Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in G6R

The short answer

G6R averages 1,217 chill hours per winter (9821,677 across 10 years) in USDA zone 4b.
G6R climate
Average chill hours1,217 (982–1,677 across 10 winters)
USDA hardiness zone4b (NRCan zone 4b)
Last spring frosttypically April 27 – May 17
First fall frosttypically October 17 – October 30

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 G6R’s chill hours and zone:

How many chill hours does G6R get?
G6R averages 1217 chill hours per winter, ranging from 982 to 1677 across the last 10 years.
What hardiness zone is G6R?
G6R is in USDA hardiness zone 4b.

Growing fruit trees in G6R? 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