How many chill hours does 03104 get?

03104 averages 1564 chill hours per winter, ranging from 1362 to 1818 across the last 10 years.

What hardiness zone is 03104?

03104 is in USDA hardiness zone 6a.

Location almanac

The short answer

03104 averages 1,564 chill hours per winter (1,362–1,818 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 03104’s chill hours and zone:

Chill and zone requirements are comfortably met in 03104.

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How many chill hours does 03104 get?: 03104 averages 1564 chill hours per winter, ranging from 1362 to 1818 across the last 10 years.
What hardiness zone is 03104?: 03104 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