How many chill hours does 13320 get?

13320 averages 1333 chill hours per winter, ranging from 1109 to 1683 across the last 10 years.

What hardiness zone is 13320?

13320 is in USDA hardiness zone 5b.

Location almanac

The short answer

13320 averages 1,333 chill hours per winter (1,109–1,683 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 13320’s chill hours and zone:

Chill and zone requirements are comfortably met in 13320.

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How many chill hours does 13320 get?: 13320 averages 1333 chill hours per winter, ranging from 1109 to 1683 across the last 10 years.
What hardiness zone is 13320?: 13320 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