How many chill hours does 83221 get?

83221 averages 1365 chill hours per winter, ranging from 780 to 1860 across the last 10 years.

What hardiness zone is 83221?

83221 is in USDA hardiness zone 5b.

Location almanac

The short answer

83221 averages 1,365 chill hours per winter (780–1,860 across 10 years) in USDA zone 5b.

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 83221’s chill hours and zone:

Chill and zone requirements are comfortably met in 83221.

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How many chill hours does 83221 get?: 83221 averages 1365 chill hours per winter, ranging from 780 to 1860 across the last 10 years.
What hardiness zone is 83221?: 83221 is in USDA hardiness zone 5b.

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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