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Chill hours in 59419

The short answer

59419 averages 1,614 chill hours per winter (1,1901,888 across 10 years) in USDA zone 4b.
59419 climate
Average chill hours1,614 (1,190–1,888 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 29 – May 22
First fall frosttypically September 14 – October 23

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 59419’s chill hours and zone:

How many chill hours does 59419 get?
59419 averages 1614 chill hours per winter, ranging from 1190 to 1888 across the last 10 years.
What hardiness zone is 59419?
59419 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