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Chill hours in 58053

The short answer

58053 averages 1,091 chill hours per winter (6661,389 across 10 years) in USDA zone 4b.
58053 climate
Average chill hours1,091 (666–1,389 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 23 – May 10
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 58053’s chill hours and zone:

How many chill hours does 58053 get?
58053 averages 1091 chill hours per winter, ranging from 666 to 1389 across the last 10 years.
What hardiness zone is 58053?
58053 is in USDA hardiness zone 4b.

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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