How many chill hours does 85147 get?

85147 averages 423 chill hours per winter, ranging from 273 to 662 across the last 10 years.

What hardiness zone is 85147?

85147 is in USDA hardiness zone 9a.

Location almanac

The short answer

85147 averages 423 chill hours per winter (273–662 across 10 years) in USDA zone 9a.

85147 climate
Average chill hours	423 (273–662 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 4 – February 16
First fall frost	typically November 30 – 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 85147’s chill hours and zone:

Chill and zone requirements are comfortably met in 85147.

Show 34 more good fit varieties

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

How many chill hours does 85147 get?: 85147 averages 423 chill hours per winter, ranging from 273 to 662 across the last 10 years.
What hardiness zone is 85147?: 85147 is in USDA hardiness zone 9a.

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[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