How many chill hours does 98039 get?

98039 averages 2350 chill hours per winter, ranging from 2125 to 2637 across the last 10 years.

What hardiness zone is 98039?

98039 is in USDA hardiness zone 9a.

Location almanac

The short answer

98039 averages 2,350 chill hours per winter (2,125–2,637 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 98039’s chill hours and zone:

Chill and zone requirements are comfortably met in 98039.

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How many chill hours does 98039 get?: 98039 averages 2350 chill hours per winter, ranging from 2125 to 2637 across the last 10 years.
What hardiness zone is 98039?: 98039 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