How many chill hours does 98177 get?

98177 averages 2290 chill hours per winter, ranging from 2082 to 2674 across the last 10 years.

What hardiness zone is 98177?

98177 is in USDA hardiness zone 9a.

Location almanac

The short answer

98177 averages 2,290 chill hours per winter (2,082–2,674 across 10 years) in USDA zone 9a.

98177 climate
Average chill hours	2,290 (2,082–2,674 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically March 1 – March 11
First fall frost	typically November 18 – December 25

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 98177’s chill hours and zone:

Chill and zone requirements are comfortably met in 98177.

Show 87 more good fit varieties

How many chill hours does 98177 get?: 98177 averages 2290 chill hours per winter, ranging from 2082 to 2674 across the last 10 years.
What hardiness zone is 98177?: 98177 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