How many chill hours does 18938 get?

18938 averages 1691 chill hours per winter, ranging from 1374 to 2008 across the last 10 years.

What hardiness zone is 18938?

18938 is in USDA hardiness zone 7a.

Location almanac

The short answer

18938 averages 1,691 chill hours per winter (1,374–2,008 across 10 years) in USDA zone 7a.

18938 climate
Average chill hours	1,691 (1,374–2,008 across 10 winters)
USDA hardiness zone	7a
Last spring frost	typically March 30 – April 22
First fall frost	typically November 1 – November 17

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 18938’s chill hours and zone:

Chill and zone requirements are comfortably met in 18938.

Show 131 more good fit varieties

How many chill hours does 18938 get?: 18938 averages 1691 chill hours per winter, ranging from 1374 to 2008 across the last 10 years.
What hardiness zone is 18938?: 18938 is in USDA hardiness zone 7a.

Growing fruit trees in 18938? Get a care calendar anchored to this exact climate, with email reminders.

[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