D.C. area October rainfall totals

Here are some of the unofficial rainfall totals from the past 5 days sent in to the National Weather Service office in Sterling, VA. Plenty of reports of up to four, five, six and even seven inches of rain in locations across the D.C. area. Now that the region is finally seeing a little sunshine into the area, I wanted to take a look at some of the numbers over the past 5 days.

Here's a quick look at the 5-day totals from the local airports:

BWI Thurgood Marshall - 6.59"

Dulles International Airport - 6.26"

Reagan National Airport - 4.99"

Radar estimated rainfall in the past 5-days

That is an incredible amount of rain (Jeff Halverson from CWG wrote a great blog on why we had so much), as Reagan National only averages 3.4" of precipitation for the month of October. Reagan National now sits at 6.12" for the month, which is 4.29" above normal. Does anyone remember the cold front 7 days ago that spawned tornado warnings around the region? About an inch of rain fell throughout the region that day too, so 6.12" is a 7-day total, which is crazy to think.

Dulles Airport and BWI Marshall are both around 6 inches above normal for precipitation for the month. What's more interesting with those two locations is the fact they are both 1.83" (Dulles) and 1.8" (BWI) away from monthly precipitation records, and it's only the 14th!

Reagan National still has a ways to go as far as the record, as with 6.12" for the month and a record of 9.41", the location would still need an additional 3.29" to hit it, which is nearly the monthly average.

There is a dry period in the near future, but a few sprinkles may be possible with a weak cold front late Wednesday and a better chance for moderate rain Thursday night into Friday morning.

Oddly enough, the 5-day rainfall totals from this system were very close to the numbers seen in the wake of Hurricane Sandy. Reagan recorded 4.84", BWI 6.67" and Dulles 5.65" from Sandy, which is all within about a half of an inch! Thanks to @MDWeather on Twitter for that interesting tidbit.

Last week/weekend's rain came within a quarter-inch of matching Hurricane Sandy's deluge 6+ inches fell #mdwx

— Maryland Weather (@MdWeather) October 14, 2013