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Chill hours in G5R

The short answer

G5R averages 1,100 chill hours per winter (8031,516 across 10 years) in USDA zone 5b.
G5R climate
Average chill hours1,100 (803–1,516 across 10 winters)
USDA hardiness zone5b (NRCan zone 4b)
Last spring frosttypically April 23 – May 16
First fall frosttypically October 18 – November 5

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 G5R’s chill hours and zone:

Good fit (152)

Chill and zone requirements are comfortably met in G5R.

Good fit varieties for this location
VarietyFruit
Acey MacApple
AkaneApple
AnnaApple
Arkansas BlackApple
BraeburnApple
CameoApple
CandyCrispApple
CortlandApple
Cox's Orange PippinApple
CrimsonCrispApple
Dorsett GoldenApple
EarligoldApple
EmpireApple
FortuneApple
FujiApple
GalaApple
Ginger GoldApple
GoldRushApple
Golden DeliciousApple
Golden SupremeApple
Granny SmithApple
GravensteinApple
HoneycrispApple
IdaredApple
JonagoldApple
JonamacApple
JonathanApple
LibertyApple
LodiApple
McIntoshApple
Show 122 more good fit varieties
How many chill hours does G5R get?
G5R averages 1100 chill hours per winter, ranging from 803 to 1516 across the last 10 years.
What hardiness zone is G5R?
G5R is in USDA hardiness zone 5b.

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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