Denver’s first official snow of the season is expected to fall between Wednesday evening and Thursday.

A 62-degree temperature swing is expected to make way into the Mile High City, delivering between 2 to 4 inches of snow from Wednesday evening into Thursday, October 9-10. Temperatures are predicted to shift from a high of 78 to a low of 16 – a sign that winter is well on its way.

According to the National Weather Service, a strong cold front moving into the state on Wednesday evening into Thursday morning will bring cool temperatures and heavy snow to the Front Range and Mountain Corridor. Some areas of the state could see up to 12 inches of snow.

Based on a report from the Denver Post, Denver typically sees its first measurable snowfall around mid-October, ranking third among major American cities for the earliest snowfall.

The snow is coming and if you don’t know already, Colorado has a new traction law in place. Here’s everything you need to know to ensure you avoid some major fines this winter.

CDOT has also issued a heavy snow warning for Thursday across the Front Range and Mountain Corridor, with snow accumulations possible on the highway. Travelers are urged to drive with extreme caution, take it slow, and always maintain plenty of space between you and other vehicles.