How many chill hours does 93221 get?

93221 averages 1282 chill hours per winter, ranging from 1035 to 1799 across the last 10 years.

What hardiness zone is 93221?

93221 is in USDA hardiness zone 9b.

Location almanac

The short answer

93221 averages 1,282 chill hours per winter (1,035–1,799 across 10 years) in USDA zone 9b.

93221 climate
Average chill hours	1,282 (1,035–1,799 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically January 26 – March 6
First fall frost	typically November 27 – December 21

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 93221’s chill hours and zone:

Chill and zone requirements are comfortably met in 93221.

Show 87 more good fit varieties

How many chill hours does 93221 get?: 93221 averages 1282 chill hours per winter, ranging from 1035 to 1799 across the last 10 years.
What hardiness zone is 93221?: 93221 is in USDA hardiness zone 9b.

Growing fruit trees in 93221? Get a care calendar anchored to this exact climate, with email reminders.

[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