How many chill hours does 12978 get?

12978 averages 1289 chill hours per winter, ranging from 997 to 1767 across the last 10 years.

What hardiness zone is 12978?

12978 is in USDA hardiness zone 4b.

Location almanac

The short answer

12978 averages 1,289 chill hours per winter (997–1,767 across 10 years) in USDA zone 4b.

Computed from 10 winters of ERA5 hourly temperature (Open-Meteo, 2015–2025); zones from USDA PHZM 2023. Data updated July 3, 2026. See methodology.

Every variety in our database, checked against 12978’s chill hours and zone:

Chill and zone requirements are comfortably met in 12978.

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How many chill hours does 12978 get?: 12978 averages 1289 chill hours per winter, ranging from 997 to 1767 across the last 10 years.
What hardiness zone is 12978?: 12978 is in USDA hardiness zone 4b.

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[1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
[2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026