How many chill hours does 92201 get?

92201 averages 43 chill hours per winter, ranging from 12 to 183 across the last 10 years.

What hardiness zone is 92201?

92201 is in USDA hardiness zone 10a.

Location almanac

The short answer

92201 averages 43 chill hours per winter (12–183 across 10 years) in USDA zone 10a.

92201 climate
Average chill hours	43 (12–183 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 92201’s chill hours and zone:

Chill and zone requirements are comfortably met in 92201.

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

How many chill hours does 92201 get?: 92201 averages 43 chill hours per winter, ranging from 12 to 183 across the last 10 years.
What hardiness zone is 92201?: 92201 is in USDA hardiness zone 10a.

Growing fruit trees in 92201? 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