How many chill hours does 85542 get?

85542 averages 1126 chill hours per winter, ranging from 723 to 1455 across the last 10 years.

What hardiness zone is 85542?

85542 is in USDA hardiness zone 9a.

Location almanac

The short answer

85542 averages 1,126 chill hours per winter (723–1,455 across 10 years) in USDA zone 9a.

85542 climate
Average chill hours	1,126 (723–1,455 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically February 25 – March 28
First fall frost	typically November 12 – 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 85542’s chill hours and zone:

Chill and zone requirements are comfortably met in 85542.

Show 87 more good fit varieties

How many chill hours does 85542 get?: 85542 averages 1126 chill hours per winter, ranging from 723 to 1455 across the last 10 years.
What hardiness zone is 85542?: 85542 is in USDA hardiness zone 9a.

Growing fruit trees in 85542? 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