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Chill hours in N4B

The short answer

N4B averages 1,593 chill hours per winter (1,2841,846 across 10 years) in USDA zone 6a.
N4B climate
Average chill hours1,593 (1,284–1,846 across 10 winters)
USDA hardiness zone6a (NRCan zone 6b)
Last spring frosttypically April 25 – May 9
First fall frosttypically October 28 – November 21

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 N4B’s chill hours and zone:

Good fit (156)

Chill and zone requirements are comfortably met in N4B.

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 126 more good fit varieties
How many chill hours does N4B get?
N4B averages 1593 chill hours per winter, ranging from 1284 to 1846 across the last 10 years.
What hardiness zone is N4B?
N4B is in USDA hardiness zone 6a.

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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