How many chill hours does 30577 get?

30577 averages 1139 chill hours per winter, ranging from 895 to 1348 across the last 10 years.

What hardiness zone is 30577?

30577 is in USDA hardiness zone 8b.

Location almanac

The short answer

30577 averages 1,139 chill hours per winter (895–1,348 across 10 years) in USDA zone 8b.

30577 climate
Average chill hours	1,139 (895–1,348 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically March 7 – March 29
First fall frost	typically November 16 – 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 30577’s chill hours and zone:

Chill and zone requirements are comfortably met in 30577.

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How many chill hours does 30577 get?: 30577 averages 1139 chill hours per winter, ranging from 895 to 1348 across the last 10 years.
What hardiness zone is 30577?: 30577 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