How many chill hours does 38321 get?

38321 averages 1181 chill hours per winter, ranging from 981 to 1461 across the last 10 years.

What hardiness zone is 38321?

38321 is in USDA hardiness zone 7b.

Location almanac

The short answer

38321 averages 1,181 chill hours per winter (981–1,461 across 10 years) in USDA zone 7b.

38321 climate
Average chill hours	1,181 (981–1,461 across 10 winters)
USDA hardiness zone	7b
Last spring frost	typically March 8 – April 2
First fall frost	typically November 1 – December 2

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 38321’s chill hours and zone:

Chill and zone requirements are comfortably met in 38321.

Show 131 more good fit varieties

How many chill hours does 38321 get?: 38321 averages 1181 chill hours per winter, ranging from 981 to 1461 across the last 10 years.
What hardiness zone is 38321?: 38321 is in USDA hardiness zone 7b.

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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