How many chill hours does 97110 get?

97110 averages 1557 chill hours per winter, ranging from 1226 to 2101 across the last 10 years.

What hardiness zone is 97110?

97110 is in USDA hardiness zone 9a.

Location almanac

The short answer

97110 averages 1,557 chill hours per winter (1,226–2,101 across 10 years) in USDA zone 9a.

97110 climate
Average chill hours	1,557 (1,226–2,101 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 13 – March 5
First fall frost	typically November 30 – 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 97110’s chill hours and zone:

Chill and zone requirements are comfortably met in 97110.

Show 87 more good fit varieties

How many chill hours does 97110 get?: 97110 averages 1557 chill hours per winter, ranging from 1226 to 2101 across the last 10 years.
What hardiness zone is 97110?: 97110 is in USDA hardiness zone 9a.

Growing fruit trees in 97110? 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