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Chill hours in 13626

The short answer

13626 averages 1,327 chill hours per winter (1,0751,678 across 10 years) in USDA zone 4b.
13626 climate
Average chill hours1,327 (1,075–1,678 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 26 – May 14
First fall frosttypically October 18 – November 4

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 13626’s chill hours and zone:

How many chill hours does 13626 get?
13626 averages 1327 chill hours per winter, ranging from 1075 to 1678 across the last 10 years.
What hardiness zone is 13626?
13626 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