After years of booming tourism in Las Vegas, the hot streak looks to be cooling off — and it may be a tell for the broader economy.

For the sixth consecutive month this year, Las Vegas experienced a decline in the number of visitors year-over-year — with June seeing nearly 400,000 fewer visitors, or an 11.3% drop, compared to the same time last year, according to the Las Vegas Convention and Visitors Authority (LVCVA).