How many chill hours does 95443 get?

95443 averages 2061 chill hours per winter, ranging from 1816 to 2476 across the last 10 years.

What hardiness zone is 95443?

95443 is in USDA hardiness zone 9b.

Location almanac

The short answer

95443 averages 2,061 chill hours per winter (1,816–2,476 across 10 years) in USDA zone 9b.

95443 climate
Average chill hours	2,061 (1,816–2,476 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically February 3 – April 7
First fall frost	typically November 16 – December 11

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 95443’s chill hours and zone:

Chill and zone requirements are comfortably met in 95443.

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How many chill hours does 95443 get?: 95443 averages 2061 chill hours per winter, ranging from 1816 to 2476 across the last 10 years.
What hardiness zone is 95443?: 95443 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