How many chill hours does 75604 get?

75604 averages 785 chill hours per winter, ranging from 417 to 1101 across the last 10 years.

What hardiness zone is 75604?

75604 is in USDA hardiness zone 8b.

Location almanac

The short answer

75604 averages 785 chill hours per winter (417–1,101 across 10 years) in USDA zone 8b.

75604 climate
Average chill hours	785 (417–1,101 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically February 7 – March 7
First fall frost	typically November 13 – December 8

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 75604’s chill hours and zone:

Chill and zone requirements are comfortably met in 75604.

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 75604 get?: 75604 averages 785 chill hours per winter, ranging from 417 to 1101 across the last 10 years.
What hardiness zone is 75604?: 75604 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