How many chill hours does 54565 get?

54565 averages 1038 chill hours per winter, ranging from 756 to 1464 across the last 10 years.

What hardiness zone is 54565?

54565 is in USDA hardiness zone 4a.

Location almanac

The short answer

54565 averages 1,038 chill hours per winter (756–1,464 across 10 years) in USDA zone 4a.

54565 climate
Average chill hours	1,038 (756–1,464 across 10 winters)
USDA hardiness zone	4a
Last spring frost	typically May 3 – May 19
First fall frost	typically September 28 – October 28

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 54565’s chill hours and zone:

Chill and zone requirements are comfortably met in 54565.

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How many chill hours does 54565 get?: 54565 averages 1038 chill hours per winter, ranging from 756 to 1464 across the last 10 years.
What hardiness zone is 54565?: 54565 is in USDA hardiness zone 4a.

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[1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
[2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026