How many chill hours does 41604 get?

41604 averages 1321 chill hours per winter, ranging from 1119 to 1643 across the last 10 years.

What hardiness zone is 41604?

41604 is in USDA hardiness zone 7a.

Location almanac

The short answer

41604 averages 1,321 chill hours per winter (1,119–1,643 across 10 years) in USDA zone 7a.

41604 climate
Average chill hours	1,321 (1,119–1,643 across 10 winters)
USDA hardiness zone	7a
Last spring frost	typically March 29 – April 23
First fall frost	typically November 1 – November 23

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 41604’s chill hours and zone:

Chill and zone requirements are comfortably met in 41604.

Show 131 more good fit varieties

How many chill hours does 41604 get?: 41604 averages 1321 chill hours per winter, ranging from 1119 to 1643 across the last 10 years.
What hardiness zone is 41604?: 41604 is in USDA hardiness zone 7a.

Growing fruit trees in 41604? 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