How many chill hours does 76821 get?

76821 averages 815 chill hours per winter, ranging from 546 to 1104 across the last 10 years.

What hardiness zone is 76821?

76821 is in USDA hardiness zone 8a.

Location almanac

The short answer

76821 averages 815 chill hours per winter (546–1,104 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 76821’s chill hours and zone:

Chill and zone requirements are comfortably met in 76821.

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Possible in a good year or a favorable microclimate — click through for the caveats.

How many chill hours does 76821 get?: 76821 averages 815 chill hours per winter, ranging from 546 to 1104 across the last 10 years.
What hardiness zone is 76821?: 76821 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