How many chill hours does 71023 get?

71023 averages 746 chill hours per winter, ranging from 413 to 996 across the last 10 years.

What hardiness zone is 71023?

71023 is in USDA hardiness zone 8b.

Location almanac

The short answer

71023 averages 746 chill hours per winter (413–996 across 10 years) in USDA zone 8b.

71023 climate
Average chill hours	746 (413–996 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically January 21 – March 7
First fall frost	typically November 12 – 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 71023’s chill hours and zone:

Chill and zone requirements are comfortably met in 71023.

Show 95 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 71023 get?: 71023 averages 746 chill hours per winter, ranging from 413 to 996 across the last 10 years.
What hardiness zone is 71023?: 71023 is in USDA hardiness zone 8b.

Growing fruit trees in 71023? 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