How many chill hours does 85610 get?

85610 averages 1092 chill hours per winter, ranging from 787 to 1293 across the last 10 years.

What hardiness zone is 85610?

85610 is in USDA hardiness zone 8b.

Location almanac

The short answer

85610 averages 1,092 chill hours per winter (787–1,293 across 10 years) in USDA zone 8b.

85610 climate
Average chill hours	1,092 (787–1,293 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically February 25 – April 5
First fall frost	typically November 8 – December 8

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 85610’s chill hours and zone:

Chill and zone requirements are comfortably met in 85610.

Show 129 more good fit varieties

How many chill hours does 85610 get?: 85610 averages 1092 chill hours per winter, ranging from 787 to 1293 across the last 10 years.
What hardiness zone is 85610?: 85610 is in USDA hardiness zone 8b.

Growing fruit trees in 85610? 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