How many chill hours does 77624 get?

77624 averages 514 chill hours per winter, ranging from 210 to 630 across the last 10 years.

What hardiness zone is 77624?

77624 is in USDA hardiness zone 9a.

Location almanac

The short answer

77624 averages 514 chill hours per winter (210–630 across 10 years) in USDA zone 9a.

77624 climate
Average chill hours	514 (210–630 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 18 – March 5
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 77624’s chill hours and zone:

Chill and zone requirements are comfortably met in 77624.

Show 48 more good fit varieties

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

How many chill hours does 77624 get?: 77624 averages 514 chill hours per winter, ranging from 210 to 630 across the last 10 years.
What hardiness zone is 77624?: 77624 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