How many chill hours does 74431 get?

74431 averages 1160 chill hours per winter, ranging from 935 to 1423 across the last 10 years.

What hardiness zone is 74431?

74431 is in USDA hardiness zone 7b.

Location almanac

The short answer

74431 averages 1,160 chill hours per winter (935–1,423 across 10 years) in USDA zone 7b.

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 74431’s chill hours and zone:

Chill and zone requirements are comfortably met in 74431.

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How many chill hours does 74431 get?: 74431 averages 1160 chill hours per winter, ranging from 935 to 1423 across the last 10 years.
What hardiness zone is 74431?: 74431 is in USDA hardiness zone 7b.

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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