How many chill hours does 54003 get?

54003 averages 1225 chill hours per winter, ranging from 1041 to 1511 across the last 10 years.

What hardiness zone is 54003?

54003 is in USDA hardiness zone 4b.

Location almanac

The short answer

54003 averages 1,225 chill hours per winter (1,041–1,511 across 10 years) in USDA zone 4b.

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 54003’s chill hours and zone:

Chill and zone requirements are comfortably met in 54003.

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How many chill hours does 54003 get?: 54003 averages 1225 chill hours per winter, ranging from 1041 to 1511 across the last 10 years.
What hardiness zone is 54003?: 54003 is in USDA hardiness zone 4b.

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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