A snowy, cold start to winter follows a very warm fall. How are Illinois seasons changing?

Snow covers Cloud Gate in Millennium Park on Nov. 30, 2025, after Chicago recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

People walk through fresh flurries along West 18th Street in Chicago’s Pilsen neighborhood on Nov. 30, 2025, after the city recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

Sledders fly down a hill at Barrie Park on Nov. 30, 2025, in Oak Park after the region recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

Trey Stewart surfs under a rising supermoon at Montrose Beach on Dec. 4, 2025, in Chicago. The air temperature at the time was 17 degrees. (John J. Kim/Chicago Tribune)

A person walks through the snow along North Michigan Avenue as a winter storm passes through the area on Nov. 29, 2025, in Chicago. (Armando L. Sanchez/Chicago Tribune)

People make a snowman in Chicago’s Grant Park on Nov. 30, 2025, after the city recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

Three people walk in the snow in the 2200 block of North Milwaukee Avenue, Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

Kids line up to sled down a hill at Barrie Park on Nov. 30, 2025, in Oak Park after the region recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

People ice skate in Millennium Park on Nov. 30, 2025, after Chicago recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

A woman catches snowflakes with her tongue while walking in the 1600 block of North Milwaukee Avenue on Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

Sledders head to the top of the hill at Barrie Park on Nov. 30, 2025, in Oak Park after the region recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

A CTA Red Line train arrives at the Lawrence station in the snow as a winter storm passes through the area on Nov. 29, 2025, in Chicago. (Armando L. Sanchez/Chicago Tribune)

People walk through the snow along North Michigan Avenue as a winter storm passes through the area on Nov. 29, 2025, in Chicago. (Armando L. Sanchez/Chicago Tribune)

People cross the bridge from Maggie Daley Park on Nov. 30, 2025, after Chicago recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

A man rides a Divvy bike through fresh flurries along West 18th Street in Chicago’s Pilsen neighborhood, Nov. 30, 2025, after the city recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

Henry Leman, 8, throws a snowball at his mom, Caitlin Leman, during a winter storm on Nov. 29, 2025, in Wheaton. (Dominic Di Palermo/Chicago Tribune)

A woman pulls a cart of items through the snow in the 2200 block of North California Avenue, Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

Jaclyn Buckreis pushes her son Tyler, 12, down Sled Hill in Riverwalk Park during a winter storm on Nov. 29, 2025, in Naperville. (Dominic Di Palermo/Chicago Tribune)

A person walks around Buckingham Fountain in Grant Park on Sunday, Nov. 30, 2025, after Chicago recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

Snow is moved from piles into a giant melter at Chicago’s O’Hare International Airport as a storm rolls through the area on Nov. 29, 2025. (Chris Sweda/Chicago Tribune)

Light traffic moves through the Kennedy Expressway in the snow near the Diversey Avenue off-ramp on Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

A man shovels out his vehicle in the 2700 block of North Artesian Avenue, Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

A fallen bicycle is covered in snow in the 2700 block of North Milwaukee Avenue, Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

Participants in the Naperville Run Company’s “Small Biz Saturday 25th Anniversary Fun Run + Walk” run near the Riverwalk on Jackson Avenue during a winter storm on Nov. 29, 2025, in downtown Naperville. (Dominic Di Palermo/Chicago Tribune)

Tracy Hansen, manager at Mano a Mano Italian restaurant, decorates the entrance with holiday-themed stickers in the 2500 block of North Milwaukee Avenue on Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

A sledder catches air off a ramp on a hill at Barrie Park on Nov. 30, 2025, in Oak Park after the region recorded over 8 inches of snow. (Brian Cassella/Chicago Tribune)

A woman walks around her vehicle after cleaning snow off the windows and wiper blades, in Berwyn, Nov. 29, 2025, as cold and snow make for slippery streets during the start of a winter storm in Chicagoland. (Antonio Perez/Chicago Tribune)

A woman walks alongside footprints in the snow in the 1500 block of North Damen Avenue, Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

A worker scoops snow off the sidewalk in the 1500 block of North Milwaukee Avenue on Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

A man darts across the 2000 block of West North Avenue, Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

A CTA Blue Line train approaches the Damen station on Nov. 29, 2025, in Chicago. (John J. Kim/Chicago Tribune)

Tyler Buckreis, 12, of Naperville, walks back up Sled Hill in Riverwalk Park during a winter storm on Nov. 29, 2025, in Naperville. (Dominic Di Palermo/Chicago Tribune)