How many chill hours does 86540 get?

86540 averages 1718 chill hours per winter, ranging from 1446 to 1890 across the last 10 years.

What hardiness zone is 86540?

86540 is in USDA hardiness zone 6b.

Location almanac

The short answer

86540 averages 1,718 chill hours per winter (1,446–1,890 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 86540’s chill hours and zone:

Chill and zone requirements are comfortably met in 86540.

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How many chill hours does 86540 get?: 86540 averages 1718 chill hours per winter, ranging from 1446 to 1890 across the last 10 years.
What hardiness zone is 86540?: 86540 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