2017 was year of extremes for nation’s weather
The National Oceanic and Atmospheric Administration, NOAA, says that 2017 will be remembered as a year of extremes for the United States, as floods, tornadoes, hurricanes, drought, fires and freezes claimed hundreds of lives and visited economic hardship upon the nation.
Recovery from the ravages of three major Atlantic hurricanes making landfall in the United States and an extreme and ongoing wildfire season in the West were expected to continue well into the new year.
NOAA reported on its website that the average U.S. temperature in 2017 was 54.6 degrees F (2.6 degrees F above average), making 2017 the third warmest year in 123 years of record-keeping, according to scientists from NOAA’s National Centers for Environmental Information.
The five warmest years on record for the U.S. all have occurred since 2006, NOAA noted.
2017 also was the 21st consecutive year that the annual average temperature exceeded the average.
For the third consecutive year, every state across the contiguous United States and Alaska experienced above-average annual temperatures.
Precipitation for the year totaled 32.21 inches (2.27 inches above the long-term average), ranking 2017 as the 20th wettest year and the fifth consecutive year with above-average precipitation.
The national drought footprint (total area) began and ended with about one quarter of the Lower 48 states in drought.
The drought footprint reached a low of 4.5 percent in May, the smallest drought footprint in the 18-year period of the U.S. Drought Monitor.
The month of December 2017 ranked near the warmest third on the record, with an average temperature across the contiguous United States of 34.8 degrees F, 2.1 degrees above average.
Much-above-average temperatures were observed across the Southwest with record warmth in parts of California and Arizona, while near- to below-average temperatures were observed across parts of the Great Plains, Midwest and Northeast.
The month ended with record and near-record cold temperatures for many locations in the East.
The precipitation total for the month was 1.55 inches (0.80 of an inch below normal), making it the ninth driest December on record and the driest in nearly three decades.
Billion-Dollar Disasters in 2017
Last year, the United States experienced 16 weather and climate disasters each with losses exceeding $1 billion, totaling approximately $306 billion, which was a U.S. record.
219 is the number of weather and climate disasters that have exceeded $1.5 trillion in overall damages since 1980.
Far more tragic was the human toll. At least 362 people died and many more were injured during the course of the disasters that included one freeze, one drought which affected multiple areas, one wildfire which affected mutiple areas, two floods, three major hurricanes (Harvey, Irma and Maria) and eight severe storms.
The biggest newsmakers include the western U.S. wildfires that caused damages tallying $18 billion, which was triple the previous U.S. record.
Losses from Hurricane Harvey exceeded $125 billion, which ranked second only to Hurricane Katrina, the costliest storm in the 38-year period on record. Hurricanes Maria and Irma had total damages of $90 billion and $50 billion, respectively.
Hurricane Maria now ranks as third costliest weather and climate disaster on record for the nation, with Irma coming in close behind as fifth costliest.