How many chill hours does 77855 get?

77855 averages 616 chill hours per winter, ranging from 264 to 888 across the last 10 years.

What hardiness zone is 77855?

77855 is in USDA hardiness zone 8b.

Location almanac

The short answer

77855 averages 616 chill hours per winter (264–888 across 10 years) in USDA zone 8b.

77855 climate
Average chill hours	616 (264–888 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically January 28 – March 7
First fall frost	typically November 1 – 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 77855’s chill hours and zone:

Chill and zone requirements are comfortably met in 77855.

Show 78 more good fit varieties

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

Show 15 more marginal varieties

How many chill hours does 77855 get?: 77855 averages 616 chill hours per winter, ranging from 264 to 888 across the last 10 years.
What hardiness zone is 77855?: 77855 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