The Valparaiso 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.
85° on Nov. 13, 1999, the hottest reading for this week of the year since 1948. Next is 80° in 2016.
Valparaiso’s center stands about 1,310 ft above sea level. Within three miles the land runs from 1,270 ft to 1,510 ft, a difference of 240 ft: rolling country.
Under the town center the state geologic map shows Dakota Group (sandstone, shale), from the Early Cretaceous, 100 to 145 million years old.
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 40×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, shale. Age: Early Cretaceous, 100 to 145 million years old. About 24 mi of the line.
Shale, limestone. Age: Late Cretaceous, 66 to 100 million years old. About 0.6 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 Valparaiso reaches the Gulf of America by way of North Oak Creek, Oak Creek, Wahoo Creek, the Platte, the Missouri and the Mississippi: about 1,840 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 Valparaiso; river miles along the main stem, rounded.
Valparaiso has a hot-summer humid continental climate. Summer afternoons average 90° in July; winter nights fall to about 14° in January. A normal year brings about 26 inches of snow; with the rain, that comes to about 29 inches of water.
On November 14 Valparaiso normally reaches 52° and falls to 28°. The record high is 78°, in 2025; the record low 4°, in 2014. The most rain on this date, 0.07 in, fell in 1993.
Normals 1991–2020 and records since 1948 at Lincoln Airport, 16 miles south-southeast, 140 ft lower. NOAA, through RCC-ACIS.