How many chill hours does 92389 get?

92389 averages 698 chill hours per winter, ranging from 438 to 1010 across the last 10 years.

What hardiness zone is 92389?

92389 is in USDA hardiness zone 9a.

Location almanac

The short answer

92389 averages 698 chill hours per winter (438–1,010 across 10 years) in USDA zone 9a.

92389 climate
Average chill hours	698 (438–1,010 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 3 – February 24
First fall frost	typically November 30 – December 19

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 92389’s chill hours and zone:

Chill and zone requirements are comfortably met in 92389.

Show 55 more good fit varieties

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

Show 2 more marginal varieties

How many chill hours does 92389 get?: 92389 averages 698 chill hours per winter, ranging from 438 to 1010 across the last 10 years.
What hardiness zone is 92389?: 92389 is in USDA hardiness zone 9a.

Growing fruit trees in 92389? 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