How many chill hours does 95421 get?

95421 averages 1309 chill hours per winter, ranging from 1017 to 1926 across the last 10 years.

What hardiness zone is 95421?

95421 is in USDA hardiness zone 9b.

Location almanac

The short answer

95421 averages 1,309 chill hours per winter (1,017–1,926 across 10 years) in USDA zone 9b.

95421 climate
Average chill hours	1,309 (1,017–1,926 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically February 22 – March 27
First fall frost	typically November 17 – December 11

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 95421’s chill hours and zone:

Chill and zone requirements are comfortably met in 95421.

Show 87 more good fit varieties

How many chill hours does 95421 get?: 95421 averages 1309 chill hours per winter, ranging from 1017 to 1926 across the last 10 years.
What hardiness zone is 95421?: 95421 is in USDA hardiness zone 9b.

Growing fruit trees in 95421? 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