How many chill hours does 31045 get?

31045 averages 856 chill hours per winter, ranging from 587 to 994 across the last 10 years.

What hardiness zone is 31045?

31045 is in USDA hardiness zone 8b.

Location almanac

The short answer

31045 averages 856 chill hours per winter (587–994 across 10 years) in USDA zone 8b.

31045 climate
Average chill hours	856 (587–994 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically February 25 – March 16
First fall frost	typically November 18 – December 10

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 31045’s chill hours and zone:

Chill and zone requirements are comfortably met in 31045.

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 31045 get?: 31045 averages 856 chill hours per winter, ranging from 587 to 994 across the last 10 years.
What hardiness zone is 31045?: 31045 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