How many chill hours does 85621 get?

85621 averages 1016 chill hours per winter, ranging from 685 to 1241 across the last 10 years.

What hardiness zone is 85621?

85621 is in USDA hardiness zone 8b.

Location almanac

The short answer

85621 averages 1,016 chill hours per winter (685–1,241 across 10 years) in USDA zone 8b.

85621 climate
Average chill hours	1,016 (685–1,241 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically February 25 – April 5
First fall frost	typically November 12 – December 22

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 85621’s chill hours and zone:

Chill and zone requirements are comfortably met in 85621.

Show 129 more good fit varieties

How many chill hours does 85621 get?: 85621 averages 1016 chill hours per winter, ranging from 685 to 1241 across the last 10 years.
What hardiness zone is 85621?: 85621 is in USDA hardiness zone 8b.

Growing fruit trees in 85621? 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