Skip to content
EveryOrchard
Menu

Location almanac

Chill hours in 58229

The short answer

58229 averages 871 chill hours per winter (5111,247 across 10 years) in USDA zone 3b.
58229 climate
Average chill hours871 (511–1,247 across 10 winters)
USDA hardiness zone3b
Last spring frosttypically May 1 – May 27
First fall frosttypically October 7 – October 16

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 58229’s chill hours and zone:

Marginal (1)

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

Marginal varieties for this location
VarietyFruit
CresthavenPeach
How many chill hours does 58229 get?
58229 averages 871 chill hours per winter, ranging from 511 to 1247 across the last 10 years.
What hardiness zone is 58229?
58229 is in USDA hardiness zone 3b.

Growing fruit trees in 58229? Get a care calendar anchored to this exact climate, with email reminders.

Start My Orchard

Sources

  1. [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
  2. [2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026