Almost No Americans Die From Lightning Strikes Anymore—Why? - Rebecca J. Rosen - The Atlantic: In the first half of the 20th century, hundreds of Americans died each year from lightning strikes. The data is messy, but in the years from about 1920 to the middle of the 1940s, about 400 people were killed by lightning annually.
Last year, 23 did, the fewest on record. Other recent years have had a similarly small number of lightning fatalities, with 28 in 2012, and 26 in 2011, the previous record.
These numbers are all the more remarkable considering how the population of the United States has exploded over the same time period. Measured on a per person basis, the decline in lightning deaths over the last century is staggering, falling from about 3 or 4 annual deaths per million Americans, to fewer than 0.1 in recent years.