How many chill hours does 67221 get?

67221 averages 1382 chill hours per winter, ranging from 1199 to 1738 across the last 10 years.

What hardiness zone is 67221?

67221 is in USDA hardiness zone 7a.

Location almanac

The short answer

67221 averages 1,382 chill hours per winter (1,199–1,738 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 67221’s chill hours and zone:

Chill and zone requirements are comfortably met in 67221.

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How many chill hours does 67221 get?: 67221 averages 1382 chill hours per winter, ranging from 1199 to 1738 across the last 10 years.
What hardiness zone is 67221?: 67221 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