How many chill hours does 21220 get?

21220 averages 1688 chill hours per winter, ranging from 1340 to 1956 across the last 10 years.

What hardiness zone is 21220?

21220 is in USDA hardiness zone 8a.

Location almanac

The short answer

21220 averages 1,688 chill hours per winter (1,340–1,956 across 10 years) in USDA zone 8a.

21220 climate
Average chill hours	1,688 (1,340–1,956 across 10 winters)
USDA hardiness zone	8a
Last spring frost	typically March 23 – April 11
First fall frost	typically November 11 – December 10

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 21220’s chill hours and zone:

Chill and zone requirements are comfortably met in 21220.

Show 129 more good fit varieties

How many chill hours does 21220 get?: 21220 averages 1688 chill hours per winter, ranging from 1340 to 1956 across the last 10 years.
What hardiness zone is 21220?: 21220 is in USDA hardiness zone 8a.

Growing fruit trees in 21220? 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