from 738 to 1158 across the last 10 years.
What hardiness zone is J9X?
J9X is in USDA hardiness zone 4a.

Growing fruit trees in J9X? Get a care calendar anchored to this exact climate, with email reminders.

Start My Orchard

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