How many chill hours does 93631 get?

93631 averages 1034 chill hours per winter, ranging from 748 to 1444 across the last 10 years.

What hardiness zone is 93631?

93631 is in USDA hardiness zone 9b.

Location almanac

The short answer

93631 averages 1,034 chill hours per winter (748–1,444 across 10 years) in USDA zone 9b.

93631 climate
Average chill hours	1,034 (748–1,444 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically January 13 – February 26
First fall frost	typically November 30 – December 28

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 93631’s chill hours and zone:

Chill and zone requirements are comfortably met in 93631.

Show 87 more good fit varieties

How many chill hours does 93631 get?: 93631 averages 1034 chill hours per winter, ranging from 748 to 1444 across the last 10 years.
What hardiness zone is 93631?: 93631 is in USDA hardiness zone 9b.

Growing fruit trees in 93631? 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