How many chill hours does 98623 get?

98623 averages 2503 chill hours per winter, ranging from 1952 to 2753 across the last 10 years.

What hardiness zone is 98623?

98623 is in USDA hardiness zone 8a.

Location almanac

The short answer

98623 averages 2,503 chill hours per winter (1,952–2,753 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 98623’s chill hours and zone:

Chill and zone requirements are comfortably met in 98623.

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How many chill hours does 98623 get?: 98623 averages 2503 chill hours per winter, ranging from 1952 to 2753 across the last 10 years.
What hardiness zone is 98623?: 98623 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