How many chill hours does 73491 get?

73491 averages 1104 chill hours per winter, ranging from 841 to 1396 across the last 10 years.

What hardiness zone is 73491?

73491 is in USDA hardiness zone 8a.

Location almanac

The short answer

73491 averages 1,104 chill hours per winter (841–1,396 across 10 years) in USDA zone 8a.

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 73491’s chill hours and zone:

Chill and zone requirements are comfortably met in 73491.

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How many chill hours does 73491 get?: 73491 averages 1104 chill hours per winter, ranging from 841 to 1396 across the last 10 years.
What hardiness zone is 73491?: 73491 is in USDA hardiness zone 8a.

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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