How many chill hours does 39443 get?

39443 averages 703 chill hours per winter, ranging from 418 to 873 across the last 10 years.

What hardiness zone is 39443?

39443 is in USDA hardiness zone 8b.

Location almanac

The short answer

39443 averages 703 chill hours per winter (418–873 across 10 years) in USDA zone 8b.

39443 climate
Average chill hours	703 (418–873 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically February 3 – March 13
First fall frost	typically November 15 – 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 39443’s chill hours and zone:

Chill and zone requirements are comfortably met in 39443.

Show 95 more good fit varieties

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

How many chill hours does 39443 get?: 39443 averages 703 chill hours per winter, ranging from 418 to 873 across the last 10 years.
What hardiness zone is 39443?: 39443 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