The Knightdale 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.
Sunny
Sunny; warmer
Sunny
Partly cloudy
Sunny
Mostly sunny
Mostly sunny
5.70 inches of rain fell in two days, the most for this week of the year since records began in 1955. The next wettest, 5.20 inches, fell in 2009.
Knightdale’s center stands about 320 ft above sea level. Within three miles the land runs from 190 ft to 370 ft, a difference of 180 ft: gently rolling country. The highest named summit within 15 miles is Adam Mountain, about 500 ft, 15 miles northwest.
Under the town center the state geologic map shows Foliated to Massive Granitic Rock, from the Early Pennsylvanian to Permian, 270 to 320 million years old.
The section below crosses 6 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.
Granitic. Age: Early Pennsylvanian to Permian, 270 to 320 million years old. About 15 mi of the line.
Gravel, sand. Age: Tertiary, 2.6 to 66 million years old. About 3 mi of the line.
Gneiss, biotite-schist. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 3 mi of the line.
Biotite-gneiss, mica-schist, amphibolite. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 1 mi of the line.
Gneiss. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 1 mi of the line.
Gneiss, mica-schist. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 1 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 Knightdale reaches Pamlico Sound and the Atlantic Ocean by way of Mango Creek and the Neuse: about 210 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Knightdale; river miles along the main stem, rounded.
Knightdale has a humid subtropical climate. Summer afternoons average 89° in July; winter nights fall to about 29° in January. About 52 inches of rain fall in a normal year, with about 3 inches of snow.
On November 14 Knightdale normally reaches 63° and falls to 38°. The record high is 79°, in 1989; the record low 21°, in 1986. The most rain on this date, 0.35 in, fell in 2008.
Normals 1991–2020 and records since 1955 at Clayton Wtp, 10 miles south. NOAA, through RCC-ACIS.
