March is off toa roaring start with three nor'easters in 11 days traveling up the East Coast, dumping feet of snow, knocking out power to millions and causing severe coastal flooding. While it's unusual to have a trio of coastal storms in such close succession, it turns out the last time thisoccurred was just three yearsago.

First, let's recap what we've experienced so far this March.

began this parade on March 2and was followed by last week. will cap off the 11-daynor'easter trifecta when it swipesNew England on Tuesday.

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All three of those storms moved near what meteorologists call the 40/70 benchmark –40 degrees north latitude and 70 degrees west longitude. When potent low-pressure systemspass near this pointon the globe, it generally means parts of the Northeastcan see at least some impacts from a particular coastal storm.

A little more than three years ago, there was a similar occurrence of three strong coastal storms passing near this benchmark over the span of a week and a half.

Late January into early February 2015 featured passing within two degrees of the 40/70 benchmark in 10 days, according to , a meteorologist at NOAA's Weather Prediction Center.

Those three nor'easters were (Jan. 23-24, 2015), (Jan. 26-28, 2015) and (Feb. 2, 2015).

Of the three, Juno produced the most widespread and heavy snowfall amounts in the Northeast.

Iola, Juno and Linus also helped vault Boston to its , with 110.6 inches piling up from November 2014 to March 2015.

Providence, Rhode Island, and Worcester, Massachusetts, chalked up their second- and third-snowiest winter seasons on record, respectively.