White Ash Lake
Polk County, Wisconsin · WBIC 2628600
Size
153 acres
Max depth
9 ft
DNR lake type
Complex, Riverine
Water clarity
2 ft
Low, measured Sep 2026
A river-like water type, with flow instead of a still basin. This describes the lake type in general, not this lake in particular.
Outline
Numbered dots are boat landings; tap one for directions. The list below has the same numbers. Drawn from the DNR's 24K hydrography (surveyed 1978), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
2 ft Secchi depthLow
Last measured Sep 11, 2026. 426 readings on record, 1993 to 2026.
Typical summer clarity (June to September): 3 ft, low, from 56 readings (2012 to 2026).
Secchi depth is how far down a white disk stays visible. A bigger number means clearer water. Clear means a Secchi depth of 10 feet or more, moderate 5 to 10 feet, low under 5 feet.
Wisconsin DNR water monitoring (volunteer and staff), via the Water Quality Portal; station WHITE ASH LAKE - DEEP HOLE. Checked Oct 23, 2026.
Water temperature
75.5°F surface, measured Sep 7, 2026
Measured near the surface (0 m down). A single reading, not a daily value.
A typical year Modeled estimate
- Ice goes outabout Apr 13 (Apr 5 to Apr 22)
- Surface reaches 48°Fabout Apr 18 (Apr 12 to Apr 26)
- Surface reaches 64°Fabout May 17 (May 8 to May 24)
- June surface73°F, usually 72 to 74°F
- July surface79°F, usually 77 to 80°F
- August surface74°F, usually 72 to 77°F
Mixes regularly through the summer instead of forming a warm top layer.
A computer model of this lake's typical weather and water, built from 15 years, 2005 to 2019. Ranges show the middle half of years. The model was calibrated against measured temperatures for this lake. It is an estimate, not a measurement.
Measured: Wisconsin DNR via the Water Quality Portal (checked Oct 23, 2026). Modeled: U.S. Geological Survey lake temperature data release (doi:10.5066/P9CA6XP8).
Today at the lake
Forecast: National Weather Service (no endorsement implied). Sunrise, sunset and moon phase are calculated. The moon phase can be a day off.
Boat landings
- 1White Ash Lake - North AccessBoat ramp · Paved surface · Township
Directions - 2White Ash Lake - South AccessBoat ramp · Concrete surface · Township
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
More lakes in Polk County
- White Ash Lake, North1.0 miles away
- Square Lake1.7 miles away
- Beautiful Lake1.9 miles away
- Little Blake Lake3.0 miles away
- Big Blake Lake3.5 miles away
- Clara Lake3.5 miles away
Where this comes from
- Size, depth and lake typeWisconsin DNR lake classifications, checked Oct 23, 2026
- OutlineWisconsin DNR 24K hydrography, checked Oct 23, 2026
- Regulations linkWisconsin DNR fishing regulations (linked, not restated), checked Oct 23, 2026
- Boat landingsWisconsin DNR public boat access sites, checked Oct 23, 2026
- Water clarityWisconsin DNR water monitoring, via the Water Quality Portal, checked Oct 23, 2026
- Measured temperatureWisconsin DNR water monitoring, via the Water Quality Portal, checked Oct 23, 2026
- Typical-year temperatureU.S. Geological Survey lake temperature model (modeled estimate), checked Oct 23, 2026
- VHS statusWisconsin DNR VHS status by watershed, checked Oct 24, 2026
- Depth map linkWisconsin DNR lake maps list, checked Oct 24, 2026
See data sources for what each source covers, and about for how the numbers are matched to lakes.
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