The Jacksonville 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
Showers likely; cooler
Chance of showers; warmer
Partly cloudy; warmer
Partly cloudy
Partly cloudy
Mostly sunny
19° on Nov. 13, 2019, the coldest reading for this week of the year since 1953. Next is 24° in 1970.
Jacksonville’s center stands about 500 ft above sea level. Within three miles the land runs from 400 ft to 690 ft, a difference of 290 ft: rolling country. The highest named summit within 15 miles is Ghent Mountain, about 730 ft, 8 miles south-southwest.
Under the town center the state geologic map shows Queen City Sand (siltstone, sandstone), from the Middle Eocene, 38 to 48 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 47×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Siltstone, sandstone. Age: Middle Eocene, 38 to 48 million years old. About 15 mi of the line.
Sandstone. Age: Middle Eocene, 38 to 48 million years old. About 4 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 2 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 0.7 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 0.5 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 Jacksonville reaches the Gulf of America by way of Mud Creek, the Angelina and the Neches: about 310 river miles.
Lakes on the way: Ester Lake, Sabine Lake and B A Steinhagen Lake.
110 miles of the trip are on the Neches.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Jacksonville; river miles along the main stem, rounded.
Jacksonville has a humid subtropical climate. Summer afternoons average 94° in July; winter nights fall to about 34° in January. About 48 inches of rain fall in a normal year.
On November 14 Jacksonville normally reaches 69° and falls to 43°. The record high is 88°, in 1955; the record low 19°, in 2019. The most rain on this date, 1.14 in, fell in 1970.
Normals 1991–2020 and records since 1953 at Jacksonville, here. NOAA, through RCC-ACIS.
