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Chill hours in G3K

The short answer

G3K averages 1,094 chill hours per winter (8171,489 across 10 years) in USDA zone 5a.
G3K climate
Average chill hours1,094 (817–1,489 across 10 winters)
USDA hardiness zone5a (NRCan zone 4b)
Last spring frosttypically April 28 – May 18
First fall frosttypically October 18 – November 1

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 G3K’s chill hours and zone:

Good fit (152)

Chill and zone requirements are comfortably met in G3K.

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 G3K get?
G3K averages 1094 chill hours per winter, ranging from 817 to 1489 across the last 10 years.
What hardiness zone is G3K?
G3K is in USDA hardiness zone 5a.

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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