How many chill hours does 03273 get?

03273 averages 1392 chill hours per winter, ranging from 1167 to 1731 across the last 10 years.

What hardiness zone is 03273?

03273 is in USDA hardiness zone 5b.

Location almanac

The short answer

03273 averages 1,392 chill hours per winter (1,167–1,731 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 03273’s chill hours and zone:

Chill and zone requirements are comfortably met in 03273.

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How many chill hours does 03273 get?: 03273 averages 1392 chill hours per winter, ranging from 1167 to 1731 across the last 10 years.
What hardiness zone is 03273?: 03273 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