The Slinger plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.
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72° on Nov. 11, 2022, the hottest reading for this week of the year since 1893. Next is 69° in 1964.
Slinger’s center stands about 1,060 ft above sea level. Within three miles the land runs from 990 ft to 1,230 ft, a difference of 240 ft: rolling country. The highest named summit within 15 miles is Holy Hill, about 1,350 ft, 6 miles south-southwest.
Under the town center the state geologic map shows Silurian, undivided (dolostone), from the Silurian, 422 to 445 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 51×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Dolostone. Age: Silurian, 422 to 445 million years old. About 15 mi of the line.
Shale, dolostone. Age: Ordovician, 445 to 487 million years old. About 10 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.
Slinger straddles the St. Lawrence Divide. Rain on the northeast side runs to Lake Michigan; most of the rest goes to the Gulf of America.
From the center of town, a raindrop reaches the Gulf of America by way of the Rubicon, the Rock River and the Mississippi: about 1,760 river miles. One that lands on the northeast side reaches Lake Michigan by way of Cedar Creek, the Milwaukee and the Kinnickinnic: about 60 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Lake on the way: Lake Koshkonong.
1,450 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Slinger; river miles along the main stem, rounded.
Slinger has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 9° in January. A normal year brings about 36 inches of snow; with the rain, that comes to about 34 inches of water.
On November 14 Slinger normally reaches 44° and falls to 26°. The record high is 69°, in 1999; the record low 5°, in 1995. The most rain on this date, 0.87 in, fell in 1991.
Normals 1991–2020 and records since 1893 at Hartford Wwtp, 6 miles west. NOAA, through RCC-ACIS.
