September 2018 Climate Review: Warm and Wet Across the Area

Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms will be possible from the central Plains to the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Interior Alaska and the Four Corners region through Monday. Read More >

Public Information Statement National Weather Service Chicago IL 643 AM CDT Mon Oct 1 2018 /743 AM EDT Mon Oct 1 2018/ ...A Look Back at the Climate for the Month of September 2018 for Chicago and Rockford... At Chicago, the average high temperature was 77.5 degrees, which is 2.7 degrees above normal. The average low temperature was 60.4 degrees, which is 6.1 degrees above normal. The average temperature for the month was 69.0 degrees which is 4.4 degrees above normal. During the month of September, 3.65 inches of precipitation were recorded, which is 0.44 of an inch above normal. One record was set for Chicago for the month of September 2018: * Record daily warmest maximum temperature of 93 degrees on the 20th. No Top Ten Monthly Records. At Rockford, the average high temperature was 77.1 degrees, which is 1.7 degrees above normal. The average low temperature was 55.9 degrees, which is 3.5 degrees above normal. The average temperature for the month was 66.5 degrees, which is 2.6 degrees above normal. During the month of September, 5.57 inches of precipitation were recorded, which is 2.22 inches above normal. There were 2 records for Rockford for the month of September 2018: * Record daily precipitation of 1.72 inches on the 1st. * Tied record daily highest minimum temperature of 72 degrees on the 4th. No Top Ten Monthly Records. $$ ACS