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Chill hours in 55713

The short answer

55713 averages 972 chill hours per winter (6921,295 across 10 years) in USDA zone 3b.
55713 climate
Average chill hours972 (692–1,295 across 10 winters)
USDA hardiness zone3b
Last spring frosttypically April 29 – May 16
First fall frosttypically October 5 – 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 55713’s chill hours and zone:

How many chill hours does 55713 get?
55713 averages 972 chill hours per winter, ranging from 692 to 1295 across the last 10 years.
What hardiness zone is 55713?
55713 is in USDA hardiness zone 3b.

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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