How many chill hours does 81325 get?

81325 averages 1501 chill hours per winter, ranging from 1267 to 1731 across the last 10 years.

What hardiness zone is 81325?

81325 is in USDA hardiness zone 6b.

Location almanac

The short answer

81325 averages 1,501 chill hours per winter (1,267–1,731 across 10 years) in USDA zone 6b.

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 81325’s chill hours and zone:

Chill and zone requirements are comfortably met in 81325.

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How many chill hours does 81325 get?: 81325 averages 1501 chill hours per winter, ranging from 1267 to 1731 across the last 10 years.
What hardiness zone is 81325?: 81325 is in USDA hardiness zone 6b.

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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