How many chill hours does 97403 get?

97403 averages 2016 chill hours per winter, ranging from 1787 to 2284 across the last 10 years.

What hardiness zone is 97403?

97403 is in USDA hardiness zone 8b.

Location almanac

The short answer

97403 averages 2,016 chill hours per winter (1,787–2,284 across 10 years) in USDA zone 8b.

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 97403’s chill hours and zone:

Chill and zone requirements are comfortably met in 97403.

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How many chill hours does 97403 get?: 97403 averages 2016 chill hours per winter, ranging from 1787 to 2284 across the last 10 years.
What hardiness zone is 97403?: 97403 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