The hottest day of the year didn't just bring sweltering conditions to the streets in New York City -- subway riders suffered underground, too.

A survey of temperatures taken at various subway stations across the city by news partner WNYC found that the Brooklyn Bridge-City Hall station serving the 4/5/6 lines was by far the hottest Wednesday evening, recording a blazing 106 degrees.

The temperatures were recorded at every Manhattan subway platform south of Central Park between 5 and 7 p.m. Four WNYC reporters followed specific routes to hit the stations and measured the temperatures using an air thermometer, standing in the middle of each platform so that the thermometer wouldn't catch any air-conditioning.

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Here were some of the other hotter stations:

101 degrees at the World Trade Center station

99 degrees at the Fulton Street 4/5 station

93.2 degrees at the 42nd Street Times Square shuttle station

90.2 degrees at the Houston Street 1 station

88.3 degrees at the Christopher Street station

85.5 degrees at the 14th Street station

There were some cool stations, too: The 23rd Street N/R station and the Rector Street R station both recorded 71 degrees, and the 5th Avenue-59th Street N/Q/R station bottomed out at 68 degrees. But those were the exceptions, with most straphangers left feeling the heat.

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"It's always hot, it's always humid," said subway rider Chartotte Russo. "My hair is definitely sticking to my neck."

Highs reached 95 degrees in the city Wednesday, making it the hottest day so far this year; stifling humidity made it feel much hotter, and it will continue to feel oppressive Thursday, even if the temperature doesn't tick up past 90 degrees.

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