It was 83 years ago today on February 9th when the temperature in New York City was at 15 degrees below zero and stayed below zero for the entire day.
https://www.nytimes.com/2017/02/09/nyregion/winter-storm-nyc-niko-weather.html?_r=0
https://www.nytimes.com/2017/02/09/nyregion/winter-storm-nyc-niko-weather.html?_r=0