Hanson Harbor Boat Launch
About
Hanson Harbor Boat Launch sits on Lake Roosevelt National Recreation Area in eastern Washington, about 12 miles from the town of Wilbur. The National Park Service manages the land, and this site serves as a launch point for getting a boat onto the water within the recreation area. Summer is the warmest and driest stretch. Typical averages from a nearby weather station in Wilbur show July highs around 85°F and lows near 50°F with only a few wet days, while September eases to highs around 75°F.
Launch Details
Managed by
National Park Service
Facts about this place
When to go
Best time to go: May–Sep. The mildest months here, with typical highs of 68–85°F and lows of 39–50°F.
Typical monthly averages (not a forecast) from the Wilbur, WA weather station, 12 mi away. High / low in °F.
- Jan32° high19° low
- Feb38° high21° low
- Mar48° high27° low
- Apr57° high31° low
- May68° high39° low
- Jun75° high44° low
- Jul85° high50° low
- Aug84° high49° low
- Sep75° high42° low
- Oct59° high32° low
- Nov42° high26° low
- Dec32° high20° low
Where it is
- Lake Roosevelt National Recreation Area · National Park Service
- Nearest town
- Wilbur, Washington · 12 mi
Source: NPS Land Resources boundaries; USGS GNIS populated places
Conditions
Active alerts for Lake Roosevelt National Recreation Area as of Oct 9, 2026:
Hawk Creek Area Closed for 2026 Recreation Season
Park Closure · posted Oct 6, 2026
Fall 2026 Prescribed Fire Notice at Lake Roosevelt
Caution · posted Oct 6, 2026
Fort Spokane boat launch & day use open; Campground open with some closures
Park Closure · posted Aug 24, 2026
Source: NPS Alerts API
