How many chill hours does 12439 get?

12439 averages 1360 chill hours per winter, ranging from 1118 to 1776 across the last 10 years.

What hardiness zone is 12439?

12439 is in USDA hardiness zone 5b.

Location almanac

The short answer

12439 averages 1,360 chill hours per winter (1,118–1,776 across 10 years) in USDA zone 5b.

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 12439’s chill hours and zone:

Chill and zone requirements are comfortably met in 12439.

Show 122 more good fit varieties

How many chill hours does 12439 get?: 12439 averages 1360 chill hours per winter, ranging from 1118 to 1776 across the last 10 years.
What hardiness zone is 12439?: 12439 is in USDA hardiness zone 5b.

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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