September was one of the warmest on record in Illinois with an average high of 71, which was 4.5 degrees above normal. The warmest September was in 1925 and 1933 with an average of 72.2 degrees.
September was one of the warmest on record in Illinois with an average high of 71, which was 4.5 degrees above normal. The warmest September was in 1925 and 1933 with an average of 72.2 degrees.
N @ 2 mph
83 %
0.0 in
30