How many chill hours does 92398 get?

92398 averages 1446 chill hours per winter, ranging from 996 to 1849 across the last 10 years.

What hardiness zone is 92398?

92398 is in USDA hardiness zone 9a.

Location almanac

The short answer

92398 averages 1,446 chill hours per winter (996–1,849 across 10 years) in USDA zone 9a.

92398 climate
Average chill hours	1,446 (996–1,849 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically March 4 – April 5
First fall frost	typically November 4 – November 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 92398’s chill hours and zone:

Chill and zone requirements are comfortably met in 92398.

Show 87 more good fit varieties

How many chill hours does 92398 get?: 92398 averages 1446 chill hours per winter, ranging from 996 to 1849 across the last 10 years.
What hardiness zone is 92398?: 92398 is in USDA hardiness zone 9a.

Growing fruit trees in 92398? 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