It’s not 40 days and 40 nights, but D.C. has now logged 14 straight days with at least a trace of rainfall.
With rain in the forecast over the next few days, D.C. may now challenge the record for the most consecutive days with at least a trace of rain, which is 17 days (set March 31 to April 16, 1935). A trace of rain signifies rain has fallen, but not enough to measure.
As we reported yesterday, D.C. has already broken the record for the most consecutive days with measurable (at least 0.01 inches) rain. It has run that streak up to 13 days, exceeding the previous longest such stretches (July 17 to 26, 1938, and Aug. 12 to 21, 1873) by three days.
Although only a trace of rain has occurred today, there’s a reasonable chance that measurable rain will occur before midnight, which would extend the streak to 14 days.
All of these rainy days, so far, have amounted to a total of 3.61 inches — or an average of 0.28 inches per day. With the exception of a torrential burst or two, the intensity of the rain has mainly been low.
Other area airports are also flirting with or breaking records for rainy-day longevity.
On Monday, Dulles International Airport broke its record for most consecutive days with at least a trace of rain, logging its 14th day in a row (breaking previous records of 13 days from May 5 to 17, 1989, and June 13 to 25, 1972). Its streak of days with measurable rain only reached five days, April 30 to May 4, as only trace amounts fell on April 29 and May 4.
Baltimore-Washington International Marshall Airport recorded 12 straight days with measurable rain April 27 to May 8, but this streak ended Monday (May 9) when only a trace fell. It came up a couple of days short of its longest streak with measurable rain of 14 days from Aug. 10 to 23, 1873. However, BWI still has a chance to tie or break its record of 17 straight days with at least a trace of rain, set March 31 to April 16, 1938. Its current count is up to 14 days as of today.