How many chill hours does 81033 get?

81033 averages 1451 chill hours per winter, ranging from 1224 to 1631 across the last 10 years.

What hardiness zone is 81033?

81033 is in USDA hardiness zone 6b.

Location almanac

The short answer

81033 averages 1,451 chill hours per winter (1,224–1,631 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 81033’s chill hours and zone:

Chill and zone requirements are comfortably met in 81033.

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How many chill hours does 81033 get?: 81033 averages 1451 chill hours per winter, ranging from 1224 to 1631 across the last 10 years.
What hardiness zone is 81033?: 81033 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