Chicago Weather In May

In the last 52 years the highest measured May temperature in Chicago was 93 degrees Fahrenheit, registered on May 18, 1977, and the mean high is 70. The lowest documented temperature for Chicago for the past 52 years in May was 24 measured on May 10, 1966, while the mean low daily temperature during the month is 48.

National Weather Service historical Chicago May Weather data indicates that on May 11, 1981, the recorded high did not exceed 39 degrees Fahrenheit, the lowest high measured in Chicago in the past 52 years. Weather Service records additionally indicate that on May 28, 2006, the low for the day was not measured below 74 degrees, the highest low temperature recorded in Chicago in the last 52 years.

According to the National Weather Service, the high temperature in Chicago in May on the first day of the month averages 64 degrees and the high on the last day of the month averages 77 degrees. The low recorded temperature in Chicago on May First averages 42 degrees Fahrenheit and the low temperature on the final day of May averages 53 degrees.

Chicago usually receives an average of 3.38 inches of precipitation during the month. The most precipitation measured in a single day, as indicated by May Chicago Weather data, was 3.45 inches on May 29, 1981. Chicago averages 0.1 inches of snow in May.On May 11, 1966 Chicago received 1.6 inches of rain, the greatest snowfall measured in a single day in May.