How many chill hours does 10975 get?

10975 averages 1655 chill hours per winter, ranging from 1409 to 1911 across the last 10 years.

What hardiness zone is 10975?

10975 is in USDA hardiness zone 6b.

Location almanac

The short answer

10975 averages 1,655 chill hours per winter (1,409–1,911 across 10 years) in USDA zone 6b.

10975 climate
Average chill hours	1,655 (1,409–1,911 across 10 winters)
USDA hardiness zone	6b
Last spring frost	typically April 5 – April 26
First fall frost	typically November 1 – November 15

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 10975’s chill hours and zone:

Chill and zone requirements are comfortably met in 10975.

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How many chill hours does 10975 get?: 10975 averages 1655 chill hours per winter, ranging from 1409 to 1911 across the last 10 years.
What hardiness zone is 10975?: 10975 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