How many chill hours does 12423 get?

12423 averages 1691 chill hours per winter, ranging from 1418 to 2034 across the last 10 years.

What hardiness zone is 12423?

12423 is in USDA hardiness zone 5b.

Location almanac

The short answer

12423 averages 1,691 chill hours per winter (1,418–2,034 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 12423’s chill hours and zone:

Chill and zone requirements are comfortably met in 12423.

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How many chill hours does 12423 get?: 12423 averages 1691 chill hours per winter, ranging from 1418 to 2034 across the last 10 years.
What hardiness zone is 12423?: 12423 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