How many chill hours does 99159 get?

99159 averages 1937 chill hours per winter, ranging from 1422 to 2452 across the last 10 years.

What hardiness zone is 99159?

99159 is in USDA hardiness zone 6b.

Location almanac

The short answer

99159 averages 1,937 chill hours per winter (1,422–2,452 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 99159’s chill hours and zone:

Chill and zone requirements are comfortably met in 99159.

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How many chill hours does 99159 get?: 99159 averages 1937 chill hours per winter, ranging from 1422 to 2452 across the last 10 years.
What hardiness zone is 99159?: 99159 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