How many chill hours does 20670 get?

20670 averages 1582 chill hours per winter, ranging from 1161 to 1975 across the last 10 years.

What hardiness zone is 20670?

20670 is in USDA hardiness zone 8a.

Location almanac

The short answer

20670 averages 1,582 chill hours per winter (1,161–1,975 across 10 years) in USDA zone 8a.

20670 climate
Average chill hours	1,582 (1,161–1,975 across 10 winters)
USDA hardiness zone	8a
Last spring frost	typically March 1 – March 29
First fall frost	typically November 13 – December 18

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 20670’s chill hours and zone:

Chill and zone requirements are comfortably met in 20670.

Show 129 more good fit varieties

How many chill hours does 20670 get?: 20670 averages 1582 chill hours per winter, ranging from 1161 to 1975 across the last 10 years.
What hardiness zone is 20670?: 20670 is in USDA hardiness zone 8a.

Growing fruit trees in 20670? 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