The Fluvanna 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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89° on Nov. 16, 2025, the hottest reading for this week of the year since 1994. Next is 87° in 1995.
Fluvanna’s center stands about 2,660 ft above sea level. Within three miles the land runs from 2,600 ft to 2,740 ft, a difference of 140 ft: gently rolling country. The highest named summit within 15 miles is McKenzie Mountains, about 2,820 ft, 12 miles northeast.
Under the town center the state geologic map shows Ogallala Formation (sand), from the Late Miocene to Pliocene, 2.6 to 12 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 32×. 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. Age: Late Miocene to Pliocene, 2.6 to 12 million years old. About 13 mi of the line.
Shale. Age: Middle Triassic to Late Triassic, 208 to 247 million years old. About 9 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 1 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 0.9 mi of the line.
Sandstone, limestone. Age: Early Cretaceous, 100 to 145 million years old. About 0.4 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 Fluvanna reaches the Gulf of America by way of the Colorado: about 850 river miles.
Lakes on the way: Buchanan Lake, Lake Marble Falls, E V Spence Reservoir and Lake Lyndon B Johnson.
320 miles of the trip are on the Colorado.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Fluvanna; river miles along the main stem, rounded.
Fluvanna has a humid subtropical climate. Summer afternoons average 95° in July; winter nights fall to about 30° in January. About 20 inches of rain fall in a normal year, with about 3 inches of snow.
On November 14 Fluvanna normally reaches 66° and falls to 41°. The record high is 81°, in 2025; the record low 22°, in 2014. The most rain on this date, 0.24 in, fell in 2004.
Normals 1991–2020 and records since 1994 at Lake Alan Henry, 14 miles north-northeast, 380 ft lower. NOAA, through RCC-ACIS.
