How many chill hours does 70630 get?

70630 averages 388 chill hours per winter, ranging from 166 to 508 across the last 10 years.

What hardiness zone is 70630?

70630 is in USDA hardiness zone 9b.

Location almanac

The short answer

70630 averages 388 chill hours per winter (166–508 across 10 years) in USDA zone 9b.

70630 climate
Average chill hours	388 (166–508 across 10 winters)
USDA hardiness zone	9b
Last spring frost	typically January 18 – March 5
First fall frost	typically November 13 – December 23

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 70630’s chill hours and zone:

Chill and zone requirements are comfortably met in 70630.

Show 26 more good fit varieties

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

How many chill hours does 70630 get?: 70630 averages 388 chill hours per winter, ranging from 166 to 508 across the last 10 years.
What hardiness zone is 70630?: 70630 is in USDA hardiness zone 9b.

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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