How many chill hours does 21722 get?

21722 averages 1698 chill hours per winter, ranging from 1433 to 1920 across the last 10 years.

What hardiness zone is 21722?

21722 is in USDA hardiness zone 7a.

Location almanac

The short answer

21722 averages 1,698 chill hours per winter (1,433–1,920 across 10 years) in USDA zone 7a.

21722 climate
Average chill hours	1,698 (1,433–1,920 across 10 winters)
USDA hardiness zone	7a
Last spring frost	typically March 26 – April 28
First fall frost	typically November 2 – 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 21722’s chill hours and zone:

Chill and zone requirements are comfortably met in 21722.

Show 131 more good fit varieties

How many chill hours does 21722 get?: 21722 averages 1698 chill hours per winter, ranging from 1433 to 1920 across the last 10 years.
What hardiness zone is 21722?: 21722 is in USDA hardiness zone 7a.

Growing fruit trees in 21722? 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