"Thirty percent of all fires (543,600 averaged over 1996-98) occur during the winter months from November through February. These winter fires average 8,775 injuries, 1,910 deaths, and $3 billion in property loss each year. In residences, however, more fires occur in the winter (37%) than in the other two-thirds of the year. [...]. This report [revised December 2001] examines the causes and characteristics of winter fires."
United States Fire Administration: http://www.usfa.dhs.gov/
United States Fire Administration Topical Fire Research Series (February 2001), v.1 no.13