The winter conditions could lead to a very cold presentation location. If the room is too cold, you will have an audience that want to leave as soon as possible, keep on their coats or have something warm to drink.
Check the temperature in the room where you will present in advance. See with those who can change the temperature of the room that it will be suitable for your audience during your presentation. If you only think about this one minute before your presentation it may be too late to change the temperature.
Depending on the size of the room and the way in which the temperature is dealt with, it may take a long time before the temperature reaches what is desired to have an effective presentation. Make sure to have arranged for the perfect temperature in the room. Consider that due to the body heat of your audience there also we be an impact on the temperature in the room.