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Chill hours in 55782

The short answer

55782 averages 968 chill hours per winter (6601,300 across 10 years) in USDA zone 3a.
55782 climate
Average chill hours968 (660–1,300 across 10 winters)
USDA hardiness zone3a
Last spring frosttypically May 3 – May 16
First fall frosttypically October 14 – November 2

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 55782’s chill hours and zone:

How many chill hours does 55782 get?
55782 averages 968 chill hours per winter, ranging from 660 to 1300 across the last 10 years.
What hardiness zone is 55782?
55782 is in USDA hardiness zone 3a.

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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