where is the warmest weather in the united states in december?
Florida
contradiction
 During the summer , the North American monsoon combined with Gulf of California and Gulf of Mexico moisture moving around the subtropical ridge in the Atlantic ocean bring the promise of afternoon and evening air @-@ mass thunderstorms to the southern tier of the country as well as the Great Plains . Equatorward of the subtropical ridge , tropical cyclones enhance precipitation across southern and eastern sections of the country , as well as Puerto Rico , the United States Virgin Islands , the Northern Mariana Islands , Guam , and American Samoa . Over the top of the ridge , the jet stream brings a summer precipitation maximum to the Great Lakes . Large thunderstorm areas known as mesoscale convective complexes move through the Plains , Midwest , and Great Lakes during the warm season , contributing up to 10 % of the annual precipitation to the region . 

contradiction
 Winter winds can reach 60 miles per hour ( 97 km / h ) . Summer breezes are lighter , but the 10 @-@ mile @-@ per @-@ hour ( 16 km / h ) average wind causes frequent sandstorms and dust devils , some of which reach altitudes of several thousand feet . 

neutral
 Hot temperature extremes are enhanced by dry , compressed wind from the west slopes of the Cascades , while cold temperatures are generated mainly from the Fraser Valley in British Columbia . 

contradiction
 Fall is the most rapidly changing season temperature wise , especially in October and November . Tropical cyclones remain a threat until late in the season . The Appalachian Mountains are frequently visited at this time of year , due to the leaves changing color in the trees . 

contradiction
 The characteristics of United States rainfall climatology differ significantly across the United States and those under United States sovereignty . Late summer and fall extratropical cyclones bring a majority of the precipitation which falls across western , southern , and southeast Alaska annually . During the winter , and spring , Pacific storm systems bring Hawaii and the western United States most of their precipitation . Nor 'easters moving down the East coast bring cold season precipitation to the Carolinas , Mid @-@ Atlantic and New England states . Lake @-@ effect snows add to precipitation potential downwind of the Great Lakes , as well as Great Salt Lake and the Finger Lakes during the cold season . The snow to liquid ratio across the contiguous United States averages 13 : 1 , meaning 13 inches ( 330 mm ) of snow melts down to 1 inch ( 25 mm ) of water . 
