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Chill hours in S7K

The short answer

S7K averages 892 chill hours per winter (515–1,300 across 10 years) in USDA zone 3b.
S7K climate
Average chill hours892 (515–1,300 across 10 winters)
USDA hardiness zone3b (NRCan zone 3a)
Last spring frosttypically April 30 – May 21
First fall frosttypically September 22 – October 12

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 S7K’s chill hours and zone:

Good fit (16)

Chill and zone requirements are comfortably met in S7K.

Good fit varieties for this location
VarietyFruit
Chestnut CrabApple
FrostbiteApple
GravensteinApple
HaralsonApple
HoneycrispApple
HoneygoldApple
LodiApple
Sweet SixteenApple
WealthyApple
Yellow TransparentApple
ZestarApple
HarkoNectarine
Golden SpicePear
UrePear
AldermanPlum
Evans BaliTart Cherry

Marginal (16)

Possible in a good year or a favorable microclimate — click through for the caveats.

Marginal varieties for this location
VarietyFruit
TropicSweetApple
FlameprincePeach
FlordacrestPeach
GulfprincePeach
JunegoldPeach
LoringPeach
RedglobePeach
RedskinPeach
TropicBeautyPeach
UFGoldPeach
UFOnePeach
UFSunPeach
MoonglowPear
Green GagePlum
BrooksSweet Cherry
SunburstSweet Cherry
How many chill hours does S7K get?
S7K averages 892 chill hours per winter, ranging from 515 to 1300 across the last 10 years.
What hardiness zone is S7K?
S7K is in USDA hardiness zone 3b.

Growing fruit trees in S7K? Save your first tree free and see this month’s care tasks for this climate.

Save your first tree free

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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