The Fairfield 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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13° on Nov. 13, 2019, the coldest reading for this week of the year since 1995. Next is 17° in 1995.
Fairfield’s center stands about 720 ft above sea level. Within three miles the land runs from 550 ft to 780 ft, a difference of 230 ft: rolling country. The highest named summit within 15 miles is Germantown Hill, about 960 ft, 10 miles west-southwest.
Under the town center the state geologic map shows Ashlock Formation, Grant Lake and Calloway Creek Limestones, and Fairview Formation, undivided, from the Ordovician, 445 to 487 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 49×. 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. Age: Ordovician, 445 to 487 million years old. About 14 mi of the line.
Dolostone. Age: Ordovician, 445 to 487 million years old. About 6 mi of the line.
Shale, limestone. Age: Ordovician, 445 to 487 million years old. About 3 mi of the line.
Dolostone. Age: Silurian, 422 to 445 million years old. About 1 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 Fairfield reaches the Gulf of America by way of East Fork Cox Creek, Cox Creek, the Salt River, the Ohio and the Mississippi: about 1,360 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Fairfield; river miles along the main stem, rounded.
Fairfield has a humid subtropical climate. Summer afternoons average 87° in July; winter nights fall to about 26° in January. A normal year brings about 15 inches of snow; with the rain, that comes to about 53 inches of water.
On November 14 Fairfield normally reaches 57° and falls to 38°. The record high is 75°, in 2011; the record low 21°, in 2014. The most rain on this date, 0.85 in, fell in 2024.
Normals 1991–2020 and records since 1995 at Louisville Wfo, 19 miles northwest. NOAA, through RCC-ACIS.
