Othello, 99344

Potholes State Park

Book on Washington State ParksLakesideDesert / CanyonFishingSwimmingMotor-boating

Availability

Each day shows how many of this campground’s sites are open.

About this spot

Potholes State Park is a 775-acre camping park with 6,000 feet of freshwater shoreline on O'Sullivan Reservoir that welcomes boaters, fishers, and swimmers. This body of water is often confused with the Pothole Lakes themselves, which are a 30- to 45-minute drive from the park. The terrain is desert with freshwater marshes.

Typical weather

Air temperature

Average daily high-low
Average daily high and low air temperature, January through DecemberEach vertical bar shows a monthly average daily high and low in degrees Fahrenheit.38°27°JJanuary: average high 38°F, average low 27°F42°27°FFebruary: average high 42°F, average low 27°F53°34°MMarch: average high 53°F, average low 34°F64°43°AApril: average high 64°F, average low 43°F76°53°MMay: average high 76°F, average low 53°F84°60°JJune: average high 84°F, average low 60°F92°67°JJuly: average high 92°F, average low 67°F91°65°AAugust: average high 91°F, average low 65°F79°56°SSeptember: average high 79°F, average low 56°F64°45°OOctober: average high 64°F, average low 45°F47°34°NNovember: average high 47°F, average low 34°F37°27°DDecember: average high 37°F, average low 27°F

5-year average · Open-Meteo

O'Sullivan Reservoir

Average water temperature
Average water temperature for O'Sullivan Reservoir, January through DecemberEach point shows the monthly average water temperature in degrees Fahrenheit.37°JJanuary: average water temperature 37°F40°FFebruary: average water temperature 40°F49°MMarch: average water temperature 49°F51°AApril: average water temperature 51°F63°MMay: average water temperature 63°F67°JJune: average water temperature 67°F71°JJuly: average water temperature 71°F86°AAugust: average water temperature 86°F55°SSeptember: average water temperature 55°F54°OOctober: average water temperature 54°F44°NNovember: average water temperature 44°F39°DDecember: average water temperature 39°F

Water: Water Quality Portal — 39 field-sample stations