How many chill hours does 21560 get?

21560 averages 1690 chill hours per winter, ranging from 1405 to 1880 across the last 10 years.

What hardiness zone is 21560?

21560 is in USDA hardiness zone 7a.

Location almanac

The short answer

21560 averages 1,690 chill hours per winter (1,405–1,880 across 10 years) in USDA zone 7a.

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 21560’s chill hours and zone:

Chill and zone requirements are comfortably met in 21560.

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How many chill hours does 21560 get?: 21560 averages 1690 chill hours per winter, ranging from 1405 to 1880 across the last 10 years.
What hardiness zone is 21560?: 21560 is in USDA hardiness zone 7a.

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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