How many chill hours does 21634 get?

21634 averages 1578 chill hours per winter, ranging from 1131 to 1891 across the last 10 years.

What hardiness zone is 21634?

21634 is in USDA hardiness zone 8a.

Location almanac

The short answer

21634 averages 1,578 chill hours per winter (1,131–1,891 across 10 years) in USDA zone 8a.

21634 climate
Average chill hours	1,578 (1,131–1,891 across 10 winters)
USDA hardiness zone	8a
Last spring frost	typically March 2 – March 29
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 21634’s chill hours and zone:

Chill and zone requirements are comfortably met in 21634.

Show 129 more good fit varieties

How many chill hours does 21634 get?: 21634 averages 1578 chill hours per winter, ranging from 1131 to 1891 across the last 10 years.
What hardiness zone is 21634?: 21634 is in USDA hardiness zone 8a.

Growing fruit trees in 21634? 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