FAIRFIELD — Schools dismissed early Monday and began late Tuesday due to slippery conditions from icy rain that turned to snow Monday evening.

Superintendent of Schools Mike Cummings announced Monday morning that schools would start on time but close early, given the worsening weather in the afternoon. All after-school and evening activities were cancelled.

Warde and Ludlowe closed at 11:45 a.m., while the middle schools closed at 12:40 p.m. Holland Hill Elementary School closed at 12:55 p.m., and the rest of the district’s elementary schools closed at 1:40 p.m.

Cummings announced Tuesday morning that all school openings would be delayed by two hours to give staff time to clean up before students arrived.

Many nearby school districts experienced similar delays.

The National Weather Service issued a winter weather advisory for the area, remaining in effect until 7 a.m. Tuesday.

“Travel could be very difficult. The hazardous conditions could impact the morning or evening commute,” read the warning. “Rain this morning will change to snow late this morning into afternoon. These amounts potentially could be higher should the transition to snow occur earlier. In addition, there is the potential for a heavy band of snow just to the west, with snowfall rates of one to two inches per hour. Should this band move over the advisory area, snowfall totals would be a few inches higher than forecast.”

Police reminded residents to drive slowly and carefully, and asked them to remain off the roads during cleanup.

According to Capt. Robert Kalamaras of the Fairfield Police Department, 12 crashes related to the weather had been reported as of 10 a.m. Monday morning. No serious injuries resulted from the crashes, he said.