How many chill hours does 80428 get?

80428 averages 684 chill hours per winter, ranging from 517 to 953 across the last 10 years.

What hardiness zone is 80428?

80428 is in USDA hardiness zone 5a.

Location almanac

The short answer

80428 averages 684 chill hours per winter (517–953 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 80428’s chill hours and zone:

Chill and zone requirements are comfortably met in 80428.

Show 69 more good fit varieties

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

Show 21 more marginal varieties

How many chill hours does 80428 get?: 80428 averages 684 chill hours per winter, ranging from 517 to 953 across the last 10 years.
What hardiness zone is 80428?: 80428 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