How many chill hours does 70427 get?

70427 averages 574 chill hours per winter, ranging from 335 to 742 across the last 10 years.

What hardiness zone is 70427?

70427 is in USDA hardiness zone 9a.

Location almanac

The short answer

70427 averages 574 chill hours per winter (335–742 across 10 years) in USDA zone 9a.

70427 climate
Average chill hours	574 (335–742 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically January 31 – March 13
First fall frost	typically November 13 – December 7

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 70427’s chill hours and zone:

Chill and zone requirements are comfortably met in 70427.

Show 48 more good fit varieties

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

How many chill hours does 70427 get?: 70427 averages 574 chill hours per winter, ranging from 335 to 742 across the last 10 years.
What hardiness zone is 70427?: 70427 is in USDA hardiness zone 9a.

Growing fruit trees in 70427? 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