By Jim Measel Jun 30, 2021 | 8:18 PM COLDWATER, MI (WTVB) â Students in the Coldwater Community School District will start the 2021-2022 school year on August 23 under the proposed calendar which was approved Monday night by the Coldwater School Board. The last day for students will be on June 2, 2022. Under state law, the number of pupil instruction days remains at 180. The graduation ceremony for Coldwater High School Seniors is scheduled to be held Sunday, May 22, 2022 at five oâ clock in the evening. In other business on Monday, the school granted 2.25 percent wage increases to all non-Coldwater Education Association and non-Coldwater Education Support Personnel Association members for the 2021-2022 school year.