How many chill hours does 81224 get?

81224 averages 717 chill hours per winter, ranging from 593 to 982 across the last 10 years.

What hardiness zone is 81224?

81224 is in USDA hardiness zone 5a.

Location almanac

The short answer

81224 averages 717 chill hours per winter (593–982 across 10 years) in USDA zone 5a.

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 81224’s chill hours and zone:

Chill and zone requirements are comfortably met in 81224.

Show 86 more good fit varieties

Possible in a good year or a favorable microclimate — click through for the caveats.

Show 4 more marginal varieties

How many chill hours does 81224 get?: 81224 averages 717 chill hours per winter, ranging from 593 to 982 across the last 10 years.
What hardiness zone is 81224?: 81224 is in USDA hardiness zone 5a.

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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