Characteristic of many weather systems in 2011, the cold front passing through the region Tuesday left the District and many spots inside the beltway dry. The image of rainfall estimated by doppler radar below speaks volumes:

Rainfall estimated by doppler radar over the 24 hours spanning 10 a.m. on 6/28 and 10 a.m. on 6/29 (National Weather Service)

Airport amounts:

Reagan National: Trace
Dulles: Nada
BWI: 0.35”

Reagan National Airport now has a 1.23” rainfall deficit during June and a deficit of 3.59” in the calendar year (relative to average).

Some other rainfall amounts from the Cocorahs network:

Warrention, Va: 0.12”
Annapolis, Md.: 0.55”
Leonardtown, Md.: 0.11”
Potomac, Md.: 0.88”
Wheaton-Glenmont, Md.: 0.56”