How many chill hours does 68055 get?

68055 averages 1357 chill hours per winter, ranging from 1170 to 1650 across the last 10 years.

What hardiness zone is 68055?

68055 is in USDA hardiness zone 5a.

Location almanac

The short answer

68055 averages 1,357 chill hours per winter (1,170–1,650 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 68055’s chill hours and zone:

Chill and zone requirements are comfortably met in 68055.

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How many chill hours does 68055 get?: 68055 averages 1357 chill hours per winter, ranging from 1170 to 1650 across the last 10 years.
What hardiness zone is 68055?: 68055 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