Insured losses to homes from lightning strikes in the United States fell to their lowest level in a decade last year, as severe thunderstorm activity eased from near-record levels and dry weather prevailed throughout much of the western half of the country.

Even with the dry weather conditions, insurers still paid $673.5 million in lightning claims to more than 100,000 policyholders in 2013, according to the Insurance Information Institute (I.I.I.).

Although total insured losses from lightning were down by nearly one-third (30.5 percent) in 2013, the decline since 2004 is a much more modest 8.4 percent. In the prior three years (2010 – 2012), home insurers paid approximately $1 billion per year, on average, to policyholders.

An analysis of homeowners insurance data by the I.I.I. and State Farm found there were 114,740 insurer-paid lightning claims in 2013, down 24 percent from 2012.

The average lightning paid-claim amount was also down in 2013, slipping by 8.3 percent to $5,869 from $6,400 in 2012.

Despite the drop in the number of paid claims in 2013, the average cost per claim rose nearly 122 percent from 2004-2013. By comparison, the consumer price index rose by 23.3 percent in the same period.

The decline in lightning damage last year is consistent with data from the National Weather Service, which recorded 137 days in 2013 with lightning causing property damage, while 160 such days were recorded in 2012—a 14 percent decrease.

The incidence of lightning claims last year is also a continuation of a downward trend. Since 2004, the number of paid lightning claims is down nearly 60 percent over the nine-year period through 2013.

Source: Insurance Information Institute