How many chill hours does 21146 get?

21146 averages 1627 chill hours per winter, ranging from 1278 to 1912 across the last 10 years.

What hardiness zone is 21146?

21146 is in USDA hardiness zone 8a.

Location almanac

The short answer

21146 averages 1,627 chill hours per winter (1,278–1,912 across 10 years) in USDA zone 8a.

21146 climate
Average chill hours	1,627 (1,278–1,912 across 10 winters)
USDA hardiness zone	8a
Last spring frost	typically March 21 – April 3
First fall frost	typically November 11 – December 6

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 21146’s chill hours and zone:

Chill and zone requirements are comfortably met in 21146.

Show 129 more good fit varieties

How many chill hours does 21146 get?: 21146 averages 1627 chill hours per winter, ranging from 1278 to 1912 across the last 10 years.
What hardiness zone is 21146?: 21146 is in USDA hardiness zone 8a.

Growing fruit trees in 21146? 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