How many chill hours does 39540 get?

39540 averages 435 chill hours per winter, ranging from 255 to 566 across the last 10 years.

What hardiness zone is 39540?

39540 is in USDA hardiness zone 9a.

Location almanac

The short answer

39540 averages 435 chill hours per winter (255–566 across 10 years) in USDA zone 9a.

39540 climate
Average chill hours	435 (255–566 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 19 – March 13
First fall frost	typically November 13 – December 27

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 39540’s chill hours and zone:

Chill and zone requirements are comfortably met in 39540.

Show 34 more good fit varieties

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

How many chill hours does 39540 get?: 39540 averages 435 chill hours per winter, ranging from 255 to 566 across the last 10 years.
What hardiness zone is 39540?: 39540 is in USDA hardiness zone 9a.

Growing fruit trees in 39540? 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