WeatherWhys for October 22,2015 from accuweather.com

The frequency of hurricanes drops off dramatically during late October and November. In December, storms of this nature rarely occur. The main reason is that the westerly upper-level winds strengthen and press farther south, breaking down the Atlantic ridge and increasing wind shear in the typical hurricane formation zone. In addition, the ocean cools significantly during November. That means less fuel for any tropical storm that might try to take shape.