The Calamus 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.
Mostly sunny
Mostly sunny; warmer
Mostly sunny
Mostly sunny
Partly cloudy
Mostly sunny
Chance of showers
−1° on Nov. 17, 1959, the coldest reading for this week of the year since 1893. Next is 1° in 1986.
Calamus’s center stands about 900 ft above sea level. Within three miles the land runs from 830 ft to 940 ft, a difference of 110 ft: gently rolling country.
Under the town center the state geologic map shows Prairie du Chien Group (dolostone), from the Early Ordovician, 471 to 487 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. 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: Early Ordovician, 471 to 487 million years old. About 8 mi of the line.
Sandstone. Age: Ordovician, 445 to 487 million years old. About 8 mi of the line.
Dolostone. Age: Ordovician, 445 to 487 million years old. About 4 mi of the line.
Sandstone. Age: Cambrian, 487 to 542 million years old. About 3 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.
A raindrop that lands in Calamus reaches the Gulf of America by way of the Crawfish, the Rock River and the Mississippi: about 1,730 river miles.
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 Calamus; river miles along the main stem, rounded.
Calamus 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 43 inches of snow; with the rain, that comes to about 36 inches of water.
On November 14 Calamus normally reaches 44° and falls to 27°. The record high is 70°, in 1971; the record low 9°, in 1976. The most rain on this date, 0.35 in, fell in 1994.
Normals 1991–2020 and records since 1893 at Beaver Dam Wwtp, 5 miles east-northeast. NOAA, through RCC-ACIS.
