The Harford 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.
Chance of showers
Mostly cloudy; warmer
Mostly cloudy
Sunny
Sunny
Mostly sunny
Partly cloudy
71° on Nov. 12, 2020, the hottest reading for this week of the year since 1924. Next is 69° in 1956.
Harford’s center stands about 1,390 ft above sea level. Within three miles the land runs from 1,010 ft to 1,690 ft, a difference of 680 ft: hilly country. The highest named summit within 15 miles is North Knob, about 2,690 ft, 9 miles east-southeast.
Under the town center the state geologic map shows Catskill Formation (sandstone, siltstone, shale), from the Late Devonian, 359 to 384 million years old.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 17×. 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, siltstone, shale. Age: Late Devonian, 359 to 384 million years old. About 24 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 Harford reaches Chesapeake Bay and the Atlantic Ocean by way of Nine Partners Creek, Tunkhannock Creek and the Susquehanna: about 260 river miles.
Lake on the way: Lake Aldred.
180 miles of the trip are on the Susquehanna.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Harford; river miles along the main stem, rounded.
Harford has a warm-summer humid continental climate. Summer afternoons average 77° in July; winter nights fall to about 12° in January. A normal year brings about 69 inches of snow; with the rain, that comes to about 51 inches of water.
On November 14 Harford normally reaches 45° and falls to 27°. The record high is 64°, in 1964; the record low 5°, in 1986. The most rain on this date, 1.30 in, fell in 1972.
Normals 1991–2020 and records since 1924 at Pleasant Mount 1 W, 14 miles east-southeast, 410 ft higher. NOAA, through RCC-ACIS.
