This year's been warmer than average for most of the United States, but a large cold front sweeping across the country is going to bring a certain chill to Halloween.
The big weather pattern shift is pushing some colder than average air across all of the U.S. except for states along the West Coast.
Some parts of the Midwest can even expect to see their first snowfall of the season. Minnesota, northern Wisconsin and Michigan's Upper Peninsula are all expecting snow leading up to or during the weekend before Halloween.
This change in the weather is breaking the trend from the rest of the year — if only for a few nights.
Every month so far in 2017 has experienced warmer than average temperatures overall.
January through September this year ranked as the third warmest on record, only falling behind the warmer years of 2012 and 2016.
This October has followed that trend with all but the Northeast experiencing a warm beginning to the fall season.
Getting past fall and Halloween, this winter appears to be a tale of two seasons according to the latest long-term forecasts with warmer than average conditions across the South and cooler than average conditions in the North.