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Chill hours in 58239

The short answer

58239 averages 885 chill hours per winter (5421,222 across 10 years) in USDA zone 3b.
58239 climate
Average chill hours885 (542–1,222 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 58239’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 58239 get?
58239 averages 885 chill hours per winter, ranging from 542 to 1222 across the last 10 years.
What hardiness zone is 58239?
58239 is in USDA hardiness zone 3b.

Growing fruit trees in 58239? Get a care calendar anchored to this exact climate, with email reminders.

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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