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Chill hours in 59012

The short answer

59012 averages 1,352 chill hours per winter (8931,514 across 10 years) in USDA zone 4b.
59012 climate
Average chill hours1,352 (893–1,514 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 23 – May 15
First fall frosttypically October 3 – 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 59012’s chill hours and zone:

How many chill hours does 59012 get?
59012 averages 1352 chill hours per winter, ranging from 893 to 1514 across the last 10 years.
What hardiness zone is 59012?
59012 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