How many chill hours does 71302 get?

71302 averages 601 chill hours per winter, ranging from 316 to 736 across the last 10 years.

What hardiness zone is 71302?

71302 is in USDA hardiness zone 9a.

Location almanac

The short answer

71302 averages 601 chill hours per winter (316–736 across 10 years) in USDA zone 9a.

71302 climate
Average chill hours	601 (316–736 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 21 – March 13
First fall frost	typically November 15 – December 9

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 71302’s chill hours and zone:

Chill and zone requirements are comfortably met in 71302.

Show 54 more good fit varieties

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

How many chill hours does 71302 get?: 71302 averages 601 chill hours per winter, ranging from 316 to 736 across the last 10 years.
What hardiness zone is 71302?: 71302 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