It certainly feels as if it has rained almost every day over the past few months. If you take a look at D.C.’s weather data (officially measured at Reagan National Airport), we’ve picked up 56.44 inches of rain as of 10 p.m. Friday night thus far this year, and we still have 15 percent of 2018 left.
Another interesting stat is that 36 percent of our 2018 days have had measurable rain, or essentially one out of every three days. When you dig further into the weather data, we’ve had 20 days this year with an inch or more of rain (the all-time record is 21 days) with our largest daily rainfall total on in July 21st with exactly four inches that day. This year we've had 33.25 inches just on those 20 days alone, or nearly 60 percent of our total rainfall on only 6 percent of our total days this year.
Typically, Washington, D.C. gets close to 40 inches of rain over the course of an entire year. With the almost 15 percent of 2018 left, we could make a run at the annual rainfall record, set in 1899, of 61.33 inches.