How many chill hours does 15928 get?

15928 averages 1510 chill hours per winter, ranging from 1261 to 1782 across the last 10 years.

What hardiness zone is 15928?

15928 is in USDA hardiness zone 6a.

Location almanac

The short answer

15928 averages 1,510 chill hours per winter (1,261–1,782 across 10 years) in USDA zone 6a.

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 15928’s chill hours and zone:

Chill and zone requirements are comfortably met in 15928.

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How many chill hours does 15928 get?: 15928 averages 1510 chill hours per winter, ranging from 1261 to 1782 across the last 10 years.
What hardiness zone is 15928?: 15928 is in USDA hardiness zone 6a.

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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