How many chill hours does 71497 get?

71497 averages 686 chill hours per winter, ranging from 350 to 843 across the last 10 years.

What hardiness zone is 71497?

71497 is in USDA hardiness zone 9a.

Location almanac

The short answer

71497 averages 686 chill hours per winter (350–843 across 10 years) in USDA zone 9a.

71497 climate
Average chill hours	686 (350–843 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 25 – March 13
First fall frost	typically November 15 – December 11

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 71497’s chill hours and zone:

Chill and zone requirements are comfortably met in 71497.

Show 55 more good fit varieties

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

How many chill hours does 71497 get?: 71497 averages 686 chill hours per winter, ranging from 350 to 843 across the last 10 years.
What hardiness zone is 71497?: 71497 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