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Chill hours in 58069

The short answer

58069 averages 1,046 chill hours per winter (5531,318 across 10 years) in USDA zone 4a.
58069 climate
Average chill hours1,046 (553–1,318 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 27 – May 19
First fall frosttypically October 7 – October 27

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 58069’s chill hours and zone:

How many chill hours does 58069 get?
58069 averages 1046 chill hours per winter, ranging from 553 to 1318 across the last 10 years.
What hardiness zone is 58069?
58069 is in USDA hardiness zone 4a.

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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