How many chill hours does 73438 get?

73438 averages 1061 chill hours per winter, ranging from 795 to 1330 across the last 10 years.

What hardiness zone is 73438?

73438 is in USDA hardiness zone 8a.

Location almanac

The short answer

73438 averages 1,061 chill hours per winter (795–1,330 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 73438’s chill hours and zone:

Chill and zone requirements are comfortably met in 73438.

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How many chill hours does 73438 get?: 73438 averages 1061 chill hours per winter, ranging from 795 to 1330 across the last 10 years.
What hardiness zone is 73438?: 73438 is in USDA hardiness zone 8a.

Growing fruit trees in 73438? Get a care calendar anchored to this exact climate, with email reminders.

[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