How many chill hours does 43420 get?

43420 averages 1556 chill hours per winter, ranging from 1216 to 1862 across the last 10 years.

What hardiness zone is 43420?

43420 is in USDA hardiness zone 6b.

Location almanac

The short answer

43420 averages 1,556 chill hours per winter (1,216–1,862 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 43420’s chill hours and zone:

Chill and zone requirements are comfortably met in 43420.

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How many chill hours does 43420 get?: 43420 averages 1556 chill hours per winter, ranging from 1216 to 1862 across the last 10 years.
What hardiness zone is 43420?: 43420 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