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Chill hours in 52155

The short answer

52155 averages 1,244 chill hours per winter (1,0951,490 across 10 years) in USDA zone 4b.
52155 climate
Average chill hours1,244 (1,095–1,490 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 25 – May 13
First fall frosttypically October 12 – October 27

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 52155’s chill hours and zone:

How many chill hours does 52155 get?
52155 averages 1244 chill hours per winter, ranging from 1095 to 1490 across the last 10 years.
What hardiness zone is 52155?
52155 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