How many chill hours does 75973 get?

75973 averages 587 chill hours per winter, ranging from 280 to 723 across the last 10 years.

What hardiness zone is 75973?

75973 is in USDA hardiness zone 8b.

Location almanac

The short answer

75973 averages 587 chill hours per winter (280–723 across 10 years) in USDA zone 8b.

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 75973’s chill hours and zone:

Chill and zone requirements are comfortably met in 75973.

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

How many chill hours does 75973 get?: 75973 averages 587 chill hours per winter, ranging from 280 to 723 across the last 10 years.
What hardiness zone is 75973?: 75973 is in USDA hardiness zone 8b.

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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