How many chill hours does 97045 get?

97045 averages 2122 chill hours per winter, ranging from 1883 to 2429 across the last 10 years.

What hardiness zone is 97045?

97045 is in USDA hardiness zone 9a.

Location almanac

The short answer

97045 averages 2,122 chill hours per winter (1,883–2,429 across 10 years) in USDA zone 9a.

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 97045’s chill hours and zone:

Chill and zone requirements are comfortably met in 97045.

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How many chill hours does 97045 get?: 97045 averages 2122 chill hours per winter, ranging from 1883 to 2429 across the last 10 years.
What hardiness zone is 97045?: 97045 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