How many chill hours does 18964 get?

18964 averages 1678 chill hours per winter, ranging from 1385 to 1980 across the last 10 years.

What hardiness zone is 18964?

18964 is in USDA hardiness zone 7a.

Location almanac

The short answer

18964 averages 1,678 chill hours per winter (1,385–1,980 across 10 years) in USDA zone 7a.

18964 climate
Average chill hours	1,678 (1,385–1,980 across 10 winters)
USDA hardiness zone	7a
Last spring frost	typically March 30 – April 22
First fall frost	typically November 1 – November 16

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 18964’s chill hours and zone:

Chill and zone requirements are comfortably met in 18964.

Show 131 more good fit varieties

How many chill hours does 18964 get?: 18964 averages 1678 chill hours per winter, ranging from 1385 to 1980 across the last 10 years.
What hardiness zone is 18964?: 18964 is in USDA hardiness zone 7a.

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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