How many chill hours does 78619 get?

78619 averages 547 chill hours per winter, ranging from 268 to 789 across the last 10 years.

What hardiness zone is 78619?

78619 is in USDA hardiness zone 8b.

Location almanac

The short answer

78619 averages 547 chill hours per winter (268–789 across 10 years) in USDA zone 8b.

78619 climate
Average chill hours	547 (268–789 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically January 11 – 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 78619’s chill hours and zone:

Chill and zone requirements are comfortably met in 78619.

Show 71 more good fit varieties

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

Show 2 more marginal varieties

How many chill hours does 78619 get?: 78619 averages 547 chill hours per winter, ranging from 268 to 789 across the last 10 years.
What hardiness zone is 78619?: 78619 is in USDA hardiness zone 8b.

Growing fruit trees in 78619? 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