The St. Francis 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.
71° on Nov. 11, 2020, the hottest reading for this week of the year since 1893. Next is 65° in 2002.
St. Francis’s center stands about 1,180 ft above sea level. Within three miles the land runs from 630 ft to 1,730 ft, a difference of 1,100 ft: steep hill country. The highest named summit within 15 miles is McLean Mountain, about 1,940 ft, 1 miles south-southeast.
Under the town center the state geologic map shows Devonian Seboomook Formation (mudstone, sandstone), from the Early Devonian, 410 to 414 million years old.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 15×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Mudstone, sandstone. Age: Early Devonian, 410 to 414 million years old. About 16 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 St. Francis reaches the Bay of Fundy and the Atlantic Ocean by way of Petite Brook and the Saint John: about 290 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of St. Francis; river miles along the main stem, rounded.
St. Francis has a warm-summer humid continental climate. Summer afternoons average 76° in July; winter nights fall to about −3° in January. A normal year brings about 99 inches of snow; with the rain, that comes to about 42 inches of water.
On November 14 St. Francis normally reaches 39° and falls to 23°. The record high is 58°, in 1951; the record low 0°, in 2019. The most rain on this date, 1.18 in, fell in 2003.
Normals 1991–2020 and records since 1893 at Fort Kent, 14 miles east-northeast, 570 ft lower. NOAA, through RCC-ACIS.