How many chill hours does 92251 get?

92251 averages 130 chill hours per winter, ranging from 85 to 229 across the last 10 years.

What hardiness zone is 92251?

92251 is in USDA hardiness zone 10a.

Location almanac

The short answer

92251 averages 130 chill hours per winter (85–229 across 10 years) in USDA zone 10a.

92251 climate
Average chill hours	130 (85–229 across 10 winters)
USDA hardiness zone	10a

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 92251’s chill hours and zone:

Chill and zone requirements are comfortably met in 92251.

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

How many chill hours does 92251 get?: 92251 averages 130 chill hours per winter, ranging from 85 to 229 across the last 10 years.
What hardiness zone is 92251?: 92251 is in USDA hardiness zone 10a.

Growing fruit trees in 92251? 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