National Oceanic and Atmospheric Administration's National Centers for Environmental Information (NCEI)
NOAA's National Centers for Environmental Information (NCEI) tracks and evaluates climate events in the U.S. and globally that have great economic and societal impacts. NCEI is frequently called upon to provide summaries of global and U.S. temperature and precipitation trends, extremes, and comparisons in their historical perspective.
NCEI's Billion-Dollar Weather and Climate Disasters shows the weather and climate events that have had the greatest economic impact from 1980 to the present. The website includes an interactive maps, time series, and other tools to visualize the frequency and cost of billion-dollar weather and climate events, including drought.