How many chill hours does 78024 get?

78024 averages 650 chill hours per winter, ranging from 372 to 867 across the last 10 years.

What hardiness zone is 78024?

78024 is in USDA hardiness zone 8a.

Location almanac

The short answer

78024 averages 650 chill hours per winter (372–867 across 10 years) in USDA zone 8a.

78024 climate
Average chill hours	650 (372–867 across 10 winters)
USDA hardiness zone	8a
Last spring frost	typically January 17 – March 6
First fall frost	typically November 13 – 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 78024’s chill hours and zone:

Chill and zone requirements are comfortably met in 78024.

Show 79 more good fit varieties

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

Show 14 more marginal varieties

How many chill hours does 78024 get?: 78024 averages 650 chill hours per winter, ranging from 372 to 867 across the last 10 years.
What hardiness zone is 78024?: 78024 is in USDA hardiness zone 8a.

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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