How many chill hours does 38457 get?

38457 averages 1115 chill hours per winter, ranging from 885 to 1363 across the last 10 years.

What hardiness zone is 38457?

38457 is in USDA hardiness zone 7b.

Location almanac

The short answer

38457 averages 1,115 chill hours per winter (885–1,363 across 10 years) in USDA zone 7b.

38457 climate
Average chill hours	1,115 (885–1,363 across 10 winters)
USDA hardiness zone	7b
Last spring frost	typically March 8 – April 3
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 38457’s chill hours and zone:

Chill and zone requirements are comfortably met in 38457.

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How many chill hours does 38457 get?: 38457 averages 1115 chill hours per winter, ranging from 885 to 1363 across the last 10 years.
What hardiness zone is 38457?: 38457 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