How many chill hours does 73554 get?

73554 averages 1173 chill hours per winter, ranging from 950 to 1534 across the last 10 years.

What hardiness zone is 73554?

73554 is in USDA hardiness zone 7b.

Location almanac

The short answer

73554 averages 1,173 chill hours per winter (950–1,534 across 10 years) in USDA zone 7b.

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 73554’s chill hours and zone:

Chill and zone requirements are comfortably met in 73554.

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How many chill hours does 73554 get?: 73554 averages 1173 chill hours per winter, ranging from 950 to 1534 across the last 10 years.
What hardiness zone is 73554?: 73554 is in USDA hardiness zone 7b.

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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