Rockford Weather In May
The record high May temperature in Rockford Illinois for the last 60 years was 95 degrees Fahrenheit, most recently registered on May 19, 1975, and the mean high is 71. The lowest documented temperature for Rockford for the past 60 years in May was 24 most recently measured on May 2, 1966, and the standard low recorded daily temperature is 48.
United States NWS historical Rockford May Weather data records that on May 6, 1989, the high temperature did not exceed 39 degrees Fahrenheit, the lowest high measured in Rockford in the past 60 years. Weather Service records additionally indicate that on May 19, 1996, the low for the day was not measured below 72 degrees, the highest low temperature recorded in Rockford in the last 60 years.
According to the National Weather Service, the high temperature in Rockford in May on the first day of the month averages 66 degrees and the high on the last day of the month averages 77 degrees. The low measured temperature in Rockford on May First averages 43 degrees and the low on the last day of the month averages 54 degrees.
Rockford usually receives an average of 4.03 inches of precipitation during May. The most rain recorded in a single day, as shown by May Rockford Weather data, was 4.77 inches on May 28, 1996.