How many chill hours does 97439 get?

97439 averages 1670 chill hours per winter, ranging from 1335 to 2196 across the last 10 years.

What hardiness zone is 97439?

97439 is in USDA hardiness zone 9a.

Location almanac

The short answer

97439 averages 1,670 chill hours per winter (1,335–2,196 across 10 years) in USDA zone 9a.

97439 climate
Average chill hours	1,670 (1,335–2,196 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 3 – March 26
First fall frost	typically November 10 – December 21

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 97439’s chill hours and zone:

Chill and zone requirements are comfortably met in 97439.

Show 87 more good fit varieties

How many chill hours does 97439 get?: 97439 averages 1670 chill hours per winter, ranging from 1335 to 2196 across the last 10 years.
What hardiness zone is 97439?: 97439 is in USDA hardiness zone 9a.

Growing fruit trees in 97439? 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