How many chill hours does 92256 get?

92256 averages 1675 chill hours per winter, ranging from 1011 to 2234 across the last 10 years.

What hardiness zone is 92256?

92256 is in USDA hardiness zone 9b.

Location almanac

The short answer

92256 averages 1,675 chill hours per winter (1,011–2,234 across 10 years) in USDA zone 9b.

92256 climate
Average chill hours	1,675 (1,011–2,234 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically March 6 – April 16
First fall frost	typically November 5 – December 1

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 92256’s chill hours and zone:

Chill and zone requirements are comfortably met in 92256.

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How many chill hours does 92256 get?: 92256 averages 1675 chill hours per winter, ranging from 1011 to 2234 across the last 10 years.
What hardiness zone is 92256?: 92256 is in USDA hardiness zone 9b.

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[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