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Chill hours in 13327

The short answer

13327 averages 1,374 chill hours per winter (1,0941,685 across 10 years) in USDA zone 4b.
13327 climate
Average chill hours1,374 (1,094–1,685 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 29 – May 18
First fall frosttypically October 18 – 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 13327’s chill hours and zone:

How many chill hours does 13327 get?
13327 averages 1374 chill hours per winter, ranging from 1094 to 1685 across the last 10 years.
What hardiness zone is 13327?
13327 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