How many chill hours does 25917 get?

25917 averages 1438 chill hours per winter, ranging from 1162 to 1753 across the last 10 years.

What hardiness zone is 25917?

25917 is in USDA hardiness zone 6b.

Location almanac

The short answer

25917 averages 1,438 chill hours per winter (1,162–1,753 across 10 years) in USDA zone 6b.

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 25917’s chill hours and zone:

Chill and zone requirements are comfortably met in 25917.

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How many chill hours does 25917 get?: 25917 averages 1438 chill hours per winter, ranging from 1162 to 1753 across the last 10 years.
What hardiness zone is 25917?: 25917 is in USDA hardiness zone 6b.

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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