How many chill hours does 93602 get?

93602 averages 1964 chill hours per winter, ranging from 1566 to 2144 across the last 10 years.

What hardiness zone is 93602?

93602 is in USDA hardiness zone 9a.

Location almanac

The short answer

93602 averages 1,964 chill hours per winter (1,566–2,144 across 10 years) in USDA zone 9a.

93602 climate
Average chill hours	1,964 (1,566–2,144 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically April 11 – May 11
First fall frost	typically November 3 – December 1

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 93602’s chill hours and zone:

Chill and zone requirements are comfortably met in 93602.

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How many chill hours does 93602 get?: 93602 averages 1964 chill hours per winter, ranging from 1566 to 2144 across the last 10 years.
What hardiness zone is 93602?: 93602 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