How many chill hours does 04231 get?

04231 averages 1279 chill hours per winter, ranging from 1066 to 1758 across the last 10 years.

What hardiness zone is 04231?

04231 is in USDA hardiness zone 5a.

Location almanac

The short answer

04231 averages 1,279 chill hours per winter (1,066–1,758 across 10 years) in USDA zone 5a.

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 04231’s chill hours and zone:

Chill and zone requirements are comfortably met in 04231.

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How many chill hours does 04231 get?: 04231 averages 1279 chill hours per winter, ranging from 1066 to 1758 across the last 10 years.
What hardiness zone is 04231?: 04231 is in USDA hardiness zone 5a.

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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