How many chill hours does 75103 get?

75103 averages 794 chill hours per winter, ranging from 398 to 1135 across the last 10 years.

What hardiness zone is 75103?

75103 is in USDA hardiness zone 8b.

Location almanac

The short answer

75103 averages 794 chill hours per winter (398–1,135 across 10 years) in USDA zone 8b.

75103 climate
Average chill hours	794 (398–1,135 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically February 5 – March 7
First fall frost	typically November 13 – 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 75103’s chill hours and zone:

Chill and zone requirements are comfortably met in 75103.

Show 103 more good fit varieties

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

How many chill hours does 75103 get?: 75103 averages 794 chill hours per winter, ranging from 398 to 1135 across the last 10 years.
What hardiness zone is 75103?: 75103 is in USDA hardiness zone 8b.

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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