How many chill hours does 99691 get?

99691 averages 936 chill hours per winter, ranging from 656 to 1312 across the last 10 years.

What hardiness zone is 99691?

99691 is in USDA hardiness zone 2b.

Location almanac

The short answer

99691 averages 936 chill hours per winter (656–1,312 across 10 years) in USDA zone 2b.

99691 climate
Average chill hours	936 (656–1,312 across 10 winters)
USDA hardiness zone	2b
Last spring frost	typically May 4 – May 18
First fall frost	typically September 19 – October 11

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 99691’s chill hours and zone:

Chill and zone requirements are comfortably met in 99691.

Show 28 more good fit varieties

How many chill hours does 99691 get?: 99691 averages 936 chill hours per winter, ranging from 656 to 1312 across the last 10 years.
What hardiness zone is 99691?: 99691 is in USDA hardiness zone 2b.

Growing fruit trees in 99691? 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