How many chill hours does 98558 get?

98558 averages 2164 chill hours per winter, ranging from 1968 to 2387 across the last 10 years.

What hardiness zone is 98558?

98558 is in USDA hardiness zone 8b.

Location almanac

The short answer

98558 averages 2,164 chill hours per winter (1,968–2,387 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 98558’s chill hours and zone:

Chill and zone requirements are comfortably met in 98558.

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How many chill hours does 98558 get?: 98558 averages 2164 chill hours per winter, ranging from 1968 to 2387 across the last 10 years.
What hardiness zone is 98558?: 98558 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