Through the first 15 days of July (and in fact, the 16th also), only a trace of rain was observed at Reagan National Airport. This is the only time on record, dating back to 1871, that no measurable rain fell in the first 15 days of July. The old low benchmark of 0.08" was set in 1900. Normal rainfall for the first 15 days of July is 1.86 inches, and back in 1905, the wettest first 15 days of July brought 7.05" of rain.
https://www.weather.gov/lwx/dryjuly2018