The Lebanon 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.
Mostly cloudy
Mostly sunny
Partly cloudy
Mostly sunny
Mostly sunny
Mostly sunny
Mostly sunny
76° on Nov. 11, 2020, the hottest reading for this week of the year since 1953. Next is 73° in 2022.
Lebanon’s center stands about 300 ft above sea level. Within three miles the land runs from 280 ft to 640 ft, a difference of 360 ft: rolling country. The highest named summit within 15 miles is Moose Mountains, about 1,750 ft, 15 miles northwest.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 23×. 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, mudstone. Age: Silurian to Devonian, 359 to 445 million years old. About 8 mi of the line.
Mudstone, limestone. Age: Silurian to Devonian, 359 to 445 million years old. About 7 mi of the line.
Gneiss. Age: Neoproterozoic to Silurian, 422 to 1,000 million years old. About 5 mi of the line.
Mudstone. Age: Silurian to Devonian, 359 to 445 million years old. About 2 mi of the line.
Metasandstone, phyllite. Age: Neoproterozoic to Silurian, 422 to 1,000 million years old. About 1 mi of the line.
Schist, phyllite. Age: Neoproterozoic to Devonian, 359 to 1,000 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. 1 smaller unit 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 Lebanon reaches the Atlantic Ocean by way of Keay Brook, the Salmon Falls and the Piscataqua: about 30 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Lebanon; river miles along the main stem, rounded.
Lebanon has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 10° in January. About 51 inches of rain fall in a normal year.
On November 14 Lebanon normally reaches 49° and falls to 27°. The record high is 71°, in 1989; the record low 9°, in 2019. The most rain on this date, 1.60 in, fell in 2018.
Normals 1991–2020 and records since 1953 at Sanford 2 NNW, 6 miles northeast. NOAA, through RCC-ACIS.
