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Chill hours in 54102

The short answer

54102 averages 1,251 chill hours per winter (9141,608 across 10 years) in USDA zone 4b.
54102 climate
Average chill hours1,251 (914–1,608 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 26 – 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 54102’s chill hours and zone:

How many chill hours does 54102 get?
54102 averages 1251 chill hours per winter, ranging from 914 to 1608 across the last 10 years.
What hardiness zone is 54102?
54102 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