How many chill hours does 85226 get?

85226 averages 491 chill hours per winter, ranging from 289 to 740 across the last 10 years.

What hardiness zone is 85226?

85226 is in USDA hardiness zone 9b.

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The short answer

85226 averages 491 chill hours per winter (289–740 across 10 years) in USDA zone 9b.

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 85226’s chill hours and zone:

Chill and zone requirements are comfortably met in 85226.

Show 36 more good fit varieties

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

How many chill hours does 85226 get?: 85226 averages 491 chill hours per winter, ranging from 289 to 740 across the last 10 years.
What hardiness zone is 85226?: 85226 is in USDA hardiness zone 9b.

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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