How many chill hours does 03031 get?

03031 averages 1613 chill hours per winter, ranging from 1401 to 1874 across the last 10 years.

What hardiness zone is 03031?

03031 is in USDA hardiness zone 6a.

Location almanac

The short answer

03031 averages 1,613 chill hours per winter (1,401–1,874 across 10 years) in USDA zone 6a.

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 03031’s chill hours and zone:

Chill and zone requirements are comfortably met in 03031.

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How many chill hours does 03031 get?: 03031 averages 1613 chill hours per winter, ranging from 1401 to 1874 across the last 10 years.
What hardiness zone is 03031?: 03031 is in USDA hardiness zone 6a.

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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