How many chill hours does 99704 get?

99704 averages 746 chill hours per winter, ranging from 476 to 1079 across the last 10 years.

What hardiness zone is 99704?

99704 is in USDA hardiness zone 2a.

Location almanac

The short answer

99704 averages 746 chill hours per winter (476–1,079 across 10 years) in USDA zone 2a.

99704 climate
Average chill hours	746 (476–1,079 across 10 winters)
USDA hardiness zone	2a
Last spring frost	typically April 30 – May 17
First fall frost	typically September 21 – September 30

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 99704’s chill hours and zone:

Chill and zone requirements are comfortably met in 99704.

Show 11 more good fit varieties

Possible in a good year or a favorable microclimate — click through for the caveats.

How many chill hours does 99704 get?: 99704 averages 746 chill hours per winter, ranging from 476 to 1079 across the last 10 years.
What hardiness zone is 99704?: 99704 is in USDA hardiness zone 2a.

Growing fruit trees in 99704? 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