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Chill hours in 13652

The short answer

13652 averages 1,448 chill hours per winter (1,1511,746 across 10 years) in USDA zone 4b.
13652 climate
Average chill hours1,448 (1,151–1,746 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 13652’s chill hours and zone:

How many chill hours does 13652 get?
13652 averages 1448 chill hours per winter, ranging from 1151 to 1746 across the last 10 years.
What hardiness zone is 13652?
13652 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