The costliest single weather event of the year was Hurricane Sandy, which struck the northeastern United States in late October, with overall economic costs estimated at over US$67 billion.
The year began with La Niña conditions, meaning cooler than normal waters in the eastern Pacific Ocean near the equator.
[7] In early July, a low pressure area in the Black Sea dropped 280 mm (11 in) of rainfall in a few hours in parts of southwestern Russia, causing flash flooding that killed 172 people.
[14] In March, a severe weather outbreak of 75 tornadoes killed 42 people and inflicted US$4.1 billion in damage across the southeastern United States and into the Ohio Valley.
[4] The deadliest storm of the year was Typhoon Bopha, which killed 1,901 people and left US$1.16 billion in damage after it struck the Philippine island of Mindanao on December 3.
[22] Throughout the year, wildfires in the United States burned more than 9,200,000 acres (37,000 km2) of land, killing eight people and causing US$2.3 billion in damage.
[13] In late June, a costly and deadly derecho moved across the eastern United States, leaving 4.2 million people without power.