How many chill hours does 21157 get?

21157 averages 1647 chill hours per winter, ranging from 1338 to 1918 across the last 10 years.

What hardiness zone is 21157?

21157 is in USDA hardiness zone 7a.

Location almanac

The short answer

21157 averages 1,647 chill hours per winter (1,338–1,918 across 10 years) in USDA zone 7a.

21157 climate
Average chill hours	1,647 (1,338–1,918 across 10 winters)
USDA hardiness zone	7a
Last spring frost	typically March 30 – April 28
First fall frost	typically November 2 – November 22

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 21157’s chill hours and zone:

Chill and zone requirements are comfortably met in 21157.

Show 131 more good fit varieties

How many chill hours does 21157 get?: 21157 averages 1647 chill hours per winter, ranging from 1338 to 1918 across the last 10 years.
What hardiness zone is 21157?: 21157 is in USDA hardiness zone 7a.

Growing fruit trees in 21157? 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