How many chill hours does 78737 get?

78737 averages 573 chill hours per winter, ranging from 280 to 824 across the last 10 years.

What hardiness zone is 78737?

78737 is in USDA hardiness zone 8b.

Location almanac

The short answer

78737 averages 573 chill hours per winter (280–824 across 10 years) in USDA zone 8b.

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 78737’s chill hours and zone:

Chill and zone requirements are comfortably met in 78737.

Show 71 more good fit varieties

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

Show 22 more marginal varieties

How many chill hours does 78737 get?: 78737 averages 573 chill hours per winter, ranging from 280 to 824 across the last 10 years.
What hardiness zone is 78737?: 78737 is in USDA hardiness zone 8b.

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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