The city's tourism agency, NYC & Company, said it's hoping to entice travelers from other American and international cities to visit during the chillier months.

An ad campaign launched on Monday, called "Unlock NYC," will focusing on cozier, indoor attractions, the agency said.

Hotel occupancy rates dipped to 77.4 percent in the first quarter of 2014, compared to the yearly average of 89.5 percent and 95.8 percent in the month of August. The agency said it hoped to boost visitor spending and Broadway show attendance and grow New York City's economic impact during the months when tourism traditionally dips.

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The ads will run in London, Spain, Italy, Washington, D.C., Los Angeled, Philadelphia and Boston, the agency said.

Some of the suggested winter attractions include visting Grand Central terminal or the Noguchi Museum in Long Island City, riding the Staten Island Ferry, strolling the Queensboro Bridge, or seeing a matinee show. 

"Unless you're a beach destination, attracting visitors in the winter is tough. We want visitors to think 'access, value and allure' instead of 'snow and ice' when it comes to a New York City winter," Fred Dixon, President and CEO of NYC & Company, said in a prepared statement. 

"There are endless reasons to love New York City in every season, but something special happens when the snow falls — from Lunar New Year celebrations in Flushing and the tree lighting in Rockefeller Center, to watching the Polar Bear Club brave the frigid waters on Coney Island," Mayor Bill de Blasio said in a prepared statement.