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Chill hours in 54156

The short answer

54156 averages 1,254 chill hours per winter (9251,618 across 10 years) in USDA zone 4b.
54156 climate
Average chill hours1,254 (925–1,618 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 28 – May 14
First fall frosttypically October 13 – November 3

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 54156’s chill hours and zone:

How many chill hours does 54156 get?
54156 averages 1254 chill hours per winter, ranging from 925 to 1618 across the last 10 years.
What hardiness zone is 54156?
54156 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