How many chill hours does 15681 get?

15681 averages 1582 chill hours per winter, ranging from 1321 to 1875 across the last 10 years.

What hardiness zone is 15681?

15681 is in USDA hardiness zone 6b.

Location almanac

The short answer

15681 averages 1,582 chill hours per winter (1,321–1,875 across 10 years) in USDA zone 6b.

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 15681’s chill hours and zone:

Chill and zone requirements are comfortably met in 15681.

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How many chill hours does 15681 get?: 15681 averages 1582 chill hours per winter, ranging from 1321 to 1875 across the last 10 years.
What hardiness zone is 15681?: 15681 is in USDA hardiness zone 6b.

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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