How many chill hours does 95811 get?

95811 averages 1002 chill hours per winter, ranging from 810 to 1460 across the last 10 years.

What hardiness zone is 95811?

95811 is in USDA hardiness zone 9b.

Location almanac

The short answer

95811 averages 1,002 chill hours per winter (810–1,460 across 10 years) in USDA zone 9b.

95811 climate
Average chill hours	1,002 (810–1,460 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically January 26 – March 6
First fall frost	typically November 27 – December 28

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 95811’s chill hours and zone:

Chill and zone requirements are comfortably met in 95811.

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How many chill hours does 95811 get?: 95811 averages 1002 chill hours per winter, ranging from 810 to 1460 across the last 10 years.
What hardiness zone is 95811?: 95811 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