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Chill hours in 59072

The short answer

59072 averages 1,522 chill hours per winter (1,1701,764 across 10 years) in USDA zone 4b.
59072 climate
Average chill hours1,522 (1,170–1,764 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 24 – May 19
First fall frosttypically October 4 – October 29

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 59072’s chill hours and zone:

How many chill hours does 59072 get?
59072 averages 1522 chill hours per winter, ranging from 1170 to 1764 across the last 10 years.
What hardiness zone is 59072?
59072 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