How many chill hours does 31548 get?

31548 averages 369 chill hours per winter, ranging from 153 to 547 across the last 10 years.

What hardiness zone is 31548?

31548 is in USDA hardiness zone 9a.

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The short answer

31548 averages 369 chill hours per winter (153–547 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 31548’s chill hours and zone:

Chill and zone requirements are comfortably met in 31548.

Show 26 more good fit varieties

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

How many chill hours does 31548 get?: 31548 averages 369 chill hours per winter, ranging from 153 to 547 across the last 10 years.
What hardiness zone is 31548?: 31548 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