How many chill hours does 98305 get?

98305 averages 2697 chill hours per winter, ranging from 2325 to 2997 across the last 10 years.

What hardiness zone is 98305?

98305 is in USDA hardiness zone 8b.

Location almanac

The short answer

98305 averages 2,697 chill hours per winter (2,325–2,997 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 98305’s chill hours and zone:

Chill and zone requirements are comfortably met in 98305.

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How many chill hours does 98305 get?: 98305 averages 2697 chill hours per winter, ranging from 2325 to 2997 across the last 10 years.
What hardiness zone is 98305?: 98305 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