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Chill hours in 58313

The short answer

58313 averages 989 chill hours per winter (5581,233 across 10 years) in USDA zone 4a.
58313 climate
Average chill hours989 (558–1,233 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 24 – May 13
First fall frosttypically October 7 – October 26

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 58313’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
ReliancePeach
How many chill hours does 58313 get?
58313 averages 989 chill hours per winter, ranging from 558 to 1233 across the last 10 years.
What hardiness zone is 58313?
58313 is in USDA hardiness zone 4a.

Growing fruit trees in 58313? 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