According to First Alert Meteorologist Cassie Campbell, “dirty” or “muddy rain” happens when suspended tiny particles, such as dust and pollen, in the air get caught in raindrops.

If you start to make deep tracks in the mud, turn around and head back. If you come across a muddy spot on a trail that is otherwise dry, NEVER bike, ride or walk off-trail, around a muddy patch.

Vermont's "Mud Season," which can last until Memorial Day, brings wet and muddy conditions to hiking and biking trails, making them susceptible to erosion. The Vermont Department of Forests, Parks ...