How many chill hours does 75939 get?

75939 averages 572 chill hours per winter, ranging from 257 to 708 across the last 10 years.

What hardiness zone is 75939?

75939 is in USDA hardiness zone 9a.

Location almanac

The short answer

75939 averages 572 chill hours per winter (257–708 across 10 years) in USDA zone 9a.

75939 climate
Average chill hours	572 (257–708 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 18 – March 6
First fall frost	typically November 12 – December 20

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 75939’s chill hours and zone:

Chill and zone requirements are comfortably met in 75939.

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 75939 get?: 75939 averages 572 chill hours per winter, ranging from 257 to 708 across the last 10 years.
What hardiness zone is 75939?: 75939 is in USDA hardiness zone 9a.

Growing fruit trees in 75939? 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