How many chill hours does 89039 get?

89039 averages 768 chill hours per winter, ranging from 419 to 1250 across the last 10 years.

What hardiness zone is 89039?

89039 is in USDA hardiness zone 9a.

Location almanac

The short answer

89039 averages 768 chill hours per winter (419–1,250 across 10 years) in USDA zone 9a.

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 89039’s chill hours and zone:

Chill and zone requirements are comfortably met in 89039.

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

How many chill hours does 89039 get?: 89039 averages 768 chill hours per winter, ranging from 419 to 1250 across the last 10 years.
What hardiness zone is 89039?: 89039 is in USDA hardiness zone 9a.

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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