Although there are no longer official temperature observations in Crystal Falls, Michigan State University concluded that temperatures are similar to those at the National Weather Service office in Marquette, Michigan. Temperature records kept from 1962 to 1989 by the National Climatic Data Center show a record high of 99 degrees on June 30, 1963, and July 20, 1977. The record low was -42 degrees on February 17, 1979. Annually, there were an average of 4.4 days with highs of 90 degrees or higher; 96.9 days with highs of 32 degrees or lower; 207.1 days with lows of 32 degrees or lower; and 55.1 days with lows of 0 degrees or lower. Freezing temperatures were recorded in every month except July, which had a record low of 33 degrees on July 6, 1965.