How many chill hours does 71439 get?

71439 averages 615 chill hours per winter, ranging from 287 to 749 across the last 10 years.

What hardiness zone is 71439?

71439 is in USDA hardiness zone 9a.

Location almanac

The short answer

71439 averages 615 chill hours per winter (287–749 across 10 years) in USDA zone 9a.

71439 climate
Average chill hours	615 (287–749 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 8 – March 12
First fall frost	typically November 12 – December 20

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 71439’s chill hours and zone:

Chill and zone requirements are comfortably met in 71439.

Show 54 more good fit varieties

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

How many chill hours does 71439 get?: 71439 averages 615 chill hours per winter, ranging from 287 to 749 across the last 10 years.
What hardiness zone is 71439?: 71439 is in USDA hardiness zone 9a.

Growing fruit trees in 71439? Get a care calendar anchored to this exact climate, with email reminders.

[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