How many chill hours does 98610 get?

98610 averages 2540 chill hours per winter, ranging from 2131 to 2830 across the last 10 years.

What hardiness zone is 98610?

98610 is in USDA hardiness zone 8a.

Location almanac

The short answer

98610 averages 2,540 chill hours per winter (2,131–2,830 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 98610’s chill hours and zone:

Chill and zone requirements are comfortably met in 98610.

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How many chill hours does 98610 get?: 98610 averages 2540 chill hours per winter, ranging from 2131 to 2830 across the last 10 years.
What hardiness zone is 98610?: 98610 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