How many chill hours does 89021 get?

89021 averages 906 chill hours per winter, ranging from 614 to 1276 across the last 10 years.

What hardiness zone is 89021?

89021 is in USDA hardiness zone 9a.

Location almanac

The short answer

89021 averages 906 chill hours per winter (614–1,276 across 10 years) in USDA zone 9a.

89021 climate
Average chill hours	906 (614–1,276 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 13 – February 26
First fall frost	typically November 27 – December 18

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 89021’s chill hours and zone:

Chill and zone requirements are comfortably met in 89021.

Show 87 more good fit varieties

How many chill hours does 89021 get?: 89021 averages 906 chill hours per winter, ranging from 614 to 1276 across the last 10 years.
What hardiness zone is 89021?: 89021 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