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Chill hours in 12886

The short answer

12886 averages 1,449 chill hours per winter (1,1681,828 across 10 years) in USDA zone 4b.
12886 climate
Average chill hours1,449 (1,168–1,828 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 26 – May 14
First fall frosttypically October 17 – October 31

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 12886’s chill hours and zone:

How many chill hours does 12886 get?
12886 averages 1449 chill hours per winter, ranging from 1168 to 1828 across the last 10 years.
What hardiness zone is 12886?
12886 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