How many chill hours does 66408 get?

66408 averages 1388 chill hours per winter, ranging from 1194 to 1706 across the last 10 years.

What hardiness zone is 66408?

66408 is in USDA hardiness zone 6a.

Location almanac

The short answer

66408 averages 1,388 chill hours per winter (1,194–1,706 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 66408’s chill hours and zone:

Chill and zone requirements are comfortably met in 66408.

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How many chill hours does 66408 get?: 66408 averages 1388 chill hours per winter, ranging from 1194 to 1706 across the last 10 years.
What hardiness zone is 66408?: 66408 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