How many chill hours does 68664 get?

68664 averages 1355 chill hours per winter, ranging from 1189 to 1630 across the last 10 years.

What hardiness zone is 68664?

68664 is in USDA hardiness zone 5b.

Location almanac

The short answer

68664 averages 1,355 chill hours per winter (1,189–1,630 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 68664’s chill hours and zone:

Chill and zone requirements are comfortably met in 68664.

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How many chill hours does 68664 get?: 68664 averages 1355 chill hours per winter, ranging from 1189 to 1630 across the last 10 years.
What hardiness zone is 68664?: 68664 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