How many chill hours does 58318 get?

58318 averages 928 chill hours per winter, ranging from 568 to 1226 across the last 10 years.

What hardiness zone is 58318?

58318 is in USDA hardiness zone 3b.

Location almanac

The short answer

58318 averages 928 chill hours per winter (568–1,226 across 10 years) in USDA zone 3b.

58318 climate
Average chill hours	928 (568–1,226 across 10 winters)
USDA hardiness zone	3b
Last spring frost	typically May 1 – May 21
First fall frost	typically September 28 – October 17

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 58318’s chill hours and zone:

Chill and zone requirements are comfortably met in 58318.

Show 41 more good fit varieties

How many chill hours does 58318 get?: 58318 averages 928 chill hours per winter, ranging from 568 to 1226 across the last 10 years.
What hardiness zone is 58318?: 58318 is in USDA hardiness zone 3b.

Growing fruit trees in 58318? 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