How many chill hours does 99743 get?

99743 averages 808 chill hours per winter, ranging from 631 to 1157 across the last 10 years.

What hardiness zone is 99743?

99743 is in USDA hardiness zone 2a.

Location almanac

The short answer

99743 averages 808 chill hours per winter (631–1,157 across 10 years) in USDA zone 2a.

99743 climate
Average chill hours	808 (631–1,157 across 10 winters)
USDA hardiness zone	2a
Last spring frost	typically May 6 – May 29
First fall frost	typically September 9 – September 27

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 99743’s chill hours and zone:

Chill and zone requirements are comfortably met in 99743.

Show 27 more good fit varieties

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

Marginal varieties for this location
Variety	Fruit
Cresthaven	Peach

How many chill hours does 99743 get?: 99743 averages 808 chill hours per winter, ranging from 631 to 1157 across the last 10 years.
What hardiness zone is 99743?: 99743 is in USDA hardiness zone 2a.

Growing fruit trees in 99743? Get a care calendar anchored to this exact climate, with email reminders.

[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