How many chill hours does 77375 get?

77375 averages 455 chill hours per winter, ranging from 185 to 554 across the last 10 years.

What hardiness zone is 77375?

77375 is in USDA hardiness zone 9b.

Location almanac

The short answer

77375 averages 455 chill hours per winter (185–554 across 10 years) in USDA zone 9b.

77375 climate
Average chill hours	455 (185–554 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically January 18 – March 6
First fall frost	typically November 13 – December 20

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 77375’s chill hours and zone:

Chill and zone requirements are comfortably met in 77375.

Show 36 more good fit varieties

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

How many chill hours does 77375 get?: 77375 averages 455 chill hours per winter, ranging from 185 to 554 across the last 10 years.
What hardiness zone is 77375?: 77375 is in USDA hardiness zone 9b.

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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