How many chill hours does 21661 get?

21661 averages 1671 chill hours per winter, ranging from 1275 to 1951 across the last 10 years.

What hardiness zone is 21661?

21661 is in USDA hardiness zone 8a.

Location almanac

The short answer

21661 averages 1,671 chill hours per winter (1,275–1,951 across 10 years) in USDA zone 8a.

21661 climate
Average chill hours	1,671 (1,275–1,951 across 10 winters)
USDA hardiness zone	8a
Last spring frost	typically March 7 – March 30
First fall frost	typically November 11 – December 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 21661’s chill hours and zone:

Chill and zone requirements are comfortably met in 21661.

Show 129 more good fit varieties

How many chill hours does 21661 get?: 21661 averages 1671 chill hours per winter, ranging from 1275 to 1951 across the last 10 years.
What hardiness zone is 21661?: 21661 is in USDA hardiness zone 8a.

Growing fruit trees in 21661? 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