WASHINGTON, D.C. — After more than three weeks of persistent winter conditions, the final patches of measurable snow have officially melted across the D.C. metro region, marking the end of one of the area’s longest snow-on-the-ground streaks in decades.
According to regional airport climate data, this winter stretch was not just notable — it was historically significant.
DCA, BWI, and IAD End Rare Multi-Week Snow Streak
The last holdout was Dulles International Airport (IAD), which officially ended its measurable snow-on-the-ground streak this afternoon. Here’s how the numbers stack up:
- Reagan National (DCA): 18 consecutive days with measurable snow — most since 2000
- Baltimore/Washington (BWI): 21 consecutive days — most since 2000
- Dulles (IAD): 22 consecutive days — most since 2010
For Washington, D.C., this was especially unusual. Since official record-keeping began in 1893, the city has only seen a streak this long — or longer — 15 times in its entire recorded history.
That puts this recent event firmly in the “rare anomaly” category.
What the Snow Map Showed
At the height of the snowpack, much of the D.C. metro and surrounding areas — including Baltimore, Washington, Hagerstown, and parts of northern Virginia — held between a trace and several inches of snow on the ground…