How many chill hours does 39851 get?

39851 averages 578 chill hours per winter, ranging from 332 to 701 across the last 10 years.

What hardiness zone is 39851?

39851 is in USDA hardiness zone 8b.

Location almanac

The short answer

39851 averages 578 chill hours per winter (332–701 across 10 years) in USDA zone 8b.

39851 climate
Average chill hours	578 (332–701 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically January 20 – February 22
First fall frost	typically November 13 – December 26

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 39851’s chill hours and zone:

Chill and zone requirements are comfortably met in 39851.

Show 71 more good fit varieties

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

How many chill hours does 39851 get?: 39851 averages 578 chill hours per winter, ranging from 332 to 701 across the last 10 years.
What hardiness zone is 39851?: 39851 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