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Chill hours in A2A

The short answer

A2A averages 1,443 chill hours per winter (1,2711,554 across 10 years) in USDA zone 6a.
A2A climate
Average chill hours1,443 (1,271–1,554 across 10 winters)
USDA hardiness zone6a (NRCan zone 4a)
Last spring frosttypically May 5 – June 3
First fall frosttypically October 20 – 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 A2A’s chill hours and zone:

Good fit (156)

Chill and zone requirements are comfortably met in A2A.

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 A2A get?
A2A averages 1443 chill hours per winter, ranging from 1271 to 1554 across the last 10 years.
What hardiness zone is A2A?
A2A 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