How many chill hours does 95409 get?

95409 averages 1406 chill hours per winter, ranging from 1170 to 2011 across the last 10 years.

What hardiness zone is 95409?

95409 is in USDA hardiness zone 9b.

Location almanac

The short answer

95409 averages 1,406 chill hours per winter (1,170–2,011 across 10 years) in USDA zone 9b.

95409 climate
Average chill hours	1,406 (1,170–2,011 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically February 3 – March 28
First fall frost	typically November 25 – December 26

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 95409’s chill hours and zone:

Chill and zone requirements are comfortably met in 95409.

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How many chill hours does 95409 get?: 95409 averages 1406 chill hours per winter, ranging from 1170 to 2011 across the last 10 years.
What hardiness zone is 95409?: 95409 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