How many chill hours does 31743 get?

31743 averages 609 chill hours per winter, ranging from 387 to 718 across the last 10 years.

What hardiness zone is 31743?

31743 is in USDA hardiness zone 8b.

Location almanac

The short answer

31743 averages 609 chill hours per winter (387–718 across 10 years) in USDA zone 8b.

31743 climate
Average chill hours	609 (387–718 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically January 31 – March 16
First fall frost	typically December 3 – December 23

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 31743’s chill hours and zone:

Chill and zone requirements are comfortably met in 31743.

Show 78 more good fit varieties

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

How many chill hours does 31743 get?: 31743 averages 609 chill hours per winter, ranging from 387 to 718 across the last 10 years.
What hardiness zone is 31743?: 31743 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