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Chill hours in 56313

The short answer

56313 averages 1,109 chill hours per winter (9011,438 across 10 years) in USDA zone 4a.
56313 climate
Average chill hours1,109 (901–1,438 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 25 – April 30
First fall frosttypically October 14 – November 19

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 56313’s chill hours and zone:

How many chill hours does 56313 get?
56313 averages 1109 chill hours per winter, ranging from 901 to 1438 across the last 10 years.
What hardiness zone is 56313?
56313 is in USDA hardiness zone 4a.

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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