How many chill hours does 99919 get?

99919 averages 2878 chill hours per winter, ranging from 2298 to 3317 across the last 10 years.

What hardiness zone is 99919?

99919 is in USDA hardiness zone 7b.

Location almanac

The short answer

99919 averages 2,878 chill hours per winter (2,298–3,317 across 10 years) in USDA zone 7b.

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 99919’s chill hours and zone:

Chill and zone requirements are comfortably met in 99919.

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How many chill hours does 99919 get?: 99919 averages 2878 chill hours per winter, ranging from 2298 to 3317 across the last 10 years.
What hardiness zone is 99919?: 99919 is in USDA hardiness zone 7b.

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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