How many chill hours does 31516 get?

31516 averages 536 chill hours per winter, ranging from 286 to 659 across the last 10 years.

What hardiness zone is 31516?

31516 is in USDA hardiness zone 8b.

Location almanac

The short answer

31516 averages 536 chill hours per winter (286–659 across 10 years) in USDA zone 8b.

31516 climate
Average chill hours	536 (286–659 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically January 28 – March 13
First fall frost	typically November 13 – December 5

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 31516’s chill hours and zone:

Chill and zone requirements are comfortably met in 31516.

Show 71 more good fit varieties

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

How many chill hours does 31516 get?: 31516 averages 536 chill hours per winter, ranging from 286 to 659 across the last 10 years.
What hardiness zone is 31516?: 31516 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