when does the weather get warmer in chicago
Climate of Chicago Temperatures can vary tremendously in the springtime; at 100 °F (38 °C), March is the month with the greatest span between the record high and low. At O'Hare, temperatures as low as 7 °F (−14 °C) and 31 °F (−1 °C) have been recorded as late as April 7 and May 21, respectively. Conversely, in official records, the earliest triple-digit (100 °F (38 °C)) high occurred on June 1, 1934, when official readings were taken closer to Lake Michigan. Though rare, triple-digit heat has occurred in May at Midway Airport and in outlying suburban locations. Typically, the last freezing low of the season on average occurs on April 13 at Midway and ten days later at O'Hare.