How many chill hours does 37218 get?

37218 averages 1208 chill hours per winter, ranging from 1015 to 1509 across the last 10 years.

What hardiness zone is 37218?

37218 is in USDA hardiness zone 7b.

Location almanac

The short answer

37218 averages 1,208 chill hours per winter (1,015–1,509 across 10 years) in USDA zone 7b.

37218 climate
Average chill hours	1,208 (1,015–1,509 across 10 winters)
USDA hardiness zone	7b
Last spring frost	typically March 8 – April 3
First fall frost	typically November 1 – November 30

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 37218’s chill hours and zone:

Chill and zone requirements are comfortably met in 37218.

Show 131 more good fit varieties

How many chill hours does 37218 get?: 37218 averages 1208 chill hours per winter, ranging from 1015 to 1509 across the last 10 years.
What hardiness zone is 37218?: 37218 is in USDA hardiness zone 7b.

Growing fruit trees in 37218? 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