How many chill hours does 85545 get?

85545 averages 1099 chill hours per winter, ranging from 685 to 1473 across the last 10 years.

What hardiness zone is 85545?

85545 is in USDA hardiness zone 9b.

Location almanac

The short answer

85545 averages 1,099 chill hours per winter (685–1,473 across 10 years) in USDA zone 9b.

85545 climate
Average chill hours	1,099 (685–1,473 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically February 6 – March 14
First fall frost	typically December 1 – December 13

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 85545’s chill hours and zone:

Chill and zone requirements are comfortably met in 85545.

Show 87 more good fit varieties

How many chill hours does 85545 get?: 85545 averages 1099 chill hours per winter, ranging from 685 to 1473 across the last 10 years.
What hardiness zone is 85545?: 85545 is in USDA hardiness zone 9b.

Growing fruit trees in 85545? 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