How many chill hours does 99625 get?

99625 averages 1710 chill hours per winter, ranging from 1033 to 2466 across the last 10 years.

What hardiness zone is 99625?

99625 is in USDA hardiness zone 4b.

Location almanac

The short answer

99625 averages 1,710 chill hours per winter (1,033–2,466 across 10 years) in USDA zone 4b.

99625 climate
Average chill hours	1,710 (1,033–2,466 across 10 winters)
USDA hardiness zone	4b
Last spring frost	typically May 2 – May 16
First fall frost	typically September 22 – October 16

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 99625’s chill hours and zone:

Chill and zone requirements are comfortably met in 99625.

Show 90 more good fit varieties

How many chill hours does 99625 get?: 99625 averages 1710 chill hours per winter, ranging from 1033 to 2466 across the last 10 years.
What hardiness zone is 99625?: 99625 is in USDA hardiness zone 4b.

Growing fruit trees in 99625? 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