How many chill hours does 30450 get?

30450 averages 646 chill hours per winter, ranging from 413 to 789 across the last 10 years.

What hardiness zone is 30450?

30450 is in USDA hardiness zone 8b.

Location almanac

The short answer

30450 averages 646 chill hours per winter (413–789 across 10 years) in USDA zone 8b.

30450 climate
Average chill hours	646 (413–789 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically January 28 – March 13
First fall frost	typically November 28 – 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 30450’s chill hours and zone:

Chill and zone requirements are comfortably met in 30450.

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 30450 get?: 30450 averages 646 chill hours per winter, ranging from 413 to 789 across the last 10 years.
What hardiness zone is 30450?: 30450 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