How many chill hours does 98158 get?

98158 averages 2390 chill hours per winter, ranging from 2233 to 2654 across the last 10 years.

What hardiness zone is 98158?

98158 is in USDA hardiness zone 9a.

Location almanac

The short answer

98158 averages 2,390 chill hours per winter (2,233–2,654 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 98158’s chill hours and zone:

Chill and zone requirements are comfortably met in 98158.

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How many chill hours does 98158 get?: 98158 averages 2390 chill hours per winter, ranging from 2233 to 2654 across the last 10 years.
What hardiness zone is 98158?: 98158 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