How many chill hours does 99745 get?

99745 averages 649 chill hours per winter, ranging from 433 to 862 across the last 10 years.

What hardiness zone is 99745?

99745 is in USDA hardiness zone 1b.

Location almanac

The short answer

99745 averages 649 chill hours per winter (433–862 across 10 years) in USDA zone 1b.

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 99745’s chill hours and zone:

Chill and zone requirements are comfortably met in 99745.

Show 5 more good fit varieties

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

How many chill hours does 99745 get?: 99745 averages 649 chill hours per winter, ranging from 433 to 862 across the last 10 years.
What hardiness zone is 99745?: 99745 is in USDA hardiness zone 1b.

Growing fruit trees in 99745? 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