The Fredericksburg 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
Partly cloudy
Partly cloudy
Mostly sunny
Showers likely
75° on Nov. 13, 1999, the hottest reading for this week of the year since 1897. Next is 74° in 1953.
Fredericksburg’s center stands about 1,090 ft above sea level. Within three miles the land runs from 1,060 ft to 1,190 ft, a difference of 130 ft: gently rolling country.
Under the town center the state geologic map shows Maquoketa formation (shale, dolostone), from the Late Ordovician, 447 to 454 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.
Shale, dolostone. Age: Late Ordovician, 447 to 454 million years old. About 17 mi of the line.
Dolostone, limestone. Age: Middle Devonian, 384 to 394 million years old. About 7 mi of the line.
Dolostone. Age: Late Ordovician to Silurian, 434 to 447 million years old. About 0.6 mi of the line.
Limestone, dolostone. Age: Middle Devonian to Late Devonian, 374 to 388 million years old. About 0.3 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 Fredericksburg reaches the Gulf of America by way of Marsh Creek, the East Fork Wapsipinicon, the Wapsipinicon and the Mississippi: about 1,700 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Fredericksburg; river miles along the main stem, rounded.
Fredericksburg has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 6° in January. A normal year brings about 38 inches of snow; with the rain, that comes to about 41 inches of water.
On November 14 Fredericksburg normally reaches 44° and falls to 24°. The record high is 70°, in 1990; the record low −8°, in 1959. The most rain on this date, 1.18 in, fell in 1902.
Normals 1991–2020 and records since 1897 at New Hampton, 8 miles northwest. NOAA, through RCC-ACIS.
