How many chill hours does 98311 get?

98311 averages 2495 chill hours per winter, ranging from 2309 to 2850 across the last 10 years.

What hardiness zone is 98311?

98311 is in USDA hardiness zone 9a.

Location almanac

The short answer

98311 averages 2,495 chill hours per winter (2,309–2,850 across 10 years) in USDA zone 9a.

98311 climate
Average chill hours	2,495 (2,309–2,850 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 14 – April 4
First fall frost	typically November 26 – 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 98311’s chill hours and zone:

Chill and zone requirements are comfortably met in 98311.

Show 87 more good fit varieties

How many chill hours does 98311 get?: 98311 averages 2495 chill hours per winter, ranging from 2309 to 2850 across the last 10 years.
What hardiness zone is 98311?: 98311 is in USDA hardiness zone 9a.

Growing fruit trees in 98311? Get a care calendar anchored to this exact climate, with email reminders.

[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