How many chill hours does 98438 get?

98438 averages 2316 chill hours per winter, ranging from 2084 to 2564 across the last 10 years.

What hardiness zone is 98438?

98438 is in USDA hardiness zone 8b.

Location almanac

The short answer

98438 averages 2,316 chill hours per winter (2,084–2,564 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 98438’s chill hours and zone:

Chill and zone requirements are comfortably met in 98438.

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How many chill hours does 98438 get?: 98438 averages 2316 chill hours per winter, ranging from 2084 to 2564 across the last 10 years.
What hardiness zone is 98438?: 98438 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