Transportation

It's Deer-Collision Season

Deer collisions rise precipitously in autumn—so watch out, West Virginia, Iowa, and Pennsylvania.
Oregon Department of Transportation/Flickr

Night drivers, keep your eyes peeled: Deer-collision season is upon us. According to the Highway Loss Data Institute (HLDI), an insurance industry group, deer-collision rates as measured by insurance claims filed follow a familiar annual pattern—rising dramatically in October, peaking in November, and going strong through December before bottoming out in August.

Why the autumn jump in collisions? Deer migration and mating season runs from October to December, meaning more frenzied deer roam more widely in these months than any others.