The Ozora 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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Mostly sunny; warmer
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86° on Nov. 14, 1999, the hottest reading for this week of the year since 1974. Next is 85° in 1989.
Ozora’s center stands about 530 ft above sea level. Within three miles the land runs from 380 ft to 730 ft, a difference of 350 ft: rolling country. The highest named summit within 15 miles is Madden Hill, about 990 ft, 8 miles west-southwest.
The section below crosses 14 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 30×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone, sandstone, shale. Age: Middle Mississippian, 331 to 347 million years old. About 6 mi of the line.
Dolostone. Age: Cambrian, 487 to 497 million years old. About 3 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 3 mi of the line.
Sandstone. Age: Cambrian, 487 to 497 million years old. About 2 mi of the line.
Limestone, sandstone. Age: Early Devonian to Late Devonian, 359 to 422 million years old. About 2 mi of the line.
Limestone, sandstone, shale. Age: Late Mississippian, 324 to 331 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. 8 smaller units along the line are not listed.
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 Ozora reaches the Gulf of America by way of Saline Creek, the Old and the Mississippi: about 1,100 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Ozora; river miles along the main stem, rounded.
Ozora has a hot-summer humid continental climate. Summer afternoons average 89° in July; winter nights fall to about 24° in January. About 43 inches of rain fall in a normal year, with about 4 inches of snow.
On November 14 Ozora normally reaches 56° and falls to 37°. The record high is 86°, in 1999; the record low 9°, in 1986. The most rain on this date, 3.40 in, fell in 1993.
Normals 1991–2020 and records since 1974 at Kaskaskia River Navigation Lock, 10 miles north-northeast, 140 ft lower. NOAA, through RCC-ACIS.
