6. East Coast of North America: Pittsburgh, Cincinnati, Indianapolis, Charlestown
Cities in the eastern part of the United States — Pittsburgh, Pennsylvania; Cincinnati, Ohio; Indianapolis, Indiana; and Charleston, South Carolina — all recorded all-time high temperatures on Feb. 20, with a month of winter still remaining.
7. East Coast of North America: Maryland
On May 27, torrential rains west of Baltimore dumped as much as 10 inches of rain on the town of Catonsville, Maryland. Based on historical records, rainfall of such intensity occurs once every 500 years. Extreme weather events such as this are associated with climate change.
8. Mid-Atlantic: from Arkansas to Massachusetts
A slow-moving colossal blizzard in January 2016 impacted 100 million people from Arkansas to Massachusetts. The storm dumped 20 inches of snow or more on 21 million people. According to the Regional Snowfall Index, the blizzard was rated the fourth largest since 1900. Some scientists say the blizzard is an example of human-caused climate change because it was an extreme weather event.
9. Northeastern United States
The amount of rain falling in the heaviest 1% of storms in the U.S. has been increasing over the last century, according to the National Climate Assessment. These extreme weather events are associated with human-caused climate change. The greatest increases have been in the Northeast, Great Plains, and the Midwest, and Southeast. In these regions more than 30% of rain fell above the 1901-1960 average.
10. South-West United States: California, Arizona, Nevada
Drought intensified in the American Southwest at the beginning of spring. Fish in the Rio Grande had to be relocated and farmers along the Middle Rio Grande in New Mexico were told to expect half their irrigation allotment.