How many chill hours does 77351 get?

77351 averages 544 chill hours per winter, ranging from 240 to 657 across the last 10 years.

What hardiness zone is 77351?

77351 is in USDA hardiness zone 9a.

Location almanac

The short answer

77351 averages 544 chill hours per winter (240–657 across 10 years) in USDA zone 9a.

77351 climate
Average chill hours	544 (240–657 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 18 – March 6
First fall frost	typically November 12 – 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 77351’s chill hours and zone:

Chill and zone requirements are comfortably met in 77351.

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 77351 get?: 77351 averages 544 chill hours per winter, ranging from 240 to 657 across the last 10 years.
What hardiness zone is 77351?: 77351 is in USDA hardiness zone 9a.

Growing fruit trees in 77351? Get a care calendar anchored to this exact climate, with email reminders.

[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