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Chill hours in 59079

The short answer

59079 averages 1,572 chill hours per winter (1,2431,837 across 10 years) in USDA zone 4b.
59079 climate
Average chill hours1,572 (1,243–1,837 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 21 – May 3
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 59079’s chill hours and zone:

How many chill hours does 59079 get?
59079 averages 1572 chill hours per winter, ranging from 1243 to 1837 across the last 10 years.
What hardiness zone is 59079?
59079 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