How many chill hours does 31039 get?

31039 averages 822 chill hours per winter, ranging from 596 to 920 across the last 10 years.

What hardiness zone is 31039?

31039 is in USDA hardiness zone 8b.

Location almanac

The short answer

31039 averages 822 chill hours per winter (596–920 across 10 years) in USDA zone 8b.

31039 climate
Average chill hours	822 (596–920 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically February 27 – March 20
First fall frost	typically November 16 – December 11

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 31039’s chill hours and zone:

Chill and zone requirements are comfortably met in 31039.

Show 123 more good fit varieties

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

How many chill hours does 31039 get?: 31039 averages 822 chill hours per winter, ranging from 596 to 920 across the last 10 years.
What hardiness zone is 31039?: 31039 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