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Chill hours in 55049

The short answer

55049 averages 1,175 chill hours per winter (9431,452 across 10 years) in USDA zone 4b.
55049 climate
Average chill hours1,175 (943–1,452 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 26 – May 13
First fall frosttypically October 14 – November 19

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 55049’s chill hours and zone:

How many chill hours does 55049 get?
55049 averages 1175 chill hours per winter, ranging from 943 to 1452 across the last 10 years.
What hardiness zone is 55049?
55049 is in USDA hardiness zone 4b.

Growing fruit trees in 55049? 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