How many chill hours does 94506 get?

94506 averages 1165 chill hours per winter, ranging from 926 to 1780 across the last 10 years.

What hardiness zone is 94506?

94506 is in USDA hardiness zone 9b.

Location almanac

The short answer

94506 averages 1,165 chill hours per winter (926–1,780 across 10 years) in USDA zone 9b.

94506 climate
Average chill hours	1,165 (926–1,780 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically January 7 – February 28
First fall frost	typically November 29 – 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 94506’s chill hours and zone:

Chill and zone requirements are comfortably met in 94506.

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How many chill hours does 94506 get?: 94506 averages 1165 chill hours per winter, ranging from 926 to 1780 across the last 10 years.
What hardiness zone is 94506?: 94506 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