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Chill hours in 59036

The short answer

59036 averages 1,519 chill hours per winter (1,0941,693 across 10 years) in USDA zone 4b.
59036 climate
Average chill hours1,519 (1,094–1,693 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically May 2 – May 22
First fall frosttypically September 25 – October 24

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 59036’s chill hours and zone:

How many chill hours does 59036 get?
59036 averages 1519 chill hours per winter, ranging from 1094 to 1693 across the last 10 years.
What hardiness zone is 59036?
59036 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