How many chill hours does 04431 get?

04431 averages 1446 chill hours per winter, ranging from 1262 to 1767 across the last 10 years.

What hardiness zone is 04431?

04431 is in USDA hardiness zone 5b.

Location almanac

The short answer

04431 averages 1,446 chill hours per winter (1,262–1,767 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 04431’s chill hours and zone:

Chill and zone requirements are comfortably met in 04431.

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How many chill hours does 04431 get?: 04431 averages 1446 chill hours per winter, ranging from 1262 to 1767 across the last 10 years.
What hardiness zone is 04431?: 04431 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