How many chill hours does 21904 get?

21904 averages 1725 chill hours per winter, ranging from 1375 to 1980 across the last 10 years.

What hardiness zone is 21904?

21904 is in USDA hardiness zone 7a.

Location almanac

The short answer

21904 averages 1,725 chill hours per winter (1,375–1,980 across 10 years) in USDA zone 7a.

21904 climate
Average chill hours	1,725 (1,375–1,980 across 10 winters)
USDA hardiness zone	7a
Last spring frost	typically March 24 – April 9
First fall frost	typically November 10 – November 25

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 21904’s chill hours and zone:

Chill and zone requirements are comfortably met in 21904.

Show 131 more good fit varieties

How many chill hours does 21904 get?: 21904 averages 1725 chill hours per winter, ranging from 1375 to 1980 across the last 10 years.
What hardiness zone is 21904?: 21904 is in USDA hardiness zone 7a.

Growing fruit trees in 21904? 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