How many chill hours does 85552 get?

85552 averages 676 chill hours per winter, ranging from 383 to 946 across the last 10 years.

What hardiness zone is 85552?

85552 is in USDA hardiness zone 8b.

Location almanac

The short answer

85552 averages 676 chill hours per winter (383–946 across 10 years) in USDA zone 8b.

85552 climate
Average chill hours	676 (383–946 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically January 23 – February 24
First fall frost	typically December 13 – December 29

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 85552’s chill hours and zone:

Chill and zone requirements are comfortably met in 85552.

Show 79 more good fit varieties

Possible in a good year or a favorable microclimate — click through for the caveats.

Show 18 more marginal varieties

How many chill hours does 85552 get?: 85552 averages 676 chill hours per winter, ranging from 383 to 946 across the last 10 years.
What hardiness zone is 85552?: 85552 is in USDA hardiness zone 8b.

Growing fruit trees in 85552? 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