How many chill hours does 93609 get?

93609 averages 971 chill hours per winter, ranging from 742 to 1424 across the last 10 years.

What hardiness zone is 93609?

93609 is in USDA hardiness zone 9a.

Location almanac

The short answer

93609 averages 971 chill hours per winter (742–1,424 across 10 years) in USDA zone 9a.

93609 climate
Average chill hours	971 (742–1,424 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 13 – February 26
First fall frost	typically November 21 – 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 93609’s chill hours and zone:

Chill and zone requirements are comfortably met in 93609.

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How many chill hours does 93609 get?: 93609 averages 971 chill hours per winter, ranging from 742 to 1424 across the last 10 years.
What hardiness zone is 93609?: 93609 is in USDA hardiness zone 9a.

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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