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Over 7 inches officially in D.C.: Third biggest snow so late in season on record

Snow total reports from NWS | Snowfall total map *

Snow at the Capitol early this morning (Ian Livingston)

Originally published at 8 a.m. and 11:32 a.m.

Through 7 a.m., Reagan National Airport had picked up 7.2 inches of snow (3.9 inches today, 3/17, and 3.3 inches Sunday, 3/16) from this late winter storm. Impressively, it’s the third biggest snowstorm on record to occur so late in the season in Washington weather records, which date back to 1888.

(Note: Reagan National Airport, while located in Virginia, serves as Washington, D.C.’s official weather station.)

The only more prolific snow-producers this deep into March occurred March 28-29, 1942 (11.5 inches), and March 27-28, 1891 (12 inches).

Since D.C.’s observing station moved from 24th and M St. to Reagan National in 1945, this storm is the biggest on record so late in the season.

The 7.2 inches ranks as D.C.’s 10th biggest snowstorm in March on record, knocking the 1993 March 12-13 superstorm, which dropped 6.6 inches, off the top 10 list.

It’s the biggest March snowstorm in D.C. since the 8.4 inches that fell March 9, 1999.

Related: March snow in Washington, D.C.: Precedent exists for ending winter with a bang

Today’s 3.9 inches at Reagan National broke the previous daily record of 1.9 inches from 1965.

Washington’s March snowfall total is now up to 11 inches (including the 3.8 inches from March 3), tying 1937 for eighth most on record for the month.

Top 10 March snowstorms (left) and top 10 March monthly snow totals (right) (Ian Livingston, adapted by Jason Samenow)

Reagan National’s seasonal snow total is now 30.3 inches, the 4th most in the last 25 years – and nearly double its modern-day average. Measurable snow has fallen on 15 days this winter!

Dulles Airport

Dulles Airport received 10 inches from this storm, its second biggest March snowstorm on record, trailing only the 13.9 inches from the March 1993 superstorm. The 6.6 inches which fell Sunday, March 16, was a record for the date.

For March, Dulles has received 14.9 inches, second most on record to the 15.5 inches from 1993.

For the season, Dulles has received a remarkable 47.9 inches, 4th most in its records, which date back to 1963-1964.

6:00 p.m. update: Dulles Airport officially reports 11.1 inches from the storm (1.1″ additional fell since this morning’s report below), bringing its seasonal total to 49 inches (4th most on record).  It has received 16 inches in March, most on record.

(CWG’s Ian Livingston contributed to this post)

Jason is currently the Washington Post’s weather editor. A native Washingtonian, Jason has been a weather enthusiast since age 10.
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Jason Samenow · March 17, 2014

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