How many chill hours does 81243 get?

81243 averages 934 chill hours per winter, ranging from 679 to 1209 across the last 10 years.

What hardiness zone is 81243?

81243 is in USDA hardiness zone 5b.

Location almanac

The short answer

81243 averages 934 chill hours per winter (679–1,209 across 10 years) in USDA zone 5b.

81243 climate
Average chill hours	934 (679–1,209 across 10 winters)
USDA hardiness zone	5b
Last spring frost	typically June 2 – June 24
First fall frost	typically September 12 – September 25

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 81243’s chill hours and zone:

Chill and zone requirements are comfortably met in 81243.

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 81243 get?: 81243 averages 934 chill hours per winter, ranging from 679 to 1209 across the last 10 years.
What hardiness zone is 81243?: 81243 is in USDA hardiness zone 5b.

Growing fruit trees in 81243? 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