How many chill hours does 13620 get?

13620 averages 1495 chill hours per winter, ranging from 1181 to 1830 across the last 10 years.

What hardiness zone is 13620?

13620 is in USDA hardiness zone 4b.

Location almanac

The short answer

13620 averages 1,495 chill hours per winter (1,181–1,830 across 10 years) in USDA zone 4b.

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 13620’s chill hours and zone:

Chill and zone requirements are comfortably met in 13620.

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How many chill hours does 13620 get?: 13620 averages 1495 chill hours per winter, ranging from 1181 to 1830 across the last 10 years.
What hardiness zone is 13620?: 13620 is in USDA hardiness zone 4b.

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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