How many days were there in 2008-2009 20 degress or less in nyc?

In the 2008-2009 winter season, New York City experienced a total of approximately 36 days where the temperature dropped to 20 degrees Fahrenheit or below. This period included frigid cold snaps typical of the winter months. The exact number can vary slightly depending on specific weather data sources, but it reflects a notably cold winter for the city.