How many chill hours does 71203 get?

71203 averages 763 chill hours per winter, ranging from 455 to 954 across the last 10 years.

What hardiness zone is 71203?

71203 is in USDA hardiness zone 8b.

Location almanac

The short answer

71203 averages 763 chill hours per winter (455–954 across 10 years) in USDA zone 8b.

71203 climate
Average chill hours	763 (455–954 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically January 28 – March 13
First fall frost	typically November 15 – December 18

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 71203’s chill hours and zone:

Chill and zone requirements are comfortably met in 71203.

Show 103 more good fit varieties

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

How many chill hours does 71203 get?: 71203 averages 763 chill hours per winter, ranging from 455 to 954 across the last 10 years.
What hardiness zone is 71203?: 71203 is in USDA hardiness zone 8b.

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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