How many chill hours does 40815 get?

40815 averages 1402 chill hours per winter, ranging from 1144 to 1746 across the last 10 years.

What hardiness zone is 40815?

40815 is in USDA hardiness zone 7a.

Location almanac

The short answer

40815 averages 1,402 chill hours per winter (1,144–1,746 across 10 years) in USDA zone 7a.

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 40815’s chill hours and zone:

Chill and zone requirements are comfortably met in 40815.

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How many chill hours does 40815 get?: 40815 averages 1402 chill hours per winter, ranging from 1144 to 1746 across the last 10 years.
What hardiness zone is 40815?: 40815 is in USDA hardiness zone 7a.

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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