How many chill hours does 70721 get?

70721 averages 424 chill hours per winter, ranging from 210 to 561 across the last 10 years.

What hardiness zone is 70721?

70721 is in USDA hardiness zone 9a.

Location almanac

The short answer

70721 averages 424 chill hours per winter (210–561 across 10 years) in USDA zone 9a.

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 70721’s chill hours and zone:

Chill and zone requirements are comfortably met in 70721.

Show 34 more good fit varieties

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

How many chill hours does 70721 get?: 70721 averages 424 chill hours per winter, ranging from 210 to 561 across the last 10 years.
What hardiness zone is 70721?: 70721 is in USDA hardiness zone 9a.

Growing fruit trees in 70721? 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