The Graham 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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84° on Nov. 14, 1999, the hottest reading for this week of the year since 1894. Next is 80° in 1988.
Graham’s center stands about 960 ft above sea level. Within three miles the land runs from 860 ft to 1,040 ft, a difference of 180 ft: gently rolling country.
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 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, siltstone, sandstone. Age: Carboniferous, 299 to 324 million years old. About 15 mi of the line.
Limestone, shale. Age: Carboniferous, 299 to 324 million years old. About 9 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 Graham reaches the Gulf of America by way of Elkhorn Creek, the Missouri and the Mississippi: about 1,650 river miles.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Graham; river miles along the main stem, rounded.
Graham has a hot-summer humid continental climate. Summer afternoons average 87° in July; winter nights fall to about 14° in January. A normal year brings about 15 inches of snow; with the rain, that comes to about 38 inches of water.
On November 14 Graham normally reaches 51° and falls to 30°. The record high is 84°, in 1999; the record low −1°, in 1986. The most rain on this date, 1.32 in, fell in 1931.
Normals 1991–2020 and records since 1894 at Maryville 2 E, 15 miles northeast. NOAA, through RCC-ACIS.
