VEGAS MYTHS BUSTED: Vegas Heat Melts Traffic Lights

In the midst of this weekend’s 110-degree Las Vegas heat, a photo of a melting traffic light made the social media rounds.

The photo was posted on June 6 by the Facebook group Sin City Las Vegas Locals, where it earned 33,000 likes and 2,500 comments.

Here are some of those comments:

A Facebook page called Let’s Explain, which categorizes itself as a science and tech authority, stepped in to resolve exactly what happened.

Beneath a copy of the photo, it explained that “traffic light covers are typically made of plastic, which can warp or melt when exposed to high temperatures.” The post also informed its readers that direct sunlight, the added heat absorption of darker colors, and poor ventilation inside the signal housing probably played roles in the mishap.

Except that modern traffic light enclosures aren’t made of plastic. In Las Vegas and everywhere else in the US, they’re made of aluminum alloys designed to resist an average temperature of 600°F.

The hottest temperature ever recorded in Las Vegas was 117°F. It was set on July 24, 1942 and tied four times, most recently on July 10, 2021. Direct sun does heat dark-colored objects to higher temperatures than the surrounding air, but never even remotely close to six times hotter.

Also, that explanation doesn’t cover how even if this somehow could have resulted from air temperature and/or direct sunlight one side of the traffic light melted while the other side didn t.

The traffic light shown in the photo isn t from Las Vegas. It melted in Italy due to the heat from a scooter that burst into flames beneath it on July 25, 2022, according to Italy s

The fire occurred at the intersection of Viale Regina Margherita and Via Bergamo in Milan.

We know because Instagram user Simone Lunghi four days later.

In defense of Sin City Las Vegas Locals, it never directly claimed that the traffic light in the photo melted from the Las Vegas heat. The group s caption merely read “Vegas Summer has arrived,” punctuated by a sun emoji.

We ve warned you, dozens and dozens of times, not to believe everything you see on the internet, kids. But we re secretly glad that you never listen, since that leaves plenty more Vegas myths for us to bust every week.

Look for “Vegas Myths Busted” every Monday on Casino.org.  to read previously busted Vegas myths. Got a suggestion for a Vegas myth that needs busting? Email corey@casino.org.