How many chill hours does 97520 get?

97520 averages 1888 chill hours per winter, ranging from 1314 to 2205 across the last 10 years.

What hardiness zone is 97520?

97520 is in USDA hardiness zone 8a.

Location almanac

The short answer

97520 averages 1,888 chill hours per winter (1,314–2,205 across 10 years) in USDA zone 8a.

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 97520’s chill hours and zone:

Chill and zone requirements are comfortably met in 97520.

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How many chill hours does 97520 get?: 97520 averages 1888 chill hours per winter, ranging from 1314 to 2205 across the last 10 years.
What hardiness zone is 97520?: 97520 is in USDA hardiness zone 8a.

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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