How many chill hours does 20373 get?

20373 averages 1545 chill hours per winter, ranging from 1208 to 1816 across the last 10 years.

What hardiness zone is 20373?

20373 is in USDA hardiness zone 8a.

Location almanac

The short answer

20373 averages 1,545 chill hours per winter (1,208–1,816 across 10 years) in USDA zone 8a.

20373 climate
Average chill hours	1,545 (1,208–1,816 across 10 winters)
USDA hardiness zone	8a
Last spring frost	typically March 21 – April 8
First fall frost	typically November 11 – December 1

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 20373’s chill hours and zone:

Chill and zone requirements are comfortably met in 20373.

Show 129 more good fit varieties

How many chill hours does 20373 get?: 20373 averages 1545 chill hours per winter, ranging from 1208 to 1816 across the last 10 years.
What hardiness zone is 20373?: 20373 is in USDA hardiness zone 8a.

Growing fruit trees in 20373? 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