How many chill hours does 99841 get?

99841 averages 2077 chill hours per winter, ranging from 1540 to 2806 across the last 10 years.

What hardiness zone is 99841?

99841 is in USDA hardiness zone 7a.

Location almanac

The short answer

99841 averages 2,077 chill hours per winter (1,540–2,806 across 10 years) in USDA zone 7a.

99841 climate
Average chill hours	2,077 (1,540–2,806 across 10 winters)
USDA hardiness zone	7a
Last spring frost	typically May 9 – May 18
First fall frost	typically September 28 – October 21

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 99841’s chill hours and zone:

Chill and zone requirements are comfortably met in 99841.

Show 131 more good fit varieties

How many chill hours does 99841 get?: 99841 averages 2077 chill hours per winter, ranging from 1540 to 2806 across the last 10 years.
What hardiness zone is 99841?: 99841 is in USDA hardiness zone 7a.

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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