How many chill hours does 81155 get?

81155 averages 909 chill hours per winter, ranging from 634 to 1255 across the last 10 years.

What hardiness zone is 81155?

81155 is in USDA hardiness zone 5b.

Location almanac

The short answer

81155 averages 909 chill hours per winter (634–1,255 across 10 years) in USDA zone 5b.

81155 climate
Average chill hours	909 (634–1,255 across 10 winters)
USDA hardiness zone	5b
Last spring frost	typically June 3 – June 17
First fall frost	typically September 16 – September 24

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 81155’s chill hours and zone:

Chill and zone requirements are comfortably met in 81155.

Show 120 more good fit varieties

Possible in a good year or a favorable microclimate — click through for the caveats.

Marginal varieties for this location
Variety	Fruit
Rome Beauty	Apple
Reliance	Peach

How many chill hours does 81155 get?: 81155 averages 909 chill hours per winter, ranging from 634 to 1255 across the last 10 years.
What hardiness zone is 81155?: 81155 is in USDA hardiness zone 5b.

Growing fruit trees in 81155? 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