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Chill hours in E3B

The short answer

E3B averages 1,320 chill hours per winter (1,192–1,580 across 10 years) in USDA zone 5b.
E3B climate
Average chill hours1,320 (1,192–1,580 across 10 winters)
USDA hardiness zone5b (NRCan zone 5a)
Last spring frosttypically April 23 – May 11
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 E3B’s chill hours and zone:

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 E3B get?
E3B averages 1320 chill hours per winter, ranging from 1192 to 1580 across the last 10 years.
What hardiness zone is E3B?
E3B is in USDA hardiness zone 5b.

Growing fruit trees in E3B? 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