How many chill hours does 78211 get?

78211 averages 406 chill hours per winter, ranging from 223 to 512 across the last 10 years.

What hardiness zone is 78211?

78211 is in USDA hardiness zone 9a.

Location almanac

The short answer

78211 averages 406 chill hours per winter (223–512 across 10 years) in USDA zone 9a.

78211 climate
Average chill hours	406 (223–512 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 8 – March 5
First fall frost	typically November 12 – December 19

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 78211’s chill hours and zone:

Chill and zone requirements are comfortably met in 78211.

Show 34 more good fit varieties

Possible in a good year or a favorable microclimate — click through for the caveats.

How many chill hours does 78211 get?: 78211 averages 406 chill hours per winter, ranging from 223 to 512 across the last 10 years.
What hardiness zone is 78211?: 78211 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