How many chill hours does 77412 get?

77412 averages 404 chill hours per winter, ranging from 155 to 514 across the last 10 years.

What hardiness zone is 77412?

77412 is in USDA hardiness zone 9a.

Location almanac

The short answer

77412 averages 404 chill hours per winter (155–514 across 10 years) in USDA zone 9a.

77412 climate
Average chill hours	404 (155–514 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 8 – February 20
First fall frost	typically November 13 – 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 77412’s chill hours and zone:

Chill and zone requirements are comfortably met in 77412.

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 77412 get?: 77412 averages 404 chill hours per winter, ranging from 155 to 514 across the last 10 years.
What hardiness zone is 77412?: 77412 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