How many chill hours does 98506 get?

98506 averages 2246 chill hours per winter, ranging from 1943 to 2557 across the last 10 years.

What hardiness zone is 98506?

98506 is in USDA hardiness zone 8b.

Location almanac

The short answer

98506 averages 2,246 chill hours per winter (1,943–2,557 across 10 years) in USDA zone 8b.

98506 climate
Average chill hours	2,246 (1,943–2,557 across 10 winters)
USDA hardiness zone	8b
Last spring frost	typically February 28 – March 27
First fall frost	typically November 16 – 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 98506’s chill hours and zone:

Chill and zone requirements are comfortably met in 98506.

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How many chill hours does 98506 get?: 98506 averages 2246 chill hours per winter, ranging from 1943 to 2557 across the last 10 years.
What hardiness zone is 98506?: 98506 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