How many chill hours does 77864 get?

77864 averages 587 chill hours per winter, ranging from 247 to 776 across the last 10 years.

What hardiness zone is 77864?

77864 is in USDA hardiness zone 9a.

Location almanac

The short answer

77864 averages 587 chill hours per winter (247–776 across 10 years) in USDA zone 9a.

77864 climate
Average chill hours	587 (247–776 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically February 5 – March 7
First fall frost	typically November 1 – December 18

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 77864’s chill hours and zone:

Chill and zone requirements are comfortably met in 77864.

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 77864 get?: 77864 averages 587 chill hours per winter, ranging from 247 to 776 across the last 10 years.
What hardiness zone is 77864?: 77864 is in USDA hardiness zone 9a.

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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