How many chill hours does 99722 get?

99722 averages 484 chill hours per winter, ranging from 267 to 616 across the last 10 years.

What hardiness zone is 99722?

99722 is in USDA hardiness zone 1b.

Location almanac

The short answer

99722 averages 484 chill hours per winter (267–616 across 10 years) in USDA zone 1b.

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 99722’s chill hours and zone:

Chill and zone requirements are comfortably met in 99722.

Possible in a good year or a favorable microclimate — click through for the caveats.

How many chill hours does 99722 get?: 99722 averages 484 chill hours per winter, ranging from 267 to 616 across the last 10 years.
What hardiness zone is 99722?: 99722 is in USDA hardiness zone 1b.

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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