How many chill hours does 13641 get?

13641 averages 1606 chill hours per winter, ranging from 1309 to 1931 across the last 10 years.

What hardiness zone is 13641?

13641 is in USDA hardiness zone 5b.

Location almanac

The short answer

13641 averages 1,606 chill hours per winter (1,309–1,931 across 10 years) in USDA zone 5b.

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 13641’s chill hours and zone:

Chill and zone requirements are comfortably met in 13641.

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How many chill hours does 13641 get?: 13641 averages 1606 chill hours per winter, ranging from 1309 to 1931 across the last 10 years.
What hardiness zone is 13641?: 13641 is in USDA hardiness zone 5b.

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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