How many chill hours does 38721 get?

38721 averages 799 chill hours per winter, ranging from 502 to 974 across the last 10 years.

What hardiness zone is 38721?

38721 is in USDA hardiness zone 8b.

Location almanac

The short answer

38721 averages 799 chill hours per winter (502–974 across 10 years) in USDA zone 8b.

38721 climate
Average chill hours	799 (502–974 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically February 8 – March 13
First fall frost	typically November 15 – 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 38721’s chill hours and zone:

Chill and zone requirements are comfortably met in 38721.

Show 103 more good fit varieties

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

How many chill hours does 38721 get?: 38721 averages 799 chill hours per winter, ranging from 502 to 974 across the last 10 years.
What hardiness zone is 38721?: 38721 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