Location almanac
Chill hours in Y0A
The short answer
Y0A averages 760 chill hours per winter (504–1,092 across 10 years) in USDA zone 3b.
Climate profile
| Average chill hours | 760 (504–1,092 across 10 winters) |
|---|---|
| USDA hardiness zone | 3b (NRCan zone 0b) |
| Last spring frost | typically May 14 – June 13 |
| First fall frost | typically September 1 – September 24 |
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.
What grows here
Every variety in our database, checked against Y0A’s chill hours and zone:
Good fit (59)
Chill and zone requirements are comfortably met in Y0A.
| Variety | Fruit |
|---|---|
| Chestnut Crab | Apple |
| Frostbite | Apple |
| Gravenstein | Apple |
| Honeygold | Apple |
| Lodi | Apple |
| Sweet Sixteen | Apple |
| TropicSweet | Apple |
| Zestar | Apple |
| Arctic Star | Nectarine |
| Double Delight | Nectarine |
| Flavortop | Nectarine |
| Independence | Nectarine |
| Panamint | Nectarine |
| Snow Queen | Nectarine |
| August Pride | Peach |
| Babcock | Peach |
| Belle of Georgia | Peach |
| Donut | Peach |
| Elberta | Peach |
| Eva's Pride | Peach |
| Flameprince | Peach |
| Flordacrest | Peach |
| Flordaprince | Peach |
| Frost | Peach |
| Gulfprince | Peach |
| Harvester | Peach |
| Junegold | Peach |
| Loring | Peach |
| Mid-Pride | Peach |
| O'Henry | Peach |
Marginal (12)
Possible in a good year or a favorable microclimate — click through for the caveats.
| Variety | Fruit |
|---|---|
| Haralson | Apple |
| Honeycrisp | Apple |
| Wealthy | Apple |
| Yellow Transparent | Apple |
| Harko | Nectarine |
| Mericrest | Nectarine |
| Cresthaven | Peach |
| D'Anjou | Pear |
| Harrow Delight | Pear |
| Blue Damson | Plum |
| French Improved Prune | Plum |
| Sunburst | Sweet Cherry |
Questions
- How many chill hours does Y0A get?
- Y0A averages 760 chill hours per winter, ranging from 504 to 1092 across the last 10 years.
- What hardiness zone is Y0A?
- Y0A is in USDA hardiness zone 3b.
Growing fruit trees in Y0A? Get a care calendar anchored to this exact climate, with email reminders.
Start My OrchardSources
- [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
- [2] Natural Resources Canada. Plant Hardiness Zones of Canada — accessed July 2026