How many chill hours does 63640 get?

63640 averages 1460 chill hours per winter, ranging from 1172 to 1757 across the last 10 years.

What hardiness zone is 63640?

63640 is in USDA hardiness zone 6b.

Location almanac

The short answer

63640 averages 1,460 chill hours per winter (1,172–1,757 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 63640’s chill hours and zone:

Chill and zone requirements are comfortably met in 63640.

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How many chill hours does 63640 get?: 63640 averages 1460 chill hours per winter, ranging from 1172 to 1757 across the last 10 years.
What hardiness zone is 63640?: 63640 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