Florida is warmer than many other U.S. states primarily because of the Gulf Stream, a warm ocean current that flows along its coastline.

The Gulf Stream, which originates in the Gulf of Mexico, brings warm water up the eastern U.S. coast, directly impacting Florida's climate. This ocean current raises the air temperature along the state's shores, especially in winter, keeping it mild and warm compared to other states further north. The combination of this warm water, Florida's southern location, and its proximity to the Atlantic Ocean and Gulf of Mexico all contribute to its year-round warmth.