How many chill hours does 70801 get?

70801 averages 466 chill hours per winter, ranging from 236 to 602 across the last 10 years.

What hardiness zone is 70801?

70801 is in USDA hardiness zone 9a.

Location almanac

The short answer

70801 averages 466 chill hours per winter (236–602 across 10 years) in USDA zone 9a.

70801 climate
Average chill hours	466 (236–602 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 18 – March 6
First fall frost	typically November 13 – December 27

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 70801’s chill hours and zone:

Chill and zone requirements are comfortably met in 70801.

Show 28 more good fit varieties

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

How many chill hours does 70801 get?: 70801 averages 466 chill hours per winter, ranging from 236 to 602 across the last 10 years.
What hardiness zone is 70801?: 70801 is in USDA hardiness zone 9a.

Growing fruit trees in 70801? Save your first tree free and see this month’s care tasks for this climate.

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[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