How many chill hours does 78747 get?

78747 averages 514 chill hours per winter, ranging from 250 to 721 across the last 10 years.

What hardiness zone is 78747?

78747 is in USDA hardiness zone 9a.

Location almanac

The short answer

78747 averages 514 chill hours per winter (250–721 across 10 years) in USDA zone 9a.

78747 climate
Average chill hours	514 (250–721 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 20 – March 6
First fall frost	typically November 12 – 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 78747’s chill hours and zone:

Chill and zone requirements are comfortably met in 78747.

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 78747 get?: 78747 averages 514 chill hours per winter, ranging from 250 to 721 across the last 10 years.
What hardiness zone is 78747?: 78747 is in USDA hardiness zone 9a.

Growing fruit trees in 78747? 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