The Effingham 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.
Partly cloudy
Partly cloudy; warmer
Sunny
Sunny
Partly cloudy
Partly cloudy
Chance of showers
82° on Nov. 13, 1999, the hottest reading for this week of the year since 1891. Next is 79° in 1964.
Effingham’s center stands about 1,130 ft above sea level. Within three miles the land runs from 1,020 ft to 1,140 ft, a difference of 120 ft: gently rolling country.
Under the town center the state geologic map shows Drift (sand, silt), from the Pleistocene, less than 2.6 million years old.
The section below crosses 3 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.
Sand, silt. Age: Pleistocene, less than 2.6 million years old. About 20 mi of the line.
Sand, silt, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 2 mi of the line.
Shale. Age: Carboniferous, 299 to 324 million years old. About 2 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 Effingham reaches the Gulf of America by way of Stranger Creek, the Kansas, 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 Effingham; river miles along the main stem, rounded.
Effingham has a hot-summer humid continental climate. Summer afternoons average 88° in July; winter nights fall to about 16° in January. A normal year brings about 11 inches of snow; with the rain, that comes to about 38 inches of water.
On November 14 Effingham normally reaches 53° and falls to 30°. The record high is 76°, in 1964; the record low 2°, in 1940. The most rain on this date, 1.85 in, fell in 1931.
Normals 1991–2020 and records since 1891 at Horton, 12 miles north-northwest. NOAA, through RCC-ACIS.
