How many chill hours does 99783 get?

99783 averages 1153 chill hours per winter, ranging from 848 to 1456 across the last 10 years.

What hardiness zone is 99783?

99783 is in USDA hardiness zone 3b.

Location almanac

The short answer

99783 averages 1,153 chill hours per winter (848–1,456 across 10 years) in USDA zone 3b.

99783 climate
Average chill hours	1,153 (848–1,456 across 10 winters)
USDA hardiness zone	3b
Last spring frost	typically June 2 – June 13
First fall frost	typically September 28 – October 17

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 99783’s chill hours and zone:

Chill and zone requirements are comfortably met in 99783.

Show 41 more good fit varieties

How many chill hours does 99783 get?: 99783 averages 1153 chill hours per winter, ranging from 848 to 1456 across the last 10 years.
What hardiness zone is 99783?: 99783 is in USDA hardiness zone 3b.

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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