How many chill hours does 68621 get?

68621 averages 1355 chill hours per winter, ranging from 1181 to 1624 across the last 10 years.

What hardiness zone is 68621?

68621 is in USDA hardiness zone 5b.

Location almanac

The short answer

68621 averages 1,355 chill hours per winter (1,181–1,624 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 68621’s chill hours and zone:

Chill and zone requirements are comfortably met in 68621.

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How many chill hours does 68621 get?: 68621 averages 1355 chill hours per winter, ranging from 1181 to 1624 across the last 10 years.
What hardiness zone is 68621?: 68621 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