Rene Lopez sprinkles salt on the sidewalk along M Street in Georgetown as the first snow of the season falls Saturday in Washington. (J. Lawler Duggan/For The Washington Post)

The first snow of the season coated the Washington region Saturday as light but steady flakes fell from late morning through the evening, covering grassy areas and some sidewalks and leaving main roads wet but drivable.

It was the first time snow accumulated on the ground in the region this early in the season since 2013, according to The Washington Post's Capital Weather Gang — even if it was rather modest. Reagan National Airport reported a half-inch of snow at 1 p.m., while Dulles saw over two inches.

The storm began in the South, dumping up to 10 inches in parts of Georgia, an area not accustomed to heavy snow. But by the time it reached the Washington region, it appeared that predictions of 1 to 3 inches were spot on. It was the first measurable December snow in the District since 2013, according to the Capital Weather Gang.

Above-freezing temperatures kept much snow from sticking until midafternoon; a morning 12-kilometer run along the C & O Canal towpath in Georgetown went on unencumbered. But several school systems in the area canceled weekend activities, as parts of Maryland and Virginia saw higher snow totals.

St. Mary's County on Maryland's Western Shore was blanketed with over four inches, most of which fell Friday night. Damascus and Clarksburg in northern Montgomery County saw over three inches of snow, as did Leesburg, Va., according to the Capital Weather Gang.

Roads remained largely clear thanks to treatment that began Friday, and rock salt spread in the predawn hours Saturday morning. But emergency officials warned of slick and icy roads as temperatures were expected to drop below freezing Saturday night into Sunday morning, particularly on side streets and rural roads. The snow was expected to continue throughout the early evening Saturday before heading toward New England.

While the snow was expected to make a relatively quick exit, cold temperatures looked likely to stick around. Highs on Sunday are expected to be in the mid-30s to near 40.