How many chill hours does 18346 get?

18346 averages 1488 chill hours per winter, ranging from 1253 to 1786 across the last 10 years.

What hardiness zone is 18346?

18346 is in USDA hardiness zone 6a.

Location almanac

The short answer

18346 averages 1,488 chill hours per winter (1,253–1,786 across 10 years) in USDA zone 6a.

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 18346’s chill hours and zone:

Chill and zone requirements are comfortably met in 18346.

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How many chill hours does 18346 get?: 18346 averages 1488 chill hours per winter, ranging from 1253 to 1786 across the last 10 years.
What hardiness zone is 18346?: 18346 is in USDA hardiness zone 6a.

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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