How many chill hours does 18930 get?

18930 averages 1689 chill hours per winter, ranging from 1370 to 1986 across the last 10 years.

What hardiness zone is 18930?

18930 is in USDA hardiness zone 6b.

Location almanac

The short answer

18930 averages 1,689 chill hours per winter (1,370–1,986 across 10 years) in USDA zone 6b.

18930 climate
Average chill hours	1,689 (1,370–1,986 across 10 winters)
USDA hardiness zone	6b
Last spring frost	typically March 30 – April 22
First fall frost	typically November 1 – November 15

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 18930’s chill hours and zone:

Chill and zone requirements are comfortably met in 18930.

Show 126 more good fit varieties

How many chill hours does 18930 get?: 18930 averages 1689 chill hours per winter, ranging from 1370 to 1986 across the last 10 years.
What hardiness zone is 18930?: 18930 is in USDA hardiness zone 6b.

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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